add gradle distribution sha256

Issue https://github.com/termux/termux-app/issues/686.

Note that there can be a better workaround which I don't know...

.editorconfig

@@ -14,3 +14,7 @@ insert_final_newline = true
 charset = utf-8
 indent_style = space
 indent_size = 4
+
+[*.y{a,}ml]
+indent_size = 2
+indent_style = space

.gitattributes

@@ -0,0 +1,3 @@
+*       text=auto
+*.bat   eol=crlf
+*.sh    eol=lf

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Create a report to help us improve Termux application
+
+---
+
+<!--
+IMPORTANT:
+
+1. Support of Android 5.x - 6.x is finished.
+2. Fill the template AFTER comments.
+-->
+
+**Problem description**
+<!--
+A clear and concise description of what the problem is.
+You may post screenshots in addition to description.
+-->
+
+**Steps to reproduce**
+<!--
+Steps to reproduce the behavior. Please post all necessary
+commands that are needed to reproduce the issue.
+-->
+
+**Expected behavior**
+<!--
+A clear and concise description of what you expected to happen.
+-->
+
+**Additional information**
+
+* Termux application version:
+* Android OS version:
+* Device model:

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest a new feature for Termux application
+
+---
+
+<!--
+IMPORTANT:
+
+1. Support of Android 5.x - 6.x is finished.
+2. Fill the template AFTER comments.
+-->
+
+**Feature description**
+<!--
+Describe the feature and why you want it.
+-->
+
+**Reference implementation**
+
+Does another app/terminal emulator have this feature?
+Provide links to more background information.

.github/workflows/debug_build.yml

@@ -0,0 +1,26 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v2
+    - name: Build
+      run: |
+        ./gradlew assembleDebug
+    - name: Store generated APK file
+      uses: actions/upload-artifact@v1
+      with:
+        name: termux-app
+        path: ./app/build/outputs/apk/debug/app-debug.apk

.github/workflows/gradle-wrapper-validation.yml

@@ -0,0 +1,19 @@
+name: "Validate Gradle Wrapper"
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  validation:
+    name: "Validation"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gradle/wrapper-validation-action@v1

.github/workflows/run_tests.yml

@@ -0,0 +1,21 @@
+name: Unit tests
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v2
+    - name: Execute tests
+      run: |
+        ./gradlew test

.gitignore

@@ -7,6 +7,8 @@ build/
 *.apk
 *.so
 .externalNativeBuild
+.cxx
+*.zip
 
 # Crashlytics configuations
 com_crashlytics_export_strings.xml
@@ -20,21 +22,8 @@ local.properties
 # Signing files
 .signing/
 
-# User-specific configurations
-.idea/libraries/
-.idea/workspace.xml
-.idea/tasks.xml
-.idea/.name
-.idea/compiler.xml
-.idea/copyright/profiles_settings.xml
-.idea/encodings.xml
-.idea/misc.xml
-.idea/modules.xml
-.idea/scopes/scope_settings.xml
-.idea/vcs.xml
-.idea/dictionaries/
-.idea/caches/
-.idea/codeStyles/
+# Intellij
+.idea/
 *.iml
 
 # OS-specific files
@@ -43,5 +32,6 @@ local.properties
 ._*
 .Spotlight-V100
 .Trashes
+.swp
 ehthumbs.db
 Thumbs.db

.idea/codeStyleSettings.xml

@@ -1,229 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectCodeStyleSettingsManager">
-    <option name="PER_PROJECT_SETTINGS">
-      <value>
-        <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
-        <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
-        <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
-          <value />
-        </option>
-        <option name="IMPORT_LAYOUT_TABLE">
-          <value>
-            <package name="android" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="com" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="junit" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="net" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="org" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="java" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="javax" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="" withSubpackages="true" static="true" />
-            <emptyLine />
-          </value>
-        </option>
-        <option name="RIGHT_MARGIN" value="100" />
-        <AndroidXmlCodeStyleSettings>
-          <option name="USE_CUSTOM_SETTINGS" value="true" />
-        </AndroidXmlCodeStyleSettings>
-        <Objective-C-extensions>
-          <option name="GENERATE_INSTANCE_VARIABLES_FOR_PROPERTIES" value="ASK" />
-          <option name="RELEASE_STYLE" value="IVAR" />
-          <option name="TYPE_QUALIFIERS_PLACEMENT" value="BEFORE" />
-          <file>
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
-          </file>
-          <class>
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
-          </class>
-          <extensions>
-            <pair source="cpp" header="h" />
-            <pair source="c" header="h" />
-          </extensions>
-        </Objective-C-extensions>
-        <XML>
-          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
-        </XML>
-        <codeStyleSettings language="XML">
-          <option name="FORCE_REARRANGE_MODE" value="1" />
-          <indentOptions>
-            <option name="CONTINUATION_INDENT_SIZE" value="4" />
-          </indentOptions>
-          <arrangement>
-            <rules>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:android</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:.*</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:id</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:name</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>name</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>style</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_width</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_.*</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:width</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>.*</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-            </rules>
-          </arrangement>
-        </codeStyleSettings>
-      </value>
-    </option>
-    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default (1)" />
-  </component>
-</project>

.idea/gradle.xml

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="disableWrapperSourceDistributionNotification" value="true" />
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-            <option value="$PROJECT_DIR$/terminal-emulator" />
-            <option value="$PROJECT_DIR$/terminal-view" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>

.idea/inspectionProfiles/Project_Default.xml

@@ -1,71 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="AndroidLintLogConditional" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="AndroidLintNegativeMargin" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="AssignmentUsedAsCondition" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="DeprecatedAPI" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="DuplicateSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="EmptyStatementBody" enabled="false" level="WARNING" enabled_by_default="false">
-      <option name="m_reportEmptyBlocks" value="true" />
-    </inspection_tool>
-    <inspection_tool class="EndlessLoop" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="EqualityInConditionalOperator" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="Finalize" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="ignoreTrivialFinalizers" value="true" />
-    </inspection_tool>
-    <inspection_tool class="FinalizeNotProtected" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="FormatSpecifiers" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="FunctionImplicitDeclarationInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="HidesUpperScope" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="HidingNonVirtualFunction" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="ImplicitIntegerAndEnumConversion" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="ImplicitPointerAndIntegerConversion" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="IncompatibleEnums" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="IncompatibleInitializers" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="IncompatiblePointers" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="InstanceofChain" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="ignoreInstanceofOnLibraryClasses" value="false" />
-    </inspection_tool>
-    <inspection_tool class="KRUnspecifiedParameters" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="LocalValueEscapesScope" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="LoggerInitializedWithForeignClass" enabled="false" level="WARNING" enabled_by_default="false">
-      <option name="loggerClassName" value="org.apache.log4j.Logger,org.slf4j.LoggerFactory,org.apache.commons.logging.LogFactory,java.util.logging.Logger" />
-      <option name="loggerFactoryMethodName" value="getLogger,getLogger,getLog,getLogger" />
-    </inspection_tool>
-    <inspection_tool class="MissingReturn" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="MissingSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="NotImplementedFunctions" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="NotInitializedVariable" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="NotSuperclass" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCDFAInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCLoopDoesntUseConditionVariableInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCSimplifyInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedGlobalDeclarationInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedMacroInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedStructInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedTemplateParameterInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OnDemandImport" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="PrivateMemberAccessBetweenOuterAndInnerClass" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="ResourceNotFoundInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="SamePackageImport" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="SignednessMismatch" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
-      <option name="processCode" value="true" />
-      <option name="processLiterals" value="true" />
-      <option name="processComments" value="true" />
-    </inspection_tool>
-    <inspection_tool class="UnnecessaryFullyQualifiedName" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="m_ignoreJavadoc" value="false" />
-    </inspection_tool>
-    <inspection_tool class="UnreachableCode" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedExpressionResult" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedImportStatement" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedLocalVariable" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedLocalization" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedParameter" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedValue" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="ValueMayNotFitIntoReceiver" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="VariableNotUsedInsideIf" enabled="true" level="WARNING" enabled_by_default="true" />
-  </profile>
-</component>

.idea/inspectionProfiles/profiles_settings.xml

@@ -1,7 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="PROJECT_PROFILE" value="Project Default" />
-    <option name="USE_PROJECT_PROFILE" value="true" />
-    <version value="1.0" />
-  </settings>
-</component>

.idea/runConfigurations.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>

.travis.yml

@@ -1,35 +0,0 @@
-sudo: false
-language: android
-jdk: oraclejdk8
-
-env:
-  global:
-    # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
-    # via the "travis encrypt" command using the project repo's public key
-    - secure: "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"
-
-android:
-  components:
-    - platform-tools
-    - tools
-    - build-tools-27.0.3
-    - android-27
-    - extra-android-m2repository
-
-before_install:
-  - git clone https://github.com/urho3d/android-ndk.git $HOME/android-ndk
-  - export ANDROID_NDK_HOME=$HOME/android-ndk
-  - yes | sdkmanager "platforms;android-27"
-
-script:
-  - ./gradlew testDebugUnitTest
-
-addons:
-  coverity_scan:
-    project:
-      name: "termux/termux-app"
-      description: "Terminal emulator and Linux environment for Android"
-    notification_email: fredrik@fornwall.net
-    build_command_prepend: "./gradlew clean"
-    build_command: "./gradlew build"
-    branch_pattern: master

README.md

@@ -1,32 +1,65 @@
-Termux app
-==========
-[![Travis build status](https://travis-ci.org/termux/termux-app.svg?branch=master)](https://travis-ci.org/termux/termux-app)
+# Termux application
+
+[![Build status](https://github.com/termux/termux-app/workflows/Build/badge.svg)](https://github.com/termux/termux-app/actions)
+[![Testing status](https://github.com/termux/termux-app/workflows/Unit%20tests/badge.svg)](https://github.com/termux/termux-app/actions)
 [![Join the chat at https://gitter.im/termux/termux](https://badges.gitter.im/termux/termux.svg)](https://gitter.im/termux/termux)
 
-[Termux](https://termux.com) is an Android terminal app and Linux environment.
+[Termux](https://termux.com) is an Android terminal application and Linux environment.
 
-* [Termux on Google Play Store](https://play.google.com/store/apps/details?id=com.termux)
-* [Termux on F-Droid](https://f-droid.org/repository/browse/?fdid=com.termux)
-* [Termux Facebook](https://facebook.com/termux/)
-* [Termux Google+ community](http://termux.com/community/)
-* [Termux Help](http://termux.com/help/)
-* [Termux Twitter](http://twitter.com/termux/)
-* [Termux Wiki](https://wiki.termux.com/wiki/)  
+- [Termux Reddit community](https://reddit.com/r/termux)
+- [Termux Wiki](https://wiki.termux.com/wiki/)
+- [Termux Twitter](http://twitter.com/termux/)
 
-Note that this repository is for the app itself (the user interface and the terminal emulation). For the packages installable inside the app, see [termux/termux-packages](https://github.com/termux/termux-packages)
+Note that this repository is for the app itself (the user interface and the
+terminal emulation). For the packages installable inside the app, see
+[termux/termux-packages](https://github.com/termux/termux-packages)
 
-Terminal resources
-==================
-* [XTerm control sequences](http://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
-* [vt100.net](http://vt100.net/)
-* [Terminal codes (ANSI and terminfo equivalents)](http://wiki.bash-hackers.org/scripting/terminalcodes)
+## Installation
 
-Terminal emulators
-==================
-* VTE (libvte): Terminal emulator widget for GTK+, mainly used in gnome-terminal. [Source](https://github.com/GNOME/vte), [Open Issues](https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22vte%22+), and [All (including closed) issues](https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&chfield=resolution&chfieldfrom=-2000d&chfieldvalue=FIXED&product=vte&resolution=FIXED).
-* iTerm 2: OS X terminal application. [Source](https://github.com/gnachman/iTerm2), [Issues](https://gitlab.com/gnachman/iterm2/issues) and [Documentation](http://www.iterm2.com/documentation.html) (which includes [iTerm2 proprietary escape codes](http://www.iterm2.com/documentation-escape-codes.html)).
-* Konsole: KDE terminal application. [Source](https://projects.kde.org/projects/kde/applications/konsole/repository), in particular [tests](https://projects.kde.org/projects/kde/applications/konsole/repository/revisions/master/show/tests), [Bugs](https://bugs.kde.org/buglist.cgi?bug_severity=critical&bug_severity=grave&bug_severity=major&bug_severity=crash&bug_severity=normal&bug_severity=minor&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole) and [Wishes](https://bugs.kde.org/buglist.cgi?bug_severity=wishlist&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole).
-* hterm: JavaScript terminal implementation from Chromium. [Source](https://github.com/chromium/hterm), including [tests](https://github.com/chromium/hterm/blob/master/js/hterm_vt_tests.js), and [Google group](https://groups.google.com/a/chromium.org/forum/#!forum/chromium-hterm).
-* xterm: The grandfather of terminal emulators. [Source](http://invisible-island.net/datafiles/release/xterm.tar.gz).
-* Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
-* Android Terminal Emulator: Android terminal app which Termux terminal handling is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).
+Termux application can be obtained from:
+
+- [Google Play](https://play.google.com/store/apps/details?id=com.termux)
+- [F-Droid](https://f-droid.org/en/packages/com.termux/)
+- [Kali Nethunter Store](https://store.nethunter.com/en/packages/com.termux/)
+
+Additionally we provide per-commit debug builds for those who want to try
+out the latest features or test their pull request. This build can be obtained
+from one of the workflow runs listed on [Github Actions](https://github.com/termux/termux-app/actions)
+page.
+
+Signature keys of all offered builds are different. Before you switch the
+installation source, you will have to uninstall the Termux application and
+all currently installed plugins.
+
+## Terminal resources
+
+- [XTerm control sequences](http://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
+- [vt100.net](http://vt100.net/)
+- [Terminal codes (ANSI and terminfo equivalents)](http://wiki.bash-hackers.org/scripting/terminalcodes)
+
+## Terminal emulators
+
+- VTE (libvte): Terminal emulator widget for GTK+, mainly used in gnome-terminal.
+  [Source](https://github.com/GNOME/vte), [Open Issues](https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22vte%22+),
+  and [All (including closed) issues](https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&chfield=resolution&chfieldfrom=-2000d&chfieldvalue=FIXED&product=vte&resolution=FIXED).
+
+- iTerm 2: OS X terminal application. [Source](https://github.com/gnachman/iTerm2),
+  [Issues](https://gitlab.com/gnachman/iterm2/issues) and [Documentation](http://www.iterm2.com/documentation.html)
+  (which includes [iTerm2 proprietary escape codes](http://www.iterm2.com/documentation-escape-codes.html)).
+
+- Konsole: KDE terminal application. [Source](https://projects.kde.org/projects/kde/applications/konsole/repository),
+  in particular [tests](https://projects.kde.org/projects/kde/applications/konsole/repository/revisions/master/show/tests),
+  [Bugs](https://bugs.kde.org/buglist.cgi?bug_severity=critical&bug_severity=grave&bug_severity=major&bug_severity=crash&bug_severity=normal&bug_severity=minor&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole)
+  and [Wishes](https://bugs.kde.org/buglist.cgi?bug_severity=wishlist&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole).
+
+- hterm: JavaScript terminal implementation from Chromium. [Source](https://github.com/chromium/hterm),
+  including [tests](https://github.com/chromium/hterm/blob/master/js/hterm_vt_tests.js),
+  and [Google group](https://groups.google.com/a/chromium.org/forum/#!forum/chromium-hterm).
+
+- xterm: The grandfather of terminal emulators.
+  [Source](http://invisible-island.net/datafiles/release/xterm.tar.gz).
+
+- Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
+
+- Android Terminal Emulator: Android terminal app which Termux terminal handling
+  is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).

app/build.gradle

@@ -1,20 +1,44 @@
-apply plugin: 'com.android.application'
+plugins {
+  id "com.android.application"
+}
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion project.properties.compileSdkVersion.toInteger()
+    ndkVersion project.properties.ndkVersion
 
     dependencies {
-        implementation 'com.android.support:support-annotations:27.1.1'
-        implementation "com.android.support:support-core-ui:27.1.1"
+        implementation "androidx.annotation:annotation:1.1.0"
+        implementation "androidx.viewpager:viewpager:1.0.0"
+        implementation "androidx.drawerlayout:drawerlayout:1.1.0"
         implementation project(":terminal-view")
     }
 
     defaultConfig {
         applicationId "com.termux"
-        minSdkVersion 21
-        targetSdkVersion 27
-        versionCode 63
-        versionName "0.63"
+        minSdkVersion project.properties.minSdkVersion.toInteger()
+        targetSdkVersion project.properties.targetSdkVersion.toInteger()
+        versionCode 99
+        versionName "0.99"
+
+        externalNativeBuild {
+            ndkBuild {
+                cFlags "-std=c11", "-Wall", "-Wextra", "-Werror", "-Os", "-fno-stack-protector", "-Wl,--gc-sections"
+            }
+        }
+
+        ndk {
+            abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+        }
+
+    }
+
+    signingConfigs {
+        debug {
+            storeFile file('dev_keystore.jks')
+            keyAlias 'alias'
+            storePassword 'xrj45yWGLbsO7W0v'
+            keyPassword 'xrj45yWGLbsO7W0v'
+        }
     }
 
     buildTypes {
@@ -23,9 +47,102 @@ android {
             shrinkResources true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+
+        debug {
+            signingConfig signingConfigs.debug
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    externalNativeBuild {
+        ndkBuild {
+            path "src/main/cpp/Android.mk"
+        }
+    }
+
+    testOptions {
+        unitTests {
+            includeAndroidResources = true
+        }
     }
 }
 
 dependencies {
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13'
+    testImplementation 'org.robolectric:robolectric:4.3.1'
+}
+
+task versionName {
+  doLast {
+    print android.defaultConfig.versionName
+  }
+}
+
+def downloadBootstrap(String arch, String expectedChecksum, int version) {
+    def digest = java.security.MessageDigest.getInstance("SHA-256")
+
+    def localUrl = "src/main/cpp/bootstrap-" + arch + ".zip"
+    def file = new File(projectDir, localUrl)
+    if (file.exists()) {
+        def buffer = new byte[8192]
+        def input = new FileInputStream(file)
+        while (true) {
+            def readBytes = input.read(buffer)
+            if (readBytes < 0) break
+            digest.update(buffer, 0, readBytes)
+        }
+        def checksum = new BigInteger(1, digest.digest()).toString(16)
+        if (checksum == expectedChecksum) {
+            return
+        } else {
+            logger.quiet("Deleting old local file with wrong hash: " + localUrl)
+            file.delete()
+        }
+    }
+
+    def remoteUrl = "https://bintray.com/termux/bootstrap/download_file?file_path=bootstrap-" + arch + "-v" + version + ".zip"
+    logger.quiet("Downloading " + remoteUrl + " ...")
+
+    file.parentFile.mkdirs()
+    def out = new BufferedOutputStream(new FileOutputStream(file))
+
+    def connection = new URL(remoteUrl).openConnection()
+    connection.setInstanceFollowRedirects(true)
+    def digestStream = new java.security.DigestInputStream(connection.inputStream, digest)
+    out << digestStream
+    out.close()
+
+    def checksum = new BigInteger(1, digest.digest()).toString(16)
+    if (checksum != expectedChecksum) {
+        file.delete()
+        throw new GradleException("Wrong checksum for " + remoteUrl + ": expected: " + expectedChecksum + ", actual: " + checksum)
+    }
+}
+
+clean {
+    doLast {
+        def tree = fileTree(new File(projectDir, 'src/main/cpp'))
+        tree.include 'bootstrap-*.zip'
+        tree.each { it.delete() }
+    }
+}
+
+task downloadBootstraps(){
+    doLast {
+        def version = 28
+        downloadBootstrap("aarch64", "8f8c8af1d6c50bd0d6ecd5a1df8d5b0c3122a945b6febd0de0308504b4075ed0", version)
+        downloadBootstrap("arm",     "179465f403a73fec6534363b11cb38eed3b6b3d8e9d922d8e55dc8a06813240d", version)
+        downloadBootstrap("i686",    "2100ebf36befde73b08efaa7e3ccc9c218a8b5e7d69db06e16e364ab8b7dfbd5", version)
+        downloadBootstrap("x86_64",  "3f5192f63595426370aa69f102fac07ae00c12154878eddec24e8406e640a67f", version)
+    }
+}
+
+afterEvaluate {
+  android.applicationVariants.all { variant ->
+    variant.javaCompileProvider.get().dependsOn(downloadBootstraps)
+  }
 }

app/src/main/AndroidManifest.xml

@@ -8,17 +8,24 @@
     <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
     <uses-feature android:name="android.software.leanback" android:required="false" />
 
+    <permission android:name="com.termux.permission.RUN_COMMAND"
+        android:label="@string/run_command_permission_label"
+        android:description="@string/run_command_permission_description"
+        android:icon="@drawable/ic_launcher"
+        android:protectionLevel="dangerous" />
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/>
 
     <application
         android:extractNativeLibs="true"
-        android:allowBackup="true"
-        android:fullBackupContent="@xml/backupscheme"
-        android:icon="@mipmap/ic_launcher"
-        android:roundIcon="@mipmap/ic_launcher_round"
+        android:allowBackup="false"
+        android:icon="@drawable/ic_launcher"
         android:banner="@drawable/banner"
         android:label="@string/application_name"
         android:theme="@style/Theme.Termux"
@@ -30,10 +37,11 @@
 
         <activity
             android:name="com.termux.app.TermuxActivity"
-            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+	    android:label="@string/application_name"
+	    android:configChanges="orientation|screenSize|smallestScreenSize|density|screenLayout|uiMode|keyboard|keyboardHidden|navigation"
             android:launchMode="singleTask"
             android:resizeableActivity="true"
-            android:windowSoftInputMode="adjustResize|stateAlwaysVisible" >
+	    android:windowSoftInputMode="adjustResize|stateAlwaysVisible" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -77,6 +85,7 @@
                 <action android:name="android.intent.action.VIEW"/>
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="text/*" />
+                <data android:mimeType="application/*log*" />
                 <data android:mimeType="application/json" />
                 <data android:mimeType="application/*xml*" />
                 <data android:mimeType="application/*latex*" />
@@ -111,6 +120,15 @@
             android:name="com.termux.app.TermuxService"
             android:exported="false" />
 
+        <service
+            android:name=".app.RunCommandService"
+            android:exported="true"
+            android:permission="com.termux.permission.RUN_COMMAND" >
+            <intent-filter>
+                <action android:name="com.termux.RUN_COMMAND" />
+            </intent-filter>
+        </service>
+
         <receiver android:name=".app.TermuxOpenReceiver" />
 
         <provider android:authorities="com.termux.files"
@@ -118,8 +136,8 @@
                   android:exported="true"
                   android:grantUriPermissions="true"
                   android:name="com.termux.app.TermuxOpenReceiver$ContentProvider" />
-
-        <meta-data android:name="com.sec.android.support.multiwindow" android:value="true" />
+	<meta-data android:name="com.sec.android.support.multiwindow" android:value="true" />
+	<meta-data android:name="com.samsung.android.multidisplay.keep_process_alive" android:value="true"/>
     </application>
 
 </manifest>

app/src/main/cpp/Android.mk

@@ -0,0 +1,5 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE := libtermux-bootstrap
+LOCAL_SRC_FILES := termux-bootstrap-zip.S termux-bootstrap.c
+include $(BUILD_SHARED_LIBRARY)

app/src/main/cpp/termux-bootstrap-zip.S

@@ -0,0 +1,18 @@
+     .global blob
+     .global blob_size
+     .section .rodata
+ blob:
+ #if defined __i686__
+     .incbin "bootstrap-i686.zip"
+ #elif defined __x86_64__
+     .incbin "bootstrap-x86_64.zip"
+ #elif defined __aarch64__
+     .incbin "bootstrap-aarch64.zip"
+ #elif defined __arm__
+     .incbin "bootstrap-arm.zip"
+ #else
+ # error Unsupported arch
+ #endif
+ 1:
+ blob_size:
+     .int 1b - blob

app/src/main/cpp/termux-bootstrap.c

@@ -0,0 +1,11 @@
+#include <jni.h>
+
+extern jbyte blob[];
+extern int blob_size;
+
+JNIEXPORT jbyteArray JNICALL Java_com_termux_app_TermuxInstaller_getZip(JNIEnv *env, __attribute__((__unused__)) jobject This)
+{
+    jbyteArray ret = (*env)->NewByteArray(env, blob_size);
+    (*env)->SetByteArrayRegion(env, ret, 0, blob_size, blob);
+    return ret;
+}

app/src/main/java/com/termux/app/BackgroundJob.java

@@ -1,5 +1,9 @@
 package com.termux.app;
 
+import android.app.Activity;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.os.Bundle;
 import android.util.Log;
 
 import java.io.BufferedReader;
@@ -24,7 +28,11 @@ public final class BackgroundJob {
 
     final Process mProcess;
 
-    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service) {
+    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service){
+        this(cwd, fileToExecute, args, service, null);
+    }
+
+    public BackgroundJob(String cwd, String fileToExecute, final String[] args, final TermuxService service, PendingIntent pendingIntent) {
         String[] env = buildEnvironment(false, cwd);
         if (cwd == null) cwd = TermuxService.HOME_PATH;
 
@@ -43,6 +51,28 @@ public final class BackgroundJob {
 
         mProcess = process;
         final int pid = getPid(mProcess);
+        final Bundle result = new Bundle();
+        final StringBuilder outResult = new StringBuilder();
+        final StringBuilder errResult = new StringBuilder();
+
+        Thread errThread = new Thread() {
+            @Override
+            public void run() {
+                InputStream stderr = mProcess.getErrorStream();
+                BufferedReader reader = new BufferedReader(new InputStreamReader(stderr, StandardCharsets.UTF_8));
+                String line;
+                try {
+                    // FIXME: Long lines.
+                    while ((line = reader.readLine()) != null) {
+                        errResult.append(line).append('\n');
+                        Log.i(LOG_TAG, "[" + pid + "] stderr: " + line);
+                    }
+                } catch (IOException e) {
+                    // Ignore.
+                }
+            }
+        };
+        errThread.start();
 
         new Thread() {
             @Override
@@ -50,11 +80,13 @@ public final class BackgroundJob {
                 Log.i(LOG_TAG, "[" + pid + "] starting: " + processDescription);
                 InputStream stdout = mProcess.getInputStream();
                 BufferedReader reader = new BufferedReader(new InputStreamReader(stdout, StandardCharsets.UTF_8));
+
                 String line;
                 try {
                     // FIXME: Long lines.
                     while ((line = reader.readLine()) != null) {
                         Log.i(LOG_TAG, "[" + pid + "] stdout: " + line);
+                        outResult.append(line).append('\n');
                     }
                 } catch (IOException e) {
                     Log.e(LOG_TAG, "Error reading output", e);
@@ -68,57 +100,73 @@ public final class BackgroundJob {
                     } else {
                         Log.w(LOG_TAG, "[" + pid + "] exited with code: " + exitCode);
                     }
+
+                    result.putString("stdout", outResult.toString());
+                    result.putInt("exitCode", exitCode);
+
+                    errThread.join();
+                    result.putString("stderr", errResult.toString());
+
+                    Intent data = new Intent();
+                    data.putExtra("result", result);
+
+                    if(pendingIntent != null) {
+                        try {
+                            pendingIntent.send(service.getApplicationContext(), Activity.RESULT_OK, data);
+                        } catch (PendingIntent.CanceledException e) {
+                            // The caller doesn't want the result? That's fine, just ignore
+                        }
+                    }
                 } catch (InterruptedException e) {
-                    // Ignore.
+                    // Ignore
                 }
             }
         }.start();
-
-
-        new Thread() {
-            @Override
-            public void run() {
-                InputStream stderr = mProcess.getErrorStream();
-                BufferedReader reader = new BufferedReader(new InputStreamReader(stderr, StandardCharsets.UTF_8));
-                String line;
-                try {
-                    // FIXME: Long lines.
-                    while ((line = reader.readLine()) != null) {
-                        Log.i(LOG_TAG, "[" + pid + "] stderr: " + line);
-                    }
-                } catch (IOException e) {
-                    // Ignore.
-                }
-            }
-        };
     }
 
-    public static String[] buildEnvironment(boolean failSafe, String cwd) {
+    private static void addToEnvIfPresent(List<String> environment, String name) {
+        String value = System.getenv(name);
+        if (value != null) {
+            environment.add(name + "=" + value);
+        }
+    }
+
+    static String[] buildEnvironment(boolean failSafe, String cwd) {
         new File(TermuxService.HOME_PATH).mkdirs();
 
         if (cwd == null) cwd = TermuxService.HOME_PATH;
 
-        final String termEnv = "TERM=xterm-256color";
-        final String homeEnv = "HOME=" + TermuxService.HOME_PATH;
-        final String prefixEnv = "PREFIX=" + TermuxService.PREFIX_PATH;
-        final String androidRootEnv = "ANDROID_ROOT=" + System.getenv("ANDROID_ROOT");
-        final String androidDataEnv = "ANDROID_DATA=" + System.getenv("ANDROID_DATA");
+        List<String> environment = new ArrayList<>();
+
+        environment.add("TERM=xterm-256color");
+        environment.add("COLORTERM=truecolor");
+        environment.add("HOME=" + TermuxService.HOME_PATH);
+        environment.add("PREFIX=" + TermuxService.PREFIX_PATH);
+        environment.add("BOOTCLASSPATH=" + System.getenv("BOOTCLASSPATH"));
+        environment.add("ANDROID_ROOT=" + System.getenv("ANDROID_ROOT"));
+        environment.add("ANDROID_DATA=" + System.getenv("ANDROID_DATA"));
         // EXTERNAL_STORAGE is needed for /system/bin/am to work on at least
         // Samsung S7 - see https://plus.google.com/110070148244138185604/posts/gp8Lk3aCGp3.
-        final String externalStorageEnv = "EXTERNAL_STORAGE=" + System.getenv("EXTERNAL_STORAGE");
+        environment.add("EXTERNAL_STORAGE=" + System.getenv("EXTERNAL_STORAGE"));
+
+        // These variables are needed if running on Android 10 and higher.
+        addToEnvIfPresent(environment, "ANDROID_ART_ROOT");
+        addToEnvIfPresent(environment, "DEX2OATBOOTCLASSPATH");
+        addToEnvIfPresent(environment, "ANDROID_I18N_ROOT");
+        addToEnvIfPresent(environment, "ANDROID_RUNTIME_ROOT");
+        addToEnvIfPresent(environment, "ANDROID_TZDATA_ROOT");
+
         if (failSafe) {
             // Keep the default path so that system binaries can be used in the failsafe session.
-            final String pathEnv = "PATH=" + System.getenv("PATH");
-            return new String[]{termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv, pathEnv, externalStorageEnv};
+            environment.add("PATH= " + System.getenv("PATH"));
         } else {
-            final String ldEnv = "LD_LIBRARY_PATH=" + TermuxService.PREFIX_PATH + "/lib";
-            final String langEnv = "LANG=en_US.UTF-8";
-            final String pathEnv = "PATH=" + TermuxService.PREFIX_PATH + "/bin:" + TermuxService.PREFIX_PATH + "/bin/applets";
-            final String pwdEnv = "PWD=" + cwd;
-            final String tmpdirEnv = "TMPDIR=" + TermuxService.PREFIX_PATH + "/tmp";
-
-            return new String[]{termEnv, homeEnv, prefixEnv, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv, tmpdirEnv};
+            environment.add("LANG=en_US.UTF-8");
+            environment.add("PATH=" + TermuxService.PREFIX_PATH + "/bin:" + TermuxService.PREFIX_PATH + "/bin/applets");
+            environment.add("PWD=" + cwd);
+            environment.add("TMPDIR=" + TermuxService.PREFIX_PATH + "/tmp");
         }
+
+        return environment.toArray(new String[0]);
     }
 
     public static int getPid(Process p) {
@@ -186,7 +234,7 @@ public final class BackgroundJob {
         if (interpreter != null) result.add(interpreter);
         result.add(fileToExecute);
         if (args != null) Collections.addAll(result, args);
-        return result.toArray(new String[result.size()]);
+        return result.toArray(new String[0]);
     }
 
 }

app/src/main/java/com/termux/app/BellUtil.java

@@ -0,0 +1,63 @@
+package com.termux.app;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.SystemClock;
+import android.os.Vibrator;
+
+public class BellUtil {
+    private static BellUtil instance = null;
+    private static final Object lock = new Object();
+
+    public static BellUtil getInstance(Context context) {
+        if (instance == null) {
+            synchronized (lock) {
+                if (instance == null) {
+                    instance = new BellUtil((Vibrator) context.getApplicationContext().getSystemService(Context.VIBRATOR_SERVICE));
+                }
+            }
+        }
+
+        return instance;
+    }
+
+    private static final long DURATION = 50;
+    private static final long MIN_PAUSE = 3 * DURATION;
+
+    private final Handler handler = new Handler(Looper.getMainLooper());
+    private long lastBell = 0;
+    private final Runnable bellRunnable;
+
+    private BellUtil(final Vibrator vibrator) {
+        bellRunnable = new Runnable() {
+            @Override
+            public void run() {
+                if (vibrator != null) {
+                    vibrator.vibrate(DURATION);
+                }
+            }
+        };
+    }
+
+    public synchronized void doBell() {
+        long now = now();
+        long timeSinceLastBell = now - lastBell;
+
+        if (timeSinceLastBell < 0) {
+            // there is a next bell pending; don't schedule another one
+        } else if (timeSinceLastBell < MIN_PAUSE) {
+            // there was a bell recently, scheudle the next one
+            handler.postDelayed(bellRunnable, MIN_PAUSE - timeSinceLastBell);
+            lastBell = lastBell + MIN_PAUSE;
+        } else {
+            // the last bell was long ago, do it now
+            bellRunnable.run();
+            lastBell = now;
+        }
+    }
+
+    private long now() {
+        return SystemClock.uptimeMillis();
+    }
+}

app/src/main/java/com/termux/app/DialogUtils.java

@@ -9,7 +9,6 @@ import android.view.KeyEvent;
 import android.view.ViewGroup.LayoutParams;
 import android.widget.EditText;
 import android.widget.LinearLayout;
-import android.widget.TextView;
 
 public final class DialogUtils {
 
@@ -31,13 +30,10 @@ public final class DialogUtils {
 
         final AlertDialog[] dialogHolder = new AlertDialog[1];
         input.setImeActionLabel(activity.getResources().getString(positiveButtonText), KeyEvent.KEYCODE_ENTER);
-        input.setOnEditorActionListener(new TextView.OnEditorActionListener() {
-            @Override
-            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
-                onPositive.onTextSet(input.getText().toString());
-                dialogHolder[0].dismiss();
-                return true;
-            }
+        input.setOnEditorActionListener((v, actionId, event) -> {
+            onPositive.onTextSet(input.getText().toString());
+            dialogHolder[0].dismiss();
+            return true;
         });
 
         float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, activity.getResources().getDisplayMetrics());
@@ -53,31 +49,16 @@ public final class DialogUtils {
 
         AlertDialog.Builder builder = new AlertDialog.Builder(activity)
             .setTitle(titleText).setView(layout)
-            .setPositiveButton(positiveButtonText, new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface d, int whichButton) {
-                    onPositive.onTextSet(input.getText().toString());
-                }
-            });
+            .setPositiveButton(positiveButtonText, (d, whichButton) -> onPositive.onTextSet(input.getText().toString()));
 
         if (onNeutral != null) {
-            builder.setNeutralButton(neutralButtonText, new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface dialog, int which) {
-                    onNeutral.onTextSet(input.getText().toString());
-                }
-            });
+            builder.setNeutralButton(neutralButtonText, (dialog, which) -> onNeutral.onTextSet(input.getText().toString()));
         }
 
         if (onNegative == null) {
             builder.setNegativeButton(android.R.string.cancel, null);
         } else {
-            builder.setNegativeButton(negativeButtonText, new DialogInterface.OnClickListener() {
-                @Override
-                public void onClick(DialogInterface dialog, int which) {
-                    onNegative.onTextSet(input.getText().toString());
-                }
-            });
+            builder.setNegativeButton(negativeButtonText, (dialog, which) -> onNegative.onTextSet(input.getText().toString()));
         }
 
         if (onDismiss != null) builder.setOnDismissListener(onDismiss);

app/src/main/java/com/termux/app/ExtraKeysInfos.java

@@ -0,0 +1,340 @@
+package com.termux.app;
+
+import android.text.TextUtils;
+
+import androidx.annotation.Nullable;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class ExtraKeysInfos {
+
+    /**
+     * Matrix of buttons displayed
+     */
+    private ExtraKeyButton[][] buttons;
+
+    /**
+     * This corresponds to one of the CharMapDisplay below
+     */
+    private String style = "default";
+
+    public ExtraKeysInfos(String propertiesInfo, String style) throws JSONException {
+        this.style = style;
+
+        // Convert String propertiesInfo to Array of Arrays
+        JSONArray arr = new JSONArray(propertiesInfo);
+        Object[][] matrix = new Object[arr.length()][];
+        for (int i = 0; i < arr.length(); i++) {
+            JSONArray line = arr.getJSONArray(i);
+            matrix[i] = new Object[line.length()];
+            for (int j = 0; j < line.length(); j++) {
+                matrix[i][j] = line.get(j);
+            }
+        }
+
+        // convert matrix to buttons
+        this.buttons = new ExtraKeyButton[matrix.length][];
+        for (int i = 0; i < matrix.length; i++) {
+            this.buttons[i] = new ExtraKeyButton[matrix[i].length];
+            for (int j = 0; j < matrix[i].length; j++) {
+                Object key = matrix[i][j];
+
+                JSONObject jobject = normalizeKeyConfig(key);
+
+                ExtraKeyButton button;
+
+                if(! jobject.has("popup")) {
+                    // no popup
+                    button = new ExtraKeyButton(getSelectedCharMap(), jobject);
+                } else {
+                    // a popup
+                    JSONObject popupJobject = normalizeKeyConfig(jobject.get("popup"));
+                    ExtraKeyButton popup = new ExtraKeyButton(getSelectedCharMap(), popupJobject);
+                    button = new ExtraKeyButton(getSelectedCharMap(), jobject, popup);
+                }
+
+                this.buttons[i][j] = button;
+            }
+        }
+    }
+
+    /**
+     * "hello" -> {"key": "hello"}
+     */
+    private static JSONObject normalizeKeyConfig(Object key) throws JSONException {
+        JSONObject jobject;
+        if(key instanceof String) {
+            jobject = new JSONObject();
+            jobject.put("key", key);
+        } else if(key instanceof JSONObject) {
+            jobject = (JSONObject) key;
+        } else {
+            throw new JSONException("An key in the extra-key matrix must be a string or an object");
+        }
+        return jobject;
+    }
+
+    public ExtraKeyButton[][] getMatrix() {
+        return buttons;
+    }
+
+    /**
+     * HashMap that implements Python dict.get(key, default) function.
+     * Default java.util .get(key) is then the same as .get(key, null);
+     */
+    static class CleverMap<K,V> extends HashMap<K,V> {
+        V get(K key, V defaultValue) {
+            if(containsKey(key))
+                return get(key);
+            else
+                return defaultValue;
+        }
+    }
+
+    static class CharDisplayMap extends CleverMap<String, String> {}
+
+    /**
+     * Keys are displayed in a natural looking way, like "→" for "RIGHT"
+     */
+    static final CharDisplayMap classicArrowsDisplay = new CharDisplayMap() {{
+        // classic arrow keys (for ◀ ▶ ▲ ▼ @see arrowVariationDisplay)
+        put("LEFT", "←"); // U+2190 ← LEFTWARDS ARROW
+        put("RIGHT", "→"); // U+2192 → RIGHTWARDS ARROW
+        put("UP", "↑"); // U+2191 ↑ UPWARDS ARROW
+        put("DOWN", "↓"); // U+2193 ↓ DOWNWARDS ARROW
+    }};
+
+    static final CharDisplayMap wellKnownCharactersDisplay = new CharDisplayMap() {{
+        // well known characters // https://en.wikipedia.org/wiki/{Enter_key, Tab_key, Delete_key}
+        put("ENTER", "↲"); // U+21B2 ↲ DOWNWARDS ARROW WITH TIP LEFTWARDS
+        put("TAB", "↹"); // U+21B9 ↹ LEFTWARDS ARROW TO BAR OVER RIGHTWARDS ARROW TO BAR
+        put("BKSP", "⌫"); // U+232B ⌫ ERASE TO THE LEFT sometimes seen and easy to understand
+        put("DEL", "⌦"); // U+2326 ⌦ ERASE TO THE RIGHT not well known but easy to understand
+        put("DRAWER", "☰"); // U+2630 ☰ TRIGRAM FOR HEAVEN not well known but easy to understand
+        put("KEYBOARD", "⌨"); // U+2328 ⌨ KEYBOARD not well known but easy to understand
+    }};
+
+    static final CharDisplayMap lessKnownCharactersDisplay = new CharDisplayMap() {{
+        // https://en.wikipedia.org/wiki/{Home_key, End_key, Page_Up_and_Page_Down_keys}
+        // home key can mean "goto the beginning of line" or "goto first page" depending on context, hence the diagonal
+        put("HOME", "⇱"); // from IEC 9995 // U+21F1 ⇱ NORTH WEST ARROW TO CORNER
+        put("END", "⇲"); // from IEC 9995 // ⇲ // U+21F2 ⇲ SOUTH EAST ARROW TO CORNER
+        put("PGUP", "⇑"); // no ISO character exists, U+21D1 ⇑ UPWARDS DOUBLE ARROW will do the trick
+        put("PGDN", "⇓"); // no ISO character exists, U+21D3 ⇓ DOWNWARDS DOUBLE ARROW will do the trick
+    }};
+
+    static final CharDisplayMap arrowTriangleVariationDisplay = new CharDisplayMap() {{
+        // alternative to classic arrow keys
+        put("LEFT", "◀"); // U+25C0 ◀ BLACK LEFT-POINTING TRIANGLE
+        put("RIGHT", "▶"); // U+25B6 ▶ BLACK RIGHT-POINTING TRIANGLE
+        put("UP", "▲"); // U+25B2 ▲ BLACK UP-POINTING TRIANGLE
+        put("DOWN", "▼"); // U+25BC ▼ BLACK DOWN-POINTING TRIANGLE
+    }};
+
+    static final CharDisplayMap notKnownIsoCharacters = new CharDisplayMap() {{
+        // Control chars that are more clear as text // https://en.wikipedia.org/wiki/{Function_key, Alt_key, Control_key, Esc_key}
+        // put("FN", "FN"); // no ISO character exists
+        put("CTRL", "⎈"); // ISO character "U+2388 ⎈ HELM SYMBOL" is unknown to people and never printed on computers, however "U+25C7 ◇ WHITE DIAMOND" is a nice presentation, and "^" for terminal app and mac is often used
+        put("ALT", "⎇"); // ISO character "U+2387 ⎇ ALTERNATIVE KEY SYMBOL'" is unknown to people and only printed as the Option key "⌥" on Mac computer
+        put("ESC", "⎋"); // ISO character "U+238B ⎋ BROKEN CIRCLE WITH NORTHWEST ARROW" is unknown to people and not often printed on computers
+    }};
+
+    static final CharDisplayMap nicerLookingDisplay = new CharDisplayMap() {{
+        // nicer looking for most cases
+        put("-", "―"); // U+2015 ― HORIZONTAL BAR
+    }};
+
+    /**
+     * Multiple maps are available to quickly change
+     * the style of the keys.
+     */
+
+    /**
+     * Some classic symbols everybody knows
+     */
+    private static final CharDisplayMap defaultCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        putAll(wellKnownCharactersDisplay);
+        putAll(nicerLookingDisplay);
+        // all other characters are displayed as themselves
+    }};
+
+    /**
+     * Classic symbols and less known symbols
+     */
+    private static final CharDisplayMap lotsOfArrowsCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        putAll(wellKnownCharactersDisplay);
+        putAll(lessKnownCharactersDisplay); // NEW
+        putAll(nicerLookingDisplay);
+    }};
+
+    /**
+     * Only arrows
+     */
+    private static final CharDisplayMap arrowsOnlyCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        // putAll(wellKnownCharactersDisplay); // REMOVED
+        // putAll(lessKnownCharactersDisplay); // REMOVED
+        putAll(nicerLookingDisplay);
+    }};
+
+    /**
+     * Full Iso
+     */
+    private static final CharDisplayMap fullIsoCharDisplay = new CharDisplayMap() {{
+        putAll(classicArrowsDisplay);
+        putAll(wellKnownCharactersDisplay);
+        putAll(lessKnownCharactersDisplay); // NEW
+        putAll(nicerLookingDisplay);
+        putAll(notKnownIsoCharacters); // NEW
+    }};
+
+    /**
+     * Some people might call our keys differently
+     */
+    static private final CharDisplayMap controlCharsAliases = new CharDisplayMap() {{
+        put("ESCAPE", "ESC");
+        put("CONTROL", "CTRL");
+        put("RETURN", "ENTER"); // Technically different keys, but most applications won't see the difference
+        put("FUNCTION", "FN");
+        // no alias for ALT
+
+        // Directions are sometimes written as first and last letter for brevety
+        put("LT", "LEFT");
+        put("RT", "RIGHT");
+        put("DN", "DOWN");
+        // put("UP", "UP"); well, "UP" is already two letters
+
+        put("PAGEUP", "PGUP");
+        put("PAGE_UP", "PGUP");
+        put("PAGE UP", "PGUP");
+        put("PAGE-UP", "PGUP");
+
+        // no alias for HOME
+        // no alias for END
+
+        put("PAGEDOWN", "PGDN");
+        put("PAGE_DOWN", "PGDN");
+        put("PAGE-DOWN", "PGDN");
+
+        put("DELETE", "DEL");
+        put("BACKSPACE", "BKSP");
+
+        // easier for writing in termux.properties
+        put("BACKSLASH", "\\");
+        put("QUOTE", "\"");
+        put("APOSTROPHE", "'");
+    }};
+
+    CharDisplayMap getSelectedCharMap() {
+        switch (style) {
+            case "arrows-only":
+                return arrowsOnlyCharDisplay;
+            case "arrows-all":
+                return lotsOfArrowsCharDisplay;
+            case "all":
+                return fullIsoCharDisplay;
+            case "none":
+                return new CharDisplayMap();
+            default:
+                return defaultCharDisplay;
+        }
+    }
+
+    /**
+     * Applies the 'controlCharsAliases' mapping to all the strings in *buttons*
+     * Modifies the array, doesn't return a new one.
+     */
+    public static String replaceAlias(String key) {
+        return controlCharsAliases.get(key, key);
+    }
+}
+
+class ExtraKeyButton {
+
+    /**
+     * The key that will be sent to the terminal, either a control character
+     * defined in ExtraKeysView.keyCodesForString (LEFT, RIGHT, PGUP...) or
+     * some text.
+     */
+    private String key;
+
+    /**
+     * If the key is a macro, i.e. a sequence of keys separated by space.
+     */
+    private boolean macro;
+
+    /**
+     * The text that will be shown on the button.
+     */
+    private String display;
+
+    /**
+     * The information of the popup (triggered by swipe up).
+     */
+    @Nullable
+    private ExtraKeyButton popup = null;
+
+    public ExtraKeyButton(ExtraKeysInfos.CharDisplayMap charDisplayMap, JSONObject config) throws JSONException {
+        this(charDisplayMap, config, null);
+    }
+
+    public ExtraKeyButton(ExtraKeysInfos.CharDisplayMap charDisplayMap, JSONObject config, ExtraKeyButton popup) throws JSONException {
+        String keyFromConfig = config.optString("key", null);
+        String macroFromConfig = config.optString("macro", null);
+        String[] keys;
+        if (keyFromConfig != null && macroFromConfig != null) {
+            throw new JSONException("Both key and macro can't be set for the same key");
+        } else if (keyFromConfig != null) {
+            keys = new String[]{keyFromConfig};
+            this.macro = false;
+        } else if (macroFromConfig != null) {
+            keys = macroFromConfig.split(" ");
+            this.macro = true;
+        } else {
+            throw new JSONException("All keys have to specify either key or macro");
+        }
+
+        for (int i = 0; i < keys.length; i++) {
+            keys[i] = ExtraKeysInfos.replaceAlias(keys[i]);
+        }
+
+        this.key = TextUtils.join(" ", keys);
+
+        String displayFromConfig = config.optString("display", null);
+        if (displayFromConfig != null) {
+            this.display = displayFromConfig;
+        } else {
+            this.display = Arrays.stream(keys)
+                .map(key -> charDisplayMap.get(key, key))
+                .collect(Collectors.joining(" "));
+        }
+
+        this.popup = popup;
+    }
+
+    public String getKey() {
+        return key;
+    }
+
+    public boolean isMacro() {
+        return macro;
+    }
+
+    public String getDisplay() {
+        return display;
+    }
+
+    @Nullable
+    public ExtraKeyButton getPopup() {
+        return popup;
+    }
+}

app/src/main/java/com/termux/app/ExtraKeysView.java

@@ -1,26 +1,35 @@
 package com.termux.app;
 
+import android.annotation.SuppressLint;
 import android.content.Context;
+import android.os.Build;
+import android.provider.Settings;
 import android.util.AttributeSet;
 
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.ScheduledExecutorService;
 
+import java.util.Map;
+import java.util.HashMap;
+import java.util.Arrays;
+
 import android.view.Gravity;
 import android.view.HapticFeedbackConstants;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
+import android.view.inputmethod.InputMethodManager;
 import android.widget.Button;
 import android.widget.GridLayout;
 import android.widget.PopupWindow;
 import android.widget.ToggleButton;
 
 import com.termux.R;
-import com.termux.terminal.TerminalSession;
 import com.termux.view.TerminalView;
 
+import androidx.drawerlayout.widget.DrawerLayout;
+
 /**
  * A view showing extra keys (such as Escape, Ctrl, Alt) not normally available on an Android soft
  * keyboard.
@@ -28,101 +37,132 @@ import com.termux.view.TerminalView;
 public final class ExtraKeysView extends GridLayout {
 
     private static final int TEXT_COLOR = 0xFFFFFFFF;
-    private static final int BUTTON_COLOR = 0xFF000000;
-    private static final int BUTTON_PRESSED_COLOR = 0xFF888888;
+    private static final int BUTTON_COLOR = 0x00000000;
+    private static final int INTERESTING_COLOR = 0xFF80DEEA;
+    private static final int BUTTON_PRESSED_COLOR = 0xFF7F7F7F;
 
     public ExtraKeysView(Context context, AttributeSet attrs) {
         super(context, attrs);
-
-        reload();
     }
 
-    static void sendKey(View view, String keyName) {
-        int keyCode = 0;
-        String chars = null;
-        switch (keyName) {
-            case "ESC":
-                keyCode = KeyEvent.KEYCODE_ESCAPE;
-                break;
-            case "TAB":
-                keyCode = KeyEvent.KEYCODE_TAB;
-                break;
-            case "HOME":
-                keyCode = KeyEvent.KEYCODE_MOVE_HOME;
-                break;
-            case "END":
-                keyCode = KeyEvent.KEYCODE_MOVE_END;
-                break;
-            case "PGUP":
-                keyCode = KeyEvent.KEYCODE_PAGE_UP;
-                break;
-            case "PGDN":
-                keyCode = KeyEvent.KEYCODE_PAGE_DOWN;
-                break;
-            case "↑":
-                keyCode = KeyEvent.KEYCODE_DPAD_UP;
-                break;
-            case "←":
-                keyCode = KeyEvent.KEYCODE_DPAD_LEFT;
-                break;
-            case "→":
-                keyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
-                break;
-            case "↓":
-                keyCode = KeyEvent.KEYCODE_DPAD_DOWN;
-                break;
-            case "―":
-                chars = "-";
-                break;
-            default:
-                chars = keyName;
-        }
+    static final Map<String, Integer> keyCodesForString = new HashMap<String, Integer>() {{
+        put("SPACE", KeyEvent.KEYCODE_SPACE);
+        put("ESC", KeyEvent.KEYCODE_ESCAPE);
+        put("TAB", KeyEvent.KEYCODE_TAB);
+        put("HOME", KeyEvent.KEYCODE_MOVE_HOME);
+        put("END", KeyEvent.KEYCODE_MOVE_END);
+        put("PGUP", KeyEvent.KEYCODE_PAGE_UP);
+        put("PGDN", KeyEvent.KEYCODE_PAGE_DOWN);
+        put("INS", KeyEvent.KEYCODE_INSERT);
+        put("DEL", KeyEvent.KEYCODE_FORWARD_DEL);
+        put("BKSP", KeyEvent.KEYCODE_DEL);
+        put("UP", KeyEvent.KEYCODE_DPAD_UP);
+        put("LEFT", KeyEvent.KEYCODE_DPAD_LEFT);
+        put("RIGHT", KeyEvent.KEYCODE_DPAD_RIGHT);
+        put("DOWN", KeyEvent.KEYCODE_DPAD_DOWN);
+        put("ENTER", KeyEvent.KEYCODE_ENTER);
+        put("F1", KeyEvent.KEYCODE_F1);
+        put("F2", KeyEvent.KEYCODE_F2);
+        put("F3", KeyEvent.KEYCODE_F3);
+        put("F4", KeyEvent.KEYCODE_F4);
+        put("F5", KeyEvent.KEYCODE_F5);
+        put("F6", KeyEvent.KEYCODE_F6);
+        put("F7", KeyEvent.KEYCODE_F7);
+        put("F8", KeyEvent.KEYCODE_F8);
+        put("F9", KeyEvent.KEYCODE_F9);
+        put("F10", KeyEvent.KEYCODE_F10);
+        put("F11", KeyEvent.KEYCODE_F11);
+        put("F12", KeyEvent.KEYCODE_F12);
+    }};
 
+    private void sendKey(View view, String keyName, boolean forceCtrlDown, boolean forceLeftAltDown) {
         TerminalView terminalView = view.findViewById(R.id.terminal_view);
-        if (keyCode > 0) {
-            terminalView.onKeyDown(keyCode, new KeyEvent(KeyEvent.ACTION_UP, keyCode));
-//          view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
+        if ("KEYBOARD".equals(keyName)) {
+            InputMethodManager imm = (InputMethodManager) getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.toggleSoftInput(0, 0);
+        } else if ("DRAWER".equals(keyName)) {
+            DrawerLayout drawer = view.findViewById(R.id.drawer_layout);
+            drawer.openDrawer(Gravity.LEFT);
+        } else if (keyCodesForString.containsKey(keyName)) {
+            int keyCode = keyCodesForString.get(keyName);
+            int metaState = 0;
+            if (forceCtrlDown) {
+                metaState |= KeyEvent.META_CTRL_ON | KeyEvent.META_CTRL_LEFT_ON;
+            }
+            if (forceLeftAltDown) {
+                metaState |= KeyEvent.META_ALT_ON | KeyEvent.META_ALT_LEFT_ON;
+            }
+            KeyEvent keyEvent = new KeyEvent(0, 0, KeyEvent.ACTION_UP, keyCode, 0, metaState);
+            terminalView.onKeyDown(keyCode, keyEvent);
         } else {
-            TerminalSession session = terminalView.getCurrentSession();
-            if (session != null) session.write(chars);
+            // not a control char
+            keyName.codePoints().forEach(codePoint -> {
+                terminalView.inputCodePoint(codePoint, forceCtrlDown, forceLeftAltDown);
+            });
         }
     }
 
-    private ToggleButton controlButton;
-    private ToggleButton altButton;
-    private ToggleButton fnButton;
+    private void sendKey(View view, ExtraKeyButton buttonInfo) {
+        if (buttonInfo.isMacro()) {
+            String[] keys = buttonInfo.getKey().split(" ");
+            boolean ctrlDown = false;
+            boolean altDown = false;
+            for (String key : keys) {
+                if ("CTRL".equals(key)) {
+                    ctrlDown = true;
+                } else if ("ALT".equals(key)) {
+                    altDown = true;
+                } else {
+                    sendKey(view, key, ctrlDown, altDown);
+                    ctrlDown = false;
+                    altDown = false;
+                }
+            }
+        } else {
+            sendKey(view, buttonInfo.getKey(), false, false);
+        }
+    }
+
+    public enum SpecialButton {
+        CTRL, ALT, FN
+    }
+
+    private static class SpecialButtonState {
+        boolean isOn = false;
+        ToggleButton button = null;
+    }
+
+    private Map<SpecialButton, SpecialButtonState> specialButtons = new HashMap<SpecialButton, SpecialButtonState>() {{
+        put(SpecialButton.CTRL, new SpecialButtonState());
+        put(SpecialButton.ALT, new SpecialButtonState());
+        put(SpecialButton.FN, new SpecialButtonState());
+    }};
+
     private ScheduledExecutorService scheduledExecutor;
     private PopupWindow popupWindow;
     private int longPressCount;
 
-    public boolean readControlButton() {
-        if (controlButton.isPressed()) return true;
-        boolean result = controlButton.isChecked();
-        if (result) {
-            controlButton.setChecked(false);
-            controlButton.setTextColor(TEXT_COLOR);
-        }
-        return result;
-    }
+    public boolean readSpecialButton(SpecialButton name) {
+        SpecialButtonState state = specialButtons.get(name);
+        if (state == null)
+            throw new RuntimeException("Must be a valid special button (see source)");
 
-    public boolean readAltButton() {
-        if (altButton.isPressed()) return true;
-        boolean result = altButton.isChecked();
-        if (result) {
-            altButton.setChecked(false);
-            altButton.setTextColor(TEXT_COLOR);
-        }
-        return result;
-    }
+        if (! state.isOn)
+            return false;
 
-    public boolean readFnButton() {
-        if (fnButton.isPressed()) return true;
-        boolean result = fnButton.isChecked();
-        if (result) {
-            fnButton.setChecked(false);
-            fnButton.setTextColor(TEXT_COLOR);
+        if (state.button == null) {
+            return false;
         }
-        return result;
+
+        if (state.button.isPressed())
+            return true;
+
+        if (! state.button.isChecked())
+            return false;
+
+        state.button.setChecked(false);
+        state.button.setTextColor(TEXT_COLOR);
+        return true;
     }
 
     void popup(View view, String text) {
@@ -148,130 +188,160 @@ public final class ExtraKeysView extends GridLayout {
         popupWindow.showAsDropDown(view, 0, -2 * height);
     }
 
-    void reload() {
-        altButton = controlButton = null;
+    /**
+     * General util function to compute the longest column length in a matrix.
+     */
+    static int maximumLength(Object[][] matrix) {
+        int m = 0;
+        for (Object[] row : matrix)
+            m = Math.max(m, row.length);
+        return m;
+    }
+
+    /**
+     * Reload the view given parameters in termux.properties
+     *
+     * @param infos matrix as defined in termux.properties extrakeys
+     * Can Contain The Strings CTRL ALT TAB FN ENTER LEFT RIGHT UP DOWN or normal strings
+     * Some aliases are possible like RETURN for ENTER, LT for LEFT and more (@see controlCharsAliases for the whole list).
+     * Any string of length > 1 in total Uppercase will print a warning
+     *
+     * Examples:
+     * "ENTER" will trigger the ENTER keycode
+     * "LEFT" will trigger the LEFT keycode and be displayed as "←"
+     * "→" will input a "→" character
+     * "−" will input a "−" character
+     * "-_-" will input the string "-_-"
+     */
+    @SuppressLint("ClickableViewAccessibility")
+    void reload(ExtraKeysInfos infos) {
+        if(infos == null)
+            return;
+
+        for(SpecialButtonState state : specialButtons.values())
+            state.button = null;
+
         removeAllViews();
 
-        String[][] buttons = {
-            {"ESC", "/", "―", "HOME", "↑", "END", "PGUP"},
-            {"TAB", "CTRL", "ALT", "←", "↓", "→", "PGDN"}
-        };
+        ExtraKeyButton[][] buttons = infos.getMatrix();
 
-        final int rows = buttons.length;
-        final int[] cols = {buttons[0].length, buttons[1].length};
+        setRowCount(buttons.length);
+        setColumnCount(maximumLength(buttons));
 
-        setRowCount(rows);
-        setColumnCount(cols[0]);
+        for (int row = 0; row < buttons.length; row++) {
+            for (int col = 0; col < buttons[row].length; col++) {
+                final ExtraKeyButton buttonInfo = buttons[row][col];
 
-        for (int row = 0; row < rows; row++) {
-            for (int col = 0; col < cols[row]; col++) {
-                final String buttonText = buttons[row][col];
                 Button button;
-                switch (buttonText) {
-                    case "CTRL":
-                        button = controlButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        button.setClickable(true);
-                        break;
-                    case "ALT":
-                        button = altButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        button.setClickable(true);
-                        break;
-                    case "FN":
-                        button = fnButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        button.setClickable(true);
-                        break;
-                    default:
-                        button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        break;
+                if(Arrays.asList("CTRL", "ALT", "FN").contains(buttonInfo.getKey())) {
+                    SpecialButtonState state = specialButtons.get(SpecialButton.valueOf(buttonInfo.getKey())); // for valueOf: https://stackoverflow.com/a/604426/1980630
+                    state.isOn = true;
+                    button = state.button = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
+                    button.setClickable(true);
+                } else {
+                    button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
                 }
 
-                button.setText(buttonText);
+                button.setText(buttonInfo.getDisplay());
                 button.setTextColor(TEXT_COLOR);
                 button.setPadding(0, 0, 0, 0);
 
                 final Button finalButton = button;
-                button.setOnClickListener(new OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
-                        View root = getRootView();
-                        switch (buttonText) {
-                            case "CTRL":
-                            case "ALT":
-                            case "FN":
-                                ToggleButton self = (ToggleButton) finalButton;
-                                self.setChecked(self.isChecked());
-                                self.setTextColor(self.isChecked() ? 0xFF80DEEA : TEXT_COLOR);
-                                break;
-                            default:
-                                sendKey(root, buttonText);
-                                break;
+                button.setOnClickListener(v -> {
+                    if (Settings.System.getInt(getContext().getContentResolver(),
+                        Settings.System.HAPTIC_FEEDBACK_ENABLED, 0) != 0) {
+
+                        if (Build.VERSION.SDK_INT >= 28) {
+                            finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
+                        } else {
+                            // Perform haptic feedback only if no total silence mode enabled.
+                            if (Settings.Global.getInt(getContext().getContentResolver(), "zen_mode", 0) != 2) {
+                                finalButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
+                            }
                         }
                     }
+
+                    View root = getRootView();
+                    if (Arrays.asList("CTRL", "ALT", "FN").contains(buttonInfo.getKey())) {
+                        ToggleButton self = (ToggleButton) finalButton;
+                        self.setChecked(self.isChecked());
+                        self.setTextColor(self.isChecked() ? INTERESTING_COLOR : TEXT_COLOR);
+                    } else {
+                        sendKey(root, buttonInfo);
+                    }
                 });
 
-                button.setOnTouchListener(new OnTouchListener() {
-                    @Override
-                    public boolean onTouch(View v, MotionEvent event) {
-                        final View root = getRootView();
-                        switch (event.getAction()) {
-                            case MotionEvent.ACTION_DOWN:
-                                longPressCount = 0;
-                                v.setBackgroundColor(BUTTON_PRESSED_COLOR);
-                                if ("↑↓←→".contains(buttonText)) {
-                                    scheduledExecutor = Executors.newSingleThreadScheduledExecutor();
-                                    scheduledExecutor.scheduleWithFixedDelay(new Runnable() {
-                                        @Override
-                                        public void run() {
-                                            longPressCount++;
-                                            sendKey(root, buttonText);
-                                        }
-                                    }, 400, 80, TimeUnit.MILLISECONDS);
-                                }
-                                return true;
-                            case MotionEvent.ACTION_MOVE:
-                                if ("―/".contains(buttonText)) {
-                                    if (popupWindow == null && event.getY() < 0) {
-                                        v.setBackgroundColor(BUTTON_COLOR);
-                                        String text = "―".equals(buttonText) ? "|" : "\\";
-                                        popup(v, text);
-                                    }
-                                    if (popupWindow != null && event.getY() > 0) {
-                                        v.setBackgroundColor(BUTTON_PRESSED_COLOR);
-                                        popupWindow.dismiss();
-                                        popupWindow = null;
-                                    }
-                                }
-                                return true;
-                            case MotionEvent.ACTION_UP:
-                            case MotionEvent.ACTION_CANCEL:
-                                v.setBackgroundColor(BUTTON_COLOR);
-                                if (scheduledExecutor != null) {
-                                    scheduledExecutor.shutdownNow();
-                                    scheduledExecutor = null;
-                                }
-                                if (longPressCount == 0) {
-                                    if (popupWindow != null && "―/".contains(buttonText)) {
-                                        popupWindow.setContentView(null);
-                                        popupWindow.dismiss();
-                                        popupWindow = null;
-                                        sendKey(root, "―".equals(buttonText) ? "|" : "\\");
-                                    } else {
-                                        v.performClick();
-                                    }
-                                }
-                                return true;
-                            default:
-                                return true;
-                        }
+                button.setOnTouchListener((v, event) -> {
+                    final View root = getRootView();
+                    switch (event.getAction()) {
+                        case MotionEvent.ACTION_DOWN:
+                            longPressCount = 0;
+                            v.setBackgroundColor(BUTTON_PRESSED_COLOR);
+                            if (Arrays.asList("UP", "DOWN", "LEFT", "RIGHT", "BKSP", "DEL").contains(buttonInfo.getKey())) {
+                                // autorepeat
+                                scheduledExecutor = Executors.newSingleThreadScheduledExecutor();
+                                scheduledExecutor.scheduleWithFixedDelay(() -> {
+                                    longPressCount++;
+                                    sendKey(root, buttonInfo);
+                                }, 400, 80, TimeUnit.MILLISECONDS);
+                            }
+                            return true;
 
+                        case MotionEvent.ACTION_MOVE:
+                            if (buttonInfo.getPopup() != null) {
+                                if (popupWindow == null && event.getY() < 0) {
+                                    if (scheduledExecutor != null) {
+                                        scheduledExecutor.shutdownNow();
+                                        scheduledExecutor = null;
+                                    }
+                                    v.setBackgroundColor(BUTTON_COLOR);
+                                    String extraButtonDisplayedText = buttonInfo.getPopup().getDisplay();
+                                    popup(v, extraButtonDisplayedText);
+                                }
+                                if (popupWindow != null && event.getY() > 0) {
+                                    v.setBackgroundColor(BUTTON_PRESSED_COLOR);
+                                    popupWindow.dismiss();
+                                    popupWindow = null;
+                                }
+                            }
+                            return true;
+
+                        case MotionEvent.ACTION_CANCEL:
+                            v.setBackgroundColor(BUTTON_COLOR);
+                            if (scheduledExecutor != null) {
+                                scheduledExecutor.shutdownNow();
+                                scheduledExecutor = null;
+                            }
+                            return true;
+                        case MotionEvent.ACTION_UP:
+                            v.setBackgroundColor(BUTTON_COLOR);
+                            if (scheduledExecutor != null) {
+                                scheduledExecutor.shutdownNow();
+                                scheduledExecutor = null;
+                            }
+                            if (longPressCount == 0 || popupWindow != null) {
+                                if (popupWindow != null) {
+                                    popupWindow.setContentView(null);
+                                    popupWindow.dismiss();
+                                    popupWindow = null;
+                                    if (buttonInfo.getPopup() != null) {
+                                        sendKey(root, buttonInfo.getPopup());
+                                    }
+                                } else {
+                                    v.performClick();
+                                }
+                            }
+                            return true;
+
+                        default:
+                            return true;
                     }
                 });
 
                 LayoutParams param = new GridLayout.LayoutParams();
-                param.width = param.height = 0;
+                param.width = 0;
+                param.height = 0;
                 param.setMargins(0, 0, 0, 0);
-                param.setGravity(Gravity.LEFT);
                 param.columnSpec = GridLayout.spec(col, GridLayout.FILL, 1.f);
                 param.rowSpec = GridLayout.spec(row, GridLayout.FILL, 1.f);
                 button.setLayoutParams(param);

app/src/main/java/com/termux/app/RunCommandService.java

@@ -0,0 +1,102 @@
+package com.termux.app;
+
+import android.app.Service;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Build;
+import android.os.IBinder;
+import android.util.Log;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+import java.util.Properties;
+
+/**
+ * When allow-external-apps property is set to "true" in ~/.termux/termux.properties, Termux 
+ * is able to process execute intents sent by third-party applications.
+ *
+ * Third-party program must declare com.termux.permission.RUN_COMMAND permission and it should be
+ * granted by user.
+ * Full path of command or script must be given in "RUN_COMMAND_PATH" extra.
+ * The "RUN_COMMAND_ARGUMENTS", "RUN_COMMAND_WORKDIR" and "RUN_COMMAND_BACKGROUND" extras are 
+ * optional. The background mode defaults to false.
+ *
+ * Sample code to run command "top" with java:
+ *   Intent intent = new Intent();
+ *   intent.setClassName("com.termux", "com.termux.app.RunCommandService");
+ *   intent.setAction("com.termux.RUN_COMMAND");
+ *   intent.putExtra("com.termux.RUN_COMMAND_PATH", "/data/data/com.termux/files/usr/bin/top");
+ *   intent.putExtra("com.termux.RUN_COMMAND_ARGUMENTS", new String[]{"-n", "5"});
+ *   intent.putExtra("com.termux.RUN_COMMAND_WORKDIR", "/data/data/com.termux/files/home");
+ *   intent.putExtra("com.termux.RUN_COMMAND_BACKGROUND", false);
+ *   startService(intent);
+ *
+ * Sample code to run command "top" with "am startservice" command:
+ * am startservice --user 0 -n com.termux/com.termux.app.RunCommandService 
+ * -a com.termux.RUN_COMMAND 
+ * --es com.termux.RUN_COMMAND_PATH '/data/data/com.termux/files/usr/bin/top' 
+ * --esa com.termux.RUN_COMMAND_ARGUMENTS '-n,5' 
+ * --es com.termux.RUN_COMMAND_WORKDIR '/data/data/com.termux/files/home'
+ * --ez com.termux.RUN_COMMAND_BACKGROUND 'false'
+ */
+public class RunCommandService extends Service {
+
+    public static final String RUN_COMMAND_ACTION = "com.termux.RUN_COMMAND";
+    public static final String RUN_COMMAND_PATH = "com.termux.RUN_COMMAND_PATH";
+    public static final String RUN_COMMAND_ARGUMENTS = "com.termux.RUN_COMMAND_ARGUMENTS";
+    public static final String RUN_COMMAND_WORKDIR = "com.termux.RUN_COMMAND_WORKDIR";
+    public static final String RUN_COMMAND_BACKGROUND = "com.termux.RUN_COMMAND_BACKGROUND";
+
+    class LocalBinder extends Binder {
+        public final RunCommandService service = RunCommandService.this;
+    }
+
+    private final IBinder mBinder = new RunCommandService.LocalBinder();
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return mBinder;
+    }
+
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (allowExternalApps() && RUN_COMMAND_ACTION.equals(intent.getAction())) {
+            Uri programUri = new Uri.Builder().scheme("com.termux.file").path(intent.getStringExtra(RUN_COMMAND_PATH)).build();
+
+            Intent execIntent = new Intent(TermuxService.ACTION_EXECUTE, programUri);
+            execIntent.setClass(this, TermuxService.class);
+            execIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, intent.getStringArrayExtra(RUN_COMMAND_ARGUMENTS));
+            execIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, intent.getStringExtra(RUN_COMMAND_WORKDIR));
+            execIntent.putExtra(TermuxService.EXTRA_EXECUTE_IN_BACKGROUND, intent.getBooleanExtra(RUN_COMMAND_BACKGROUND, false));
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                this.startForegroundService(execIntent);
+            } else {
+                this.startService(execIntent);
+            }
+        }
+
+        return Service.START_NOT_STICKY;
+    }
+
+    private boolean allowExternalApps() {
+        File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
+        if (!propsFile.exists())
+            propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
+
+        Properties props = new Properties();
+        try {
+            if (propsFile.isFile() && propsFile.canRead()) {
+                try (FileInputStream in = new FileInputStream(propsFile)) {
+                    props.load(new InputStreamReader(in, StandardCharsets.UTF_8));
+                }
+            }
+        } catch (Exception e) {
+            Log.e("termux", "Error loading props", e);
+        }
+
+        return props.getProperty("allow-external-apps", "false").equals("true");
+    }
+}

app/src/main/java/com/termux/app/TermuxActivity.java

@@ -11,8 +11,6 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.ComponentName;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnShowListener;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.ServiceConnection;
@@ -26,12 +24,6 @@ import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
-import android.os.Vibrator;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.view.PagerAdapter;
-import android.support.v4.view.ViewPager;
-import android.support.v4.widget.DrawerLayout;
 import android.text.SpannableString;
 import android.text.Spanned;
 import android.text.TextUtils;
@@ -40,19 +32,13 @@ import android.util.Log;
 import android.view.ContextMenu;
 import android.view.ContextMenu.ContextMenuInfo;
 import android.view.Gravity;
-import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
-import android.view.View.OnClickListener;
-import android.view.View.OnLongClickListener;
 import android.view.ViewGroup;
 import android.view.WindowManager;
 import android.view.inputmethod.InputMethodManager;
-import android.widget.AdapterView;
-import android.widget.AdapterView.OnItemClickListener;
-import android.widget.AdapterView.OnItemLongClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
@@ -78,6 +64,12 @@ import java.util.Properties;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.drawerlayout.widget.DrawerLayout;
+import androidx.viewpager.widget.PagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
 /**
  * A terminal emulator activity.
  * <p/>
@@ -90,6 +82,8 @@ import java.util.regex.Pattern;
  */
 public final class TermuxActivity extends Activity implements ServiceConnection {
 
+    public static final String TERMUX_FAILSAFE_SESSION_ACTION = "com.termux.app.failsafe_session";
+
     private static final int CONTEXTMENU_SELECT_URL_ID = 0;
     private static final int CONTEXTMENU_SHARE_TRANSCRIPT_ID = 1;
     private static final int CONTEXTMENU_PASTE_ID = 3;
@@ -97,6 +91,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     private static final int CONTEXTMENU_RESET_TERMINAL_ID = 5;
     private static final int CONTEXTMENU_STYLING_ID = 6;
     private static final int CONTEXTMENU_HELP_ID = 8;
+    private static final int CONTEXTMENU_TOGGLE_KEEP_SCREEN_ON = 9;
 
     private static final int MAX_SESSIONS = 8;
 
@@ -132,6 +127,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
      */
     boolean mIsVisible;
 
+    boolean mIsUsingBlackUI;
+
     final SoundPool mBellSoundPool = new SoundPool.Builder().setMaxStreams(1).setAudioAttributes(
         new AudioAttributes.Builder().setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
             .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION).build()).build();
@@ -149,6 +146,10 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 }
                 checkForFontAndColors();
                 mSettings.reloadFromProperties(TermuxActivity.this);
+
+                if (mExtraKeysView != null) {
+                    mExtraKeysView.reload(mSettings.mExtraKeys);
+                }
             }
         }
     };
@@ -187,36 +188,49 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     }
 
     /** For processes to access shared internal storage (/sdcard) we need this permission. */
-    @TargetApi(Build.VERSION_CODES.M)
     public boolean ensureStoragePermissionGranted() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
-                return true;
-            } else {
-                requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUESTCODE_PERMISSION_STORAGE);
-                return false;
-            }
-        } else {
-            // Always granted before Android 6.0.
+        if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
             return true;
+        } else {
+            requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUESTCODE_PERMISSION_STORAGE);
+            return false;
         }
     }
 
     @Override
     public void onCreate(Bundle bundle) {
+        mSettings = new TermuxPreferences(this);
+        mIsUsingBlackUI = mSettings.isUsingBlackUI();
+        if (mIsUsingBlackUI) {
+            this.setTheme(R.style.Theme_Termux_Black);
+        } else {
+            this.setTheme(R.style.Theme_Termux);
+        }
+
         super.onCreate(bundle);
 
-        mSettings = new TermuxPreferences(this);
-
         setContentView(R.layout.drawer_layout);
+
+        if (mIsUsingBlackUI) {
+            findViewById(R.id.left_drawer).setBackgroundColor(
+                getResources().getColor(android.R.color.background_dark)
+            );
+        }
+
         mTerminalView = findViewById(R.id.terminal_view);
         mTerminalView.setOnKeyListener(new TermuxViewClient(this));
 
         mTerminalView.setTextSize(mSettings.getFontSize());
+        mTerminalView.setKeepScreenOn(mSettings.isScreenAlwaysOn());
         mTerminalView.requestFocus();
 
         final ViewPager viewPager = findViewById(R.id.viewpager);
-        if (mSettings.isShowExtraKeys()) viewPager.setVisibility(View.VISIBLE);
+        if (mSettings.mShowExtraKeys) viewPager.setVisibility(View.VISIBLE);
+
+
+        ViewGroup.LayoutParams layoutParams = viewPager.getLayoutParams();
+        layoutParams.height = layoutParams.height * (mSettings.mExtraKeys == null ? 0 : mSettings.mExtraKeys.getMatrix().length);
+        viewPager.setLayoutParams(layoutParams);
 
         viewPager.setAdapter(new PagerAdapter() {
             @Override
@@ -236,25 +250,23 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 View layout;
                 if (position == 0) {
                     layout = mExtraKeysView = (ExtraKeysView) inflater.inflate(R.layout.extra_keys_main, collection, false);
+                    mExtraKeysView.reload(mSettings.mExtraKeys);
                 } else {
                     layout = inflater.inflate(R.layout.extra_keys_right, collection, false);
                     final EditText editText = layout.findViewById(R.id.text_input);
-                    editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
-                        @Override
-                        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
-                            TerminalSession session = getCurrentTermSession();
-                            if (session != null) {
-                                if (session.isRunning()) {
-                                    String textToSend = editText.getText().toString();
-                                    if (textToSend.length() == 0) textToSend = "\n";
-                                    session.write(textToSend);
-                                } else {
-                                    removeFinishedSession(session);
-                                }
-                                editText.setText("");
+                    editText.setOnEditorActionListener((v, actionId, event) -> {
+                        TerminalSession session = getCurrentTermSession();
+                        if (session != null) {
+                            if (session.isRunning()) {
+                                String textToSend = editText.getText().toString();
+                                if (textToSend.length() == 0) textToSend = "\r";
+                                session.write(textToSend);
+                            } else {
+                                removeFinishedSession(session);
                             }
-                            return true;
+                            editText.setText("");
                         }
+                        return true;
                     });
                 }
                 collection.addView(layout);
@@ -280,47 +292,23 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         });
 
         View newSessionButton = findViewById(R.id.new_session_button);
-        newSessionButton.setOnClickListener(new OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                addNewSession(false, null);
-            }
-        });
-        newSessionButton.setOnLongClickListener(new OnLongClickListener() {
-            @Override
-            public boolean onLongClick(View v) {
-                DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, null, R.string.session_new_named_positive_button,
-                    new DialogUtils.TextSetListener() {
-                        @Override
-                        public void onTextSet(String text) {
-                            addNewSession(false, text);
-                        }
-                    }, R.string.new_session_failsafe, new DialogUtils.TextSetListener() {
-                        @Override
-                        public void onTextSet(String text) {
-                            addNewSession(true, text);
-                        }
-                    }
-                    , -1, null, null);
-                return true;
-            }
+        newSessionButton.setOnClickListener(v -> addNewSession(false, null));
+        newSessionButton.setOnLongClickListener(v -> {
+            DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, null, R.string.session_new_named_positive_button,
+                text -> addNewSession(false, text), R.string.new_session_failsafe, text -> addNewSession(true, text)
+                , -1, null, null);
+            return true;
         });
 
-        findViewById(R.id.toggle_keyboard_button).setOnClickListener(new OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-                imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
-                getDrawer().closeDrawers();
-            }
+        findViewById(R.id.toggle_keyboard_button).setOnClickListener(v -> {
+            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
+            getDrawer().closeDrawers();
         });
 
-        findViewById(R.id.toggle_keyboard_button).setOnLongClickListener(new OnLongClickListener() {
-            @Override
-            public boolean onLongClick(View v) {
-                toggleShowExtraKeys();
-                return true;
-            }
+        findViewById(R.id.toggle_keyboard_button).setOnLongClickListener(v -> {
+            toggleShowExtraKeys();
+            return true;
         });
 
         registerForContextMenu(mTerminalView);
@@ -388,6 +376,21 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                     if (indexOfSession >= 0)
                         showToast(toToastTitle(finishedSession) + " - exited", true);
                 }
+
+                if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
+                    // On Android TV devices we need to use older behaviour because we may
+                    // not be able to have multiple launcher icons.
+                    if (mTermService.getSessions().size() > 1) {
+                        removeFinishedSession(finishedSession);
+                    }
+                } else {
+                    // Once we have a separate launcher icon for the failsafe session, it
+                    // should be safe to auto-close session on exit code '0' or '130'.
+                    if (finishedSession.getExitStatus() == 0 || finishedSession.getExitStatus() == 130) {
+                        removeFinishedSession(finishedSession);
+                    }
+                }
+
                 mListViewAdapter.notifyDataSetChanged();
             }
 
@@ -407,7 +410,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                         mBellSoundPool.play(mBellSoundId, 1.f, 1.f, 1, 0, 1.f);
                         break;
                     case TermuxPreferences.BELL_VIBRATE:
-                        ((Vibrator) getSystemService(VIBRATOR_SERVICE)).vibrate(50);
+                        BellUtil.getInstance(TermuxActivity.this).doBell();
                         break;
                     case TermuxPreferences.BELL_IGNORE:
                         // Ignore the bell character.
@@ -440,7 +443,11 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 boolean sessionRunning = sessionAtRow.isRunning();
 
                 TextView firstLineView = row.findViewById(R.id.row_line);
-
+                if (mIsUsingBlackUI) {
+                    firstLineView.setBackground(
+                        getResources().getDrawable(R.drawable.selected_session_background_black)
+                    );
+                }
                 String name = sessionAtRow.mSessionName;
                 String sessionTitle = sessionAtRow.getTitle();
 
@@ -460,40 +467,37 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 } else {
                     firstLineView.setPaintFlags(firstLineView.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
                 }
-                int color = sessionRunning || sessionAtRow.getExitStatus() == 0 ? Color.BLACK : Color.RED;
+                int defaultColor = mIsUsingBlackUI ? Color.WHITE : Color.BLACK;
+                int color = sessionRunning || sessionAtRow.getExitStatus() == 0 ? defaultColor : Color.RED;
                 firstLineView.setTextColor(color);
                 return row;
             }
         };
         listView.setAdapter(mListViewAdapter);
-        listView.setOnItemClickListener(new OnItemClickListener() {
-            @Override
-            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-                TerminalSession clickedSession = mListViewAdapter.getItem(position);
-                switchToSession(clickedSession);
-                getDrawer().closeDrawers();
-            }
+        listView.setOnItemClickListener((parent, view, position, id) -> {
+            TerminalSession clickedSession = mListViewAdapter.getItem(position);
+            switchToSession(clickedSession);
+            getDrawer().closeDrawers();
         });
-        listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
-            @Override
-            public boolean onItemLongClick(AdapterView<?> parent, View view, final int position, long id) {
-                final TerminalSession selectedSession = mListViewAdapter.getItem(position);
-                renameSession(selectedSession);
-                return true;
-            }
+        listView.setOnItemLongClickListener((parent, view, position, id) -> {
+            final TerminalSession selectedSession = mListViewAdapter.getItem(position);
+            renameSession(selectedSession);
+            return true;
         });
 
         if (mTermService.getSessions().isEmpty()) {
             if (mIsVisible) {
-                TermuxInstaller.setupIfNeeded(TermuxActivity.this, new Runnable() {
-                    @Override
-                    public void run() {
-                        if (mTermService == null) return; // Activity might have been destroyed.
-                        try {
-                            addNewSession(false, null);
-                        } catch (WindowManager.BadTokenException e) {
-                            // Activity finished - ignore.
+                TermuxInstaller.setupIfNeeded(TermuxActivity.this, () -> {
+                    if (mTermService == null) return; // Activity might have been destroyed.
+                    try {
+                        Bundle bundle = getIntent().getExtras();
+                        boolean launchFailsafe = false;
+                        if (bundle != null) {
+                            launchFailsafe = bundle.getBoolean(TERMUX_FAILSAFE_SESSION_ACTION, false);
                         }
+                        addNewSession(launchFailsafe, null);
+                    } catch (WindowManager.BadTokenException e) {
+                        // Activity finished - ignore.
                     }
                 });
             } else {
@@ -504,7 +508,8 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             Intent i = getIntent();
             if (i != null && Intent.ACTION_RUN.equals(i.getAction())) {
                 // Android 7.1 app shortcut from res/xml/shortcuts.xml.
-                addNewSession(false, null);
+                boolean failSafe = i.getBooleanExtra(TERMUX_FAILSAFE_SESSION_ACTION, false);
+                addNewSession(failSafe, null);
             } else {
                 switchToSession(getStoredCurrentSessionOrLast());
             }
@@ -524,12 +529,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
     @SuppressLint("InflateParams")
     void renameSession(final TerminalSession sessionToRename) {
-        DialogUtils.textInput(this, R.string.session_rename_title, sessionToRename.mSessionName, R.string.session_rename_positive_button, new DialogUtils.TextSetListener() {
-            @Override
-            public void onTextSet(String text) {
-                sessionToRename.mSessionName = text;
-                mListViewAdapter.notifyDataSetChanged();
-            }
+        DialogUtils.textInput(this, R.string.session_rename_title, sessionToRename.mSessionName, R.string.session_rename_positive_button, text -> {
+            sessionToRename.mSessionName = text;
+            mListViewAdapter.notifyDataSetChanged();
         }, -1, null, -1, null, null);
     }
 
@@ -601,8 +603,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             new AlertDialog.Builder(this).setTitle(R.string.max_terminals_reached_title).setMessage(R.string.max_terminals_reached_message)
                 .setPositiveButton(android.R.string.ok, null).show();
         } else {
-            String executablePath = (failSafe ? "/system/bin/sh" : null);
-            TerminalSession newSession = mTermService.createTermSession(executablePath, null, null, failSafe);
+            TerminalSession currentSession = getCurrentTermSession();
+            String workingDirectory = (currentSession == null) ? null : currentSession.getCwd();
+            TerminalSession newSession = mTermService.createTermSession(null, null, workingDirectory, failSafe);
             if (sessionName != null) {
                 newSession.mSessionName = sessionName;
             }
@@ -655,6 +658,7 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         menu.add(Menu.NONE, CONTEXTMENU_RESET_TERMINAL_ID, Menu.NONE, R.string.reset_terminal);
         menu.add(Menu.NONE, CONTEXTMENU_KILL_PROCESS_ID, Menu.NONE, getResources().getString(R.string.kill_process, getCurrentTermSession().getPid())).setEnabled(currentSession.isRunning());
         menu.add(Menu.NONE, CONTEXTMENU_STYLING_ID, Menu.NONE, R.string.style_terminal);
+        menu.add(Menu.NONE, CONTEXTMENU_TOGGLE_KEEP_SCREEN_ON, Menu.NONE, R.string.toggle_keep_screen_on).setCheckable(true).setChecked(mSettings.isScreenAlwaysOn());
         menu.add(Menu.NONE, CONTEXTMENU_HELP_ID, Menu.NONE, R.string.help);
     }
 
@@ -666,65 +670,126 @@ public final class TermuxActivity extends Activity implements ServiceConnection
     }
 
     static LinkedHashSet<CharSequence> extractUrls(String text) {
-        // Pattern for recognizing a URL, based off RFC 3986
-        // http://stackoverflow.com/questions/5713558/detect-and-extract-url-from-a-string
+
+        StringBuilder regex_sb = new StringBuilder();
+
+        regex_sb.append("(");                       // Begin first matching group.
+        regex_sb.append("(?:");                     // Begin scheme group.
+        regex_sb.append("dav|");                    // The DAV proto.
+        regex_sb.append("dict|");                   // The DICT proto.
+        regex_sb.append("dns|");                    // The DNS proto.
+        regex_sb.append("file|");                   // File path.
+        regex_sb.append("finger|");                 // The Finger proto.
+        regex_sb.append("ftp(?:s?)|");              // The FTP proto.
+        regex_sb.append("git|");                    // The Git proto.
+        regex_sb.append("gopher|");                 // The Gopher proto.
+        regex_sb.append("http(?:s?)|");             // The HTTP proto.
+        regex_sb.append("imap(?:s?)|");             // The IMAP proto.
+        regex_sb.append("irc(?:[6s]?)|");           // The IRC proto.
+        regex_sb.append("ip[fn]s|");                // The IPFS proto.
+        regex_sb.append("ldap(?:s?)|");             // The LDAP proto.
+        regex_sb.append("pop3(?:s?)|");             // The POP3 proto.
+        regex_sb.append("redis(?:s?)|");            // The Redis proto.
+        regex_sb.append("rsync|");                  // The Rsync proto.
+        regex_sb.append("rtsp(?:[su]?)|");          // The RTSP proto.
+        regex_sb.append("sftp|");                   // The SFTP proto.
+        regex_sb.append("smb(?:s?)|");              // The SAMBA proto.
+        regex_sb.append("smtp(?:s?)|");             // The SMTP proto.
+        regex_sb.append("svn(?:(?:\\+ssh)?)|");     // The Subversion proto.
+        regex_sb.append("tcp|");                    // The TCP proto.
+        regex_sb.append("telnet|");                 // The Telnet proto.
+        regex_sb.append("tftp|");                   // The TFTP proto.
+        regex_sb.append("udp|");                    // The UDP proto.
+        regex_sb.append("vnc|");                    // The VNC proto.
+        regex_sb.append("ws(?:s?)");                // The Websocket proto.
+        regex_sb.append(")://");                    // End scheme group.
+        regex_sb.append(")");                       // End first matching group.
+
+
+        // Begin second matching group.
+        regex_sb.append("(");
+
+        // User name and/or password in format 'user:pass@'.
+        regex_sb.append("(?:\\S+(?::\\S*)?@)?");
+
+        // Begin host group.
+        regex_sb.append("(?:");
+
+        // IP address (from http://www.regular-expressions.info/examples.html).
+        regex_sb.append("(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|");
+
+        // Host name or domain.
+        regex_sb.append("(?:(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)(?:(?:\\.(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)*(?:\\.(?:[a-z\\u00a1-\\uffff]{2,})))?|");
+
+        // Just path. Used in case of 'file://' scheme.
+        regex_sb.append("/(?:(?:[a-z\\u00a1-\\uffff0-9]-*)*[a-z\\u00a1-\\uffff0-9]+)");
+
+        // End host group.
+        regex_sb.append(")");
+
+        // Port number.
+        regex_sb.append("(?::\\d{1,5})?");
+
+        // Resource path with optional query string.
+        regex_sb.append("(?:/[a-zA-Z0-9:@%\\-._~!$&()*+,;=?/]*)?");
+
+        // Fragment.
+        regex_sb.append("(?:#[a-zA-Z0-9:@%\\-._~!$&()*+,;=?/]*)?");
+
+        // End second matching group.
+        regex_sb.append(")");
+
         final Pattern urlPattern = Pattern.compile(
-            "(?:^|[\\W])((ht|f)tp(s?)://|www\\.)" + "(([\\w\\-]+\\.)+?([\\w\\-.~]+/?)*" + "[\\p{Alnum}.,%_=?&#\\-+()\\[\\]\\*$~@!:/{};']*)",
+            regex_sb.toString(),
             Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
+
         LinkedHashSet<CharSequence> urlSet = new LinkedHashSet<>();
         Matcher matcher = urlPattern.matcher(text);
+
         while (matcher.find()) {
             int matchStart = matcher.start(1);
             int matchEnd = matcher.end();
             String url = text.substring(matchStart, matchEnd);
             urlSet.add(url);
         }
+
         return urlSet;
     }
 
     void showUrlSelection() {
-        String text = getCurrentTermSession().getEmulator().getScreen().getTranscriptText();
+        String text = getCurrentTermSession().getEmulator().getScreen().getTranscriptTextWithFullLinesJoined();
         LinkedHashSet<CharSequence> urlSet = extractUrls(text);
         if (urlSet.isEmpty()) {
             new AlertDialog.Builder(this).setMessage(R.string.select_url_no_found).show();
             return;
         }
 
-        final CharSequence[] urls = urlSet.toArray(new CharSequence[urlSet.size()]);
+        final CharSequence[] urls = urlSet.toArray(new CharSequence[0]);
         Collections.reverse(Arrays.asList(urls)); // Latest first.
 
         // Click to copy url to clipboard:
-        final AlertDialog dialog = new AlertDialog.Builder(TermuxActivity.this).setItems(urls, new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface di, int which) {
-                String url = (String) urls[which];
-                ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
-                clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
-                Toast.makeText(TermuxActivity.this, R.string.select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
-            }
+        final AlertDialog dialog = new AlertDialog.Builder(TermuxActivity.this).setItems(urls, (di, which) -> {
+            String url = (String) urls[which];
+            ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
+            clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
+            Toast.makeText(TermuxActivity.this, R.string.select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
         }).setTitle(R.string.select_url_dialog_title).create();
 
         // Long press to open URL:
-        dialog.setOnShowListener(new OnShowListener() {
-            @Override
-            public void onShow(DialogInterface di) {
-                ListView lv = dialog.getListView(); // this is a ListView with your "buds" in it
-                lv.setOnItemLongClickListener(new OnItemLongClickListener() {
-                    @Override
-                    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
-                        dialog.dismiss();
-                        String url = (String) urls[position];
-                        Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
-                        try {
-                            startActivity(i, null);
-                        } catch (ActivityNotFoundException e) {
-                            // If no applications match, Android displays a system message.
-                            startActivity(Intent.createChooser(i, null));
-                        }
-                        return true;
-                    }
-                });
-            }
+        dialog.setOnShowListener(di -> {
+            ListView lv = dialog.getListView(); // this is a ListView with your "buds" in it
+            lv.setOnItemLongClickListener((parent, view, position, id) -> {
+                dialog.dismiss();
+                String url = (String) urls[position];
+                Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
+                try {
+                    startActivity(i, null);
+                } catch (ActivityNotFoundException e) {
+                    // If no applications match, Android displays a system message.
+                    startActivity(Intent.createChooser(i, null));
+                }
+                return true;
+            });
         });
 
         dialog.show();
@@ -742,7 +807,18 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 if (session != null) {
                     Intent intent = new Intent(Intent.ACTION_SEND);
                     intent.setType("text/plain");
-                    intent.putExtra(Intent.EXTRA_TEXT, session.getEmulator().getScreen().getTranscriptText().trim());
+                    String transcriptText = session.getEmulator().getScreen().getTranscriptTextWithoutJoinedLines().trim();
+                    // See https://github.com/termux/termux-app/issues/1166.
+                    final int MAX_LENGTH = 100_000;
+                    if (transcriptText.length() > MAX_LENGTH) {
+                        int cutOffIndex = transcriptText.length() - MAX_LENGTH;
+                        int nextNewlineIndex = transcriptText.indexOf('\n', cutOffIndex);
+                        if (nextNewlineIndex != -1 && nextNewlineIndex != transcriptText.length() - 1) {
+                            cutOffIndex = nextNewlineIndex + 1;
+                        }
+                        transcriptText = transcriptText.substring(cutOffIndex).trim();
+                    }
+                    intent.putExtra(Intent.EXTRA_TEXT, transcriptText);
                     intent.putExtra(Intent.EXTRA_SUBJECT, getString(R.string.share_transcript_title));
                     startActivity(Intent.createChooser(intent, getString(R.string.share_transcript_chooser_title)));
                 }
@@ -754,12 +830,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                 final AlertDialog.Builder b = new AlertDialog.Builder(this);
                 b.setIcon(android.R.drawable.ic_dialog_alert);
                 b.setMessage(R.string.confirm_kill_process);
-                b.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int id) {
-                        dialog.dismiss();
-                        getCurrentTermSession().finishIfRunning();
-                    }
+                b.setPositiveButton(android.R.string.yes, (dialog, id) -> {
+                    dialog.dismiss();
+                    getCurrentTermSession().finishIfRunning();
                 });
                 b.setNegativeButton(android.R.string.no, null);
                 b.show();
@@ -780,18 +853,23 @@ public final class TermuxActivity extends Activity implements ServiceConnection
                     // The startActivity() call is not documented to throw IllegalArgumentException.
                     // However, crash reporting shows that it sometimes does, so catch it here.
                     new AlertDialog.Builder(this).setMessage(R.string.styling_not_installed)
-                        .setPositiveButton(R.string.styling_install, new DialogInterface.OnClickListener() {
-                            @Override
-                            public void onClick(DialogInterface dialog, int which) {
-                                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=com.termux.styling")));
-                            }
-                        }).setNegativeButton(android.R.string.cancel, null).show();
+                        .setPositiveButton(R.string.styling_install, (dialog, which) -> startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=com.termux.styling")))).setNegativeButton(android.R.string.cancel, null).show();
                 }
                 return true;
             }
             case CONTEXTMENU_HELP_ID:
                 startActivity(new Intent(this, TermuxHelpActivity.class));
                 return true;
+            case CONTEXTMENU_TOGGLE_KEEP_SCREEN_ON: {
+                if(mTerminalView.getKeepScreenOn()) {
+                    mTerminalView.setKeepScreenOn(false);
+                    mSettings.setScreenAlwaysOn(this, false);
+                } else {
+                    mTerminalView.setKeepScreenOn(true);
+                    mSettings.setScreenAlwaysOn(this, true);
+                }
+                return true;
+            }
             default:
                 return super.onContextItemSelected(item);
         }

app/src/main/java/com/termux/app/TermuxInstaller.java

@@ -4,10 +4,6 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
-import android.content.DialogInterface.OnDismissListener;
-import android.os.Build;
 import android.os.Environment;
 import android.os.UserManager;
 import android.system.Os;
@@ -19,14 +15,12 @@ import com.termux.R;
 import com.termux.terminal.EmulatorDebug;
 
 import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
@@ -41,7 +35,7 @@ import java.util.zip.ZipInputStream;
  * <p/>
  * (3) A staging folder, $STAGING_PREFIX, is {@link #deleteFolder(File)} if left over from broken installation below.
  * <p/>
- * (4) The architecture is determined and an appropriate bootstrap zip url is determined in {@link #determineZipUrl()}.
+ * (4) The zip file is loaded from a shared library.
  * <p/>
  * (5) The zip, containing entries relative to the $PREFIX, is is downloaded and extracted by a zip input stream
  * continuously encountering zip file entries:
@@ -60,12 +54,7 @@ final class TermuxInstaller {
         boolean isPrimaryUser = um.getSerialNumberForUser(android.os.Process.myUserHandle()) == 0;
         if (!isPrimaryUser) {
             new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_not_primary_user_message)
-                .setOnDismissListener(new OnDismissListener() {
-                    @Override
-                    public void onDismiss(DialogInterface dialog) {
-                        System.exit(0);
-                    }
-                }).setPositiveButton(android.R.string.ok, null).show();
+                .setOnDismissListener(dialog -> System.exit(0)).setPositiveButton(android.R.string.ok, null).show();
             return;
         }
 
@@ -90,8 +79,8 @@ final class TermuxInstaller {
                     final byte[] buffer = new byte[8096];
                     final List<Pair<String, String>> symlinks = new ArrayList<>(50);
 
-                    final URL zipUrl = determineZipUrl();
-                    try (ZipInputStream zipInput = new ZipInputStream(zipUrl.openStream())) {
+                    final byte[] zipBytes = loadZipBytes();
+                    try (ZipInputStream zipInput = new ZipInputStream(new ByteArrayInputStream(zipBytes))) {
                         ZipEntry zipEntry;
                         while ((zipEntry = zipInput.getNextEntry()) != null) {
                             if (zipEntry.getName().equals("SYMLINKS.txt")) {
@@ -104,14 +93,17 @@ final class TermuxInstaller {
                                     String oldPath = parts[0];
                                     String newPath = STAGING_PREFIX_PATH + "/" + parts[1];
                                     symlinks.add(Pair.create(oldPath, newPath));
+
+                                    ensureDirectoryExists(new File(newPath).getParentFile());
                                 }
                             } else {
                                 String zipEntryName = zipEntry.getName();
                                 File targetFile = new File(STAGING_PREFIX_PATH, zipEntryName);
-                                if (zipEntry.isDirectory()) {
-                                    if (!targetFile.mkdirs())
-                                        throw new RuntimeException("Failed to create directory: " + targetFile.getAbsolutePath());
-                                } else {
+                                boolean isDirectory = zipEntry.isDirectory();
+
+                                ensureDirectoryExists(isDirectory ? targetFile : targetFile.getParentFile());
+
+                                if (!isDirectory) {
                                     try (FileOutputStream outStream = new FileOutputStream(targetFile)) {
                                         int readBytes;
                                         while ((readBytes = zipInput.read(buffer)) != -1)
@@ -136,46 +128,29 @@ final class TermuxInstaller {
                         throw new RuntimeException("Unable to rename staging folder");
                     }
 
-                    activity.runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            whenDone.run();
-                        }
-                    });
+                    activity.runOnUiThread(whenDone);
                 } catch (final Exception e) {
                     Log.e(EmulatorDebug.LOG_TAG, "Bootstrap error", e);
-                    activity.runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            try {
-                                new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
-                                    .setNegativeButton(R.string.bootstrap_error_abort, new OnClickListener() {
-                                        @Override
-                                        public void onClick(DialogInterface dialog, int which) {
-                                            dialog.dismiss();
-                                            activity.finish();
-                                        }
-                                    }).setPositiveButton(R.string.bootstrap_error_try_again, new OnClickListener() {
-                                    @Override
-                                    public void onClick(DialogInterface dialog, int which) {
-                                        dialog.dismiss();
-                                        TermuxInstaller.setupIfNeeded(activity, whenDone);
-                                    }
+                    activity.runOnUiThread(() -> {
+                        try {
+                            new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
+                                .setNegativeButton(R.string.bootstrap_error_abort, (dialog, which) -> {
+                                    dialog.dismiss();
+                                    activity.finish();
+                                }).setPositiveButton(R.string.bootstrap_error_try_again, (dialog, which) -> {
+                                    dialog.dismiss();
+                                    TermuxInstaller.setupIfNeeded(activity, whenDone);
                                 }).show();
-                            } catch (WindowManager.BadTokenException e) {
-                                // Activity already dismissed - ignore.
-                            }
+                        } catch (WindowManager.BadTokenException e1) {
+                            // Activity already dismissed - ignore.
                         }
                     });
                 } finally {
-                    activity.runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            try {
-                                progress.dismiss();
-                            } catch (RuntimeException e) {
-                                // Activity already dismissed - ignore.
-                            }
+                    activity.runOnUiThread(() -> {
+                        try {
+                            progress.dismiss();
+                        } catch (RuntimeException e) {
+                            // Activity already dismissed - ignore.
                         }
                     });
                 }
@@ -183,50 +158,38 @@ final class TermuxInstaller {
         }.start();
     }
 
-    /** Get bootstrap zip url for this systems cpu architecture. */
-    static URL determineZipUrl() throws MalformedURLException {
-        String archName = determineTermuxArchName();
-        return new URL("https://termux.net/bootstrap/bootstrap-" + archName + ".zip");
-    }
-
-    private static String determineTermuxArchName() {
-        // Note that we cannot use System.getProperty("os.arch") since that may give e.g. "aarch64"
-        // while a 64-bit runtime may not be installed (like on the Samsung Galaxy S5 Neo).
-        // Instead we search through the supported abi:s on the device, see:
-        // http://developer.android.com/ndk/guides/abis.html
-        // Note that we search for abi:s in preferred order (the ordering of the
-        // Build.SUPPORTED_ABIS list) to avoid e.g. installing arm on an x86 system where arm
-        // emulation is available.
-        for (String androidArch : Build.SUPPORTED_ABIS) {
-            switch (androidArch) {
-                case "arm64-v8a": return "aarch64";
-                case "armeabi-v7a": return "arm";
-                case "x86_64": return "x86_64";
-                case "x86": return "i686";
-            }
+    private static void ensureDirectoryExists(File directory) {
+        if (!directory.isDirectory() && !directory.mkdirs()) {
+            throw new RuntimeException("Unable to create directory: " + directory.getAbsolutePath());
         }
-        throw new RuntimeException("Unable to determine arch from Build.SUPPORTED_ABIS =  " +
-            Arrays.toString(Build.SUPPORTED_ABIS));
     }
 
-    /** Delete a folder and all its content or throw. */
+    public static byte[] loadZipBytes() {
+        // Only load the shared library when necessary to save memory usage.
+        System.loadLibrary("termux-bootstrap");
+        return getZip();
+    }
+
+    public static native byte[] getZip();
+
+    /** Delete a folder and all its content or throw. Don't follow symlinks. */
     static void deleteFolder(File fileOrDirectory) throws IOException {
-        File[] children = fileOrDirectory.listFiles();
-        if (children != null) {
-            for (File child : children) {
-                if (child.getCanonicalFile().equals(child.getAbsoluteFile())) {
+        if (fileOrDirectory.getCanonicalPath().equals(fileOrDirectory.getAbsolutePath()) && fileOrDirectory.isDirectory()) {
+            File[] children = fileOrDirectory.listFiles();
+
+            if (children != null) {
+                for (File child : children) {
                     deleteFolder(child);
-                } else {
-                    child.delete();
                 }
             }
         }
+
         if (!fileOrDirectory.delete()) {
             throw new RuntimeException("Unable to delete " + (fileOrDirectory.isDirectory() ? "directory " : "file ") + fileOrDirectory.getAbsolutePath());
         }
     }
 
-    public static void setupStorageSymlinks(final Context context) {
+    static void setupStorageSymlinks(final Context context) {
         final String LOG_TAG = "termux-storage";
         new Thread() {
             public void run() {

app/src/main/java/com/termux/app/TermuxOpenReceiver.java

@@ -11,7 +11,6 @@ import android.net.Uri;
 import android.os.Environment;
 import android.os.ParcelFileDescriptor;
 import android.provider.MediaStore;
-import android.support.annotation.NonNull;
 import android.util.Log;
 import android.webkit.MimeTypeMap;
 
@@ -21,6 +20,8 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 
+import androidx.annotation.NonNull;
+
 public class TermuxOpenReceiver extends BroadcastReceiver {
 
     @Override
@@ -77,7 +78,7 @@ public class TermuxOpenReceiver extends BroadcastReceiver {
         if (contentTypeExtra == null) {
             String fileName = fileToShare.getName();
             int lastDotIndex = fileName.lastIndexOf('.');
-            String fileExtension = fileName.substring(lastDotIndex + 1, fileName.length());
+            String fileExtension = fileName.substring(lastDotIndex + 1);
             MimeTypeMap mimeTypes = MimeTypeMap.getSingleton();
             // Lower casing makes it work with e.g. "JPG":
             contentTypeToUse = mimeTypes.getMimeTypeFromExtension(fileExtension.toLowerCase());
@@ -86,7 +87,7 @@ public class TermuxOpenReceiver extends BroadcastReceiver {
             contentTypeToUse = contentTypeExtra;
         }
 
-        Uri uriToShare = Uri.withAppendedPath(Uri.parse("content://com.termux.files/"), filePath);
+        Uri uriToShare = Uri.parse("content://com.termux.files" + fileToShare.getAbsolutePath());
 
         if (Intent.ACTION_SEND.equals(intentAction)) {
             sendIntent.putExtra(Intent.EXTRA_STREAM, uriToShare);

app/src/main/java/com/termux/app/TermuxPreferences.java

@@ -2,29 +2,55 @@ package com.termux.app;
 
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.res.Configuration;
 import android.preference.PreferenceManager;
-import android.support.annotation.IntDef;
 import android.util.Log;
 import android.util.TypedValue;
 import android.widget.Toast;
-
 import com.termux.terminal.TerminalSession;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
 
 import java.io.File;
 import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
 import java.util.Properties;
 
+import androidx.annotation.IntDef;
+
 final class TermuxPreferences {
 
     @IntDef({BELL_VIBRATE, BELL_BEEP, BELL_IGNORE})
     @Retention(RetentionPolicy.SOURCE)
-    public @interface AsciiBellBehaviour {
+    @interface AsciiBellBehaviour {
     }
 
+    final static class KeyboardShortcut {
+
+        KeyboardShortcut(int codePoint, int shortcutAction) {
+            this.codePoint = codePoint;
+            this.shortcutAction = shortcutAction;
+        }
+
+        final int codePoint;
+        final int shortcutAction;
+    }
+
+    static final int SHORTCUT_ACTION_CREATE_SESSION = 1;
+    static final int SHORTCUT_ACTION_NEXT_SESSION = 2;
+    static final int SHORTCUT_ACTION_PREVIOUS_SESSION = 3;
+    static final int SHORTCUT_ACTION_RENAME_SESSION = 4;
+
     static final int BELL_VIBRATE = 1;
     static final int BELL_BEEP = 2;
     static final int BELL_IGNORE = 3;
@@ -35,15 +61,30 @@ final class TermuxPreferences {
     private static final String SHOW_EXTRA_KEYS_KEY = "show_extra_keys";
     private static final String FONTSIZE_KEY = "fontsize";
     private static final String CURRENT_SESSION_KEY = "current_session";
+    private static final String SCREEN_ALWAYS_ON_KEY = "screen_always_on";
 
+    private boolean mUseDarkUI;
+    private boolean mScreenAlwaysOn;
     private int mFontSize;
 
     @AsciiBellBehaviour
     int mBellBehaviour = BELL_VIBRATE;
 
     boolean mBackIsEscape;
+    boolean mDisableVolumeVirtualKeys;
     boolean mShowExtraKeys;
 
+    ExtraKeysInfos mExtraKeys;
+
+    final List<KeyboardShortcut> shortcuts = new ArrayList<>();
+
+    /**
+     * If value is not in the range [min, max], set it to either min or max.
+     */
+    static int clamp(int value, int min, int max) {
+        return Math.min(Math.max(value, min), max);
+    }
+
     TermuxPreferences(Context context) {
         reloadFromProperties(context);
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
@@ -54,7 +95,8 @@ final class TermuxPreferences {
         // to prevent invisible text due to zoom be mistake:
         MIN_FONTSIZE = (int) (4f * dipInPixels);
 
-        mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, false);
+        mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, true);
+        mScreenAlwaysOn = prefs.getBoolean(SCREEN_ALWAYS_ON_KEY, false);
 
         // http://www.google.com/design/spec/style/typography.html#typography-line-height
         int defaultFontSize = Math.round(12 * dipInPixels);
@@ -66,11 +108,7 @@ final class TermuxPreferences {
         } catch (NumberFormatException | ClassCastException e) {
             mFontSize = defaultFontSize;
         }
-        mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
-    }
-
-    boolean isShowExtraKeys() {
-        return mShowExtraKeys;
+        mFontSize = clamp(mFontSize, MIN_FONTSIZE, MAX_FONTSIZE); 
     }
 
     boolean toggleShowExtraKeys(Context context) {
@@ -91,6 +129,19 @@ final class TermuxPreferences {
         prefs.edit().putString(FONTSIZE_KEY, Integer.toString(mFontSize)).apply();
     }
 
+    boolean isScreenAlwaysOn() {
+        return mScreenAlwaysOn;
+    }
+
+    boolean isUsingBlackUI() {
+        return mUseDarkUI;
+    }
+
+    void setScreenAlwaysOn(Context context, boolean newValue) {
+        mScreenAlwaysOn = newValue;
+        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SCREEN_ALWAYS_ON_KEY, newValue).apply();
+    }
+
     static void storeCurrentSession(Context context, TerminalSession session) {
         PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).apply();
     }
@@ -104,61 +155,75 @@ final class TermuxPreferences {
         return null;
     }
 
-    public void reloadFromProperties(Context context) {
-        try {
-            File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
-            if (!propsFile.exists())
-                propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
+    void reloadFromProperties(Context context) {
+        File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
+        if (!propsFile.exists())
+            propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
 
-            Properties props = new Properties();
+        Properties props = new Properties();
+        try {
             if (propsFile.isFile() && propsFile.canRead()) {
                 try (FileInputStream in = new FileInputStream(propsFile)) {
-                    props.load(in);
+                    props.load(new InputStreamReader(in, StandardCharsets.UTF_8));
                 }
             }
-
-            switch (props.getProperty("bell-character", "vibrate")) {
-                case "beep":
-                    mBellBehaviour = BELL_BEEP;
-                    break;
-                case "ignore":
-                    mBellBehaviour = BELL_IGNORE;
-                    break;
-                default: // "vibrate".
-                    mBellBehaviour = BELL_VIBRATE;
-                    break;
-            }
-
-            mBackIsEscape = "escape".equals(props.getProperty("back-key", "back"));
-
-            shortcuts.clear();
-            parseAction("shortcut.create-session", SHORTCUT_ACTION_CREATE_SESSION, props);
-            parseAction("shortcut.next-session", SHORTCUT_ACTION_NEXT_SESSION, props);
-            parseAction("shortcut.previous-session", SHORTCUT_ACTION_PREVIOUS_SESSION, props);
-            parseAction("shortcut.rename-session", SHORTCUT_ACTION_RENAME_SESSION, props);
         } catch (Exception e) {
-            Toast.makeText(context, "Error loading properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
+            Toast.makeText(context, "Could not open properties file termux.properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
             Log.e("termux", "Error loading props", e);
         }
-    }
 
-    public static final int SHORTCUT_ACTION_CREATE_SESSION = 1;
-    public static final int SHORTCUT_ACTION_NEXT_SESSION = 2;
-    public static final int SHORTCUT_ACTION_PREVIOUS_SESSION = 3;
-    public static final int SHORTCUT_ACTION_RENAME_SESSION = 4;
-
-    public final static class KeyboardShortcut {
-
-        public KeyboardShortcut(int codePoint, int shortcutAction) {
-            this.codePoint = codePoint;
-            this.shortcutAction = shortcutAction;
+        switch (props.getProperty("bell-character", "vibrate")) {
+            case "beep":
+                mBellBehaviour = BELL_BEEP;
+                break;
+            case "ignore":
+                mBellBehaviour = BELL_IGNORE;
+                break;
+            default: // "vibrate".
+                mBellBehaviour = BELL_VIBRATE;
+                break;
         }
 
-        final int codePoint;
-        final int shortcutAction;
-    }
+        switch (props.getProperty("use-black-ui", "").toLowerCase()) {
+            case "true":
+                mUseDarkUI = true;
+                break;
+            case "false":
+                mUseDarkUI = false;
+                break;
+            default:
+                int nightMode = context.getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
+                mUseDarkUI = nightMode == Configuration.UI_MODE_NIGHT_YES;
+        }
 
-    final List<KeyboardShortcut> shortcuts = new ArrayList<>();
+        String defaultExtraKeys = "[[ESC, TAB, CTRL, ALT, {key: '-', popup: '|'}, DOWN, UP]]";
+
+        try {
+            String extrakeyProp = props.getProperty("extra-keys", defaultExtraKeys);
+            String extraKeysStyle = props.getProperty("extra-keys-style", "default");
+            mExtraKeys = new ExtraKeysInfos(extrakeyProp, extraKeysStyle);
+        } catch (JSONException e) {
+            Toast.makeText(context, "Could not load the extra-keys property from the config: " + e.toString(), Toast.LENGTH_LONG).show();
+            Log.e("termux", "Error loading props", e);
+
+            try {
+                mExtraKeys = new ExtraKeysInfos(defaultExtraKeys, "default");
+            } catch (JSONException e2) {
+                e2.printStackTrace();
+                Toast.makeText(context, "Can't create default extra keys", Toast.LENGTH_LONG).show();
+                mExtraKeys = null;
+            }
+        }
+
+        mBackIsEscape = "escape".equals(props.getProperty("back-key", "back"));
+        mDisableVolumeVirtualKeys = "volume".equals(props.getProperty("volume-keys", "virtual"));
+
+        shortcuts.clear();
+        parseAction("shortcut.create-session", SHORTCUT_ACTION_CREATE_SESSION, props);
+        parseAction("shortcut.next-session", SHORTCUT_ACTION_NEXT_SESSION, props);
+        parseAction("shortcut.previous-session", SHORTCUT_ACTION_PREVIOUS_SESSION, props);
+        parseAction("shortcut.rename-session", SHORTCUT_ACTION_RENAME_SESSION, props);
+    }
 
     private void parseAction(String name, int shortcutAction, Properties props) {
         String value = props.getProperty(name);

app/src/main/java/com/termux/app/TermuxService.java

@@ -6,6 +6,7 @@ import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
+import android.content.ActivityNotFoundException;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
@@ -16,6 +17,7 @@ import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.PowerManager;
+import android.provider.Settings;
 import android.util.Log;
 import android.widget.ArrayAdapter;
 
@@ -61,7 +63,7 @@ public final class TermuxService extends Service implements SessionChangedCallba
     public static final String EXTRA_ARGUMENTS = "com.termux.execute.arguments";
 
     public static final String EXTRA_CURRENT_WORKING_DIRECTORY = "com.termux.execute.cwd";
-    private static final String EXTRA_EXECUTE_IN_BACKGROUND = "com.termux.execute.background";
+    public static final String EXTRA_EXECUTE_IN_BACKGROUND = "com.termux.execute.background";
 
     /** This service is only bound from inside the same process and never uses IPC. */
     class LocalBinder extends Binder {
@@ -104,7 +106,7 @@ public final class TermuxService extends Service implements SessionChangedCallba
         } else if (ACTION_LOCK_WAKE.equals(action)) {
             if (mWakeLock == null) {
                 PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
-                mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, EmulatorDebug.LOG_TAG);
+                mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, EmulatorDebug.LOG_TAG + ":service-wakelock");
                 mWakeLock.acquire();
 
                 // http://tools.android.com/tech-docs/lint-in-studio-2-3#TOC-WifiManager-Leak
@@ -112,6 +114,20 @@ public final class TermuxService extends Service implements SessionChangedCallba
                 mWifiLock = wm.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF, EmulatorDebug.LOG_TAG);
                 mWifiLock.acquire();
 
+                String packageName = getPackageName();
+                if (!pm.isIgnoringBatteryOptimizations(packageName)) {
+                    Intent whitelist = new Intent();
+                    whitelist.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
+                    whitelist.setData(Uri.parse("package:" + packageName));
+                    whitelist.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+                    try {
+                        startActivity(whitelist);
+                    } catch (ActivityNotFoundException e) {
+                        Log.e(EmulatorDebug.LOG_TAG, "Failed to call ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS", e);
+                    }
+                }
+
                 updateNotification();
             }
         } else if (ACTION_UNLOCK_WAKE.equals(action)) {
@@ -132,11 +148,12 @@ public final class TermuxService extends Service implements SessionChangedCallba
             String cwd = intent.getStringExtra(EXTRA_CURRENT_WORKING_DIRECTORY);
 
             if (intent.getBooleanExtra(EXTRA_EXECUTE_IN_BACKGROUND, false)) {
-                BackgroundJob task = new BackgroundJob(cwd, executablePath, arguments, this);
+                BackgroundJob task = new BackgroundJob(cwd, executablePath, arguments, this, intent.getParcelableExtra("pendingIntent"));
                 mBackgroundTasks.add(task);
                 updateNotification();
             } else {
-                TerminalSession newSession = createTermSession(executablePath, arguments, cwd, false);
+                boolean failsafe = intent.getBooleanExtra(TermuxActivity.TERMUX_FAILSAFE_SESSION_ACTION, false);
+                TerminalSession newSession = createTermSession(executablePath, arguments, cwd, failsafe);
 
                 // Transform executable path to session name, e.g. "/bin/do-something.sh" => "do something.sh".
                 if (executablePath != null) {
@@ -214,7 +231,7 @@ public final class TermuxService extends Service implements SessionChangedCallba
         builder.setShowWhen(false);
 
         // Background color for small notification icon:
-        builder.setColor(0xFF000000);
+        builder.setColor(0xFF607D8B);
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             builder.setChannelId(NOTIFICATION_CHANNEL_ID);
@@ -237,6 +254,18 @@ public final class TermuxService extends Service implements SessionChangedCallba
 
     @Override
     public void onDestroy() {
+        File termuxTmpDir = new File(TermuxService.PREFIX_PATH + "/tmp");
+
+        if (termuxTmpDir.exists()) {
+            try {
+                TermuxInstaller.deleteFolder(termuxTmpDir.getCanonicalFile());
+            } catch (Exception e) {
+                Log.e(EmulatorDebug.LOG_TAG, "Error while removing file at " + termuxTmpDir.getAbsolutePath(), e);
+            }
+
+            termuxTmpDir.mkdirs();
+        }
+
         if (mWakeLock != null) mWakeLock.release();
         if (mWifiLock != null) mWifiLock.release();
 
@@ -259,11 +288,13 @@ public final class TermuxService extends Service implements SessionChangedCallba
         boolean isLoginShell = false;
 
         if (executablePath == null) {
-            for (String shellBinary : new String[]{"login", "bash", "zsh"}) {
-                File shellFile = new File(PREFIX_PATH + "/bin/" + shellBinary);
-                if (shellFile.canExecute()) {
-                    executablePath = shellFile.getAbsolutePath();
-                    break;
+            if (!failSafe) {
+                for (String shellBinary : new String[]{"login", "bash", "zsh"}) {
+                    File shellFile = new File(PREFIX_PATH + "/bin/" + shellBinary);
+                    if (shellFile.canExecute()) {
+                        executablePath = shellFile.getAbsolutePath();
+                        break;
+                    }
                 }
             }
 
@@ -287,6 +318,12 @@ public final class TermuxService extends Service implements SessionChangedCallba
         TerminalSession session = new TerminalSession(executablePath, cwd, args, env, this);
         mTerminalSessions.add(session);
         updateNotification();
+
+        // Make sure that terminal styling is always applied.
+        Intent stylingIntent = new Intent("com.termux.app.reload_style");
+        stylingIntent.putExtra("com.termux.app.reload_style", "styling");
+        sendBroadcast(stylingIntent);
+
         return session;
     }
 
@@ -335,12 +372,9 @@ public final class TermuxService extends Service implements SessionChangedCallba
     }
 
     public void onBackgroundJobExited(final BackgroundJob task) {
-        mHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                mBackgroundTasks.remove(task);
-                updateNotification();
-            }
+        mHandler.post(() -> {
+            mBackgroundTasks.remove(task);
+            updateNotification();
         });
     }
 

app/src/main/java/com/termux/app/TermuxViewClient.java

@@ -2,7 +2,6 @@ package com.termux.app;
 
 import android.content.Context;
 import android.media.AudioManager;
-import android.support.v4.widget.DrawerLayout;
 import android.view.Gravity;
 import android.view.InputDevice;
 import android.view.KeyEvent;
@@ -16,6 +15,8 @@ import com.termux.view.TerminalViewClient;
 
 import java.util.List;
 
+import androidx.drawerlayout.widget.DrawerLayout;
+
 public final class TermuxViewClient implements TerminalViewClient {
 
     final TermuxActivity mActivity;
@@ -112,12 +113,12 @@ public final class TermuxViewClient implements TerminalViewClient {
 
     @Override
     public boolean readControlKey() {
-        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readControlButton()) || mVirtualControlKeyDown;
+        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readSpecialButton(ExtraKeysView.SpecialButton.CTRL)) || mVirtualControlKeyDown;
     }
 
     @Override
     public boolean readAltKey() {
-        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readAltButton());
+        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readSpecialButton(ExtraKeysView.SpecialButton.ALT));
     }
 
     @Override
@@ -209,6 +210,7 @@ public final class TermuxViewClient implements TerminalViewClient {
 
                 // Writing mode:
                 case 'q':
+                case 'k':
                     mActivity.toggleShowExtraKeys();
                     break;
             }
@@ -262,7 +264,9 @@ public final class TermuxViewClient implements TerminalViewClient {
     /** Handle dedicated volume buttons as virtual keys if applicable. */
     private boolean handleVirtualKeys(int keyCode, KeyEvent event, boolean down) {
         InputDevice inputDevice = event.getDevice();
-        if (inputDevice != null && inputDevice.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
+        if (mActivity.mSettings.mDisableVolumeVirtualKeys) {
+            return false;
+        } else if (inputDevice != null && inputDevice.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
             // Do not steal dedicated buttons from a full external keyboard.
             return false;
         } else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {

app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java

@@ -71,11 +71,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Root.COLUMN_ROOT_ID, getDocIdForFile(BASE_DIR));
         row.add(Root.COLUMN_DOCUMENT_ID, getDocIdForFile(BASE_DIR));
         row.add(Root.COLUMN_SUMMARY, null);
-        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH);
+        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH | Root.FLAG_SUPPORTS_IS_CHILD);
         row.add(Root.COLUMN_TITLE, applicationName);
         row.add(Root.COLUMN_MIME_TYPES, ALL_MIME_TYPES);
         row.add(Root.COLUMN_AVAILABLE_BYTES, BASE_DIR.getFreeSpace());
-        row.add(Root.COLUMN_ICON, R.mipmap.ic_launcher);
+        row.add(Root.COLUMN_ICON, R.drawable.ic_launcher);
         return result;
     }
 
@@ -117,6 +117,29 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         return true;
     }
 
+    @Override
+    public String createDocument(String parentDocumentId, String mimeType, String displayName) throws FileNotFoundException {
+        File newFile = new File(parentDocumentId, displayName);
+        int noConflictId = 2;
+        while (newFile.exists()) {
+            newFile = new File(parentDocumentId, displayName + " (" + noConflictId++ + ")");
+        }
+        try {
+            boolean succeeded;
+            if (Document.MIME_TYPE_DIR.equals(mimeType)) {
+                succeeded = newFile.mkdir();
+            } else {
+                succeeded = newFile.createNewFile();
+            }
+            if (!succeeded) {
+                throw new FileNotFoundException("Failed to create document with id " + newFile.getPath());
+            }
+        } catch (IOException e) {
+            throw new FileNotFoundException("Failed to create document with id " + newFile.getPath());
+        }
+        return newFile.getPath();
+    }
+
     @Override
     public void deleteDocument(String documentId) throws FileNotFoundException {
         File file = getFileForDocId(documentId);
@@ -169,6 +192,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         return result;
     }
 
+    @Override
+    public boolean isChildDocument(String parentDocumentId, String documentId) {
+        return documentId.startsWith(parentDocumentId);
+    }
+
     /**
      * Get the document id given a file. This document id must be consistent across time as other
      * applications may save the ID and use it to reference documents later.
@@ -220,10 +248,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
 
         int flags = 0;
         if (file.isDirectory()) {
-            if (file.isDirectory() && file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
+            if (file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
         } else if (file.canWrite()) {
-            flags |= Document.FLAG_SUPPORTS_WRITE | Document.FLAG_SUPPORTS_DELETE;
+            flags |= Document.FLAG_SUPPORTS_WRITE;
         }
+        if (file.getParentFile().canWrite()) flags |= Document.FLAG_SUPPORTS_DELETE;
 
         final String displayName = file.getName();
         final String mimeType = getMimeType(file);
@@ -236,7 +265,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Document.COLUMN_MIME_TYPE, mimeType);
         row.add(Document.COLUMN_LAST_MODIFIED, file.lastModified());
         row.add(Document.COLUMN_FLAGS, flags);
-        row.add(Document.COLUMN_ICON, R.mipmap.ic_launcher);
+        row.add(Document.COLUMN_ICON, R.drawable.ic_launcher);
     }
 
 }

app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java

@@ -2,7 +2,6 @@ package com.termux.filepicker;
 
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
@@ -22,6 +21,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
 
 public class TermuxFileReceiverActivity extends Activity {
 
@@ -37,6 +37,11 @@ public class TermuxFileReceiverActivity extends Activity {
      */
     boolean mFinishOnDismissNameDialog = true;
 
+    static boolean isSharedTextAnUrl(String sharedText) {
+        return Patterns.WEB_URL.matcher(sharedText).matches()
+            || Pattern.matches("magnet:\\?xt=urn:btih:.*?", sharedText);
+    }
+
     @Override
     protected void onResume() {
         super.onResume();
@@ -51,7 +56,7 @@ public class TermuxFileReceiverActivity extends Activity {
             final Uri sharedUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
 
             if (sharedText != null) {
-                if (Patterns.WEB_URL.matcher(sharedText).matches()) {
+                if (isSharedTextAnUrl(sharedText)) {
                     handleUrlAndFinish(sharedText);
                 } else {
                     String subject = intent.getStringExtra(Intent.EXTRA_SUBJECT);
@@ -83,17 +88,7 @@ public class TermuxFileReceiverActivity extends Activity {
 
     void showErrorDialogAndQuit(String message) {
         mFinishOnDismissNameDialog = false;
-        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(new DialogInterface.OnDismissListener() {
-            @Override
-            public void onDismiss(DialogInterface dialog) {
-                finish();
-            }
-        }).setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
-                finish();
-            }
-        }).show();
+        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(dialog -> finish()).setPositiveButton(android.R.string.ok, (dialog, which) -> finish()).show();
     }
 
     void handleContentUri(final Uri uri, String subjectFromIntent) {
@@ -119,54 +114,40 @@ public class TermuxFileReceiverActivity extends Activity {
     }
 
     void promptNameAndSave(final InputStream in, final String attachmentFileName) {
-        DialogUtils.textInput(this, R.string.file_received_title, attachmentFileName, R.string.file_received_edit_button, new DialogUtils.TextSetListener() {
-                @Override
-                public void onTextSet(String text) {
-                    File outFile = saveStreamWithName(in, text);
-                    if (outFile == null) return;
+        DialogUtils.textInput(this, R.string.file_received_title, attachmentFileName, R.string.file_received_edit_button, text -> {
+            File outFile = saveStreamWithName(in, text);
+            if (outFile == null) return;
 
-                    final File editorProgramFile = new File(EDITOR_PROGRAM);
-                    if (!editorProgramFile.isFile()) {
-                        showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
-                            + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
-                        return;
-                    }
+            final File editorProgramFile = new File(EDITOR_PROGRAM);
+            if (!editorProgramFile.isFile()) {
+                showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
+                    + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
+                return;
+            }
 
-                    // Do this for the user if necessary:
-                    //noinspection ResultOfMethodCallIgnored
-                    editorProgramFile.setExecutable(true);
+            // Do this for the user if necessary:
+            //noinspection ResultOfMethodCallIgnored
+            editorProgramFile.setExecutable(true);
 
-                    final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
+            final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
 
-                    Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, scriptUri);
-                    executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
-                    executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
-                    startService(executeIntent);
-                    finish();
-                }
+            Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, scriptUri);
+            executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+            executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
+            startService(executeIntent);
+            finish();
+        },
+            R.string.file_received_open_folder_button, text -> {
+                if (saveStreamWithName(in, text) == null) return;
+
+                Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE);
+                executeIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, TERMUX_RECEIVEDIR);
+                executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+                startService(executeIntent);
+                finish();
             },
-            R.string.file_received_open_folder_button, new DialogUtils.TextSetListener() {
-                @Override
-                public void onTextSet(String text) {
-                    if (saveStreamWithName(in, text) == null) return;
-
-                    Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE);
-                    executeIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, TERMUX_RECEIVEDIR);
-                    executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
-                    startService(executeIntent);
-                    finish();
-                }
-            },
-            android.R.string.cancel, new DialogUtils.TextSetListener() {
-                @Override
-                public void onTextSet(final String text) {
-                    finish();
-                }
-            }, new DialogInterface.OnDismissListener() {
-                @Override
-                public void onDismiss(DialogInterface dialog) {
-                    if (mFinishOnDismissNameDialog) finish();
-                }
+            android.R.string.cancel, text -> finish(), dialog -> {
+                if (mFinishOnDismissNameDialog) finish();
             });
     }
 

app/src/main/res/drawable-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@android:color/black"/>
+    <foreground android:drawable="@drawable/ic_foreground"/>
+</adaptive-icon>

app/src/main/res/drawable/current_session.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
     <solid android:color="#E0E0E0" />
-</shape>
+</shape>

app/src/main/res/drawable/current_session_black.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#212325" />
+</shape>

app/src/main/res/drawable/ic_foreground.xml

@@ -0,0 +1,28 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="108dp"
+    android:width="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+
+    <!-- Keep in sync with non-adaptive ic_launcher.xml -->
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M34,38
+                          h6
+                          l12,16
+                          l-12,16
+                          h-6
+                          l12,-16
+                          "
+        />
+
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M56,66
+                          h18
+                          v4
+                          h-18
+                          "
+        />
+
+</vector>

app/src/main/res/drawable/ic_launcher.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="108dp"
+    android:width="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+
+    <path
+        android:fillColor="#000000"
+        android:pathData="M18,54
+                          A36,36 0 1,1 90,54
+                          A36,36 0 1,1 18,54 Z" />
+
+    <!-- Keep in sync with adaptive ic_foreground.xml: -->
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M34,38
+                          h6
+                          l12,16
+                          l-12,16
+                          h-6
+                          l12,-16
+                          "
+        />
+
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M56,66
+                          h18
+                          v4
+                          h-18
+                          "
+        />
+
+</vector>

app/src/main/res/drawable/ic_service_notification.xml

@@ -1,33 +1,24 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:height="48dp"
-    android:width="48dp"
-    android:viewportWidth="48"
-    android:viewportHeight="48">
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
     <!--
-        https://material.google.com/style/icons.html
+        Updated notification icon compliant with system icons guidelines
+        https://material.io/design/iconography/system-icons.html
     -->
 
-    <!-- Screen border. -->
-    <path android:fillColor="#00000000"
-          android:strokeColor="#FFF"
-          android:strokeWidth="3"
-          android:pathData="M7,4
-                            l34,0
-                            q3 0,3 3
-                            l0,34
-                            q0 3, -3 3
-                            l-34,0
-                            q-3 0, -3-3
-                            l0 -34
-                            q0 -3, 3 -3"
-          />
+    <group>
+        <clip-path
+            android:pathData="M0,0h24v24h-24z"/>
 
-    <!-- Block cursor. -->
-    <path android:fillColor="#FFF"
-          android:pathData="M14,14
-                            l5,0
-                            l0,10
-                            l-5,0"
-        />
+        <path
+            android:pathData="M5,4H2L8,12L2,20H5L11,12L5,4Z"
+            android:fillColor="#ffffff"/>
 
+        <path
+            android:pathData="M13,18H22V20H13V18Z"
+            android:fillColor="#ffffff"/>
+
+    </group>
 </vector>

app/src/main/res/drawable/selected_session_background_black.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_activated="true" android:drawable="@drawable/current_session_black"/>
+    <item android:state_activated="false" android:drawable="@drawable/session_ripple_black"/>
+</selector>

app/src/main/res/drawable/session_ripple.xml

@@ -4,4 +4,4 @@
     <item>
         <color android:color="@android:color/white" />
     </item>
-</ripple>
+</ripple>

app/src/main/res/drawable/session_ripple_black.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="@android:color/darker_gray" >
+    <item>
+        <color android:color="@android:color/background_dark" />
+    </item>
+</ripple>

app/src/main/res/layout/drawer_layout.xml

@@ -4,7 +4,7 @@
     android:orientation="vertical"
     android:fitsSystemWindows="true">
 
-    <android.support.v4.widget.DrawerLayout
+    <androidx.drawerlayout.widget.DrawerLayout
         android:id="@+id/drawer_layout"
         android:layout_width="match_parent"
         android:layout_alignParentTop="true"
@@ -15,6 +15,8 @@
             android:id="@+id/terminal_view"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
+            android:layout_marginRight="3dp"
+            android:layout_marginLeft="3dp"
             android:focusableInTouchMode="true"
             android:scrollbarThumbVertical="@drawable/terminal_scroll_shape"
             android:scrollbars="vertical" />
@@ -64,13 +66,13 @@
             </LinearLayout>
         </LinearLayout>
 
-    </android.support.v4.widget.DrawerLayout>
+    </androidx.drawerlayout.widget.DrawerLayout>
 
-    <android.support.v4.view.ViewPager
+    <androidx.viewpager.widget.ViewPager
         android:id="@+id/viewpager"
         android:visibility="gone"
         android:layout_width="match_parent"
-        android:layout_height="75dp"
+        android:layout_height="37.5dp"
         android:background="@android:drawable/screen_background_dark_transparent"
         android:layout_alignParentBottom="true" />
 </RelativeLayout>

app/src/main/res/layout/extra_keys_right.xml

@@ -8,6 +8,7 @@
     android:maxLines="1"
     android:inputType="text"
     android:textColor="@android:color/white"
+    android:textColorHighlight="@android:color/darker_gray"
     android:paddingTop="0dp"
     android:textCursorDrawable="@null"
     android:paddingBottom="0dp"

app/src/main/res/values/strings.xml

@@ -1,51 +1,53 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-   <string name="application_name">Termux</string>
-   <string name="shared_user_label">Termux user</string>
-   <string name="new_session">New session</string>
-   <string name="new_session_failsafe">Failsafe</string>
-   <string name="toggle_soft_keyboard">Keyboard</string>
-   <string name="reset_terminal">Reset</string>
-   <string name="style_terminal">Style</string>
-   <string name="share_transcript_title">Terminal transcript</string>
-   <string name="help">Help</string>
+    <string name="application_name">Termux</string>
+    <string name="shared_user_label">Termux user</string>
+    <string name="run_command_permission_label">Run commands in Termux environment</string>
+    <string name="run_command_permission_description">execute arbitrary commands within Termux environment</string>
+    <string name="new_session">New session</string>
+    <string name="new_session_failsafe">Failsafe</string>
+    <string name="toggle_soft_keyboard">Keyboard</string>
+    <string name="reset_terminal">Reset</string>
+    <string name="style_terminal">Style</string>
+    <string name="share_transcript_title">Terminal transcript</string>
+    <string name="help">Help</string>
+    <string name="toggle_keep_screen_on">Keep screen on</string>
 
-   <string name="bootstrap_installer_body">Installing…</string>
-   <string name="bootstrap_error_title">Unable to install</string>
-   <string name="bootstrap_error_body">Termux was unable to install the bootstrap packages.\n\nCheck your network connection and try again.</string>
-   <string name="bootstrap_error_abort">Abort</string>
-   <string name="bootstrap_error_try_again">Try again</string>
-   <string name="bootstrap_error_not_primary_user_message">Termux can only be installed on the primary user account.</string>
+    <string name="bootstrap_installer_body">Installing…</string>
+    <string name="bootstrap_error_title">Unable to install</string>
+    <string name="bootstrap_error_body">Termux was unable to install the bootstrap packages.</string>
+    <string name="bootstrap_error_abort">Abort</string>
+    <string name="bootstrap_error_try_again">Try again</string>
+    <string name="bootstrap_error_not_primary_user_message">Termux can only be installed on the primary user account.</string>
 
-   <string name="max_terminals_reached_title">Max terminals reached</string>
-   <string name="max_terminals_reached_message">Close down existing ones before creating new.</string>
+    <string name="max_terminals_reached_title">Max terminals reached</string>
+    <string name="max_terminals_reached_message">Close down existing ones before creating new.</string>
 
-   <string name="reset_toast_notification">Terminal reset.</string>
+    <string name="reset_toast_notification">Terminal reset.</string>
 
-  <string name="select_url">Select URL</string>
-  <string name="select_url_dialog_title">Click URL to copy or long press to open</string>
-  <string name="select_all_and_share">Share transcript</string>
-  <string name="select_url_no_found">No URL found in the terminal.</string>
-  <string name="select_url_copied_to_clipboard">URL copied to clipboard</string>
-  <string name="share_transcript_chooser_title">Send text to:</string>
+    <string name="select_url">Select URL</string>
+    <string name="select_url_dialog_title">Click URL to copy or long press to open</string>
+    <string name="select_all_and_share">Share transcript</string>
+    <string name="select_url_no_found">No URL found in the terminal.</string>
+    <string name="select_url_copied_to_clipboard">URL copied to clipboard</string>
+    <string name="share_transcript_chooser_title">Send text to:</string>
 
-  <string name="kill_process">Kill process (%d)</string>
-  <string name="confirm_kill_process">Really kill this session?</string>
+    <string name="kill_process">Kill process (%d)</string>
+    <string name="confirm_kill_process">Really kill this session?</string>
 
-  <string name="session_rename_title">Set session name</string>
-  <string name="session_rename_positive_button">Set</string>
-  <string name="session_new_named_title">New named session</string>
-  <string name="session_new_named_positive_button">Create</string>
+    <string name="session_rename_title">Set session name</string>
+    <string name="session_rename_positive_button">Set</string>
+    <string name="session_new_named_title">New named session</string>
+    <string name="session_new_named_positive_button">Create</string>
 
-  <string name="styling_not_installed">The Termux:Style add-on is not installed.</string>
-  <string name="styling_install">Install</string>
+    <string name="styling_not_installed">The Termux:Style add-on is not installed.</string>
+    <string name="styling_install">Install</string>
 
-  <string name="notification_action_exit">Exit</string>
-  <string name="notification_action_wake_lock">Acquire wakelock</string>
-  <string name="notification_action_wake_unlock">Release wakelock</string>
-
-  <string name="file_received_title">Save file in ~/downloads/</string>
-  <string name="file_received_edit_button">Edit</string>
-  <string name="file_received_open_folder_button">Open folder</string>
+    <string name="notification_action_exit">Exit</string>
+    <string name="notification_action_wake_lock">Acquire wakelock</string>
+    <string name="notification_action_wake_unlock">Release wakelock</string>
 
+    <string name="file_received_title">Save file in ~/downloads/</string>
+    <string name="file_received_edit_button">Edit</string>
+    <string name="file_received_open_folder_button">Open folder</string>
 </resources>

app/src/main/res/values/styles.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <!-- See https://developer.android.com/training/material/theme.html for how to customize the Material theme. -->
-    <!-- NOTE: Cannot use "Light." since it hides the terminal scrollbar on the default black background. -->
     <style name="Theme.Termux" parent="@android:style/Theme.Material.Light.NoActionBar">
         <item name="android:statusBarColor">#000000</item>
         <item name="android:colorPrimary">#FF000000</item>
@@ -23,9 +21,29 @@
         <item name="android:windowAllowEnterTransitionOverlap">true</item>
     </style>
 
-	<style name="TermuxAlertDialogStyle" parent="@android:style/Theme.Material.Light.Dialog.Alert">
-	    <!-- Seen in buttons on alert dialog: -->
+    <style name="TermuxAlertDialogStyle" parent="@android:style/Theme.Material.Light.Dialog.Alert">
+        <!-- Seen in buttons on alert dialog: -->
         <item name="android:colorAccent">#212121</item>
     </style>
 
+    <!-- See https://developer.android.com/training/material/theme.html for how to customize the Material theme. -->
+    <!-- NOTE: Cannot use "Light." since it hides the terminal scrollbar on the default black background. -->
+    <style name="Theme.Termux.Black" parent="@android:style/Theme.Material.NoActionBar">
+        <item name="android:statusBarColor">#000000</item>
+        <item name="android:colorPrimary">#FF000000</item>
+        <item name="android:windowBackground">@android:color/black</item>
+
+        <!-- Seen in buttons on left drawer: -->
+        <item name="android:colorAccent">#FDFDFD</item>
+        <!-- Avoid action mode toolbar pushing down terminal content when
+             selecting text on pre-6.0 (non-floating toolbar). -->
+        <item name="android:windowActionModeOverlay">true</item>
+
+        <item name="android:windowTranslucentStatus">true</item>
+        <item name="android:windowTranslucentNavigation">true</item>
+
+        <!-- https://developer.android.com/training/tv/start/start.html#transition-color -->
+        <item name="android:windowAllowReturnTransitionOverlap">true</item>
+        <item name="android:windowAllowEnterTransitionOverlap">true</item>
+    </style>
 </resources>

app/src/main/res/xml/backupscheme.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<full-backup-content>
-    <!-- See https://developer.android.com/training/backup/autosyncapi.html -->
-    <include domain="file" path="home/backup" />
-</full-backup-content>

app/src/main/res/xml/shortcuts.xml

@@ -1,5 +1,6 @@
 <shortcuts xmlns:tools="http://schemas.android.com/tools"
            xmlns:android="http://schemas.android.com/apk/res/android">
+
     <shortcut
         android:shortcutId="new_session"
         android:enabled="true"
@@ -11,4 +12,19 @@
             android:targetPackage="com.termux"
             android:targetClass="com.termux.app.TermuxActivity"/>
     </shortcut>
+
+    <shortcut
+        android:shortcutId="new_failsafe_session"
+        android:enabled="true"
+        android:icon="@drawable/ic_new_session"
+        android:shortcutShortLabel="@string/new_session_failsafe"
+        tools:targetApi="n_mr1">
+        <intent
+            android:action="android.intent.action.RUN"
+            android:targetPackage="com.termux"
+            android:targetClass="com.termux.app.TermuxActivity">
+            <extra android:name="com.termux.app.failsafe_session" android:value="true" />
+        </intent>
+    </shortcut>
+
 </shortcuts>

app/src/test/java/com/termux/app/TermuxActivityTest.java

@@ -1,25 +1,30 @@
 package com.termux.app;
 
-import junit.framework.TestCase;
+import org.junit.Assert;
+import org.junit.Test;
 
 import java.util.Collections;
 import java.util.LinkedHashSet;
 
-public class TermuxActivityTest extends TestCase {
+public class TermuxActivityTest {
 
-	private void assertUrlsAre(String text, String... urls) {
-		LinkedHashSet<String> expected = new LinkedHashSet<>();
-		Collections.addAll(expected, urls);
-		assertEquals(expected, TermuxActivity.extractUrls(text));
-	}
+    private void assertUrlsAre(String text, String... urls) {
+        LinkedHashSet<String> expected = new LinkedHashSet<>();
+        Collections.addAll(expected, urls);
+        Assert.assertEquals(expected, TermuxActivity.extractUrls(text));
+    }
 
-	public void testExtractUrls() {
-		assertUrlsAre("hello http://example.com world", "http://example.com");
+    @Test
+    public void testExtractUrls() {
+        assertUrlsAre("hello http://example.com world", "http://example.com");
 
-		assertUrlsAre("http://example.com\nhttp://another.com", "http://example.com", "http://another.com");
+        assertUrlsAre("http://example.com\nhttp://another.com", "http://example.com", "http://another.com");
 
-		assertUrlsAre("hello http://example.com world and http://more.example.com with secure https://more.example.com",
-				"http://example.com", "http://more.example.com", "https://more.example.com");
-	}
+        assertUrlsAre("hello http://example.com world and http://more.example.com with secure https://more.example.com",
+            "http://example.com", "http://more.example.com", "https://more.example.com");
+
+        assertUrlsAre("hello https://example.com/#bar https://example.com/foo#bar",
+            "https://example.com/#bar", "https://example.com/foo#bar");
+    }
 
 }

app/src/test/java/com/termux/filepicker/TermuxFileReceiverActivityTest.java

@@ -0,0 +1,32 @@
+package com.termux.filepicker;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RunWith(RobolectricTestRunner.class)
+public class TermuxFileReceiverActivityTest {
+
+    @Test
+    public void testIsSharedTextAnUrl() {
+        List<String> validUrls = new ArrayList<>();
+        validUrls.add("http://example.com");
+        validUrls.add("https://example.com");
+        validUrls.add("https://example.com/path/parameter=foo");
+        validUrls.add("magnet:?xt=urn:btih:d540fc48eb12f2833163eed6421d449dd8f1ce1f&dn=Ubuntu+desktop+19.04+%2864bit%29&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80&tr=udp%3A%2F%2Ftracker.publicbt.com%3A80&tr=udp%3A%2F%2Ftracker.ccc.de%3A80");
+        for (String url : validUrls) {
+            Assert.assertTrue(TermuxFileReceiverActivity.isSharedTextAnUrl(url));
+        }
+
+        List<String> invalidUrls = new ArrayList<>();
+        invalidUrls.add("a test with example.com");
+        for (String url : invalidUrls) {
+            Assert.assertFalse(TermuxFileReceiverActivity.isSharedTextAnUrl(url));
+        }
+    }
+
+}

art/copy-to-other-apps.sh

@@ -1,20 +1,13 @@
 #!/bin/sh
+set -e -u
 
-for DENSITY in mdpi hdpi xhdpi xxhdpi xxxhdpi; do
-	FOLDER=../app/src/main/res/mipmap-$DENSITY
-
-	for FILE in ic_launcher ic_launcher_round; do
-		PNG=$FOLDER/$FILE.png
-
-		# Update other apps:
-		for APP in api boot styling tasker widget; do
-			APPDIR=../../termux-$APP
-			if [ -d $APPDIR ]; then
-				APP_FOLDER=$APPDIR/app/src/main/res/mipmap-$DENSITY
-				mkdir -p $APP_FOLDER
-				cp $PNG $APP_FOLDER/$FILE.png
-			fi
-		done
+for APP in api boot styling tasker widget; do
+	APPDIR=../../termux-$APP
+	for file in ic_foreground ic_launcher; do
+		cp ../app/src/main/res/drawable/$file.xml \
+			$APPDIR/app/src/main/res/drawable/$file.xml
 	done
 
+	cp ../app/src/main/res/drawable-anydpi-v26/ic_launcher.xml \
+		$APPDIR/app/src/main/res/drawable-anydpi-v26/$file.xml
 done

art/generate-big-icon.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+set -e -u
+
+echo "Generating ~/termux-icons/ic_launcher.png..."
+mkdir -p ~/termux-icons/
+
+vector2svg ../app/src/main/res/drawable/ic_launcher.xml ~/termux-icons/ic_launcher.svg
+
+sed -i "" 's/viewBox="0 0 108 108"/viewBox="18 18 72 72"/' ~/termux-icons/ic_launcher.svg
+
+SIZE=512
+rsvg-convert \
+	-w $SIZE \
+	-h $SIZE \
+	-o ~/termux-icons/ic_launcher_$SIZE.png \
+	~/termux-icons/ic_launcher.svg
+
+rsvg-convert \
+	-b black \
+	-w $SIZE \
+	-h $SIZE \
+	-o ~/termux-icons/ic_launcher_square_$SIZE.png \
+	~/termux-icons/ic_launcher.svg

art/ic_launcher_round.svg

@@ -1,21 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
-
-    <!-- Screen and border. -->
-    <path fill="#000"
-          stroke="#BFCBCD"
-          stroke-width="2"
-          d="M 24, 24
-             m -21, 0
-             a 21,21 0 1,0 42,0
-             a 21,21 0 1,0 -42,0"
-    />
-
-    <!-- Block cursor. -->
-    <path fill="#FFF"
-          d="M15,15
-             l5,0
-             l0,10
-             l-5,0"
-    />
-
-</svg>

build.gradle

@@ -4,7 +4,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.3'
+        classpath 'com.android.tools.build:gradle:4.0.1'
     }
 }
 

gradle.properties

@@ -13,3 +13,9 @@
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx2048M
+android.useAndroidX=true
+
+minSdkVersion=24
+targetSdkVersion=28
+ndkVersion=21.3.6528147
+compileSdkVersion=28

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.7-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
+distributionSha256Sum=7873ed5287f47ca03549ab8dcb6dc877ac7f0e3d7b1eb12685161d10080910ac
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,5 +1,21 @@
 #!/usr/bin/env sh
 
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
 ##############################################################################
 ##
 ##  Gradle start up script for UN*X
@@ -28,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
@@ -66,6 +82,7 @@ esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -109,10 +126,11 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
@@ -138,19 +156,19 @@ if $cygwin ; then
         else
             eval `echo args$i`="\"$arg\""
         fi
-        i=$((i+1))
+        i=`expr $i + 1`
     done
     case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
     esac
 fi
 
@@ -159,14 +177,9 @@ save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }
-APP_ARGS=$(save "$@")
+APP_ARGS=`save "$@"`
 
 # Collect all arguments for the java command, following the shell quoting and substitution rules
 eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -1,3 +1,19 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
 @if "%DEBUG%" == "" @echo off
 @rem ##########################################################################
 @rem
@@ -13,15 +29,18 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -35,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -45,28 +64,14 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
+
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell

terminal-emulator/build.gradle

@@ -17,11 +17,12 @@ ext {
 }
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion project.properties.compileSdkVersion.toInteger()
+    ndkVersion project.properties.ndkVersion
 
     defaultConfig {
-        minSdkVersion 21
-        targetSdkVersion 27
+        minSdkVersion project.properties.minSdkVersion.toInteger()
+        targetSdkVersion project.properties.targetSdkVersion.toInteger()
 
         externalNativeBuild {
             ndkBuild {
@@ -46,6 +47,11 @@ android {
             path "src/main/jni/Android.mk"
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 tasks.withType(Test) {
@@ -55,7 +61,7 @@ tasks.withType(Test) {
 }
 
 dependencies {
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13'
 }
 
 apply from: '../scripts/bintray-publish.gradle'

terminal-emulator/src/main/java/com/termux/terminal/TerminalBuffer.java

@@ -1,5 +1,7 @@
 package com.termux.terminal;
 
+import java.util.Arrays;
+
 /**
  * A circular buffer of {@link TerminalRow}:s which keeps notes about what is visible on a logical screen and the scroll
  * history.
@@ -39,7 +41,23 @@ public final class TerminalBuffer {
         return getSelectedText(0, -getActiveTranscriptRows(), mColumns, mScreenRows).trim();
     }
 
+    public String getTranscriptTextWithoutJoinedLines() {
+        return getSelectedText(0, -getActiveTranscriptRows(), mColumns, mScreenRows, false).trim();
+    }
+
+    public String getTranscriptTextWithFullLinesJoined() {
+        return getSelectedText(0, -getActiveTranscriptRows(), mColumns, mScreenRows, true, true).trim();
+    }
+
     public String getSelectedText(int selX1, int selY1, int selX2, int selY2) {
+        return getSelectedText(selX1, selY1, selX2, selY2, true);
+    }
+
+    public String getSelectedText(int selX1, int selY1, int selX2, int selY2, boolean joinBackLines) {
+        return getSelectedText(selX1, selY1, selX2, selY2, true, false);
+    }
+
+    public String getSelectedText(int selX1, int selY1, int selX2, int selY2, boolean joinBackLines, boolean joinFullLines) {
         final StringBuilder builder = new StringBuilder();
         final int columns = mColumns;
 
@@ -77,7 +95,9 @@ public final class TerminalBuffer {
             }
             if (lastPrintingCharIndex != -1)
                 builder.append(line, x1Index, lastPrintingCharIndex - x1Index + 1);
-            if (!rowLineWrap && row < selY2 && row < mScreenRows - 1) builder.append('\n');
+            boolean lineFillsWidth = lastPrintingCharIndex == x2Index - 1;
+            if ((!joinBackLines || !rowLineWrap) && (!joinFullLines || !lineFillsWidth)
+                && row < selY2 && row < mScreenRows - 1) builder.append('\n');
         }
         return builder.toString();
     }
@@ -422,4 +442,14 @@ public final class TerminalBuffer {
         }
     }
 
+    public void clearTranscript() {
+        if (mScreenFirstRow < mActiveTranscriptRows) {
+            Arrays.fill(mLines, mTotalRows + mScreenFirstRow - mActiveTranscriptRows, mTotalRows, null);
+            Arrays.fill(mLines, 0, mScreenFirstRow, null);
+        } else {
+            Arrays.fill(mLines, mScreenFirstRow - mActiveTranscriptRows, mScreenFirstRow, null);
+        }
+        mActiveTranscriptRows = 0;
+    }
+
 }

terminal-emulator/src/main/java/com/termux/terminal/TerminalEmulator.java

@@ -1267,6 +1267,7 @@ public final class TerminalEmulator {
                 break;
             case 'c': // RIS - Reset to Initial State (http://vt100.net/docs/vt510-rm/RIS).
                 reset();
+                mMainBuffer.clearTranscript();
                 blockClear(0, 0, mColumns, mRows);
                 setCursorPosition(0, 0);
                 break;
@@ -1376,10 +1377,10 @@ public final class TerminalEmulator {
             }
             break;
             case 'A': // "CSI${n}A" - Cursor up (CUU) ${n} rows.
-                setCursorRow(Math.max(mTopMargin, mCursorRow - getArg0(1)));
+                setCursorRow(Math.max(0, mCursorRow - getArg0(1)));
                 break;
             case 'B': // "CSI${n}B" - Cursor down (CUD) ${n} rows.
-                setCursorRow(Math.min(mBottomMargin - 1, mCursorRow + getArg0(1)));
+                setCursorRow(Math.min(mRows - 1, mCursorRow + getArg0(1)));
                 break;
             case 'C': // "CSI${n}C" - Cursor forward (CUF).
             case 'a': // "CSI${n}a" - Horizontal position relative (HPR). From ISO-6428/ECMA-48.
@@ -1404,7 +1405,7 @@ public final class TerminalEmulator {
             case 'I': // Cursor Horizontal Forward Tabulation (CHT). Move the active position n tabs forward.
                 setCursorCol(nextTabStop(getArg0(1)));
                 break;
-            case 'J': // "${CSI}${0,1,2}J" - Erase in Display (ED)
+            case 'J': // "${CSI}${0,1,2,3}J" - Erase in Display (ED)
                 // ED ignores the scrolling margins.
                 switch (getArg0(0)) {
                     case 0: // Erase from the active position to the end of the screen, inclusive (default).
@@ -1419,6 +1420,9 @@ public final class TerminalEmulator {
                         // move..
                         blockClear(0, 0, mColumns, mRows);
                         break;
+                    case 3: // Delete all lines saved in the scrollback buffer (xterm etc)
+                        mMainBuffer.clearTranscript();
+                        break;
                     default:
                         unknownSequence(b);
                         return;

terminal-emulator/src/main/java/com/termux/terminal/TerminalSession.java

@@ -8,6 +8,7 @@ import android.system.Os;
 import android.system.OsConstants;
 import android.util.Log;
 
+import java.io.File;
 import java.io.FileDescriptor;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
@@ -109,13 +110,13 @@ public final class TerminalSession extends TerminalOutput {
 
         @Override
         public void handleMessage(Message msg) {
-            if (msg.what == MSG_NEW_INPUT && isRunning()) {
-                int bytesRead = mProcessToTerminalIOQueue.read(mReceiveBuffer, false);
-                if (bytesRead > 0) {
-                    mEmulator.append(mReceiveBuffer, bytesRead);
-                    notifyScreenUpdate();
-                }
-            } else if (msg.what == MSG_PROCESS_EXITED) {
+            int bytesRead = mProcessToTerminalIOQueue.read(mReceiveBuffer, false);
+            if (bytesRead > 0) {
+                mEmulator.append(mReceiveBuffer, bytesRead);
+                notifyScreenUpdate();
+            }
+
+            if (msg.what == MSG_PROCESS_EXITED) {
                 int exitCode = (Integer) msg.obj;
                 cleanupResources(exitCode);
                 mChangeCallback.onSessionFinished(TerminalSession.this);
@@ -339,4 +340,26 @@ public final class TerminalSession extends TerminalOutput {
         return mShellPid;
     }
 
+    /** Returns the shell's working directory or null if it was unavailable. */
+    public String getCwd() {
+        if (mShellPid < 1) {
+            return null;
+        }
+        try {
+            final String cwdSymlink = String.format("/proc/%s/cwd/", mShellPid);
+            String outputPath = new File(cwdSymlink).getCanonicalPath();
+            String outputPathWithTrailingSlash = outputPath;
+            if (!outputPath.endsWith("/")) {
+                outputPathWithTrailingSlash += '/';
+            }
+            if (!cwdSymlink.equals(outputPathWithTrailingSlash)) {
+                return outputPath;
+            }
+        } catch (IOException | SecurityException e) {
+            Log.e(EmulatorDebug.LOG_TAG, "Error getting current directory", e);
+        }
+        return null;
+    }
+
+
 }

terminal-emulator/src/main/java/com/termux/terminal/WcWidth.java

@@ -4,212 +4,225 @@ package com.termux.terminal;
  * Implementation of wcwidth(3) for Unicode 9.
  *
  * Implementation from https://github.com/jquast/wcwidth but we return 0 for unprintable characters.
+ *
+ * IMPORTANT:
+ * Must be kept in sync with the following:
+ * https://github.com/termux/wcwidth
+ * https://github.com/termux/libandroid-support
+ * https://github.com/termux/termux-packages/tree/master/libandroid-support
  */
 public final class WcWidth {
 
     // From https://github.com/jquast/wcwidth/blob/master/wcwidth/table_zero.py
-    // t commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
+    // at commit b29897e5a1b403a0e36f7fc991614981cbc42475 (2020-07-14):
     private static final int[][] ZERO_WIDTH = {
-        {0x0300, 0x036f},  // Combining Grave Accent  ..Combining Latin Small Le
-        {0x0483, 0x0489},  // Combining Cyrillic Titlo..Combining Cyrillic Milli
-        {0x0591, 0x05bd},  // Hebrew Accent Etnahta   ..Hebrew Point Meteg
-        {0x05bf, 0x05bf},  // Hebrew Point Rafe       ..Hebrew Point Rafe
-        {0x05c1, 0x05c2},  // Hebrew Point Shin Dot   ..Hebrew Point Sin Dot
-        {0x05c4, 0x05c5},  // Hebrew Mark Upper Dot   ..Hebrew Mark Lower Dot
-        {0x05c7, 0x05c7},  // Hebrew Point Qamats Qata..Hebrew Point Qamats Qata
-        {0x0610, 0x061a},  // Arabic Sign Sallallahou ..Arabic Small Kasra
-        {0x064b, 0x065f},  // Arabic Fathatan         ..Arabic Wavy Hamza Below
-        {0x0670, 0x0670},  // Arabic Letter Superscrip..Arabic Letter Superscrip
-        {0x06d6, 0x06dc},  // Arabic Small High Ligatu..Arabic Small High Seen
-        {0x06df, 0x06e4},  // Arabic Small High Rounde..Arabic Small High Madda
-        {0x06e7, 0x06e8},  // Arabic Small High Yeh   ..Arabic Small High Noon
-        {0x06ea, 0x06ed},  // Arabic Empty Centre Low ..Arabic Small Low Meem
-        {0x0711, 0x0711},  // Syriac Letter Superscrip..Syriac Letter Superscrip
-        {0x0730, 0x074a},  // Syriac Pthaha Above     ..Syriac Barrekh
-        {0x07a6, 0x07b0},  // Thaana Abafili          ..Thaana Sukun
-        {0x07eb, 0x07f3},  // Nko Combining Sh||t High..Nko Combining Double Dot
-        {0x0816, 0x0819},  // Samaritan Mark In       ..Samaritan Mark Dagesh
-        {0x081b, 0x0823},  // Samaritan Mark Epentheti..Samaritan Vowel Sign A
-        {0x0825, 0x0827},  // Samaritan Vowel Sign Sho..Samaritan Vowel Sign U
-        {0x0829, 0x082d},  // Samaritan Vowel Sign Lon..Samaritan Mark Nequdaa
-        {0x0859, 0x085b},  // Mandaic Affrication Mark..Mandaic Gemination Mark
-        {0x08d4, 0x08e1},  // (nil)                   ..
-        {0x08e3, 0x0902},  // Arabic Turned Damma Belo..Devanagari Sign Anusvara
-        {0x093a, 0x093a},  // Devanagari Vowel Sign Oe..Devanagari Vowel Sign Oe
-        {0x093c, 0x093c},  // Devanagari Sign Nukta   ..Devanagari Sign Nukta
-        {0x0941, 0x0948},  // Devanagari Vowel Sign U ..Devanagari Vowel Sign Ai
-        {0x094d, 0x094d},  // Devanagari Sign Virama  ..Devanagari Sign Virama
-        {0x0951, 0x0957},  // Devanagari Stress Sign U..Devanagari Vowel Sign Uu
-        {0x0962, 0x0963},  // Devanagari Vowel Sign Vo..Devanagari Vowel Sign Vo
-        {0x0981, 0x0981},  // Bengali Sign Candrabindu..Bengali Sign Candrabindu
-        {0x09bc, 0x09bc},  // Bengali Sign Nukta      ..Bengali Sign Nukta
-        {0x09c1, 0x09c4},  // Bengali Vowel Sign U    ..Bengali Vowel Sign Vocal
-        {0x09cd, 0x09cd},  // Bengali Sign Virama     ..Bengali Sign Virama
-        {0x09e2, 0x09e3},  // Bengali Vowel Sign Vocal..Bengali Vowel Sign Vocal
-        {0x0a01, 0x0a02},  // Gurmukhi Sign Adak Bindi..Gurmukhi Sign Bindi
-        {0x0a3c, 0x0a3c},  // Gurmukhi Sign Nukta     ..Gurmukhi Sign Nukta
-        {0x0a41, 0x0a42},  // Gurmukhi Vowel Sign U   ..Gurmukhi Vowel Sign Uu
-        {0x0a47, 0x0a48},  // Gurmukhi Vowel Sign Ee  ..Gurmukhi Vowel Sign Ai
-        {0x0a4b, 0x0a4d},  // Gurmukhi Vowel Sign Oo  ..Gurmukhi Sign Virama
-        {0x0a51, 0x0a51},  // Gurmukhi Sign Udaat     ..Gurmukhi Sign Udaat
-        {0x0a70, 0x0a71},  // Gurmukhi Tippi          ..Gurmukhi Addak
-        {0x0a75, 0x0a75},  // Gurmukhi Sign Yakash    ..Gurmukhi Sign Yakash
-        {0x0a81, 0x0a82},  // Gujarati Sign Candrabind..Gujarati Sign Anusvara
-        {0x0abc, 0x0abc},  // Gujarati Sign Nukta     ..Gujarati Sign Nukta
-        {0x0ac1, 0x0ac5},  // Gujarati Vowel Sign U   ..Gujarati Vowel Sign Cand
-        {0x0ac7, 0x0ac8},  // Gujarati Vowel Sign E   ..Gujarati Vowel Sign Ai
-        {0x0acd, 0x0acd},  // Gujarati Sign Virama    ..Gujarati Sign Virama
-        {0x0ae2, 0x0ae3},  // Gujarati Vowel Sign Voca..Gujarati Vowel Sign Voca
-        {0x0b01, 0x0b01},  // ||iya Sign Candrabindu  ..||iya Sign Candrabindu
-        {0x0b3c, 0x0b3c},  // ||iya Sign Nukta        ..||iya Sign Nukta
-        {0x0b3f, 0x0b3f},  // ||iya Vowel Sign I      ..||iya Vowel Sign I
-        {0x0b41, 0x0b44},  // ||iya Vowel Sign U      ..||iya Vowel Sign Vocalic
-        {0x0b4d, 0x0b4d},  // ||iya Sign Virama       ..||iya Sign Virama
-        {0x0b56, 0x0b56},  // ||iya Ai Length Mark    ..||iya Ai Length Mark
-        {0x0b62, 0x0b63},  // ||iya Vowel Sign Vocalic..||iya Vowel Sign Vocalic
-        {0x0b82, 0x0b82},  // Tamil Sign Anusvara     ..Tamil Sign Anusvara
-        {0x0bc0, 0x0bc0},  // Tamil Vowel Sign Ii     ..Tamil Vowel Sign Ii
-        {0x0bcd, 0x0bcd},  // Tamil Sign Virama       ..Tamil Sign Virama
-        {0x0c00, 0x0c00},  // Telugu Sign Combining Ca..Telugu Sign Combining Ca
-        {0x0c3e, 0x0c40},  // Telugu Vowel Sign Aa    ..Telugu Vowel Sign Ii
-        {0x0c46, 0x0c48},  // Telugu Vowel Sign E     ..Telugu Vowel Sign Ai
-        {0x0c4a, 0x0c4d},  // Telugu Vowel Sign O     ..Telugu Sign Virama
-        {0x0c55, 0x0c56},  // Telugu Length Mark      ..Telugu Ai Length Mark
-        {0x0c62, 0x0c63},  // Telugu Vowel Sign Vocali..Telugu Vowel Sign Vocali
-        {0x0c81, 0x0c81},  // Kannada Sign Candrabindu..Kannada Sign Candrabindu
-        {0x0cbc, 0x0cbc},  // Kannada Sign Nukta      ..Kannada Sign Nukta
-        {0x0cbf, 0x0cbf},  // Kannada Vowel Sign I    ..Kannada Vowel Sign I
-        {0x0cc6, 0x0cc6},  // Kannada Vowel Sign E    ..Kannada Vowel Sign E
-        {0x0ccc, 0x0ccd},  // Kannada Vowel Sign Au   ..Kannada Sign Virama
-        {0x0ce2, 0x0ce3},  // Kannada Vowel Sign Vocal..Kannada Vowel Sign Vocal
-        {0x0d01, 0x0d01},  // Malayalam Sign Candrabin..Malayalam Sign Candrabin
-        {0x0d41, 0x0d44},  // Malayalam Vowel Sign U  ..Malayalam Vowel Sign Voc
-        {0x0d4d, 0x0d4d},  // Malayalam Sign Virama   ..Malayalam Sign Virama
-        {0x0d62, 0x0d63},  // Malayalam Vowel Sign Voc..Malayalam Vowel Sign Voc
-        {0x0dca, 0x0dca},  // Sinhala Sign Al-lakuna  ..Sinhala Sign Al-lakuna
-        {0x0dd2, 0x0dd4},  // Sinhala Vowel Sign Ketti..Sinhala Vowel Sign Ketti
-        {0x0dd6, 0x0dd6},  // Sinhala Vowel Sign Diga ..Sinhala Vowel Sign Diga
-        {0x0e31, 0x0e31},  // Thai Character Mai Han-a..Thai Character Mai Han-a
-        {0x0e34, 0x0e3a},  // Thai Character Sara I   ..Thai Character Phinthu
-        {0x0e47, 0x0e4e},  // Thai Character Maitaikhu..Thai Character Yamakkan
-        {0x0eb1, 0x0eb1},  // Lao Vowel Sign Mai Kan  ..Lao Vowel Sign Mai Kan
-        {0x0eb4, 0x0eb9},  // Lao Vowel Sign I        ..Lao Vowel Sign Uu
-        {0x0ebb, 0x0ebc},  // Lao Vowel Sign Mai Kon  ..Lao Semivowel Sign Lo
-        {0x0ec8, 0x0ecd},  // Lao Tone Mai Ek         ..Lao Niggahita
-        {0x0f18, 0x0f19},  // Tibetan Astrological Sig..Tibetan Astrological Sig
-        {0x0f35, 0x0f35},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
-        {0x0f37, 0x0f37},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
-        {0x0f39, 0x0f39},  // Tibetan Mark Tsa -phru  ..Tibetan Mark Tsa -phru
-        {0x0f71, 0x0f7e},  // Tibetan Vowel Sign Aa   ..Tibetan Sign Rjes Su Nga
-        {0x0f80, 0x0f84},  // Tibetan Vowel Sign Rever..Tibetan Mark Halanta
-        {0x0f86, 0x0f87},  // Tibetan Sign Lci Rtags  ..Tibetan Sign Yang Rtags
-        {0x0f8d, 0x0f97},  // Tibetan Subjoined Sign L..Tibetan Subjoined Letter
-        {0x0f99, 0x0fbc},  // Tibetan Subjoined Letter..Tibetan Subjoined Letter
-        {0x0fc6, 0x0fc6},  // Tibetan Symbol Padma Gda..Tibetan Symbol Padma Gda
-        {0x102d, 0x1030},  // Myanmar Vowel Sign I    ..Myanmar Vowel Sign Uu
-        {0x1032, 0x1037},  // Myanmar Vowel Sign Ai   ..Myanmar Sign Dot Below
-        {0x1039, 0x103a},  // Myanmar Sign Virama     ..Myanmar Sign Asat
-        {0x103d, 0x103e},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
-        {0x1058, 0x1059},  // Myanmar Vowel Sign Vocal..Myanmar Vowel Sign Vocal
-        {0x105e, 0x1060},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
-        {0x1071, 0x1074},  // Myanmar Vowel Sign Geba ..Myanmar Vowel Sign Kayah
-        {0x1082, 0x1082},  // Myanmar Consonant Sign S..Myanmar Consonant Sign S
-        {0x1085, 0x1086},  // Myanmar Vowel Sign Shan ..Myanmar Vowel Sign Shan
-        {0x108d, 0x108d},  // Myanmar Sign Shan Counci..Myanmar Sign Shan Counci
-        {0x109d, 0x109d},  // Myanmar Vowel Sign Aiton..Myanmar Vowel Sign Aiton
-        {0x135d, 0x135f},  // Ethiopic Combining Gemin..Ethiopic Combining Gemin
-        {0x1712, 0x1714},  // Tagalog Vowel Sign I    ..Tagalog Sign Virama
-        {0x1732, 0x1734},  // Hanunoo Vowel Sign I    ..Hanunoo Sign Pamudpod
-        {0x1752, 0x1753},  // Buhid Vowel Sign I      ..Buhid Vowel Sign U
-        {0x1772, 0x1773},  // Tagbanwa Vowel Sign I   ..Tagbanwa Vowel Sign U
-        {0x17b4, 0x17b5},  // Khmer Vowel Inherent Aq ..Khmer Vowel Inherent Aa
-        {0x17b7, 0x17bd},  // Khmer Vowel Sign I      ..Khmer Vowel Sign Ua
-        {0x17c6, 0x17c6},  // Khmer Sign Nikahit      ..Khmer Sign Nikahit
-        {0x17c9, 0x17d3},  // Khmer Sign Muusikatoan  ..Khmer Sign Bathamasat
-        {0x17dd, 0x17dd},  // Khmer Sign Atthacan     ..Khmer Sign Atthacan
-        {0x180b, 0x180d},  // Mongolian Free Variation..Mongolian Free Variation
-        {0x1885, 0x1886},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
-        {0x18a9, 0x18a9},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
-        {0x1920, 0x1922},  // Limbu Vowel Sign A      ..Limbu Vowel Sign U
-        {0x1927, 0x1928},  // Limbu Vowel Sign E      ..Limbu Vowel Sign O
-        {0x1932, 0x1932},  // Limbu Small Letter Anusv..Limbu Small Letter Anusv
-        {0x1939, 0x193b},  // Limbu Sign Mukphreng    ..Limbu Sign Sa-i
-        {0x1a17, 0x1a18},  // Buginese Vowel Sign I   ..Buginese Vowel Sign U
-        {0x1a1b, 0x1a1b},  // Buginese Vowel Sign Ae  ..Buginese Vowel Sign Ae
-        {0x1a56, 0x1a56},  // Tai Tham Consonant Sign ..Tai Tham Consonant Sign
-        {0x1a58, 0x1a5e},  // Tai Tham Sign Mai Kang L..Tai Tham Consonant Sign
-        {0x1a60, 0x1a60},  // Tai Tham Sign Sakot     ..Tai Tham Sign Sakot
-        {0x1a62, 0x1a62},  // Tai Tham Vowel Sign Mai ..Tai Tham Vowel Sign Mai
-        {0x1a65, 0x1a6c},  // Tai Tham Vowel Sign I   ..Tai Tham Vowel Sign Oa B
-        {0x1a73, 0x1a7c},  // Tai Tham Vowel Sign Oa A..Tai Tham Sign Khuen-lue
-        {0x1a7f, 0x1a7f},  // Tai Tham Combining Crypt..Tai Tham Combining Crypt
-        {0x1ab0, 0x1abe},  // Combining Doubled Circum..Combining Parentheses Ov
-        {0x1b00, 0x1b03},  // Balinese Sign Ulu Ricem ..Balinese Sign Surang
-        {0x1b34, 0x1b34},  // Balinese Sign Rerekan   ..Balinese Sign Rerekan
-        {0x1b36, 0x1b3a},  // Balinese Vowel Sign Ulu ..Balinese Vowel Sign Ra R
-        {0x1b3c, 0x1b3c},  // Balinese Vowel Sign La L..Balinese Vowel Sign La L
-        {0x1b42, 0x1b42},  // Balinese Vowel Sign Pepe..Balinese Vowel Sign Pepe
-        {0x1b6b, 0x1b73},  // Balinese Musical Symbol ..Balinese Musical Symbol
-        {0x1b80, 0x1b81},  // Sundanese Sign Panyecek ..Sundanese Sign Panglayar
-        {0x1ba2, 0x1ba5},  // Sundanese Consonant Sign..Sundanese Vowel Sign Pan
-        {0x1ba8, 0x1ba9},  // Sundanese Vowel Sign Pam..Sundanese Vowel Sign Pan
-        {0x1bab, 0x1bad},  // Sundanese Sign Virama   ..Sundanese Consonant Sign
-        {0x1be6, 0x1be6},  // Batak Sign Tompi        ..Batak Sign Tompi
-        {0x1be8, 0x1be9},  // Batak Vowel Sign Pakpak ..Batak Vowel Sign Ee
-        {0x1bed, 0x1bed},  // Batak Vowel Sign Karo O ..Batak Vowel Sign Karo O
-        {0x1bef, 0x1bf1},  // Batak Vowel Sign U F|| S..Batak Consonant Sign H
-        {0x1c2c, 0x1c33},  // Lepcha Vowel Sign E     ..Lepcha Consonant Sign T
-        {0x1c36, 0x1c37},  // Lepcha Sign Ran         ..Lepcha Sign Nukta
-        {0x1cd0, 0x1cd2},  // Vedic Tone Karshana     ..Vedic Tone Prenkha
-        {0x1cd4, 0x1ce0},  // Vedic Sign Yajurvedic Mi..Vedic Tone Rigvedic Kash
-        {0x1ce2, 0x1ce8},  // Vedic Sign Visarga Svari..Vedic Sign Visarga Anuda
-        {0x1ced, 0x1ced},  // Vedic Sign Tiryak       ..Vedic Sign Tiryak
-        {0x1cf4, 0x1cf4},  // Vedic Tone Candra Above ..Vedic Tone Candra Above
-        {0x1cf8, 0x1cf9},  // Vedic Tone Ring Above   ..Vedic Tone Double Ring A
-        {0x1dc0, 0x1df5},  // Combining Dotted Grave A..Combining Up Tack Above
-        {0x1dfb, 0x1dff},  // (nil)                   ..Combining Right Arrowhea
-        {0x20d0, 0x20f0},  // Combining Left Harpoon A..Combining Asterisk Above
-        {0x2cef, 0x2cf1},  // Coptic Combining Ni Abov..Coptic Combining Spiritu
-        {0x2d7f, 0x2d7f},  // Tifinagh Consonant Joine..Tifinagh Consonant Joine
-        {0x2de0, 0x2dff},  // Combining Cyrillic Lette..Combining Cyrillic Lette
-        {0x302a, 0x302d},  // Ideographic Level Tone M..Ideographic Entering Ton
-        {0x3099, 0x309a},  // Combining Katakana-hirag..Combining Katakana-hirag
-        {0xa66f, 0xa672},  // Combining Cyrillic Vzmet..Combining Cyrillic Thous
-        {0xa674, 0xa67d},  // Combining Cyrillic Lette..Combining Cyrillic Payer
-        {0xa69e, 0xa69f},  // Combining Cyrillic Lette..Combining Cyrillic Lette
-        {0xa6f0, 0xa6f1},  // Bamum Combining Mark Koq..Bamum Combining Mark Tuk
-        {0xa802, 0xa802},  // Syloti Nagri Sign Dvisva..Syloti Nagri Sign Dvisva
-        {0xa806, 0xa806},  // Syloti Nagri Sign Hasant..Syloti Nagri Sign Hasant
-        {0xa80b, 0xa80b},  // Syloti Nagri Sign Anusva..Syloti Nagri Sign Anusva
-        {0xa825, 0xa826},  // Syloti Nagri Vowel Sign ..Syloti Nagri Vowel Sign
-        {0xa8c4, 0xa8c5},  // Saurashtra Sign Virama  ..
-        {0xa8e0, 0xa8f1},  // Combining Devanagari Dig..Combining Devanagari Sig
-        {0xa926, 0xa92d},  // Kayah Li Vowel Ue       ..Kayah Li Tone Calya Plop
-        {0xa947, 0xa951},  // Rejang Vowel Sign I     ..Rejang Consonant Sign R
-        {0xa980, 0xa982},  // Javanese Sign Panyangga ..Javanese Sign Layar
-        {0xa9b3, 0xa9b3},  // Javanese Sign Cecak Telu..Javanese Sign Cecak Telu
-        {0xa9b6, 0xa9b9},  // Javanese Vowel Sign Wulu..Javanese Vowel Sign Suku
-        {0xa9bc, 0xa9bc},  // Javanese Vowel Sign Pepe..Javanese Vowel Sign Pepe
-        {0xa9e5, 0xa9e5},  // Myanmar Sign Shan Saw   ..Myanmar Sign Shan Saw
-        {0xaa29, 0xaa2e},  // Cham Vowel Sign Aa      ..Cham Vowel Sign Oe
-        {0xaa31, 0xaa32},  // Cham Vowel Sign Au      ..Cham Vowel Sign Ue
-        {0xaa35, 0xaa36},  // Cham Consonant Sign La  ..Cham Consonant Sign Wa
-        {0xaa43, 0xaa43},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
-        {0xaa4c, 0xaa4c},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
-        {0xaa7c, 0xaa7c},  // Myanmar Sign Tai Laing T..Myanmar Sign Tai Laing T
-        {0xaab0, 0xaab0},  // Tai Viet Mai Kang       ..Tai Viet Mai Kang
-        {0xaab2, 0xaab4},  // Tai Viet Vowel I        ..Tai Viet Vowel U
-        {0xaab7, 0xaab8},  // Tai Viet Mai Khit       ..Tai Viet Vowel Ia
-        {0xaabe, 0xaabf},  // Tai Viet Vowel Am       ..Tai Viet Tone Mai Ek
-        {0xaac1, 0xaac1},  // Tai Viet Tone Mai Tho   ..Tai Viet Tone Mai Tho
-        {0xaaec, 0xaaed},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
-        {0xaaf6, 0xaaf6},  // Meetei Mayek Virama     ..Meetei Mayek Virama
-        {0xabe5, 0xabe5},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
-        {0xabe8, 0xabe8},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
-        {0xabed, 0xabed},  // Meetei Mayek Apun Iyek  ..Meetei Mayek Apun Iyek
-        {0xfb1e, 0xfb1e},  // Hebrew Point Judeo-spani..Hebrew Point Judeo-spani
-        {0xfe00, 0xfe0f},  // Variation Select||-1    ..Variation Select||-16
-        {0xfe20, 0xfe2f},  // Combining Ligature Left ..Combining Cyrillic Titlo
+        {0x00300, 0x0036f},  // Combining Grave Accent  ..Combining Latin Small Le
+        {0x00483, 0x00489},  // Combining Cyrillic Titlo..Combining Cyrillic Milli
+        {0x00591, 0x005bd},  // Hebrew Accent Etnahta   ..Hebrew Point Meteg
+        {0x005bf, 0x005bf},  // Hebrew Point Rafe       ..Hebrew Point Rafe
+        {0x005c1, 0x005c2},  // Hebrew Point Shin Dot   ..Hebrew Point Sin Dot
+        {0x005c4, 0x005c5},  // Hebrew Mark Upper Dot   ..Hebrew Mark Lower Dot
+        {0x005c7, 0x005c7},  // Hebrew Point Qamats Qata..Hebrew Point Qamats Qata
+        {0x00610, 0x0061a},  // Arabic Sign Sallallahou ..Arabic Small Kasra
+        {0x0064b, 0x0065f},  // Arabic Fathatan         ..Arabic Wavy Hamza Below
+        {0x00670, 0x00670},  // Arabic Letter Superscrip..Arabic Letter Superscrip
+        {0x006d6, 0x006dc},  // Arabic Small High Ligatu..Arabic Small High Seen
+        {0x006df, 0x006e4},  // Arabic Small High Rounde..Arabic Small High Madda
+        {0x006e7, 0x006e8},  // Arabic Small High Yeh   ..Arabic Small High Noon
+        {0x006ea, 0x006ed},  // Arabic Empty Centre Low ..Arabic Small Low Meem
+        {0x00711, 0x00711},  // Syriac Letter Superscrip..Syriac Letter Superscrip
+        {0x00730, 0x0074a},  // Syriac Pthaha Above     ..Syriac Barrekh
+        {0x007a6, 0x007b0},  // Thaana Abafili          ..Thaana Sukun
+        {0x007eb, 0x007f3},  // Nko Combining Short High..Nko Combining Double Dot
+        {0x007fd, 0x007fd},  // Nko Dantayalan          ..Nko Dantayalan
+        {0x00816, 0x00819},  // Samaritan Mark In       ..Samaritan Mark Dagesh
+        {0x0081b, 0x00823},  // Samaritan Mark Epentheti..Samaritan Vowel Sign A
+        {0x00825, 0x00827},  // Samaritan Vowel Sign Sho..Samaritan Vowel Sign U
+        {0x00829, 0x0082d},  // Samaritan Vowel Sign Lon..Samaritan Mark Nequdaa
+        {0x00859, 0x0085b},  // Mandaic Affrication Mark..Mandaic Gemination Mark
+        {0x008d3, 0x008e1},  // Arabic Small Low Waw    ..Arabic Small High Sign S
+        {0x008e3, 0x00902},  // Arabic Turned Damma Belo..Devanagari Sign Anusvara
+        {0x0093a, 0x0093a},  // Devanagari Vowel Sign Oe..Devanagari Vowel Sign Oe
+        {0x0093c, 0x0093c},  // Devanagari Sign Nukta   ..Devanagari Sign Nukta
+        {0x00941, 0x00948},  // Devanagari Vowel Sign U ..Devanagari Vowel Sign Ai
+        {0x0094d, 0x0094d},  // Devanagari Sign Virama  ..Devanagari Sign Virama
+        {0x00951, 0x00957},  // Devanagari Stress Sign U..Devanagari Vowel Sign Uu
+        {0x00962, 0x00963},  // Devanagari Vowel Sign Vo..Devanagari Vowel Sign Vo
+        {0x00981, 0x00981},  // Bengali Sign Candrabindu..Bengali Sign Candrabindu
+        {0x009bc, 0x009bc},  // Bengali Sign Nukta      ..Bengali Sign Nukta
+        {0x009c1, 0x009c4},  // Bengali Vowel Sign U    ..Bengali Vowel Sign Vocal
+        {0x009cd, 0x009cd},  // Bengali Sign Virama     ..Bengali Sign Virama
+        {0x009e2, 0x009e3},  // Bengali Vowel Sign Vocal..Bengali Vowel Sign Vocal
+        {0x009fe, 0x009fe},  // Bengali Sandhi Mark     ..Bengali Sandhi Mark
+        {0x00a01, 0x00a02},  // Gurmukhi Sign Adak Bindi..Gurmukhi Sign Bindi
+        {0x00a3c, 0x00a3c},  // Gurmukhi Sign Nukta     ..Gurmukhi Sign Nukta
+        {0x00a41, 0x00a42},  // Gurmukhi Vowel Sign U   ..Gurmukhi Vowel Sign Uu
+        {0x00a47, 0x00a48},  // Gurmukhi Vowel Sign Ee  ..Gurmukhi Vowel Sign Ai
+        {0x00a4b, 0x00a4d},  // Gurmukhi Vowel Sign Oo  ..Gurmukhi Sign Virama
+        {0x00a51, 0x00a51},  // Gurmukhi Sign Udaat     ..Gurmukhi Sign Udaat
+        {0x00a70, 0x00a71},  // Gurmukhi Tippi          ..Gurmukhi Addak
+        {0x00a75, 0x00a75},  // Gurmukhi Sign Yakash    ..Gurmukhi Sign Yakash
+        {0x00a81, 0x00a82},  // Gujarati Sign Candrabind..Gujarati Sign Anusvara
+        {0x00abc, 0x00abc},  // Gujarati Sign Nukta     ..Gujarati Sign Nukta
+        {0x00ac1, 0x00ac5},  // Gujarati Vowel Sign U   ..Gujarati Vowel Sign Cand
+        {0x00ac7, 0x00ac8},  // Gujarati Vowel Sign E   ..Gujarati Vowel Sign Ai
+        {0x00acd, 0x00acd},  // Gujarati Sign Virama    ..Gujarati Sign Virama
+        {0x00ae2, 0x00ae3},  // Gujarati Vowel Sign Voca..Gujarati Vowel Sign Voca
+        {0x00afa, 0x00aff},  // Gujarati Sign Sukun     ..Gujarati Sign Two-circle
+        {0x00b01, 0x00b01},  // Oriya Sign Candrabindu  ..Oriya Sign Candrabindu
+        {0x00b3c, 0x00b3c},  // Oriya Sign Nukta        ..Oriya Sign Nukta
+        {0x00b3f, 0x00b3f},  // Oriya Vowel Sign I      ..Oriya Vowel Sign I
+        {0x00b41, 0x00b44},  // Oriya Vowel Sign U      ..Oriya Vowel Sign Vocalic
+        {0x00b4d, 0x00b4d},  // Oriya Sign Virama       ..Oriya Sign Virama
+        {0x00b55, 0x00b56},  // (nil)                   ..Oriya Ai Length Mark
+        {0x00b62, 0x00b63},  // Oriya Vowel Sign Vocalic..Oriya Vowel Sign Vocalic
+        {0x00b82, 0x00b82},  // Tamil Sign Anusvara     ..Tamil Sign Anusvara
+        {0x00bc0, 0x00bc0},  // Tamil Vowel Sign Ii     ..Tamil Vowel Sign Ii
+        {0x00bcd, 0x00bcd},  // Tamil Sign Virama       ..Tamil Sign Virama
+        {0x00c00, 0x00c00},  // Telugu Sign Combining Ca..Telugu Sign Combining Ca
+        {0x00c04, 0x00c04},  // Telugu Sign Combining An..Telugu Sign Combining An
+        {0x00c3e, 0x00c40},  // Telugu Vowel Sign Aa    ..Telugu Vowel Sign Ii
+        {0x00c46, 0x00c48},  // Telugu Vowel Sign E     ..Telugu Vowel Sign Ai
+        {0x00c4a, 0x00c4d},  // Telugu Vowel Sign O     ..Telugu Sign Virama
+        {0x00c55, 0x00c56},  // Telugu Length Mark      ..Telugu Ai Length Mark
+        {0x00c62, 0x00c63},  // Telugu Vowel Sign Vocali..Telugu Vowel Sign Vocali
+        {0x00c81, 0x00c81},  // Kannada Sign Candrabindu..Kannada Sign Candrabindu
+        {0x00cbc, 0x00cbc},  // Kannada Sign Nukta      ..Kannada Sign Nukta
+        {0x00cbf, 0x00cbf},  // Kannada Vowel Sign I    ..Kannada Vowel Sign I
+        {0x00cc6, 0x00cc6},  // Kannada Vowel Sign E    ..Kannada Vowel Sign E
+        {0x00ccc, 0x00ccd},  // Kannada Vowel Sign Au   ..Kannada Sign Virama
+        {0x00ce2, 0x00ce3},  // Kannada Vowel Sign Vocal..Kannada Vowel Sign Vocal
+        {0x00d00, 0x00d01},  // Malayalam Sign Combining..Malayalam Sign Candrabin
+        {0x00d3b, 0x00d3c},  // Malayalam Sign Vertical ..Malayalam Sign Circular
+        {0x00d41, 0x00d44},  // Malayalam Vowel Sign U  ..Malayalam Vowel Sign Voc
+        {0x00d4d, 0x00d4d},  // Malayalam Sign Virama   ..Malayalam Sign Virama
+        {0x00d62, 0x00d63},  // Malayalam Vowel Sign Voc..Malayalam Vowel Sign Voc
+        {0x00d81, 0x00d81},  // (nil)                   ..(nil)
+        {0x00dca, 0x00dca},  // Sinhala Sign Al-lakuna  ..Sinhala Sign Al-lakuna
+        {0x00dd2, 0x00dd4},  // Sinhala Vowel Sign Ketti..Sinhala Vowel Sign Ketti
+        {0x00dd6, 0x00dd6},  // Sinhala Vowel Sign Diga ..Sinhala Vowel Sign Diga
+        {0x00e31, 0x00e31},  // Thai Character Mai Han-a..Thai Character Mai Han-a
+        {0x00e34, 0x00e3a},  // Thai Character Sara I   ..Thai Character Phinthu
+        {0x00e47, 0x00e4e},  // Thai Character Maitaikhu..Thai Character Yamakkan
+        {0x00eb1, 0x00eb1},  // Lao Vowel Sign Mai Kan  ..Lao Vowel Sign Mai Kan
+        {0x00eb4, 0x00ebc},  // Lao Vowel Sign I        ..Lao Semivowel Sign Lo
+        {0x00ec8, 0x00ecd},  // Lao Tone Mai Ek         ..Lao Niggahita
+        {0x00f18, 0x00f19},  // Tibetan Astrological Sig..Tibetan Astrological Sig
+        {0x00f35, 0x00f35},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
+        {0x00f37, 0x00f37},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
+        {0x00f39, 0x00f39},  // Tibetan Mark Tsa -phru  ..Tibetan Mark Tsa -phru
+        {0x00f71, 0x00f7e},  // Tibetan Vowel Sign Aa   ..Tibetan Sign Rjes Su Nga
+        {0x00f80, 0x00f84},  // Tibetan Vowel Sign Rever..Tibetan Mark Halanta
+        {0x00f86, 0x00f87},  // Tibetan Sign Lci Rtags  ..Tibetan Sign Yang Rtags
+        {0x00f8d, 0x00f97},  // Tibetan Subjoined Sign L..Tibetan Subjoined Letter
+        {0x00f99, 0x00fbc},  // Tibetan Subjoined Letter..Tibetan Subjoined Letter
+        {0x00fc6, 0x00fc6},  // Tibetan Symbol Padma Gda..Tibetan Symbol Padma Gda
+        {0x0102d, 0x01030},  // Myanmar Vowel Sign I    ..Myanmar Vowel Sign Uu
+        {0x01032, 0x01037},  // Myanmar Vowel Sign Ai   ..Myanmar Sign Dot Below
+        {0x01039, 0x0103a},  // Myanmar Sign Virama     ..Myanmar Sign Asat
+        {0x0103d, 0x0103e},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
+        {0x01058, 0x01059},  // Myanmar Vowel Sign Vocal..Myanmar Vowel Sign Vocal
+        {0x0105e, 0x01060},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
+        {0x01071, 0x01074},  // Myanmar Vowel Sign Geba ..Myanmar Vowel Sign Kayah
+        {0x01082, 0x01082},  // Myanmar Consonant Sign S..Myanmar Consonant Sign S
+        {0x01085, 0x01086},  // Myanmar Vowel Sign Shan ..Myanmar Vowel Sign Shan
+        {0x0108d, 0x0108d},  // Myanmar Sign Shan Counci..Myanmar Sign Shan Counci
+        {0x0109d, 0x0109d},  // Myanmar Vowel Sign Aiton..Myanmar Vowel Sign Aiton
+        {0x0135d, 0x0135f},  // Ethiopic Combining Gemin..Ethiopic Combining Gemin
+        {0x01712, 0x01714},  // Tagalog Vowel Sign I    ..Tagalog Sign Virama
+        {0x01732, 0x01734},  // Hanunoo Vowel Sign I    ..Hanunoo Sign Pamudpod
+        {0x01752, 0x01753},  // Buhid Vowel Sign I      ..Buhid Vowel Sign U
+        {0x01772, 0x01773},  // Tagbanwa Vowel Sign I   ..Tagbanwa Vowel Sign U
+        {0x017b4, 0x017b5},  // Khmer Vowel Inherent Aq ..Khmer Vowel Inherent Aa
+        {0x017b7, 0x017bd},  // Khmer Vowel Sign I      ..Khmer Vowel Sign Ua
+        {0x017c6, 0x017c6},  // Khmer Sign Nikahit      ..Khmer Sign Nikahit
+        {0x017c9, 0x017d3},  // Khmer Sign Muusikatoan  ..Khmer Sign Bathamasat
+        {0x017dd, 0x017dd},  // Khmer Sign Atthacan     ..Khmer Sign Atthacan
+        {0x0180b, 0x0180d},  // Mongolian Free Variation..Mongolian Free Variation
+        {0x01885, 0x01886},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
+        {0x018a9, 0x018a9},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
+        {0x01920, 0x01922},  // Limbu Vowel Sign A      ..Limbu Vowel Sign U
+        {0x01927, 0x01928},  // Limbu Vowel Sign E      ..Limbu Vowel Sign O
+        {0x01932, 0x01932},  // Limbu Small Letter Anusv..Limbu Small Letter Anusv
+        {0x01939, 0x0193b},  // Limbu Sign Mukphreng    ..Limbu Sign Sa-i
+        {0x01a17, 0x01a18},  // Buginese Vowel Sign I   ..Buginese Vowel Sign U
+        {0x01a1b, 0x01a1b},  // Buginese Vowel Sign Ae  ..Buginese Vowel Sign Ae
+        {0x01a56, 0x01a56},  // Tai Tham Consonant Sign ..Tai Tham Consonant Sign
+        {0x01a58, 0x01a5e},  // Tai Tham Sign Mai Kang L..Tai Tham Consonant Sign
+        {0x01a60, 0x01a60},  // Tai Tham Sign Sakot     ..Tai Tham Sign Sakot
+        {0x01a62, 0x01a62},  // Tai Tham Vowel Sign Mai ..Tai Tham Vowel Sign Mai
+        {0x01a65, 0x01a6c},  // Tai Tham Vowel Sign I   ..Tai Tham Vowel Sign Oa B
+        {0x01a73, 0x01a7c},  // Tai Tham Vowel Sign Oa A..Tai Tham Sign Khuen-lue
+        {0x01a7f, 0x01a7f},  // Tai Tham Combining Crypt..Tai Tham Combining Crypt
+        {0x01ab0, 0x01ac0},  // Combining Doubled Circum..(nil)
+        {0x01b00, 0x01b03},  // Balinese Sign Ulu Ricem ..Balinese Sign Surang
+        {0x01b34, 0x01b34},  // Balinese Sign Rerekan   ..Balinese Sign Rerekan
+        {0x01b36, 0x01b3a},  // Balinese Vowel Sign Ulu ..Balinese Vowel Sign Ra R
+        {0x01b3c, 0x01b3c},  // Balinese Vowel Sign La L..Balinese Vowel Sign La L
+        {0x01b42, 0x01b42},  // Balinese Vowel Sign Pepe..Balinese Vowel Sign Pepe
+        {0x01b6b, 0x01b73},  // Balinese Musical Symbol ..Balinese Musical Symbol
+        {0x01b80, 0x01b81},  // Sundanese Sign Panyecek ..Sundanese Sign Panglayar
+        {0x01ba2, 0x01ba5},  // Sundanese Consonant Sign..Sundanese Vowel Sign Pan
+        {0x01ba8, 0x01ba9},  // Sundanese Vowel Sign Pam..Sundanese Vowel Sign Pan
+        {0x01bab, 0x01bad},  // Sundanese Sign Virama   ..Sundanese Consonant Sign
+        {0x01be6, 0x01be6},  // Batak Sign Tompi        ..Batak Sign Tompi
+        {0x01be8, 0x01be9},  // Batak Vowel Sign Pakpak ..Batak Vowel Sign Ee
+        {0x01bed, 0x01bed},  // Batak Vowel Sign Karo O ..Batak Vowel Sign Karo O
+        {0x01bef, 0x01bf1},  // Batak Vowel Sign U For S..Batak Consonant Sign H
+        {0x01c2c, 0x01c33},  // Lepcha Vowel Sign E     ..Lepcha Consonant Sign T
+        {0x01c36, 0x01c37},  // Lepcha Sign Ran         ..Lepcha Sign Nukta
+        {0x01cd0, 0x01cd2},  // Vedic Tone Karshana     ..Vedic Tone Prenkha
+        {0x01cd4, 0x01ce0},  // Vedic Sign Yajurvedic Mi..Vedic Tone Rigvedic Kash
+        {0x01ce2, 0x01ce8},  // Vedic Sign Visarga Svari..Vedic Sign Visarga Anuda
+        {0x01ced, 0x01ced},  // Vedic Sign Tiryak       ..Vedic Sign Tiryak
+        {0x01cf4, 0x01cf4},  // Vedic Tone Candra Above ..Vedic Tone Candra Above
+        {0x01cf8, 0x01cf9},  // Vedic Tone Ring Above   ..Vedic Tone Double Ring A
+        {0x01dc0, 0x01df9},  // Combining Dotted Grave A..Combining Wide Inverted
+        {0x01dfb, 0x01dff},  // Combining Deletion Mark ..Combining Right Arrowhea
+        {0x020d0, 0x020f0},  // Combining Left Harpoon A..Combining Asterisk Above
+        {0x02cef, 0x02cf1},  // Coptic Combining Ni Abov..Coptic Combining Spiritu
+        {0x02d7f, 0x02d7f},  // Tifinagh Consonant Joine..Tifinagh Consonant Joine
+        {0x02de0, 0x02dff},  // Combining Cyrillic Lette..Combining Cyrillic Lette
+        {0x0302a, 0x0302d},  // Ideographic Level Tone M..Ideographic Entering Ton
+        {0x03099, 0x0309a},  // Combining Katakana-hirag..Combining Katakana-hirag
+        {0x0a66f, 0x0a672},  // Combining Cyrillic Vzmet..Combining Cyrillic Thous
+        {0x0a674, 0x0a67d},  // Combining Cyrillic Lette..Combining Cyrillic Payer
+        {0x0a69e, 0x0a69f},  // Combining Cyrillic Lette..Combining Cyrillic Lette
+        {0x0a6f0, 0x0a6f1},  // Bamum Combining Mark Koq..Bamum Combining Mark Tuk
+        {0x0a802, 0x0a802},  // Syloti Nagri Sign Dvisva..Syloti Nagri Sign Dvisva
+        {0x0a806, 0x0a806},  // Syloti Nagri Sign Hasant..Syloti Nagri Sign Hasant
+        {0x0a80b, 0x0a80b},  // Syloti Nagri Sign Anusva..Syloti Nagri Sign Anusva
+        {0x0a825, 0x0a826},  // Syloti Nagri Vowel Sign ..Syloti Nagri Vowel Sign
+        {0x0a82c, 0x0a82c},  // (nil)                   ..(nil)
+        {0x0a8c4, 0x0a8c5},  // Saurashtra Sign Virama  ..Saurashtra Sign Candrabi
+        {0x0a8e0, 0x0a8f1},  // Combining Devanagari Dig..Combining Devanagari Sig
+        {0x0a8ff, 0x0a8ff},  // Devanagari Vowel Sign Ay..Devanagari Vowel Sign Ay
+        {0x0a926, 0x0a92d},  // Kayah Li Vowel Ue       ..Kayah Li Tone Calya Plop
+        {0x0a947, 0x0a951},  // Rejang Vowel Sign I     ..Rejang Consonant Sign R
+        {0x0a980, 0x0a982},  // Javanese Sign Panyangga ..Javanese Sign Layar
+        {0x0a9b3, 0x0a9b3},  // Javanese Sign Cecak Telu..Javanese Sign Cecak Telu
+        {0x0a9b6, 0x0a9b9},  // Javanese Vowel Sign Wulu..Javanese Vowel Sign Suku
+        {0x0a9bc, 0x0a9bd},  // Javanese Vowel Sign Pepe..Javanese Consonant Sign
+        {0x0a9e5, 0x0a9e5},  // Myanmar Sign Shan Saw   ..Myanmar Sign Shan Saw
+        {0x0aa29, 0x0aa2e},  // Cham Vowel Sign Aa      ..Cham Vowel Sign Oe
+        {0x0aa31, 0x0aa32},  // Cham Vowel Sign Au      ..Cham Vowel Sign Ue
+        {0x0aa35, 0x0aa36},  // Cham Consonant Sign La  ..Cham Consonant Sign Wa
+        {0x0aa43, 0x0aa43},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
+        {0x0aa4c, 0x0aa4c},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
+        {0x0aa7c, 0x0aa7c},  // Myanmar Sign Tai Laing T..Myanmar Sign Tai Laing T
+        {0x0aab0, 0x0aab0},  // Tai Viet Mai Kang       ..Tai Viet Mai Kang
+        {0x0aab2, 0x0aab4},  // Tai Viet Vowel I        ..Tai Viet Vowel U
+        {0x0aab7, 0x0aab8},  // Tai Viet Mai Khit       ..Tai Viet Vowel Ia
+        {0x0aabe, 0x0aabf},  // Tai Viet Vowel Am       ..Tai Viet Tone Mai Ek
+        {0x0aac1, 0x0aac1},  // Tai Viet Tone Mai Tho   ..Tai Viet Tone Mai Tho
+        {0x0aaec, 0x0aaed},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
+        {0x0aaf6, 0x0aaf6},  // Meetei Mayek Virama     ..Meetei Mayek Virama
+        {0x0abe5, 0x0abe5},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
+        {0x0abe8, 0x0abe8},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
+        {0x0abed, 0x0abed},  // Meetei Mayek Apun Iyek  ..Meetei Mayek Apun Iyek
+        {0x0fb1e, 0x0fb1e},  // Hebrew Point Judeo-spani..Hebrew Point Judeo-spani
+        {0x0fe00, 0x0fe0f},  // Variation Selector-1    ..Variation Selector-16
+        {0x0fe20, 0x0fe2f},  // Combining Ligature Left ..Combining Cyrillic Titlo
         {0x101fd, 0x101fd},  // Phaistos Disc Sign Combi..Phaistos Disc Sign Combi
         {0x102e0, 0x102e0},  // Coptic Epact Thousands M..Coptic Epact Thousands M
         {0x10376, 0x1037a},  // Combining Old Permic Let..Combining Old Permic Let
@@ -219,6 +232,9 @@ public final class WcWidth {
         {0x10a38, 0x10a3a},  // Kharoshthi Sign Bar Abov..Kharoshthi Sign Dot Belo
         {0x10a3f, 0x10a3f},  // Kharoshthi Virama       ..Kharoshthi Virama
         {0x10ae5, 0x10ae6},  // Manichaean Abbreviation ..Manichaean Abbreviation
+        {0x10d24, 0x10d27},  // Hanifi Rohingya Sign Har..Hanifi Rohingya Sign Tas
+        {0x10eab, 0x10eac},  // (nil)                   ..(nil)
+        {0x10f46, 0x10f50},  // Sogdian Combining Dot Be..Sogdian Combining Stroke
         {0x11001, 0x11001},  // Brahmi Sign Anusvara    ..Brahmi Sign Anusvara
         {0x11038, 0x11046},  // Brahmi Vowel Sign Aa    ..Brahmi Virama
         {0x1107f, 0x11081},  // Brahmi Number Joiner    ..Kaithi Sign Anusvara
@@ -230,23 +246,25 @@ public final class WcWidth {
         {0x11173, 0x11173},  // Mahajani Sign Nukta     ..Mahajani Sign Nukta
         {0x11180, 0x11181},  // Sharada Sign Candrabindu..Sharada Sign Anusvara
         {0x111b6, 0x111be},  // Sharada Vowel Sign U    ..Sharada Vowel Sign O
-        {0x111ca, 0x111cc},  // Sharada Sign Nukta      ..Sharada Extra Sh||t Vowe
+        {0x111c9, 0x111cc},  // Sharada Sandhi Mark     ..Sharada Extra Short Vowe
+        {0x111cf, 0x111cf},  // (nil)                   ..(nil)
         {0x1122f, 0x11231},  // Khojki Vowel Sign U     ..Khojki Vowel Sign Ai
         {0x11234, 0x11234},  // Khojki Sign Anusvara    ..Khojki Sign Anusvara
         {0x11236, 0x11237},  // Khojki Sign Nukta       ..Khojki Sign Shadda
-        {0x1123e, 0x1123e},  // (nil)                   ..
+        {0x1123e, 0x1123e},  // Khojki Sign Sukun       ..Khojki Sign Sukun
         {0x112df, 0x112df},  // Khudawadi Sign Anusvara ..Khudawadi Sign Anusvara
         {0x112e3, 0x112ea},  // Khudawadi Vowel Sign U  ..Khudawadi Sign Virama
         {0x11300, 0x11301},  // Grantha Sign Combining A..Grantha Sign Candrabindu
-        {0x1133c, 0x1133c},  // Grantha Sign Nukta      ..Grantha Sign Nukta
+        {0x1133b, 0x1133c},  // Combining Bindu Below   ..Grantha Sign Nukta
         {0x11340, 0x11340},  // Grantha Vowel Sign Ii   ..Grantha Vowel Sign Ii
         {0x11366, 0x1136c},  // Combining Grantha Digit ..Combining Grantha Digit
         {0x11370, 0x11374},  // Combining Grantha Letter..Combining Grantha Letter
-        {0x11438, 0x1143f},  // (nil)                   ..
-        {0x11442, 0x11444},  // (nil)                   ..
-        {0x11446, 0x11446},  // (nil)                   ..
+        {0x11438, 0x1143f},  // Newa Vowel Sign U       ..Newa Vowel Sign Ai
+        {0x11442, 0x11444},  // Newa Sign Virama        ..Newa Sign Anusvara
+        {0x11446, 0x11446},  // Newa Sign Nukta         ..Newa Sign Nukta
+        {0x1145e, 0x1145e},  // Newa Sandhi Mark        ..Newa Sandhi Mark
         {0x114b3, 0x114b8},  // Tirhuta Vowel Sign U    ..Tirhuta Vowel Sign Vocal
-        {0x114ba, 0x114ba},  // Tirhuta Vowel Sign Sh||t..Tirhuta Vowel Sign Sh||t
+        {0x114ba, 0x114ba},  // Tirhuta Vowel Sign Short..Tirhuta Vowel Sign Short
         {0x114bf, 0x114c0},  // Tirhuta Sign Candrabindu..Tirhuta Sign Anusvara
         {0x114c2, 0x114c3},  // Tirhuta Sign Virama     ..Tirhuta Sign Nukta
         {0x115b2, 0x115b5},  // Siddham Vowel Sign U    ..Siddham Vowel Sign Vocal
@@ -263,16 +281,43 @@ public final class WcWidth {
         {0x1171d, 0x1171f},  // Ahom Consonant Sign Medi..Ahom Consonant Sign Medi
         {0x11722, 0x11725},  // Ahom Vowel Sign I       ..Ahom Vowel Sign Uu
         {0x11727, 0x1172b},  // Ahom Vowel Sign Aw      ..Ahom Sign Killer
-        {0x11c30, 0x11c36},  // (nil)                   ..
-        {0x11c38, 0x11c3d},  // (nil)                   ..
-        {0x11c3f, 0x11c3f},  // (nil)                   ..
-        {0x11c92, 0x11ca7},  // (nil)                   ..
-        {0x11caa, 0x11cb0},  // (nil)                   ..
-        {0x11cb2, 0x11cb3},  // (nil)                   ..
-        {0x11cb5, 0x11cb6},  // (nil)                   ..
+        {0x1182f, 0x11837},  // Dogra Vowel Sign U      ..Dogra Sign Anusvara
+        {0x11839, 0x1183a},  // Dogra Sign Virama       ..Dogra Sign Nukta
+        {0x1193b, 0x1193c},  // (nil)                   ..(nil)
+        {0x1193e, 0x1193e},  // (nil)                   ..(nil)
+        {0x11943, 0x11943},  // (nil)                   ..(nil)
+        {0x119d4, 0x119d7},  // Nandinagari Vowel Sign U..Nandinagari Vowel Sign V
+        {0x119da, 0x119db},  // Nandinagari Vowel Sign E..Nandinagari Vowel Sign A
+        {0x119e0, 0x119e0},  // Nandinagari Sign Virama ..Nandinagari Sign Virama
+        {0x11a01, 0x11a0a},  // Zanabazar Square Vowel S..Zanabazar Square Vowel L
+        {0x11a33, 0x11a38},  // Zanabazar Square Final C..Zanabazar Square Sign An
+        {0x11a3b, 0x11a3e},  // Zanabazar Square Cluster..Zanabazar Square Cluster
+        {0x11a47, 0x11a47},  // Zanabazar Square Subjoin..Zanabazar Square Subjoin
+        {0x11a51, 0x11a56},  // Soyombo Vowel Sign I    ..Soyombo Vowel Sign Oe
+        {0x11a59, 0x11a5b},  // Soyombo Vowel Sign Vocal..Soyombo Vowel Length Mar
+        {0x11a8a, 0x11a96},  // Soyombo Final Consonant ..Soyombo Sign Anusvara
+        {0x11a98, 0x11a99},  // Soyombo Gemination Mark ..Soyombo Subjoiner
+        {0x11c30, 0x11c36},  // Bhaiksuki Vowel Sign I  ..Bhaiksuki Vowel Sign Voc
+        {0x11c38, 0x11c3d},  // Bhaiksuki Vowel Sign E  ..Bhaiksuki Sign Anusvara
+        {0x11c3f, 0x11c3f},  // Bhaiksuki Sign Virama   ..Bhaiksuki Sign Virama
+        {0x11c92, 0x11ca7},  // Marchen Subjoined Letter..Marchen Subjoined Letter
+        {0x11caa, 0x11cb0},  // Marchen Subjoined Letter..Marchen Vowel Sign Aa
+        {0x11cb2, 0x11cb3},  // Marchen Vowel Sign U    ..Marchen Vowel Sign E
+        {0x11cb5, 0x11cb6},  // Marchen Sign Anusvara   ..Marchen Sign Candrabindu
+        {0x11d31, 0x11d36},  // Masaram Gondi Vowel Sign..Masaram Gondi Vowel Sign
+        {0x11d3a, 0x11d3a},  // Masaram Gondi Vowel Sign..Masaram Gondi Vowel Sign
+        {0x11d3c, 0x11d3d},  // Masaram Gondi Vowel Sign..Masaram Gondi Vowel Sign
+        {0x11d3f, 0x11d45},  // Masaram Gondi Vowel Sign..Masaram Gondi Virama
+        {0x11d47, 0x11d47},  // Masaram Gondi Ra-kara   ..Masaram Gondi Ra-kara
+        {0x11d90, 0x11d91},  // Gunjala Gondi Vowel Sign..Gunjala Gondi Vowel Sign
+        {0x11d95, 0x11d95},  // Gunjala Gondi Sign Anusv..Gunjala Gondi Sign Anusv
+        {0x11d97, 0x11d97},  // Gunjala Gondi Virama    ..Gunjala Gondi Virama
+        {0x11ef3, 0x11ef4},  // Makasar Vowel Sign I    ..Makasar Vowel Sign U
         {0x16af0, 0x16af4},  // Bassa Vah Combining High..Bassa Vah Combining High
         {0x16b30, 0x16b36},  // Pahawh Hmong Mark Cim Tu..Pahawh Hmong Mark Cim Ta
+        {0x16f4f, 0x16f4f},  // Miao Sign Consonant Modi..Miao Sign Consonant Modi
         {0x16f8f, 0x16f92},  // Miao Tone Right         ..Miao Tone Below
+        {0x16fe4, 0x16fe4},  // (nil)                   ..(nil)
         {0x1bc9d, 0x1bc9e},  // Duployan Thick Letter Se..Duployan Double Mark
         {0x1d167, 0x1d169},  // Musical Symbol Combining..Musical Symbol Combining
         {0x1d17b, 0x1d182},  // Musical Symbol Combining..Musical Symbol Combining
@@ -285,97 +330,103 @@ public final class WcWidth {
         {0x1da84, 0x1da84},  // Signwriting Location Hea..Signwriting Location Hea
         {0x1da9b, 0x1da9f},  // Signwriting Fill Modifie..Signwriting Fill Modifie
         {0x1daa1, 0x1daaf},  // Signwriting Rotation Mod..Signwriting Rotation Mod
-        {0x1e000, 0x1e006},  // (nil)                   ..
-        {0x1e008, 0x1e018},  // (nil)                   ..
-        {0x1e01b, 0x1e021},  // (nil)                   ..
-        {0x1e023, 0x1e024},  // (nil)                   ..
-        {0x1e026, 0x1e02a},  // (nil)                   ..
+        {0x1e000, 0x1e006},  // Combining Glagolitic Let..Combining Glagolitic Let
+        {0x1e008, 0x1e018},  // Combining Glagolitic Let..Combining Glagolitic Let
+        {0x1e01b, 0x1e021},  // Combining Glagolitic Let..Combining Glagolitic Let
+        {0x1e023, 0x1e024},  // Combining Glagolitic Let..Combining Glagolitic Let
+        {0x1e026, 0x1e02a},  // Combining Glagolitic Let..Combining Glagolitic Let
+        {0x1e130, 0x1e136},  // Nyiakeng Puachue Hmong T..Nyiakeng Puachue Hmong T
+        {0x1e2ec, 0x1e2ef},  // Wancho Tone Tup         ..Wancho Tone Koini
         {0x1e8d0, 0x1e8d6},  // Mende Kikakui Combining ..Mende Kikakui Combining
-        {0x1e944, 0x1e94a},  // (nil)                   ..
-        {0xe0100, 0xe01ef},  // Variation Select||-17   ..Variation Select||-256
+        {0x1e944, 0x1e94a},  // Adlam Alif Lengthener   ..Adlam Nukta
+        {0xe0100, 0xe01ef},  // Variation Selector-17   ..Variation Selector-256
     };
 
     // https://github.com/jquast/wcwidth/blob/master/wcwidth/table_wide.py
-    // at commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
+    // at commit b29897e5a1b403a0e36f7fc991614981cbc42475 (2020-07-14):
     private static final int[][] WIDE_EASTASIAN = {
-        {0x1100, 0x115f},  // Hangul Choseong Kiyeok  ..Hangul Choseong Filler
-        {0x231a, 0x231b},  // Watch                   ..Hourglass
-        {0x2329, 0x232a},  // Left-pointing Angle Brac..Right-pointing Angle Bra
-        {0x23e9, 0x23ec},  // Black Right-pointing Dou..Black Down-pointing Doub
-        {0x23f0, 0x23f0},  // Alarm Clock             ..Alarm Clock
-        {0x23f3, 0x23f3},  // Hourglass With Flowing S..Hourglass With Flowing S
-        {0x25fd, 0x25fe},  // White Medium Small Squar..Black Medium Small Squar
-        {0x2614, 0x2615},  // Umbrella With Rain Drops..Hot Beverage
-        {0x2648, 0x2653},  // Aries                   ..Pisces
-        {0x267f, 0x267f},  // Wheelchair Symbol       ..Wheelchair Symbol
-        {0x2693, 0x2693},  // Anch||                  ..Anch||
-        {0x26a1, 0x26a1},  // High Voltage Sign       ..High Voltage Sign
-        {0x26aa, 0x26ab},  // Medium White Circle     ..Medium Black Circle
-        {0x26bd, 0x26be},  // Soccer Ball             ..Baseball
-        {0x26c4, 0x26c5},  // Snowman Without Snow    ..Sun Behind Cloud
-        {0x26ce, 0x26ce},  // Ophiuchus               ..Ophiuchus
-        {0x26d4, 0x26d4},  // No Entry                ..No Entry
-        {0x26ea, 0x26ea},  // Church                  ..Church
-        {0x26f2, 0x26f3},  // Fountain                ..Flag In Hole
-        {0x26f5, 0x26f5},  // Sailboat                ..Sailboat
-        {0x26fa, 0x26fa},  // Tent                    ..Tent
-        {0x26fd, 0x26fd},  // Fuel Pump               ..Fuel Pump
-        {0x2705, 0x2705},  // White Heavy Check Mark  ..White Heavy Check Mark
-        {0x270a, 0x270b},  // Raised Fist             ..Raised Hand
-        {0x2728, 0x2728},  // Sparkles                ..Sparkles
-        {0x274c, 0x274c},  // Cross Mark              ..Cross Mark
-        {0x274e, 0x274e},  // Negative Squared Cross M..Negative Squared Cross M
-        {0x2753, 0x2755},  // Black Question Mark ||na..White Exclamation Mark O
-        {0x2757, 0x2757},  // Heavy Exclamation Mark S..Heavy Exclamation Mark S
-        {0x2795, 0x2797},  // Heavy Plus Sign         ..Heavy Division Sign
-        {0x27b0, 0x27b0},  // Curly Loop              ..Curly Loop
-        {0x27bf, 0x27bf},  // Double Curly Loop       ..Double Curly Loop
-        {0x2b1b, 0x2b1c},  // Black Large Square      ..White Large Square
-        {0x2b50, 0x2b50},  // White Medium Star       ..White Medium Star
-        {0x2b55, 0x2b55},  // Heavy Large Circle      ..Heavy Large Circle
-        {0x2e80, 0x2e99},  // Cjk Radical Repeat      ..Cjk Radical Rap
-        {0x2e9b, 0x2ef3},  // Cjk Radical Choke       ..Cjk Radical C-simplified
-        {0x2f00, 0x2fd5},  // Kangxi Radical One      ..Kangxi Radical Flute
-        {0x2ff0, 0x2ffb},  // Ideographic Description ..Ideographic Description
-        {0x3000, 0x303e},  // Ideographic Space       ..Ideographic Variation In
-        {0x3041, 0x3096},  // Hiragana Letter Small A ..Hiragana Letter Small Ke
-        {0x3099, 0x30ff},  // Combining Katakana-hirag..Katakana Digraph Koto
-        {0x3105, 0x312d},  // Bopomofo Letter B       ..Bopomofo Letter Ih
-        {0x3131, 0x318e},  // Hangul Letter Kiyeok    ..Hangul Letter Araeae
-        {0x3190, 0x31ba},  // Ideographic Annotation L..Bopomofo Letter Zy
-        {0x31c0, 0x31e3},  // Cjk Stroke T            ..Cjk Stroke Q
-        {0x31f0, 0x321e},  // Katakana Letter Small Ku..Parenthesized K||ean Cha
-        {0x3220, 0x3247},  // Parenthesized Ideograph ..Circled Ideograph Koto
-        {0x3250, 0x32fe},  // Partnership Sign        ..Circled Katakana Wo
-        {0x3300, 0x4dbf},  // Square Apaato           ..
-        {0x4e00, 0xa48c},  // Cjk Unified Ideograph-4e..Yi Syllable Yyr
-        {0xa490, 0xa4c6},  // Yi Radical Qot          ..Yi Radical Ke
-        {0xa960, 0xa97c},  // Hangul Choseong Tikeut-m..Hangul Choseong Ssangyeo
-        {0xac00, 0xd7a3},  // Hangul Syllable Ga      ..Hangul Syllable Hih
-        {0xf900, 0xfaff},  // Cjk Compatibility Ideogr..
-        {0xfe10, 0xfe19},  // Presentation F||m F|| Ve..Presentation F||m F|| Ve
-        {0xfe30, 0xfe52},  // Presentation F||m F|| Ve..Small Full Stop
-        {0xfe54, 0xfe66},  // Small Semicolon         ..Small Equals Sign
-        {0xfe68, 0xfe6b},  // Small Reverse Solidus   ..Small Commercial At
-        {0xff01, 0xff60},  // Fullwidth Exclamation Ma..Fullwidth Right White Pa
-        {0xffe0, 0xffe6},  // Fullwidth Cent Sign     ..Fullwidth Won Sign
-        {0x16fe0, 0x16fe0},  // (nil)                   ..
-        {0x17000, 0x187ec},  // (nil)                   ..
-        {0x18800, 0x18af2},  // (nil)                   ..
-        {0x1b000, 0x1b001},  // Katakana Letter Archaic ..Hiragana Letter Archaic
+        {0x01100, 0x0115f},  // Hangul Choseong Kiyeok  ..Hangul Choseong Filler
+        {0x0231a, 0x0231b},  // Watch                   ..Hourglass
+        {0x02329, 0x0232a},  // Left-pointing Angle Brac..Right-pointing Angle Bra
+        {0x023e9, 0x023ec},  // Black Right-pointing Dou..Black Down-pointing Doub
+        {0x023f0, 0x023f0},  // Alarm Clock             ..Alarm Clock
+        {0x023f3, 0x023f3},  // Hourglass With Flowing S..Hourglass With Flowing S
+        {0x025fd, 0x025fe},  // White Medium Small Squar..Black Medium Small Squar
+        {0x02614, 0x02615},  // Umbrella With Rain Drops..Hot Beverage
+        {0x02648, 0x02653},  // Aries                   ..Pisces
+        {0x0267f, 0x0267f},  // Wheelchair Symbol       ..Wheelchair Symbol
+        {0x02693, 0x02693},  // Anchor                  ..Anchor
+        {0x026a1, 0x026a1},  // High Voltage Sign       ..High Voltage Sign
+        {0x026aa, 0x026ab},  // Medium White Circle     ..Medium Black Circle
+        {0x026bd, 0x026be},  // Soccer Ball             ..Baseball
+        {0x026c4, 0x026c5},  // Snowman Without Snow    ..Sun Behind Cloud
+        {0x026ce, 0x026ce},  // Ophiuchus               ..Ophiuchus
+        {0x026d4, 0x026d4},  // No Entry                ..No Entry
+        {0x026ea, 0x026ea},  // Church                  ..Church
+        {0x026f2, 0x026f3},  // Fountain                ..Flag In Hole
+        {0x026f5, 0x026f5},  // Sailboat                ..Sailboat
+        {0x026fa, 0x026fa},  // Tent                    ..Tent
+        {0x026fd, 0x026fd},  // Fuel Pump               ..Fuel Pump
+        {0x02705, 0x02705},  // White Heavy Check Mark  ..White Heavy Check Mark
+        {0x0270a, 0x0270b},  // Raised Fist             ..Raised Hand
+        {0x02728, 0x02728},  // Sparkles                ..Sparkles
+        {0x0274c, 0x0274c},  // Cross Mark              ..Cross Mark
+        {0x0274e, 0x0274e},  // Negative Squared Cross M..Negative Squared Cross M
+        {0x02753, 0x02755},  // Black Question Mark Orna..White Exclamation Mark O
+        {0x02757, 0x02757},  // Heavy Exclamation Mark S..Heavy Exclamation Mark S
+        {0x02795, 0x02797},  // Heavy Plus Sign         ..Heavy Division Sign
+        {0x027b0, 0x027b0},  // Curly Loop              ..Curly Loop
+        {0x027bf, 0x027bf},  // Double Curly Loop       ..Double Curly Loop
+        {0x02b1b, 0x02b1c},  // Black Large Square      ..White Large Square
+        {0x02b50, 0x02b50},  // White Medium Star       ..White Medium Star
+        {0x02b55, 0x02b55},  // Heavy Large Circle      ..Heavy Large Circle
+        {0x02e80, 0x02e99},  // Cjk Radical Repeat      ..Cjk Radical Rap
+        {0x02e9b, 0x02ef3},  // Cjk Radical Choke       ..Cjk Radical C-simplified
+        {0x02f00, 0x02fd5},  // Kangxi Radical One      ..Kangxi Radical Flute
+        {0x02ff0, 0x02ffb},  // Ideographic Description ..Ideographic Description
+        {0x03000, 0x0303e},  // Ideographic Space       ..Ideographic Variation In
+        {0x03041, 0x03096},  // Hiragana Letter Small A ..Hiragana Letter Small Ke
+        {0x03099, 0x030ff},  // Combining Katakana-hirag..Katakana Digraph Koto
+        {0x03105, 0x0312f},  // Bopomofo Letter B       ..Bopomofo Letter Nn
+        {0x03131, 0x0318e},  // Hangul Letter Kiyeok    ..Hangul Letter Araeae
+        {0x03190, 0x031e3},  // Ideographic Annotation L..Cjk Stroke Q
+        {0x031f0, 0x0321e},  // Katakana Letter Small Ku..Parenthesized Korean Cha
+        {0x03220, 0x03247},  // Parenthesized Ideograph ..Circled Ideograph Koto
+        {0x03250, 0x04dbf},  // Partnership Sign        ..(nil)
+        {0x04e00, 0x0a48c},  // Cjk Unified Ideograph-4e..Yi Syllable Yyr
+        {0x0a490, 0x0a4c6},  // Yi Radical Qot          ..Yi Radical Ke
+        {0x0a960, 0x0a97c},  // Hangul Choseong Tikeut-m..Hangul Choseong Ssangyeo
+        {0x0ac00, 0x0d7a3},  // Hangul Syllable Ga      ..Hangul Syllable Hih
+        {0x0f900, 0x0faff},  // Cjk Compatibility Ideogr..(nil)
+        {0x0fe10, 0x0fe19},  // Presentation Form For Ve..Presentation Form For Ve
+        {0x0fe30, 0x0fe52},  // Presentation Form For Ve..Small Full Stop
+        {0x0fe54, 0x0fe66},  // Small Semicolon         ..Small Equals Sign
+        {0x0fe68, 0x0fe6b},  // Small Reverse Solidus   ..Small Commercial At
+        {0x0ff01, 0x0ff60},  // Fullwidth Exclamation Ma..Fullwidth Right White Pa
+        {0x0ffe0, 0x0ffe6},  // Fullwidth Cent Sign     ..Fullwidth Won Sign
+        {0x16fe0, 0x16fe4},  // Tangut Iteration Mark   ..(nil)
+        {0x16ff0, 0x16ff1},  // (nil)                   ..(nil)
+        {0x17000, 0x187f7},  // (nil)                   ..(nil)
+        {0x18800, 0x18cd5},  // Tangut Component-001    ..(nil)
+        {0x18d00, 0x18d08},  // (nil)                   ..(nil)
+        {0x1b000, 0x1b11e},  // Katakana Letter Archaic ..Hentaigana Letter N-mu-m
+        {0x1b150, 0x1b152},  // Hiragana Letter Small Wi..Hiragana Letter Small Wo
+        {0x1b164, 0x1b167},  // Katakana Letter Small Wi..Katakana Letter Small N
+        {0x1b170, 0x1b2fb},  // Nushu Character-1b170   ..Nushu Character-1b2fb
         {0x1f004, 0x1f004},  // Mahjong Tile Red Dragon ..Mahjong Tile Red Dragon
         {0x1f0cf, 0x1f0cf},  // Playing Card Black Joker..Playing Card Black Joker
         {0x1f18e, 0x1f18e},  // Negative Squared Ab     ..Negative Squared Ab
         {0x1f191, 0x1f19a},  // Squared Cl              ..Squared Vs
         {0x1f200, 0x1f202},  // Square Hiragana Hoka    ..Squared Katakana Sa
-        {0x1f210, 0x1f23b},  // Squared Cjk Unified Ideo..
-        {0x1f240, 0x1f248},  // T||toise Shell Bracketed..T||toise Shell Bracketed
+        {0x1f210, 0x1f23b},  // Squared Cjk Unified Ideo..Squared Cjk Unified Ideo
+        {0x1f240, 0x1f248},  // Tortoise Shell Bracketed..Tortoise Shell Bracketed
         {0x1f250, 0x1f251},  // Circled Ideograph Advant..Circled Ideograph Accept
+        {0x1f260, 0x1f265},  // Rounded Symbol For Fu   ..Rounded Symbol For Cai
         {0x1f300, 0x1f320},  // Cyclone                 ..Shooting Star
         {0x1f32d, 0x1f335},  // Hot Dog                 ..Cactus
         {0x1f337, 0x1f37c},  // Tulip                   ..Baby Bottle
-        {0x1f37e, 0x1f393},  // Bottle With Popping C||k..Graduation Cap
-        {0x1f3a0, 0x1f3ca},  // Carousel H||se          ..Swimmer
+        {0x1f37e, 0x1f393},  // Bottle With Popping Cork..Graduation Cap
+        {0x1f3a0, 0x1f3ca},  // Carousel Horse          ..Swimmer
         {0x1f3cf, 0x1f3d3},  // Cricket Bat And Ball    ..Table Tennis Paddle And
         {0x1f3e0, 0x1f3f0},  // House Building          ..European Castle
         {0x1f3f4, 0x1f3f4},  // Waving Black Flag       ..Waving Black Flag
@@ -383,27 +434,33 @@ public final class WcWidth {
         {0x1f440, 0x1f440},  // Eyes                    ..Eyes
         {0x1f442, 0x1f4fc},  // Ear                     ..Videocassette
         {0x1f4ff, 0x1f53d},  // Prayer Beads            ..Down-pointing Small Red
-        {0x1f54b, 0x1f54e},  // Kaaba                   ..Men||ah With Nine Branch
+        {0x1f54b, 0x1f54e},  // Kaaba                   ..Menorah With Nine Branch
         {0x1f550, 0x1f567},  // Clock Face One Oclock   ..Clock Face Twelve-thirty
-        {0x1f57a, 0x1f57a},  // (nil)                   ..
+        {0x1f57a, 0x1f57a},  // Man Dancing             ..Man Dancing
         {0x1f595, 0x1f596},  // Reversed Hand With Middl..Raised Hand With Part Be
-        {0x1f5a4, 0x1f5a4},  // (nil)                   ..
+        {0x1f5a4, 0x1f5a4},  // Black Heart             ..Black Heart
         {0x1f5fb, 0x1f64f},  // Mount Fuji              ..Person With Folded Hands
         {0x1f680, 0x1f6c5},  // Rocket                  ..Left Luggage
         {0x1f6cc, 0x1f6cc},  // Sleeping Accommodation  ..Sleeping Accommodation
-        {0x1f6d0, 0x1f6d2},  // Place Of W||ship        ..
+        {0x1f6d0, 0x1f6d2},  // Place Of Worship        ..Shopping Trolley
+        {0x1f6d5, 0x1f6d7},  // Hindu Temple            ..(nil)
         {0x1f6eb, 0x1f6ec},  // Airplane Departure      ..Airplane Arriving
-        {0x1f6f4, 0x1f6f6},  // (nil)                   ..
-        {0x1f910, 0x1f91e},  // Zipper-mouth Face       ..
-        {0x1f920, 0x1f927},  // (nil)                   ..
-        {0x1f930, 0x1f930},  // (nil)                   ..
-        {0x1f933, 0x1f93e},  // (nil)                   ..
-        {0x1f940, 0x1f94b},  // (nil)                   ..
-        {0x1f950, 0x1f95e},  // (nil)                   ..
-        {0x1f980, 0x1f991},  // Crab                    ..
-        {0x1f9c0, 0x1f9c0},  // Cheese Wedge            ..Cheese Wedge
-        {0x20000, 0x2fffd},  // Cjk Unified Ideograph-20..
-        {0x30000, 0x3fffd},  // (nil)                   ..
+        {0x1f6f4, 0x1f6fc},  // Scooter                 ..(nil)
+        {0x1f7e0, 0x1f7eb},  // Large Orange Circle     ..Large Brown Square
+        {0x1f90c, 0x1f93a},  // (nil)                   ..Fencer
+        {0x1f93c, 0x1f945},  // Wrestlers               ..Goal Net
+        {0x1f947, 0x1f978},  // First Place Medal       ..(nil)
+        {0x1f97a, 0x1f9cb},  // Face With Pleading Eyes ..(nil)
+        {0x1f9cd, 0x1f9ff},  // Standing Person         ..Nazar Amulet
+        {0x1fa70, 0x1fa74},  // Ballet Shoes            ..(nil)
+        {0x1fa78, 0x1fa7a},  // Drop Of Blood           ..Stethoscope
+        {0x1fa80, 0x1fa86},  // Yo-yo                   ..(nil)
+        {0x1fa90, 0x1faa8},  // Ringed Planet           ..(nil)
+        {0x1fab0, 0x1fab6},  // (nil)                   ..(nil)
+        {0x1fac0, 0x1fac2},  // (nil)                   ..(nil)
+        {0x1fad0, 0x1fad6},  // (nil)                   ..(nil)
+        {0x20000, 0x2fffd},  // Cjk Unified Ideograph-20..(nil)
+        {0x30000, 0x3fffd},  // (nil)                   ..(nil)
     };
 
 

terminal-emulator/src/main/jni/termux.c

@@ -57,7 +57,7 @@ static int create_subprocess(JNIEnv* env,
     tcsetattr(ptm, TCSANOW, &tios);
 
     /** Set initial winsize. */
-    struct winsize sz = { .ws_row = rows, .ws_col = columns };
+    struct winsize sz = { .ws_row = (unsigned short) rows, .ws_col = (unsigned short) columns };
     ioctl(ptm, TIOCSWINSZ, &sz);
 
     pid_t pid = fork();
@@ -180,7 +180,7 @@ JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(
 
 JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyWindowSize(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd, jint rows, jint cols)
 {
-    struct winsize sz = { .ws_row = rows, .ws_col = cols };
+    struct winsize sz = { .ws_row = (unsigned short) rows, .ws_col = (unsigned short) cols };
     ioctl(fd, TIOCSWINSZ, &sz);
 }
 
@@ -194,7 +194,7 @@ JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyUTF8Mode(JNIEnv* TERMU
     }
 }
 
-JNIEXPORT int JNICALL Java_com_termux_terminal_JNI_waitFor(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint pid)
+JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_waitFor(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint pid)
 {
     int status;
     waitpid(pid, &status, 0);

terminal-emulator/src/test/java/com/termux/terminal/ByteQueueTest.java

@@ -17,13 +17,13 @@ public class ByteQueueTest extends TestCase {
 
 	public void testCompleteWrites() throws Exception {
 		ByteQueue q = new ByteQueue(10);
-		assertEquals(true, q.write(new byte[]{1, 2, 3}, 0, 3));
+        assertTrue(q.write(new byte[]{1, 2, 3}, 0, 3));
 
 		byte[] arr = new byte[10];
 		assertEquals(3, q.read(arr, true));
 		assertArrayEquals(new byte[]{1, 2, 3}, new byte[]{arr[0], arr[1], arr[2]});
 
-		assertEquals(true, q.write(new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, 0, 10));
+        assertTrue(q.write(new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, 0, 10));
 		assertEquals(10, q.read(arr, true));
 		assertArrayEquals(new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, arr);
 	}
@@ -43,7 +43,7 @@ public class ByteQueueTest extends TestCase {
 	public void testWriteNotesClosing() throws Exception {
 		ByteQueue q = new ByteQueue(10);
 		q.close();
-		assertEquals(false, q.write(new byte[]{1, 2, 3}, 0, 3));
+        assertFalse(q.write(new byte[]{1, 2, 3}, 0, 3));
 	}
 
 	public void testReadNonBlocking() throws Exception {

terminal-emulator/src/test/java/com/termux/terminal/ControlSequenceIntroducerTest.java

@@ -46,4 +46,20 @@ public class ControlSequenceIntroducerTest extends TerminalTestCase {
         withTerminalSized(5, 2).enterString("abcde\033[2G\033[2b\n").assertLinesAre("aeede", "     ");
     }
 
+    /** CSI 3 J  Clear scrollback (xterm, libvte; non-standard). */
+    public void testCsi3J() {
+        withTerminalSized(3, 2).enterString("a\r\nb\r\nc\r\nd");
+        assertEquals("a\nb\nc\nd", mTerminal.getScreen().getTranscriptText());
+        enterString("\033[3J");
+        assertEquals("c\nd", mTerminal.getScreen().getTranscriptText());
+
+        withTerminalSized(3, 2).enterString("Lorem_ipsum");
+        assertEquals("Lorem_ipsum", mTerminal.getScreen().getTranscriptText());
+        enterString("\033[3J");
+        assertEquals("ipsum", mTerminal.getScreen().getTranscriptText());
+
+        withTerminalSized(3, 2).enterString("w\r\nx\r\ny\r\nz\033[?1049h\033[3J\033[?1049l");
+        assertEquals("y\nz", mTerminal.getScreen().getTranscriptText());
+    }
+
 }

terminal-emulator/src/test/java/com/termux/terminal/CursorAndScreenTest.java

@@ -1,6 +1,6 @@
 package com.termux.terminal;
 
-import junit.framework.Assert;
+import org.junit.Assert;
 
 public class CursorAndScreenTest extends TerminalTestCase {
 
@@ -133,8 +133,6 @@ public class CursorAndScreenTest extends TerminalTestCase {
 		withTerminalSized(3, 3).enterString("ABCDEFG\033[2AH").assertLinesAre("AHC", "DEF", "G  ");
 		// If an attempt is made to move the cursor above the top margin, the cursor stops at the top margin:
 		withTerminalSized(3, 3).enterString("ABCDEFG\033[44AH").assertLinesAre("AHC", "DEF", "G  ");
-		// Set top margin and validate that cursor does not go above it:
-		withTerminalSized(3, 3).enterString("\033[2rABCDEFG\033[44AH").assertLinesAre("ABC", "DHF", "G  ");
 	}
 
 	public void testCursorDown() {
@@ -143,8 +141,6 @@ public class CursorAndScreenTest extends TerminalTestCase {
 		withTerminalSized(3, 3).enterString("AB\033[2BC").assertLinesAre("AB ", "   ", "  C");
 		// If an attempt is made to move the cursor below the bottom margin, the cursor stops at the bottom margin:
 		withTerminalSized(3, 3).enterString("AB\033[44BC").assertLinesAre("AB ", "   ", "  C");
-		// Set bottom margin and validate that cursor does not go above it:
-		withTerminalSized(3, 3).enterString("\033[1;2rAB\033[44BC").assertLinesAre("AB ", "  C", "   ");
 	}
 
 	public void testReportCursorPosition() {

terminal-emulator/src/test/java/com/termux/terminal/ScreenBufferTest.java

@@ -37,4 +37,12 @@ public class ScreenBufferTest extends TerminalTestCase {
 		withTerminalSized(5, 3).enterString("ABCDE\r\nFGHIJ").assertLinesAre("ABCDE", "FGHIJ", "     ");
 		assertEquals("ABCDE\nFG", mTerminal.getSelectedText(0, 0, 1, 1));
 	}
+
+	public void testGetSelectedTextJoinFullLines() {
+		withTerminalSized(5, 3).enterString("ABCDE\r\nFG");
+		assertEquals("ABCDEFG", mTerminal.getScreen().getSelectedText(0, 0, 1, 1, true, true));
+
+		withTerminalSized(5, 3).enterString("ABC\r\nFG");
+		assertEquals("ABC\nFG", mTerminal.getScreen().getSelectedText(0, 0, 1, 1, true, true));
+	}
 }

terminal-emulator/src/test/java/com/termux/terminal/ScrollRegionTest.java

@@ -107,4 +107,24 @@ public class ScrollRegionTest extends TerminalTestCase {
 		assertLinesAre("1 ", "2 ", "3 ", "QQ", "YY");
 	}
 
+    /** See https://github.com/termux/termux-app/issues/1340 */
+    public void testScrollRegionDoesNotLimitCursorMovement() {
+        withTerminalSized(6, 4)
+            .enterString("\033[4;7r\033[3;1Haaa\033[Axxx")
+            .assertLinesAre(
+                "      ",
+                "   xxx",
+                "aaa   ",
+                "      "
+            );
+
+        withTerminalSized(6, 4)
+            .enterString("\033[1;3r\033[3;1Haaa\033[Bxxx")
+            .assertLinesAre(
+                "      ",
+                "      ",
+                "aaa   ",
+                "   xxx"
+            );
+    }
 }

terminal-emulator/src/test/java/com/termux/terminal/TerminalTestCase.java

@@ -4,7 +4,6 @@ import junit.framework.AssertionFailedError;
 import junit.framework.TestCase;
 
 import java.io.ByteArrayOutputStream;
-import java.io.UnsupportedEncodingException;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashSet;
@@ -27,14 +26,10 @@ public abstract class TerminalTestCase extends TestCase {
 		}
 
 		public String getOutputAndClear() {
-			try {
-				String result = new String(baos.toByteArray(), "UTF-8");
-				baos.reset();
-				return result;
-			} catch (UnsupportedEncodingException e) {
-				throw new RuntimeException(e);
-			}
-		}
+            String result = new String(baos.toByteArray(), StandardCharsets.UTF_8);
+            baos.reset();
+            return result;
+        }
 
 		@Override
 		public void titleChanged(String oldTitle, String newTitle) {

terminal-emulator/src/test/java/com/termux/terminal/TextStyleTest.java

@@ -56,7 +56,7 @@ public class TextStyleTest extends TestCase {
 	public void testEncodingProtected() {
         long encoded = TextStyle.encode(TextStyle.COLOR_INDEX_FOREGROUND, TextStyle.COLOR_INDEX_BACKGROUND,
 				TextStyle.CHARACTER_ATTRIBUTE_STRIKETHROUGH);
-		assertTrue((TextStyle.decodeEffect(encoded) & TextStyle.CHARACTER_ATTRIBUTE_PROTECTED) == 0);
+        assertEquals(0, (TextStyle.decodeEffect(encoded) & TextStyle.CHARACTER_ATTRIBUTE_PROTECTED));
 		encoded = TextStyle.encode(TextStyle.COLOR_INDEX_FOREGROUND, TextStyle.COLOR_INDEX_BACKGROUND,
 				TextStyle.CHARACTER_ATTRIBUTE_STRIKETHROUGH | TextStyle.CHARACTER_ATTRIBUTE_PROTECTED);
 		assertTrue((TextStyle.decodeEffect(encoded) & TextStyle.CHARACTER_ATTRIBUTE_PROTECTED) != 0);

terminal-emulator/src/test/java/com/termux/terminal/WcWidthTest.java

@@ -58,10 +58,6 @@ public class WcWidthTest extends TestCase {
         assertWidthIs(0, 0x2060);
 	}
 
-	public void testWatch() {
-
-	}
-
 	public void testSofthyphen() {
 		// http://osdir.com/ml/internationalization.linux/2003-05/msg00006.html:
 		// "Existing implementation practice in terminals is that the SOFT HYPHEN is

terminal-view/build.gradle

@@ -17,16 +17,16 @@ ext {
 }
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion project.properties.compileSdkVersion.toInteger()
 
     dependencies {
-        implementation 'com.android.support:support-annotations:27.1.1'
+        implementation "androidx.annotation:annotation:1.1.0"
         api project(":terminal-emulator")
     }
 
     defaultConfig {
-        minSdkVersion 21
-        targetSdkVersion 27
+        minSdkVersion project.properties.minSdkVersion.toInteger()
+        targetSdkVersion project.properties.targetSdkVersion.toInteger()
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
 
@@ -36,10 +36,15 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13'
 }
 
 apply from: '../scripts/bintray-publish.gradle'

terminal-view/src/main/java/com/termux/view/TerminalRenderer.java

@@ -86,6 +86,7 @@ public final class TerminalRenderer {
 
             long lastRunStyle = 0;
             boolean lastRunInsideCursor = false;
+            boolean lastRunInsideSelection = false;
             int lastRunStartColumn = -1;
             int lastRunStartIndex = 0;
             boolean lastRunFontWidthMismatch = false;
@@ -98,7 +99,8 @@ public final class TerminalRenderer {
                 final int charsForCodePoint = charIsHighsurrogate ? 2 : 1;
                 final int codePoint = charIsHighsurrogate ? Character.toCodePoint(charAtIndex, line[currentCharIndex + 1]) : charAtIndex;
                 final int codePointWcWidth = WcWidth.width(codePoint);
-                final boolean insideCursor = (column >= selx1 && column <= selx2) || (cursorX == column || (codePointWcWidth == 2 && cursorX == column + 1));
+                final boolean insideCursor = (cursorX == column || (codePointWcWidth == 2 && cursorX == column + 1));
+                final boolean insideSelection = column >= selx1 && column <= selx2;
                 final long style = lineObject.getStyle(column);
 
                 // Check if the measured text width for this code point is not the same as that expected by wcwidth().
@@ -109,7 +111,7 @@ public final class TerminalRenderer {
                     currentCharIndex, charsForCodePoint);
                 final boolean fontWidthMismatch = Math.abs(measuredCodePointWidth / mFontWidth - codePointWcWidth) > 0.01;
 
-                if (style != lastRunStyle || insideCursor != lastRunInsideCursor || fontWidthMismatch || lastRunFontWidthMismatch) {
+                if (style != lastRunStyle || insideCursor != lastRunInsideCursor || insideSelection != lastRunInsideSelection || fontWidthMismatch || lastRunFontWidthMismatch) {
                     if (column == 0) {
                         // Skip first column as there is nothing to draw, just record the current style.
                     } else {
@@ -118,11 +120,12 @@ public final class TerminalRenderer {
                         int cursorColor = lastRunInsideCursor ? mEmulator.mColors.mCurrentColors[TextStyle.COLOR_INDEX_CURSOR] : 0;
                         drawTextRun(canvas, line, palette, heightOffset, lastRunStartColumn, columnWidthSinceLastRun,
                             lastRunStartIndex, charsSinceLastRun, measuredWidthForRun,
-                            cursorColor, cursorShape, lastRunStyle, reverseVideo);
+                            cursorColor, cursorShape, lastRunStyle, reverseVideo || lastRunInsideSelection);
                     }
                     measuredWidthForRun = 0.f;
                     lastRunStyle = style;
                     lastRunInsideCursor = insideCursor;
+                    lastRunInsideSelection = insideSelection;
                     lastRunStartColumn = column;
                     lastRunStartIndex = currentCharIndex;
                     lastRunFontWidthMismatch = fontWidthMismatch;
@@ -141,7 +144,7 @@ public final class TerminalRenderer {
             final int charsSinceLastRun = currentCharIndex - lastRunStartIndex;
             int cursorColor = lastRunInsideCursor ? mEmulator.mColors.mCurrentColors[TextStyle.COLOR_INDEX_CURSOR] : 0;
             drawTextRun(canvas, line, palette, heightOffset, lastRunStartColumn, columnWidthSinceLastRun, lastRunStartIndex, charsSinceLastRun,
-                measuredWidthForRun, cursorColor, cursorShape, lastRunStyle, reverseVideo);
+                measuredWidthForRun, cursorColor, cursorShape, lastRunStyle, reverseVideo || lastRunInsideSelection);
         }
     }
 

terminal-view/src/main/res/drawable/text_select_handle_left_material.xml

@@ -1,4 +1,10 @@
-<?xml version="1.0" encoding="utf-8"?>
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-        android:src="@drawable/text_select_handle_left_mtrl_alpha"
-        android:tint="#2196F3" />
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="24dp"
+    android:viewportWidth="132"
+    android:viewportHeight="66">
+  <path
+      android:pathData="M52.3,1.6c-5.7,2.1 -12.9,8.6 -16,14.8 -2.2,4.1 -2.8,6.9 -3.1,14.3 -0.6,12.6 1.3,17.8 9.3,25.8 8,8 13.2,9.9 25.8,9.3 11.1,-0.5 17.3,-3.2 23.5,-10.3 6.5,-7.4 7.2,-10.8 7.2,-34.7l0,-20.8 -21.2,0.1c-16.1,-0 -22.3,0.4 -25.5,1.5z"
+      android:fillColor="#2196F3"
+      android:strokeColor="#00000000"/>
+</vector>

terminal-view/src/main/res/drawable/text_select_handle_right_material.xml

@@ -1,4 +1,10 @@
-<?xml version="1.0" encoding="utf-8"?>
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-        android:src="@drawable/text_select_handle_right_mtrl_alpha"
-        android:tint="#2196F3" />
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp"
+    android:height="24dp"
+    android:viewportWidth="132"
+    android:viewportHeight="66">
+  <path
+      android:pathData="M33,20.8c0,23.9 0.7,27.3 7.2,34.7 6.2,7.1 12.4,9.8 23.5,10.3 12.6,0.6 17.8,-1.3 25.8,-9.3 8,-8 9.9,-13.2 9.3,-25.8 -0.5,-11.1 -3.2,-17.3 -10.3,-23.5 -7.4,-6.5 -10.8,-7.2 -34.7,-7.2l-20.8,-0 0,20.8z"
+      android:fillColor="#2196F3"
+      android:strokeColor="#00000000"/>
+</vector>