Release: v0.118.2

Exit code `0` should be enough to check for failure.

.github/workflows/attach_debug_apks_to_release.yml

@@ -58,19 +58,18 @@ jobs:
             "${APK_BASENAME_PREFIX}_armeabi-v7a.apk" \
             "${APK_BASENAME_PREFIX}_x86_64.apk" \
             "${APK_BASENAME_PREFIX}_x86.apk" \
-            > sha256sums); then
+            > "${APK_BASENAME_PREFIX}_sha256sums"); then
             exit_on_error "Generate sha25sums failed for '$RELEASE_VERSION_NAME' release."
           fi
 
           echo "Attaching APKs to github release"
-          if ! hub release edit \
-          -m "" \
-          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_universal.apk" \
-          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_arm64-v8a.apk" \
-          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_armeabi-v7a.apk" \
-          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_x86_64.apk" \
-          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_x86.apk" \
-          -a "$APK_DIR_PATH/sha256sums" \
-          "$RELEASE_VERSION_NAME"; then
+          if ! gh release upload "$RELEASE_VERSION_NAME" \
+            "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_universal.apk" \
+            "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_arm64-v8a.apk" \
+            "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_armeabi-v7a.apk" \
+            "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_x86_64.apk" \
+            "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_x86.apk" \
+            "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_sha256sums" \
+          ; then
             exit_on_error "Attach APKs to release failed for '$RELEASE_VERSION_NAME' release."
           fi

.github/workflows/debug_build.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+      - 'github-releases/**'
   pull_request:
     branches:
       - master
@@ -13,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Build APKs
         shell: bash {0}
@@ -65,7 +66,7 @@ jobs:
           fi
 
       - name: Attach universal APK file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.APK_BASENAME_PREFIX }}_universal
           path: |
@@ -73,7 +74,7 @@ jobs:
             ${{ env.APK_DIR_PATH }}/output-metadata.json
 
       - name: Attach arm64-v8a APK file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.APK_BASENAME_PREFIX }}_arm64-v8a
           path: |
@@ -81,7 +82,7 @@ jobs:
             ${{ env.APK_DIR_PATH }}/output-metadata.json
 
       - name: Attach armeabi-v7a APK file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.APK_BASENAME_PREFIX }}_armeabi-v7a
           path: |
@@ -89,7 +90,7 @@ jobs:
             ${{ env.APK_DIR_PATH }}/output-metadata.json
 
       - name: Attach x86_64 APK file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.APK_BASENAME_PREFIX }}_x86_64
           path: |
@@ -97,7 +98,7 @@ jobs:
             ${{ env.APK_DIR_PATH }}/output-metadata.json
 
       - name: Attach x86 APK file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ env.APK_BASENAME_PREFIX }}_x86
           path: |
@@ -105,7 +106,7 @@ jobs:
             ${{ env.APK_DIR_PATH }}/output-metadata.json
 
       - name: Attach sha256sums file
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: sha256sums
           path: |

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

@@ -15,5 +15,5 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: gradle/wrapper-validation-action@v1

.github/workflows/run_tests.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Clone repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Execute tests
       run: |
         ./gradlew test

README.md

@@ -49,7 +49,7 @@ The core [Termux](https://github.com/termux/termux-app) app comes with the follo
 
 ## Installation
 
-Latest version is `v0.118.0`.
+Latest version is `v0.118.1`.
 
 Termux can be obtained through various sources listed below for **only** Android `>= 7`. Support was dropped for Android `5` and `6` on [2020-01-01](https://www.reddit.com/r/termux/comments/dnzdbs/end_of_android56_support_on_20200101/) at `v0.83`, old builds are available on [archive.org](https://archive.org/details/termux-repositories-legacy).
 
@@ -145,7 +145,7 @@ The main ones are the following.
 - [Termux Matrix Channel](https://matrix.to/#termux_termux:gitter.im)
 - [Termux Dev Matrix Channel](https://matrix.to/#termux_dev:gitter.im)
 - [Termux Twitter](https://twitter.com/termux/)
-- [Termux Reports Email](mailto:termuxreports@groups.io)
+- [Termux Reports Email](mailto:support@termux.dev)
 
 ### Wikis
 

app/build.gradle

@@ -30,8 +30,8 @@ android {
         applicationId "com.termux"
         minSdkVersion project.properties.minSdkVersion.toInteger()
         targetSdkVersion project.properties.targetSdkVersion.toInteger()
-        versionCode 118
-        versionName "0.118.0"
+        versionCode 1001
+        versionName "0.118.2"
 
         if (appVersionName) versionName = appVersionName
         validateVersionName(versionName)
@@ -195,11 +195,11 @@ clean {
 
 task downloadBootstraps() {
     doLast {
-        def version = "2022.01.07-r1"
-        downloadBootstrap("aarch64", "0fe6d0159d12fcb8baf7750ce9072b9b36f742662b02ad4da145ab85873614cd", version)
-        downloadBootstrap("arm",     "0a6014e2ec3b7079524fee3caabd02be05bcb4add3c6cd9e5ad98408b428c717", version)
-        downloadBootstrap("i686",    "c55369a9af1316dc3d99457aa23cce64b29c1e60e375159352c0d4b9cfed4ac6", version)
-        downloadBootstrap("x86_64",  "e93a7c66d15edb7d1b5ceca906255c85ead35a8b6a52f93524e117cfb07e6778", version)
+        def version = "2025.03.28-r1+apt-android-7"
+        downloadBootstrap("aarch64", "c8d702b6f742935001c37cda81b8ac69504a95d5cf28f2899532dd8cd4b057eb", version)
+        downloadBootstrap("arm",     "f3bb9d1b32552b34fff41861dbf193ec5ba2848d67d779ac1c7256da6640f85d", version)
+        downloadBootstrap("i686",    "36db3e1ac3547f9a174fd763bd9a484fa1a3449cdd81e1cf2408ff0454f839c6", version)
+        downloadBootstrap("x86_64",  "1c124ec2396ee70a51b0b0a574f29aa659526aa2b9f558f993b2fb05d1e51855", version)
     }
 }
 

app/src/main/AndroidManifest.xml

@@ -33,6 +33,7 @@
     <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
     <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
     <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" tools:ignore="ProtectedPermissions" />
+    <uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
 
     <application
         android:name=".app.TermuxApplication"
@@ -180,13 +181,24 @@
         <meta-data
             android:name="android.max_aspect"
             android:value="10.0" />
+
+
+        <!-- https://developer.samsung.com/samsung-dex/modify-optimizing.html -->
+
+        <!-- Version < 3.0. DeX Mode and Screen Mirroring support -->
         <meta-data
-            android:name="com.sec.android.support.multiwindow"
+            android:name="com.samsung.android.keepalive.density"
             android:value="true" />
+
+        <!-- Version >= 3.0. DeX Dual Mode support -->
         <meta-data
             android:name="com.samsung.android.multidisplay.keep_process_alive"
             android:value="true" />
 
+        <meta-data
+            android:name="com.sec.android.support.multiwindow"
+            android:value="true" />
+
     </application>
 
 </manifest>

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

@@ -14,7 +14,6 @@ import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
 import android.graphics.Color;
 import android.net.Uri;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.view.ContextMenu;
@@ -25,7 +24,6 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
-import android.view.autofill.AutofillManager;
 import android.widget.EditText;
 import android.widget.ImageButton;
 import android.widget.ListView;
@@ -36,6 +34,7 @@ import com.termux.R;
 import com.termux.app.terminal.TermuxActivityRootView;
 import com.termux.shared.activities.ReportActivity;
 import com.termux.shared.packages.PermissionUtils;
+import com.termux.shared.data.DataUtils;
 import com.termux.shared.termux.TermuxConstants;
 import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_ACTIVITY;
 import com.termux.app.activities.HelpActivity;
@@ -162,7 +161,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
     private static final int CONTEXT_MENU_SELECT_URL_ID = 0;
     private static final int CONTEXT_MENU_SHARE_TRANSCRIPT_ID = 1;
-    private static final int CONTEXT_MENU_AUTOFILL_ID = 2;
+    private static final int CONTEXT_MENU_SHARE_SELECTED_TEXT = 10;
+    private static final int CONTEXT_MENU_AUTOFILL_USERNAME = 11;
+    private static final int CONTEXT_MENU_AUTOFILL_PASSWORD = 2;
     private static final int CONTEXT_MENU_RESET_TERMINAL_ID = 3;
     private static final int CONTEXT_MENU_KILL_PROCESS_ID = 4;
     private static final int CONTEXT_MENU_STYLING_ID = 5;
@@ -587,17 +588,16 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         TerminalSession currentSession = getCurrentSession();
         if (currentSession == null) return;
 
-        boolean addAutoFillMenu = false;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            AutofillManager autofillManager = getSystemService(AutofillManager.class);
-            if (autofillManager != null && autofillManager.isEnabled()) {
-                addAutoFillMenu = true;
-            }
-        }
+        boolean autoFillEnabled = mTerminalView.isAutoFillEnabled();
 
         menu.add(Menu.NONE, CONTEXT_MENU_SELECT_URL_ID, Menu.NONE, R.string.action_select_url);
         menu.add(Menu.NONE, CONTEXT_MENU_SHARE_TRANSCRIPT_ID, Menu.NONE, R.string.action_share_transcript);
-        if (addAutoFillMenu) menu.add(Menu.NONE, CONTEXT_MENU_AUTOFILL_ID, Menu.NONE, R.string.action_autofill_password);
+        if (!DataUtils.isNullOrEmpty(mTerminalView.getStoredSelectedText()))
+            menu.add(Menu.NONE, CONTEXT_MENU_SHARE_SELECTED_TEXT, Menu.NONE, R.string.action_share_selected_text);
+        if (autoFillEnabled)
+            menu.add(Menu.NONE, CONTEXT_MENU_AUTOFILL_USERNAME, Menu.NONE, R.string.action_autofill_username);
+        if (autoFillEnabled)
+            menu.add(Menu.NONE, CONTEXT_MENU_AUTOFILL_PASSWORD, Menu.NONE, R.string.action_autofill_password);
         menu.add(Menu.NONE, CONTEXT_MENU_RESET_TERMINAL_ID, Menu.NONE, R.string.action_reset_terminal);
         menu.add(Menu.NONE, CONTEXT_MENU_KILL_PROCESS_ID, Menu.NONE, getResources().getString(R.string.action_kill_process, getCurrentSession().getPid())).setEnabled(currentSession.isRunning());
         menu.add(Menu.NONE, CONTEXT_MENU_STYLING_ID, Menu.NONE, R.string.action_style_terminal);
@@ -625,8 +625,14 @@ public final class TermuxActivity extends Activity implements ServiceConnection
             case CONTEXT_MENU_SHARE_TRANSCRIPT_ID:
                 mTermuxTerminalViewClient.shareSessionTranscript();
                 return true;
-            case CONTEXT_MENU_AUTOFILL_ID:
-                requestAutoFill();
+            case CONTEXT_MENU_SHARE_SELECTED_TEXT:
+                mTermuxTerminalViewClient.shareSelectedText();
+                return true;
+            case CONTEXT_MENU_AUTOFILL_USERNAME:
+                mTerminalView.requestAutoFillUsername();
+                return true;
+            case CONTEXT_MENU_AUTOFILL_PASSWORD:
+                mTerminalView.requestAutoFillPassword();
                 return true;
             case CONTEXT_MENU_RESET_TERMINAL_ID:
                 onResetTerminalSession(session);
@@ -654,6 +660,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         }
     }
 
+    @Override
+    public void onContextMenuClosed(Menu menu) {
+        super.onContextMenuClosed(menu);
+        // onContextMenuClosed() is triggered twice if back button is pressed to dismiss instead of tap for some reason
+        mTerminalView.onContextMenuClosed(menu);
+    }
+
     private void showKillSessionDialog(TerminalSession session) {
         if (session == null) return;
 
@@ -700,15 +713,6 @@ public final class TermuxActivity extends Activity implements ServiceConnection
         }
     }
 
-    private void requestAutoFill() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            AutofillManager autofillManager = getSystemService(AutofillManager.class);
-            if (autofillManager != null && autofillManager.isEnabled()) {
-                autofillManager.requestAutofill(mTerminalView);
-            }
-        }
-    }
-
 
 
     /**

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

@@ -16,8 +16,11 @@ import com.termux.shared.file.TermuxFileUtils;
 import com.termux.shared.interact.MessageDialogUtils;
 import com.termux.shared.logger.Logger;
 import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.models.ExecutionCommand;
 import com.termux.shared.models.errors.Error;
 import com.termux.shared.packages.PackageUtils;
+import com.termux.shared.shell.TermuxShellEnvironmentClient;
+import com.termux.shared.shell.TermuxTask;
 import com.termux.shared.termux.TermuxConstants;
 import com.termux.shared.termux.TermuxUtils;
 
@@ -187,7 +190,8 @@ final class TermuxInstaller {
                                             outStream.write(buffer, 0, readBytes);
                                     }
                                     if (zipEntryName.startsWith("bin/") || zipEntryName.startsWith("libexec") ||
-                                        zipEntryName.startsWith("lib/apt/apt-helper") || zipEntryName.startsWith("lib/apt/methods")) {
+                                        zipEntryName.startsWith("lib/apt/apt-helper") || zipEntryName.startsWith("lib/apt/methods") ||
+                                        zipEntryName.equals("etc/termux/bootstrap/termux-bootstrap-second-stage.sh")) {
                                         //noinspection OctalInteger
                                         Os.chmod(targetFile.getAbsolutePath(), 0700);
                                     }
@@ -208,6 +212,34 @@ final class TermuxInstaller {
                         throw new RuntimeException("Moving termux prefix staging to prefix directory failed");
                     }
 
+                    // Run Termux bootstrap second stage.
+                    String termuxBootstrapSecondStageFile = TERMUX_PREFIX_DIR_PATH + "/etc/termux/bootstrap/termux-bootstrap-second-stage.sh";
+                    if (!FileUtils.fileExists(termuxBootstrapSecondStageFile, false)) {
+                        Logger.logInfo(LOG_TAG, "Not running Termux bootstrap second stage since script not found at \"" + termuxBootstrapSecondStageFile + "\" path.");
+                    } else {
+                        if (!FileUtils.fileExists(TermuxConstants.TERMUX_BIN_PREFIX_DIR_PATH + "/bash", true)) {
+                            Logger.logInfo(LOG_TAG, "Not running Termux bootstrap second stage since bash not found.");
+                        }
+                        Logger.logInfo(LOG_TAG, "Running Termux bootstrap second stage.");
+
+                        ExecutionCommand executionCommand = new ExecutionCommand(-1,
+                            termuxBootstrapSecondStageFile, null, null,
+                            null, true, false);
+                        executionCommand.commandLabel = "Termux Bootstrap Second Stage Command";
+                        executionCommand.backgroundCustomLogLevel = Logger.LOG_LEVEL_NORMAL;
+                        TermuxTask termuxTask = TermuxTask.execute(activity, executionCommand, null, new TermuxShellEnvironmentClient(), true);
+                        if (termuxTask == null || !executionCommand.isSuccessful() || executionCommand.resultData.exitCode != 0) {
+                            // Generate debug report before deleting broken prefix directory to get `stat` info at time of failure.
+                            showBootstrapErrorDialog(activity, whenDone, MarkdownUtils.getMarkdownCodeForString(executionCommand.toString(), true));
+
+                            // Delete prefix directory as otherwise when app is restarted, the broken prefix directory would be used and logged into.
+                            error = FileUtils.deleteFile("termux prefix directory", TERMUX_PREFIX_DIR_PATH, true);
+                            if (error != null)
+                                Logger.logErrorExtended(LOG_TAG, error.toString());
+                            return;
+                        }
+                    }
+
                     Logger.logInfo(LOG_TAG, "Bootstrap packages installed successfully.");
                     activity.runOnUiThread(whenDone);
 

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

@@ -161,6 +161,13 @@ public class TermuxOpenReceiver extends BroadcastReceiver {
 
         @Override
         public String getType(@NonNull Uri uri) {
+            String path = uri.getLastPathSegment();
+            int extIndex = path.lastIndexOf('.') + 1;
+            if (extIndex > 0) {
+                MimeTypeMap mimeMap = MimeTypeMap.getSingleton();
+                String ext = path.substring(extIndex).toLowerCase();
+                return mimeMap.getMimeTypeFromExtension(ext);
+            }
             return null;
         }
 

app/src/main/java/com/termux/app/terminal/TermuxTerminalSessionClient.java

@@ -15,6 +15,7 @@ import android.widget.ListView;
 import com.termux.R;
 import com.termux.shared.shell.TermuxSession;
 import com.termux.shared.interact.TextInputDialogUtils;
+import com.termux.shared.interact.ShareUtils;
 import com.termux.app.TermuxActivity;
 import com.termux.shared.terminal.TermuxTerminalSessionClientBase;
 import com.termux.shared.termux.TermuxConstants;
@@ -177,20 +178,16 @@ public class TermuxTerminalSessionClient extends TermuxTerminalSessionClientBase
     public void onCopyTextToClipboard(TerminalSession session, String text) {
         if (!mActivity.isVisible()) return;
 
-        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
-        clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(text)));
+        ShareUtils.copyTextToClipboard(mActivity, text);
     }
 
     @Override
     public void onPasteTextFromClipboard(TerminalSession session) {
         if (!mActivity.isVisible()) return;
 
-        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
-        ClipData clipData = clipboard.getPrimaryClip();
-        if (clipData != null) {
-            CharSequence paste = clipData.getItemAt(0).coerceToText(mActivity);
-            if (!TextUtils.isEmpty(paste)) mActivity.getTerminalView().mEmulator.paste(paste.toString());
-        }
+        String text = ShareUtils.getTextStringFromClipboardIfSet(mActivity, true);
+        if (text != null)
+            mActivity.getTerminalView().mEmulator.paste(text);
     }
 
     @Override

app/src/main/java/com/termux/app/terminal/TermuxTerminalViewClient.java

@@ -6,7 +6,6 @@ import android.content.ActivityNotFoundException;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
-import android.content.Intent;
 import android.media.AudioManager;
 import android.net.Uri;
 import android.os.Environment;
@@ -213,7 +212,7 @@ public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
 
     @Override
     public boolean isTerminalViewSelected() {
-        return mActivity.getTerminalToolbarViewPager() == null || mActivity.isTerminalViewSelected();
+        return mActivity.getTerminalToolbarViewPager() == null || mActivity.isTerminalViewSelected() || mActivity.getTerminalView().hasFocus();
     }
 
 
@@ -541,7 +540,8 @@ public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
         // disabled or hidden at startup, otherwise if hardware keyboard is attached and user
         // starts typing on hardware keyboard without tapping on the terminal first, then a colour
         // tint will be added to the terminal as highlight for the focussed view. Test with a light
-        // theme.
+        // theme. For android 8.+, the "defaultFocusHighlightEnabled" attribute is also set to false
+        // in TerminalView layout to fix the issue.
 
         // If soft keyboard is disabled by user for Termux (check function docs for Termux behaviour info)
         if (KeyboardUtils.shouldSoftKeyboardBeDisabled(mActivity,
@@ -646,17 +646,17 @@ public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
         String transcriptText = ShellUtils.getTerminalSessionTranscriptText(session, false, true);
         if (transcriptText == null) return;
 
-        try {
-            // See https://github.com/termux/termux-app/issues/1166.
-            Intent intent = new Intent(Intent.ACTION_SEND);
-            intent.setType("text/plain");
-            transcriptText = DataUtils.getTruncatedCommandOutput(transcriptText, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, true, false).trim();
-            intent.putExtra(Intent.EXTRA_TEXT, transcriptText);
-            intent.putExtra(Intent.EXTRA_SUBJECT, mActivity.getString(R.string.title_share_transcript));
-            mActivity.startActivity(Intent.createChooser(intent, mActivity.getString(R.string.title_share_transcript_with)));
-        } catch (Exception e) {
-            Logger.logStackTraceWithMessage(LOG_TAG,"Failed to get share session transcript of length " + transcriptText.length(), e);
-        }
+        // See https://github.com/termux/termux-app/issues/1166.
+        transcriptText = DataUtils.getTruncatedCommandOutput(transcriptText, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, true, false).trim();
+        ShareUtils.shareText(mActivity, mActivity.getString(R.string.title_share_transcript),
+            transcriptText, mActivity.getString(R.string.title_share_transcript_with));
+    }
+
+    public void shareSelectedText() {
+        String selectedText = mActivity.getTerminalView().getStoredSelectedText();
+        if (DataUtils.isNullOrEmpty(selectedText)) return;
+        ShareUtils.shareText(mActivity, mActivity.getString(R.string.title_share_selected_text),
+            selectedText, mActivity.getString(R.string.title_share_selected_text_with));
     }
 
     public void showUrlSelection() {
@@ -677,9 +677,7 @@ public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
         // Click to copy url to clipboard:
         final AlertDialog dialog = new AlertDialog.Builder(mActivity).setItems(urls, (di, which) -> {
             String url = (String) urls[which];
-            ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
-            clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
-            Toast.makeText(mActivity, R.string.msg_select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
+            ShareUtils.copyTextToClipboard(mActivity, url, mActivity.getString(R.string.msg_select_url_copied_to_clipboard));
         }).setTitle(R.string.title_select_url_dialog).create();
 
         // Long press to open URL:
@@ -755,12 +753,9 @@ public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
         if (session == null) return;
         if (!session.isRunning()) return;
 
-        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
-        ClipData clipData = clipboard.getPrimaryClip();
-        if (clipData == null) return;
-        CharSequence paste = clipData.getItemAt(0).coerceToText(mActivity);
-        if (!TextUtils.isEmpty(paste))
-            session.getEmulator().paste(paste.toString());
+        String text = ShareUtils.getTextStringFromClipboardIfSet(mActivity, true);
+        if (text != null)
+            session.getEmulator().paste(text);
     }
 
 }

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

@@ -46,6 +46,8 @@ public class TermuxFileReceiverActivity extends Activity {
     private static final String LOG_TAG = "TermuxFileReceiverActivity";
 
     static boolean isSharedTextAnUrl(String sharedText) {
+        if (sharedText == null || sharedText.isEmpty()) return false;
+
         return Patterns.WEB_URL.matcher(sharedText).matches()
             || Pattern.matches("magnet:\\?xt=urn:btih:.*?", sharedText);
     }

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

@@ -1,4 +1,6 @@
 <com.termux.app.terminal.TermuxActivityRootView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/activity_termux_root_view"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -25,11 +27,11 @@
                 android:id="@+id/terminal_view"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
+                android:defaultFocusHighlightEnabled="false"
                 android:focusableInTouchMode="true"
                 android:scrollbarThumbVertical="@drawable/terminal_scroll_shape"
                 android:scrollbars="vertical"
-                android:importantForAutofill="no"
-                android:autofillHints="password" />
+                tools:ignore="UnusedAttribute" />
 
             <LinearLayout
                 android:id="@+id/left_drawer"
@@ -96,7 +98,7 @@
             android:visibility="gone"
             android:layout_width="match_parent"
             android:layout_height="37.5dp"
-            android:background="@android:drawable/screen_background_dark_transparent"
+            android:background="@color/black"
             android:layout_alignParentBottom="true" />
 
     </RelativeLayout>

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

@@ -65,6 +65,11 @@
     <string name="title_share_transcript">Terminal transcript</string>
     <string name="title_share_transcript_with">Send transcript to:</string>
 
+    <string name="action_share_selected_text">Share selected text</string>
+    <string name="title_share_selected_text">Terminal Text</string>
+    <string name="title_share_selected_text_with">Send selected text to:</string>
+
+    <string name="action_autofill_username">Autofill username</string>
     <string name="action_autofill_password">Autofill password</string>
 
     <string name="action_reset_terminal">Reset</string>

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

@@ -24,6 +24,8 @@ public class TermuxFileReceiverActivityTest {
 
         List<String> invalidUrls = new ArrayList<>();
         invalidUrls.add("a test with example.com");
+        invalidUrls.add("");
+        invalidUrls.add(null);
         for (String url : invalidUrls) {
             Assert.assertFalse(TermuxFileReceiverActivity.isSharedTextAnUrl(url));
         }

gradle.properties

@@ -12,7 +12,12 @@
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
-org.gradle.jvmargs=-Xmx2048M
+org.gradle.jvmargs=-Xmx2048M \
+--add-exports=java.base/sun.nio.ch=ALL-UNNAMED \
+--add-opens=java.base/java.lang=ALL-UNNAMED \
+--add-opens=java.base/java.lang.reflect=ALL-UNNAMED \
+--add-opens=java.base/java.io=ALL-UNNAMED \
+--add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED
 android.useAndroidX=true
 
 minSdkVersion=24

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

@@ -23,10 +23,10 @@ final class JNI {
      * @return the file descriptor resulting from opening /dev/ptmx master device. The sub process will have opened the
      * slave device counterpart (/dev/pts/$N) and have it as stdint, stdout and stderr.
      */
-    public static native int createSubprocess(String cmd, String cwd, String[] args, String[] envVars, int[] processId, int rows, int columns);
+    public static native int createSubprocess(String cmd, String cwd, String[] args, String[] envVars, int[] processId, int rows, int columns, int cellWidth, int cellHeight);
 
     /** Set the window size for a given pty, which allows connected programs to learn how large their screen is. */
-    public static native void setPtyWindowSize(int fd, int rows, int cols);
+    public static native void setPtyWindowSize(int fd, int rows, int cols, int cellWidth, int cellHeight);
 
     /**
      * Causes the calling thread to wait for the process associated with the receiver to finish executing.

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

@@ -0,0 +1,80 @@
+package com.termux.terminal;
+
+import android.util.Log;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+public class Logger {
+
+    public static void logError(TerminalSessionClient client, String logTag, String message) {
+        if (client != null)
+            client.logError(logTag, message);
+        else
+            Log.e(logTag, message);
+    }
+
+    public static void logWarn(TerminalSessionClient client, String logTag, String message) {
+        if (client != null)
+            client.logWarn(logTag, message);
+        else
+            Log.w(logTag, message);
+    }
+
+    public static void logInfo(TerminalSessionClient client, String logTag, String message) {
+        if (client != null)
+            client.logInfo(logTag, message);
+        else
+            Log.i(logTag, message);
+    }
+
+    public static void logDebug(TerminalSessionClient client, String logTag, String message) {
+        if (client != null)
+            client.logDebug(logTag, message);
+        else
+            Log.d(logTag, message);
+    }
+
+    public static void logVerbose(TerminalSessionClient client, String logTag, String message) {
+        if (client != null)
+            client.logVerbose(logTag, message);
+        else
+            Log.v(logTag, message);
+    }
+
+    public static void logStackTraceWithMessage(TerminalSessionClient client, String tag, String message, Throwable throwable) {
+        logError(client, tag, getMessageAndStackTraceString(message, throwable));
+    }
+
+    public static String getMessageAndStackTraceString(String message, Throwable throwable) {
+        if (message == null && throwable == null)
+            return null;
+        else if (message != null && throwable != null)
+            return message + ":\n" + getStackTraceString(throwable);
+        else if (throwable == null)
+            return message;
+        else
+            return getStackTraceString(throwable);
+    }
+
+    public static String getStackTraceString(Throwable throwable) {
+        if (throwable == null) return null;
+
+        String stackTraceString = null;
+
+        try {
+            StringWriter errors = new StringWriter();
+            PrintWriter pw = new PrintWriter(errors);
+            throwable.printStackTrace(pw);
+            pw.close();
+            stackTraceString = errors.toString();
+            errors.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return stackTraceString;
+    }
+
+}

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

@@ -54,7 +54,7 @@ public final class TerminalBuffer {
     }
 
     public String getSelectedText(int selX1, int selY1, int selX2, int selY2, boolean joinBackLines) {
-        return getSelectedText(selX1, selY1, selX2, selY2, true, false);
+        return getSelectedText(selX1, selY1, selX2, selY2, joinBackLines, false);
     }
 
     public String getSelectedText(int selX1, int selY1, int selX2, int selY2, boolean joinBackLines, boolean joinFullLines) {
@@ -93,8 +93,11 @@ public final class TerminalBuffer {
                     if (c != ' ') lastPrintingCharIndex = i;
                 }
             }
-            if (lastPrintingCharIndex != -1)
-                builder.append(line, x1Index, lastPrintingCharIndex - x1Index + 1);
+
+            int len = lastPrintingCharIndex - x1Index + 1;
+            if (lastPrintingCharIndex != -1 && len > 0)
+                builder.append(line, x1Index, len);
+
             boolean lineFillsWidth = lastPrintingCharIndex == x2Index - 1;
             if ((!joinBackLines || !rowLineWrap) && (!joinFullLines || !lineFillsWidth)
                 && row < selY2 && row < mScreenRows - 1) builder.append('\n');
@@ -446,8 +449,8 @@ public final class TerminalBuffer {
     }
 
     public void setChar(int column, int row, int codePoint, long style) {
-        if (row >= mScreenRows || column >= mColumns)
-            throw new IllegalArgumentException("row=" + row + ", column=" + column + ", mScreenRows=" + mScreenRows + ", mColumns=" + mColumns);
+        if (row  < 0 || row >= mScreenRows || column < 0 || column >= mColumns)
+            throw new IllegalArgumentException("TerminalBuffer.setChar(): row=" + row + ", column=" + column + ", mScreenRows=" + mScreenRows + ", mColumns=" + mColumns);
         row = externalToInternalRow(row);
         allocateFullLineIfNecessary(row).setChar(column, codePoint, style);
     }

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

@@ -71,6 +71,7 @@ public final class TerminalColorScheme {
 
     public void updateWith(Properties props) {
         reset();
+        boolean cursorPropExists = false;
         for (Map.Entry<Object, Object> entries : props.entrySet()) {
             String key = (String) entries.getKey();
             String value = (String) entries.getValue();
@@ -82,6 +83,7 @@ public final class TerminalColorScheme {
                 colorIndex = TextStyle.COLOR_INDEX_BACKGROUND;
             } else if (key.equals("cursor")) {
                 colorIndex = TextStyle.COLOR_INDEX_CURSOR;
+                cursorPropExists = true;
             } else if (key.startsWith("color")) {
                 try {
                     colorIndex = Integer.parseInt(key.substring(5));
@@ -98,6 +100,27 @@ public final class TerminalColorScheme {
 
             mDefaultColors[colorIndex] = colorValue;
         }
+
+        if (!cursorPropExists)
+            setCursorColorForBackground();
+    }
+
+    /**
+     * If the "cursor" color is not set by user, we need to decide on the appropriate color that will
+     * be visible on the current terminal background. White will not be visible on light backgrounds
+     * and black won't be visible on dark backgrounds. So we find the perceived brightness of the
+     * background color and if its below the threshold (too dark), we use white cursor and if its
+     * above (too bright), we use black cursor.
+     */
+    public void setCursorColorForBackground() {
+        int backgroundColor = mDefaultColors[TextStyle.COLOR_INDEX_BACKGROUND];
+        int brightness = TerminalColors.getPerceivedBrightnessOfColor(backgroundColor);
+        if (brightness > 0) {
+            if (brightness < 130)
+                mDefaultColors[TextStyle.COLOR_INDEX_CURSOR] = 0xffffffff;
+            else
+                mDefaultColors[TextStyle.COLOR_INDEX_CURSOR] = 0xff000000;
+        }
     }
 
 }

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

@@ -1,5 +1,7 @@
 package com.termux.terminal;
 
+import android.graphics.Color;
+
 /** Current terminal colors (if different from default). */
 public final class TerminalColors {
 
@@ -73,4 +75,22 @@ public final class TerminalColors {
         if (c != 0) mCurrentColors[intoIndex] = c;
     }
 
+    /**
+     * Get the perceived brightness of the color based on its RGB components.
+     *
+     * https://www.nbdtech.com/Blog/archive/2008/04/27/Calculating-the-Perceived-Brightness-of-a-Color.aspx
+     * http://alienryderflex.com/hsp.html
+     *
+     * @param color The color code int.
+     * @return Returns value between 0-255.
+     */
+    public static int getPerceivedBrightnessOfColor(int color) {
+        return (int)
+            Math.floor(Math.sqrt(
+                Math.pow(Color.red(color), 2) * 0.241 +
+                    Math.pow(Color.green(color), 2) * 0.691 +
+                    Math.pow(Color.blue(color), 2) * 0.068
+            ));
+    }
+
 }

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

@@ -79,9 +79,17 @@ public final class TerminalEmulator {
     private static final int ESC_CSI_SINGLE_QUOTE = 18;
     /** Escape processing: CSI ! */
     private static final int ESC_CSI_EXCLAMATION = 19;
+    /** Escape processing: "ESC _" or Application Program Command (APC). */
+    private static final int ESC_APC = 20;
+    /** Escape processing: "ESC _" or Application Program Command (APC), followed by Escape. */
+    private static final int ESC_APC_ESCAPE = 21;
+    /** Escape processing: ESC [ <parameter bytes> */
+    private static final int ESC_CSI_UNSUPPORTED_PARAMETER_BYTE = 22;
+    /** Escape processing: ESC [ <parameter bytes> <intermediate bytes> */
+    private static final int ESC_CSI_UNSUPPORTED_INTERMEDIATE_BYTE = 23;
 
-    /** The number of parameter arguments. This name comes from the ANSI standard for terminal escape codes. */
-    private static final int MAX_ESCAPE_PARAMETERS = 16;
+    /** The number of parameter arguments including colon separated sub-parameters. */
+    private static final int MAX_ESCAPE_PARAMETERS = 32;
 
     /** Needs to be large enough to contain reasonable OSC 52 pastes. */
     private static final int MAX_OSC_STRING_LENGTH = 8192;
@@ -126,13 +134,15 @@ public final class TerminalEmulator {
     private String mTitle;
     private final Stack<String> mTitleStack = new Stack<>();
 
-
     /** The cursor position. Between (0,0) and (mRows-1, mColumns-1). */
     private int mCursorRow, mCursorCol;
 
     /** The number of character rows and columns in the terminal screen. */
     public int mRows, mColumns;
 
+    /** Size of a terminal cell in pixels. */
+    private int mCellWidthPixels, mCellHeightPixels;
+
     /** The number of terminal transcript rows that can be scrolled back to. */
     public static final int TERMINAL_TRANSCRIPT_ROWS_MIN = 100;
     public static final int TERMINAL_TRANSCRIPT_ROWS_MAX = 50000;
@@ -172,6 +182,8 @@ public final class TerminalEmulator {
     private int mArgIndex;
     /** Holds the arguments of the current escape sequence. */
     private final int[] mArgs = new int[MAX_ESCAPE_PARAMETERS];
+    /** Holds the bit flags which arguments are sub parameters (after a colon) - bit N is set if <code>mArgs[N]</code> is a sub parameter. */
+    private int mArgsSubParamsBitSet = 0;
 
     /** Holds OSC and device control arguments, which can be strings. */
     private final StringBuilder mOSCOrDeviceControlArgs = new StringBuilder();
@@ -232,15 +244,17 @@ public final class TerminalEmulator {
     private boolean mCursorBlinkState;
 
     /**
-     * Current foreground and background colors. Can either be a color index in [0,259] or a truecolor (24-bit) value.
+     * Current foreground, background and underline colors. Can either be a color index in [0,259] or a truecolor (24-bit) value.
      * For a 24-bit value the top byte (0xff000000) is set.
      *
+     * <p>Note that the underline color is currently parsed but not yet used during rendering.
+     *
      * @see TextStyle
      */
-    int mForeColor, mBackColor;
+    int mForeColor, mBackColor, mUnderlineColor;
 
     /** Current {@link TextStyle} effect. */
-    private int mEffect;
+    int mEffect;
 
     /**
      * The number of scrolled lines since last calling {@link #clearScrollCounter()}. Used for moving selection up along
@@ -308,13 +322,15 @@ public final class TerminalEmulator {
         }
     }
 
-    public TerminalEmulator(TerminalOutput session, int columns, int rows, Integer transcriptRows, TerminalSessionClient client) {
+    public TerminalEmulator(TerminalOutput session, int columns, int rows, int cellWidthPixels, int cellHeightPixels, Integer transcriptRows, TerminalSessionClient client) {
         mSession = session;
         mScreen = mMainBuffer = new TerminalBuffer(columns, getTerminalTranscriptRows(transcriptRows), rows);
         mAltBuffer = new TerminalBuffer(columns, rows, rows);
         mClient = client;
         mRows = rows;
         mColumns = columns;
+        mCellWidthPixels = cellWidthPixels;
+        mCellHeightPixels = cellHeightPixels;
         mTabStop = new boolean[mColumns];
         reset();
     }
@@ -364,7 +380,10 @@ public final class TerminalEmulator {
         }
     }
 
-    public void resize(int columns, int rows) {
+    public void resize(int columns, int rows, int cellWidthPixels, int cellHeightPixels) {
+        this.mCellWidthPixels = cellWidthPixels;
+        this.mCellHeightPixels = cellHeightPixels;
+
         if (mRows == rows && mColumns == columns) {
             return;
         } else if (columns < 2 || rows < 2) {
@@ -546,6 +565,15 @@ public final class TerminalEmulator {
     }
 
     public void processCodePoint(int b) {
+        // The Application Program-Control (APC) string might be arbitrary non-printable characters, so handle that early.
+        if (mEscapeState == ESC_APC) {
+            doApc(b);
+            return;
+        } else if (mEscapeState == ESC_APC_ESCAPE) {
+            doApcEscape(b);
+            return;
+        }
+
         switch (b) {
             case 0: // Null character (NUL, ^@). Do nothing.
                 break;
@@ -631,6 +659,10 @@ public final class TerminalEmulator {
                     case ESC_CSI:
                         doCsi(b);
                         break;
+                    case ESC_CSI_UNSUPPORTED_PARAMETER_BYTE:
+                    case ESC_CSI_UNSUPPORTED_INTERMEDIATE_BYTE:
+                        doCsiUnsupportedParameterOrIntermediateByte(b);
+                        break;
                     case ESC_CSI_EXCLAMATION:
                         if (b == 'p') { // Soft terminal reset (DECSTR, http://vt100.net/docs/vt510-rm/DECSTR).
                             reset();
@@ -796,7 +828,6 @@ public final class TerminalEmulator {
                             int columnsToDelete = Math.min(getArg0(1), columnsAfterCursor);
                             int columnsToMove = columnsAfterCursor - columnsToDelete;
                             mScreen.blockCopy(mCursorCol + columnsToDelete, 0, columnsToMove, mRows, mCursorCol, 0);
-                            blockClear(mCursorRow + columnsToMove, 0, columnsToDelete, mRows);
                         } else {
                             unknownSequence(b);
                         }
@@ -825,7 +856,7 @@ public final class TerminalEmulator {
                                 if (internalBit != -1) {
                                     value = isDecsetInternalBitSet(internalBit) ? 1 : 2; // 1=set, 2=reset.
                                 } else {
-                                    mClient.logError(LOG_TAG, "Got DECRQM for unrecognized private DEC mode=" + mode);
+                                    Logger.logError(mClient, LOG_TAG, "Got DECRQM for unrecognized private DEC mode=" + mode);
                                     value = 0; // 0=not recognized, 3=permanently set, 4=permanently reset
                                 }
                             }
@@ -936,10 +967,17 @@ public final class TerminalEmulator {
                     for (String part : dcs.substring(2).split(";")) {
                         if (part.length() % 2 == 0) {
                             StringBuilder transBuffer = new StringBuilder();
+                            char c;
                             for (int i = 0; i < part.length(); i += 2) {
-                                char c = (char) Long.decode("0x" + part.charAt(i) + "" + part.charAt(i + 1)).longValue();
+                                try {
+                                    c = (char) Long.decode("0x" + part.charAt(i) + "" + part.charAt(i + 1)).longValue();
+                                } catch (NumberFormatException e) {
+                                    Logger.logStackTraceWithMessage(mClient, LOG_TAG, "Invalid device termcap/terminfo encoded name \"" + part + "\"", e);
+                                    continue;
+                                }
                                 transBuffer.append(c);
                             }
+
                             String trans = transBuffer.toString();
                             String responseValue;
                             switch (trans) {
@@ -962,7 +1000,7 @@ public final class TerminalEmulator {
                                     case "&8": // Undo key - ignore.
                                         break;
                                     default:
-                                        mClient.logWarn(LOG_TAG, "Unhandled termcap/terminfo name: '" + trans + "'");
+                                        Logger.logWarn(mClient, LOG_TAG, "Unhandled termcap/terminfo name: '" + trans + "'");
                                 }
                                 // Respond with invalid request:
                                 mSession.write("\033P0+r" + part + "\033\\");
@@ -974,12 +1012,12 @@ public final class TerminalEmulator {
                                 mSession.write("\033P1+r" + part + "=" + hexEncoded + "\033\\");
                             }
                         } else {
-                            mClient.logError(LOG_TAG, "Invalid device termcap/terminfo name of odd length: " + part);
+                            Logger.logError(mClient, LOG_TAG, "Invalid device termcap/terminfo name of odd length: " + part);
                         }
                     }
                 } else {
                     if (LOG_ESCAPE_SEQUENCES)
-                        mClient.logError(LOG_TAG, "Unrecognized device control string: " + dcs);
+                        Logger.logError(mClient, LOG_TAG, "Unrecognized device control string: " + dcs);
                 }
                 finishSequence();
             }
@@ -996,12 +1034,67 @@ public final class TerminalEmulator {
         }
     }
 
+    /**
+     * When in {@link #ESC_APC} (APC, Application Program Command) sequence.
+     */
+    private void doApc(int b) {
+        if (b == 27) {
+            continueSequence(ESC_APC_ESCAPE);
+        }
+        // Eat APC sequences silently for now.
+    }
+
+    /**
+     * When in {@link #ESC_APC} (APC, Application Program Command) sequence.
+     */
+    private void doApcEscape(int b) {
+        if (b == '\\') {
+            // A String Terminator (ST), ending the APC escape sequence.
+            finishSequence();
+        } else {
+            // The Escape character was not the start of a String Terminator (ST),
+            // but instead just data inside of the APC escape sequence.
+            continueSequence(ESC_APC);
+        }
+    }
+
     private int nextTabStop(int numTabs) {
         for (int i = mCursorCol + 1; i < mColumns; i++)
             if (mTabStop[i] && --numTabs == 0) return Math.min(i, mRightMargin);
         return mRightMargin - 1;
     }
 
+    /**
+     * Process byte while in the {@link #ESC_CSI_UNSUPPORTED_PARAMETER_BYTE} or
+     * {@link #ESC_CSI_UNSUPPORTED_INTERMEDIATE_BYTE} escape state.
+     *
+     * Parse unsupported parameter, intermediate and final bytes but ignore them.
+     *
+     * > For Control Sequence Introducer, ... the ESC [ is followed by
+     * > - any number (including none) of "parameter bytes" in the range 0x30–0x3F (ASCII 0–9:;<=>?),
+     * > - then by any number of "intermediate bytes" in the range 0x20–0x2F (ASCII space and !"#$%&'()*+,-./),
+     * > - then finally by a single "final byte" in the range 0x40–0x7E (ASCII @A–Z[\]^_`a–z{|}~).
+     *
+     * - https://en.wikipedia.org/wiki/ANSI_escape_code#Control_Sequence_Introducer_commands
+     * - https://invisible-island.net/xterm/ecma-48-parameter-format.html#section5.4
+     */
+    private void doCsiUnsupportedParameterOrIntermediateByte(int b) {
+        if (mEscapeState == ESC_CSI_UNSUPPORTED_PARAMETER_BYTE && b >= 0x30 && b <= 0x3F) {
+            // Supported `0–9:;>?` or unsupported `<=` parameter byte after an
+            // initial unsupported parameter byte in `doCsi()`, or a sequential parameter byte.
+            continueSequence(ESC_CSI_UNSUPPORTED_PARAMETER_BYTE);
+        } else if (b >= 0x20 && b <= 0x2F) {
+            // Optional intermediate byte `!"#$%&'()*+,-./` after parameter or intermediate byte.
+            continueSequence(ESC_CSI_UNSUPPORTED_INTERMEDIATE_BYTE);
+        } else if (b >= 0x40 && b <= 0x7E) {
+            // Final byte `@A–Z[\]^_`a–z{|}~` after parameter or intermediate byte.
+            // Calling `unknownSequence()` would log an error with only a final byte, so ignore it for now.
+            finishSequence();
+        } else {
+            unknownSequence(b);
+        }
+    }
+
     /** Process byte while in the {@link #ESC_CSI_QUESTIONMARK} escape state. */
     private void doCsiQuestionMark(int b) {
         switch (b) {
@@ -1069,7 +1162,7 @@ public final class TerminalEmulator {
                     int externalBit = mArgs[i];
                     int internalBit = mapDecSetBitToInternalBit(externalBit);
                     if (internalBit == -1) {
-                        mClient.logWarn(LOG_TAG, "Ignoring request to save/recall decset bit=" + externalBit);
+                        Logger.logWarn(mClient, LOG_TAG, "Ignoring request to save/recall decset bit=" + externalBit);
                     } else {
                         if (b == 's') {
                             mSavedDecSetFlags |= internalBit;
@@ -1259,7 +1352,7 @@ public final class TerminalEmulator {
                 // (1) enables this feature for keys except for those with well-known behavior, e.g., Tab, Backarrow and
                 // some special control character cases, e.g., Control-Space to make a NUL.
                 // (2) enables this feature for keys including the exceptions listed.
-                mClient.logError(LOG_TAG, "(ignored) CSI > MODIFY RESOURCE: " + getArg0(-1) + " to " + getArg1(-1));
+                Logger.logError(mClient, LOG_TAG, "(ignored) CSI > MODIFY RESOURCE: " + getArg0(-1) + " to " + getArg1(-1));
                 break;
             default:
                 parseArg(b);
@@ -1271,6 +1364,7 @@ public final class TerminalEmulator {
         mEscapeState = ESC;
         mArgIndex = 0;
         Arrays.fill(mArgs, -1);
+        mArgsSubParamsBitSet = 0;
     }
 
     private void doLinefeed() {
@@ -1365,8 +1459,8 @@ public final class TerminalEmulator {
                 // http://www.vt100.net/docs/vt100-ug/chapter3.html: "Move the active position to the same horizontal
                 // position on the preceding line. If the active position is at the top margin, a scroll down is performed".
                 if (mCursorRow <= mTopMargin) {
-                    mScreen.blockCopy(0, mTopMargin, mColumns, mBottomMargin - (mTopMargin + 1), 0, mTopMargin + 1);
-                    blockClear(0, mTopMargin, mColumns);
+                    mScreen.blockCopy(mLeftMargin, mTopMargin, mRightMargin - mLeftMargin, mBottomMargin - (mTopMargin + 1), mLeftMargin, mTopMargin + 1);
+                    blockClear(mLeftMargin, mTopMargin, mRightMargin - mLeftMargin);
                 } else {
                     mCursorRow--;
                 }
@@ -1391,6 +1485,9 @@ public final class TerminalEmulator {
             case '>': // DECKPNM
                 setDecsetinternalBit(DECSET_BIT_APPLICATION_KEYPAD, false);
                 break;
+            case '_': // APC - Application Program Command.
+                continueSequence(ESC_APC);
+                break;
             default:
                 unknownSequence(b);
                 break;
@@ -1572,8 +1669,8 @@ public final class TerminalEmulator {
                     final int linesToScrollArg = getArg0(1);
                     final int linesBetweenTopAndBottomMargins = mBottomMargin - mTopMargin;
                     final int linesToScroll = Math.min(linesBetweenTopAndBottomMargins, linesToScrollArg);
-                    mScreen.blockCopy(0, mTopMargin, mColumns, linesBetweenTopAndBottomMargins - linesToScroll, 0, mTopMargin + linesToScroll);
-                    blockClear(0, mTopMargin, mColumns, linesToScroll);
+                    mScreen.blockCopy(mLeftMargin, mTopMargin, mRightMargin - mLeftMargin, linesBetweenTopAndBottomMargins - linesToScroll, mLeftMargin, mTopMargin + linesToScroll);
+                    blockClear(mLeftMargin, mTopMargin, mRightMargin - mLeftMargin, linesToScroll);
                 } else {
                     // "${CSI}${func};${startx};${starty};${firstrow};${lastrow}T" - initiate highlight mouse tracking.
                     unimplementedSequence(b);
@@ -1595,12 +1692,16 @@ public final class TerminalEmulator {
                     }
                 mCursorCol = newCol;
                 break;
-            case '?': // Esc [ ? -- start of a private mode set
+            case '?': // Esc [ ? -- start of a private parameter byte
                 continueSequence(ESC_CSI_QUESTIONMARK);
                 break;
-            case '>': // "Esc [ >" --
+            case '>': // "Esc [ >" -- start of a private parameter byte
                 continueSequence(ESC_CSI_BIGGERTHAN);
                 break;
+            case '<': // "Esc [ <" -- start of a private parameter byte
+            case '=': // "Esc [ =" -- start of a private parameter byte
+                continueSequence(ESC_CSI_UNSUPPORTED_PARAMETER_BYTE);
+                break;
             case '`': // Horizontal position absolute (HPA - http://www.vt100.net/docs/vt510-rm/HPA).
                 setCursorColRespectingOriginMode(getArg0(1) - 1);
                 break;
@@ -1700,8 +1801,10 @@ public final class TerminalEmulator {
                         mSession.write("\033[3;0;0t");
                         break;
                     case 14: // Report xterm window in pixels. Result is CSI 4 ; height ; width t
-                        // We just report characters time 12 here.
-                        mSession.write(String.format(Locale.US, "\033[4;%d;%dt", mRows * 12, mColumns * 12));
+                        mSession.write(String.format(Locale.US, "\033[4;%d;%dt", mRows * mCellHeightPixels, mColumns * mCellWidthPixels));
+                        break;
+                    case 16: // Report xterm character cell size in pixels. Result is CSI 6 ; height ; width t
+                        mSession.write(String.format(Locale.US, "\033[6;%d;%dt", mCellHeightPixels, mCellWidthPixels));
                         break;
                     case 18: // Report the size of the text area in characters. Result is CSI 8 ; height ; width t
                         mSession.write(String.format(Locale.US, "\033[8;%d;%dt", mRows, mColumns));
@@ -1750,7 +1853,12 @@ public final class TerminalEmulator {
     private void selectGraphicRendition() {
         if (mArgIndex >= mArgs.length) mArgIndex = mArgs.length - 1;
         for (int i = 0; i <= mArgIndex; i++) {
-            int code = mArgs[i];
+            // Skip leading sub parameters:
+            if ((mArgsSubParamsBitSet & (1 << i)) != 0) {
+                continue;
+            }
+
+            int code = getArg(i, 0, false);
             if (code < 0) {
                 if (mArgIndex > 0) {
                     continue;
@@ -1769,7 +1877,19 @@ public final class TerminalEmulator {
             } else if (code == 3) {
                 mEffect |= TextStyle.CHARACTER_ATTRIBUTE_ITALIC;
             } else if (code == 4) {
-                mEffect |= TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE;
+                if (i + 1 <= mArgIndex && ((mArgsSubParamsBitSet & (1 << (i + 1))) != 0)) {
+                    // Sub parameter, see https://sw.kovidgoyal.net/kitty/underlines/
+                    i++;
+                    if (mArgs[i] == 0) {
+                        // No underline.
+                        mEffect &= ~TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE;
+                    } else {
+                        // Different variations of underlines: https://sw.kovidgoyal.net/kitty/underlines/
+                        mEffect |= TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE;
+                    }
+                } else {
+                    mEffect |= TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE;
+                }
             } else if (code == 5) {
                 mEffect |= TextStyle.CHARACTER_ATTRIBUTE_BLINK;
             } else if (code == 7) {
@@ -1798,40 +1918,43 @@ public final class TerminalEmulator {
                 mEffect &= ~TextStyle.CHARACTER_ATTRIBUTE_STRIKETHROUGH;
             } else if (code >= 30 && code <= 37) {
                 mForeColor = code - 30;
-            } else if (code == 38 || code == 48) {
-                // Extended set foreground(38)/background (48) color.
+            } else if (code == 38 || code == 48 || code == 58) {
+                // Extended set foreground(38)/background(48)/underline(58) color.
                 // This is followed by either "2;$R;$G;$B" to set a 24-bit color or
                 // "5;$INDEX" to set an indexed color.
                 if (i + 2 > mArgIndex) continue;
                 int firstArg = mArgs[i + 1];
                 if (firstArg == 2) {
                     if (i + 4 > mArgIndex) {
-                        mClient.logWarn(LOG_TAG, "Too few CSI" + code + ";2 RGB arguments");
+                        Logger.logWarn(mClient, LOG_TAG, "Too few CSI" + code + ";2 RGB arguments");
                     } else {
-                        int red = mArgs[i + 2], green = mArgs[i + 3], blue = mArgs[i + 4];
+                        int red = getArg(i + 2, 0, false);
+                        int green = getArg(i + 3, 0, false);
+                        int blue = getArg(i + 4, 0, false);
+
                         if (red < 0 || green < 0 || blue < 0 || red > 255 || green > 255 || blue > 255) {
                             finishSequenceAndLogError("Invalid RGB: " + red + "," + green + "," + blue);
                         } else {
-                            int argbColor = 0xff000000 | (red << 16) | (green << 8) | blue;
-                            if (code == 38) {
-                                mForeColor = argbColor;
-                            } else {
-                                mBackColor = argbColor;
+                            int argbColor = 0xff_00_00_00 | (red << 16) | (green << 8) | blue;
+                            switch (code) {
+                                case 38: mForeColor = argbColor; break;
+                                case 48: mBackColor = argbColor; break;
+                                case 58: mUnderlineColor = argbColor; break;
                             }
                         }
                         i += 4; // "2;P_r;P_g;P_r"
                     }
                 } else if (firstArg == 5) {
-                    int color = mArgs[i + 2];
+                    int color = getArg(i + 2, 0, false);
                     i += 2; // "5;P_s"
                     if (color >= 0 && color < TextStyle.NUM_INDEXED_COLORS) {
-                        if (code == 38) {
-                            mForeColor = color;
-                        } else {
-                            mBackColor = color;
+                        switch (code) {
+                            case 38: mForeColor = color; break;
+                            case 48: mBackColor = color; break;
+                            case 58: mUnderlineColor = color; break;
                         }
                     } else {
-                        if (LOG_ESCAPE_SEQUENCES) mClient.logWarn(LOG_TAG, "Invalid color index: " + color);
+                        if (LOG_ESCAPE_SEQUENCES) Logger.logWarn(mClient, LOG_TAG, "Invalid color index: " + color);
                     }
                 } else {
                     finishSequenceAndLogError("Invalid ISO-8613-3 SGR first argument: " + firstArg);
@@ -1842,13 +1965,15 @@ public final class TerminalEmulator {
                 mBackColor = code - 40;
             } else if (code == 49) { // Set default background color.
                 mBackColor = TextStyle.COLOR_INDEX_BACKGROUND;
+            } else if (code == 59) { // Set default underline color.
+                mUnderlineColor = TextStyle.COLOR_INDEX_FOREGROUND;
             } else if (code >= 90 && code <= 97) { // Bright foreground colors (aixterm codes).
                 mForeColor = code - 90 + 8;
             } else if (code >= 100 && code <= 107) { // Bright background color (aixterm codes).
                 mBackColor = code - 100 + 8;
             } else {
                 if (LOG_ESCAPE_SEQUENCES)
-                    mClient.logWarn(LOG_TAG, String.format("SGR unknown code %d", code));
+                    Logger.logWarn(mClient, LOG_TAG, String.format("SGR unknown code %d", code));
             }
         }
     }
@@ -1982,7 +2107,7 @@ public final class TerminalEmulator {
                     String clipboardText = new String(Base64.decode(textParameter.substring(startIndex), 0), StandardCharsets.UTF_8);
                     mSession.onCopyTextToClipboard(clipboardText);
                 } catch (Exception e) {
-                    mClient.logError(LOG_TAG, "OSC Manipulate selection, invalid string '" + textParameter + "");
+                    Logger.logError(mClient, LOG_TAG, "OSC Manipulate selection, invalid string '" + textParameter + "");
                 }
                 break;
             case 104:
@@ -2077,17 +2202,36 @@ public final class TerminalEmulator {
 
     private void scrollDownOneLine() {
         mScrollCounter++;
+        long currentStyle = getStyle();
         if (mLeftMargin != 0 || mRightMargin != mColumns) {
             // Horizontal margin: Do not put anything into scroll history, just non-margin part of screen up.
             mScreen.blockCopy(mLeftMargin, mTopMargin + 1, mRightMargin - mLeftMargin, mBottomMargin - mTopMargin - 1, mLeftMargin, mTopMargin);
             // .. and blank bottom row between margins:
-            mScreen.blockSet(mLeftMargin, mBottomMargin - 1, mRightMargin - mLeftMargin, 1, ' ', mEffect);
+            mScreen.blockSet(mLeftMargin, mBottomMargin - 1, mRightMargin - mLeftMargin, 1, ' ', currentStyle);
         } else {
-            mScreen.scrollDownOneLine(mTopMargin, mBottomMargin, getStyle());
+            mScreen.scrollDownOneLine(mTopMargin, mBottomMargin, currentStyle);
         }
     }
 
-    /** Process the next ASCII character of a parameter. */
+    /**
+     * Process the next ASCII character of a parameter.
+     *
+     * <p>You must use the ; character to separate parameters and : to separate sub-parameters.
+     *
+     * <p>Parameter characters modify the action or interpretation of the sequence. Originally
+     * you can use up to 16 parameters per sequence, but following at least xterm and alacritty
+     * we use a common space for parameters and sub-parameters, allowing 32 in total.
+     *
+     * <p>All parameters are unsigned, positive decimal integers, with the most significant
+     * digit sent first. Any parameter greater than 9999 (decimal) is set to 9999
+     * (decimal). If you do not specify a value, a 0 value is assumed. A 0 value
+     * or omitted parameter indicates a default value for the sequence. For most
+     * sequences, the default value is 1.
+     *
+     * <p>References:
+     * <a href="https://vt100.net/docs/vt510-rm/chapter4.html#S4.3.3">VT510 Video Terminal Programmer Information: Control Sequences</a>
+     * <a href="https://github.com/alacritty/vte/issues/22">alacritty/vte: Implement colon separated CSI parameters</a>
+     * */
     private void parseArg(int b) {
         if (b >= '0' && b <= '9') {
             if (mArgIndex < mArgs.length) {
@@ -2099,12 +2243,19 @@ public final class TerminalEmulator {
                 } else {
                     value = thisDigit;
                 }
+                if (value > 9999)
+                    value = 9999;
                 mArgs[mArgIndex] = value;
             }
             continueSequence(mEscapeState);
-        } else if (b == ';') {
-            if (mArgIndex < mArgs.length) {
+        } else if (b == ';' || b == ':') {
+            if (mArgIndex + 1 < mArgs.length) {
                 mArgIndex++;
+                if (b == ':') {
+                    mArgsSubParamsBitSet |= 1 << mArgIndex;
+                }
+            } else {
+                logError("Too many parameters when in state: " + mEscapeState);
             }
             continueSequence(mEscapeState);
         } else {
@@ -2178,7 +2329,7 @@ public final class TerminalEmulator {
     }
 
     private void finishSequenceAndLogError(String error) {
-        if (LOG_ESCAPE_SEQUENCES) mClient.logWarn(LOG_TAG, error);
+        if (LOG_ESCAPE_SEQUENCES) Logger.logWarn(mClient, LOG_TAG, error);
         finishSequence();
     }
 
@@ -2326,7 +2477,14 @@ public final class TerminalEmulator {
         }
 
         int offsetDueToCombiningChar = ((displayWidth <= 0 && mCursorCol > 0 && !mAboutToAutoWrap) ? 1 : 0);
-        mScreen.setChar(mCursorCol - offsetDueToCombiningChar, mCursorRow, codePoint, getStyle());
+        int column = mCursorCol - offsetDueToCombiningChar;
+
+        // Fix TerminalRow.setChar() ArrayIndexOutOfBoundsException index=-1 exception reported
+        // The offsetDueToCombiningChar would never be 1 if mCursorCol was 0 to get column/index=-1,
+        // so was mCursorCol changed after the offsetDueToCombiningChar conditional by another thread?
+        // TODO: Check if there are thread synchronization issues with mCursorCol and mCursorRow, possibly causing others bugs too.
+        if (column < 0) column = 0;
+        mScreen.setChar(column, mCursorRow, codePoint, getStyle());
 
         if (autoWrap && displayWidth > 0)
             mAboutToAutoWrap = (mCursorCol == mRightMargin - displayWidth);

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

@@ -11,11 +11,37 @@ public final class TerminalRow {
 
     private static final float SPARE_CAPACITY_FACTOR = 1.5f;
 
+    /**
+     * Max combining characters that can exist in a column, that are separate from the base character
+     * itself. Any additional combining characters will be ignored and not added to the column.
+     *
+     * There does not seem to be limit in unicode standard for max number of combination characters
+     * that can be combined but such characters are primarily under 10.
+     *
+     * "Section 3.6 Combination" of unicode standard contains combining characters info.
+     * - https://www.unicode.org/versions/Unicode15.0.0/ch03.pdf
+     * - https://en.wikipedia.org/wiki/Combining_character#Unicode_ranges
+     * - https://stackoverflow.com/questions/71237212/what-is-the-maximum-number-of-unicode-combined-characters-that-may-be-needed-to
+     *
+     * UAX15-D3 Stream-Safe Text Format limits to max 30 combining characters.
+     * > The value of 30 is chosen to be significantly beyond what is required for any linguistic or technical usage.
+     * > While it would have been feasible to chose a smaller number, this value provides a very wide margin,
+     * > yet is well within the buffer size limits of practical implementations.
+     * - https://unicode.org/reports/tr15/#Stream_Safe_Text_Format
+     * - https://stackoverflow.com/a/11983435/14686958
+     *
+     * We choose the value 15 because it should be enough for terminal based applications and keep
+     * the memory usage low for a terminal row, won't affect performance or cause terminal to
+     * lag or hang, and will keep malicious applications from causing harm. The value can be
+     * increased if ever needed for legitimate applications.
+     */
+    private static final int MAX_COMBINING_CHARACTERS_PER_COLUMN = 15;
+
     /** The number of columns in this terminal row. */
     private final int mColumns;
     /** The text filling this terminal row. */
     public char[] mText;
-    /** The number of java char:s used in {@link #mText}. */
+    /** The number of java chars used in {@link #mText}. */
     private short mSpaceUsed;
     /** If this row has been line wrapped due to text output at the end of line. */
     boolean mLineWrap;
@@ -124,6 +150,9 @@ public final class TerminalRow {
 
     // https://github.com/steven676/Android-Terminal-Emulator/commit/9a47042620bec87617f0b4f5d50568535668fe26
     public void setChar(int columnToSet, int codePoint, long style) {
+        if (columnToSet  < 0 || columnToSet >= mStyle.length)
+            throw new IllegalArgumentException("TerminalRow.setChar(): columnToSet=" + columnToSet + ", codePoint=" + codePoint + ", style=" + style);
+
         mStyle[columnToSet] = style;
 
         final int newCodePointDisplayWidth = WcWidth.width(codePoint);
@@ -160,18 +189,25 @@ public final class TerminalRow {
         // Get the number of elements in the mText array this column uses now
         int oldCharactersUsedForColumn;
         if (columnToSet + oldCodePointDisplayWidth < mColumns) {
-            oldCharactersUsedForColumn = findStartOfColumn(columnToSet + oldCodePointDisplayWidth) - oldStartOfColumnIndex;
+            int oldEndOfColumnIndex = findStartOfColumn(columnToSet + oldCodePointDisplayWidth);
+            oldCharactersUsedForColumn = oldEndOfColumnIndex - oldStartOfColumnIndex;
         } else {
             // Last character.
             oldCharactersUsedForColumn = mSpaceUsed - oldStartOfColumnIndex;
         }
 
+        // If MAX_COMBINING_CHARACTERS_PER_COLUMN already exist in column, then ignore adding additional combining characters.
+        if (newIsCombining) {
+            int combiningCharsCount = WcWidth.zeroWidthCharsCount(mText, oldStartOfColumnIndex, oldStartOfColumnIndex + oldCharactersUsedForColumn);
+            if (combiningCharsCount >= MAX_COMBINING_CHARACTERS_PER_COLUMN)
+                return;
+        }
+
         // Find how many chars this column will need
         int newCharactersUsedForColumn = Character.charCount(codePoint);
         if (newIsCombining) {
             // Combining characters are added to the contents of the column instead of overwriting them, so that they
             // modify the existing contents.
-            // FIXME: Put a limit of combining characters.
             // FIXME: Unassigned characters also get width=0.
             newCharactersUsedForColumn += oldCharactersUsedForColumn;
         }
@@ -186,7 +222,7 @@ public final class TerminalRow {
             if (mSpaceUsed + javaCharDifference > text.length) {
                 // We need to grow the array
                 char[] newText = new char[text.length + mColumns];
-                System.arraycopy(text, 0, newText, 0, oldStartOfColumnIndex + oldCharactersUsedForColumn);
+                System.arraycopy(text, 0, newText, 0, oldNextColumnIndex);
                 System.arraycopy(text, oldNextColumnIndex, newText, newNextColumnIndex, oldCharactersAfterColumn);
                 mText = text = newText;
             } else {

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

@@ -21,7 +21,7 @@ import java.util.UUID;
  * A terminal session, consisting of a process coupled to a terminal interface.
  * <p>
  * The subprocess will be executed by the constructor, and when the size is made known by a call to
- * {@link #updateSize(int, int)} terminal emulation will begin and threads will be spawned to handle the subprocess I/O.
+ * {@link #updateSize(int, int, int, int)} terminal emulation will begin and threads will be spawned to handle the subprocess I/O.
  * All terminal emulation and callback methods will be performed on the main thread.
  * <p>
  * The child process may be exited forcefully by using the {@link #finishIfRunning()} method.
@@ -61,7 +61,7 @@ public final class TerminalSession extends TerminalOutput {
 
     /**
      * The file descriptor referencing the master half of a pseudo-terminal pair, resulting from calling
-     * {@link JNI#createSubprocess(String, String, String[], String[], int[], int, int)}.
+     * {@link JNI#createSubprocess(String, String, String[], String[], int[], int, int, int, int)}.
      */
     private int mTerminalFileDescriptor;
 
@@ -100,12 +100,12 @@ public final class TerminalSession extends TerminalOutput {
     }
 
     /** Inform the attached pty of the new size and reflow or initialize the emulator. */
-    public void updateSize(int columns, int rows) {
+    public void updateSize(int columns, int rows, int cellWidthPixels, int cellHeightPixels) {
         if (mEmulator == null) {
-            initializeEmulator(columns, rows);
+            initializeEmulator(columns, rows, cellWidthPixels, cellHeightPixels);
         } else {
-            JNI.setPtyWindowSize(mTerminalFileDescriptor, rows, columns);
-            mEmulator.resize(columns, rows);
+            JNI.setPtyWindowSize(mTerminalFileDescriptor, rows, columns, cellWidthPixels, cellHeightPixels);
+            mEmulator.resize(columns, rows, cellWidthPixels, cellHeightPixels);
         }
     }
 
@@ -120,11 +120,11 @@ public final class TerminalSession extends TerminalOutput {
      * @param columns The number of columns in the terminal window.
      * @param rows    The number of rows in the terminal window.
      */
-    public void initializeEmulator(int columns, int rows) {
-        mEmulator = new TerminalEmulator(this, columns, rows, mTranscriptRows, mClient);
+    public void initializeEmulator(int columns, int rows, int cellWidthPixels, int cellHeightPixels) {
+        mEmulator = new TerminalEmulator(this, columns, rows, cellWidthPixels, cellHeightPixels, mTranscriptRows, mClient);
 
         int[] processId = new int[1];
-        mTerminalFileDescriptor = JNI.createSubprocess(mShellPath, mCwd, mArgs, mEnv, processId, rows, columns);
+        mTerminalFileDescriptor = JNI.createSubprocess(mShellPath, mCwd, mArgs, mEnv, processId, rows, columns, cellWidthPixels, cellHeightPixels);
         mShellPid = processId[0];
 
         final FileDescriptor terminalFileDescriptorWrapped = wrapFileDescriptor(mTerminalFileDescriptor, mClient);
@@ -236,7 +236,7 @@ public final class TerminalSession extends TerminalOutput {
             try {
                 Os.kill(mShellPid, OsConstants.SIGKILL);
             } catch (ErrnoException e) {
-                mClient.logWarn(LOG_TAG, "Failed sending SIGKILL: " + e.getMessage());
+                Logger.logWarn(mClient, LOG_TAG, "Failed sending SIGKILL: " + e.getMessage());
             }
         }
     }
@@ -308,7 +308,7 @@ public final class TerminalSession extends TerminalOutput {
                 return outputPath;
             }
         } catch (IOException | SecurityException e) {
-            mClient.logStackTraceWithMessage(LOG_TAG, "Error getting current directory", e);
+            Logger.logStackTraceWithMessage(mClient, LOG_TAG, "Error getting current directory", e);
         }
         return null;
     }
@@ -326,7 +326,7 @@ public final class TerminalSession extends TerminalOutput {
             descriptorField.setAccessible(true);
             descriptorField.set(result, fileDescriptor);
         } catch (NoSuchFieldException | IllegalAccessException | IllegalArgumentException e) {
-            client.logStackTraceWithMessage(LOG_TAG, "Error accessing FileDescriptor#descriptor private field", e);
+            Logger.logStackTraceWithMessage(client, LOG_TAG, "Error accessing FileDescriptor#descriptor private field", e);
             System.exit(1);
         }
         return result;

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

@@ -1,7 +1,7 @@
 package com.termux.terminal;
 
 /**
- * Implementation of wcwidth(3) for Unicode 9.
+ * Implementation of wcwidth(3) for Unicode 15.
  *
  * Implementation from https://github.com/jquast/wcwidth but we return 0 for unprintable characters.
  *
@@ -9,12 +9,13 @@ package com.termux.terminal;
  * 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
+ * https://github.com/termux/termux-packages/tree/master/packages/libandroid-support
  */
 public final class WcWidth {
 
     // From https://github.com/jquast/wcwidth/blob/master/wcwidth/table_zero.py
-    // at commit b29897e5a1b403a0e36f7fc991614981cbc42475 (2020-07-14):
+    // from https://github.com/jquast/wcwidth/pull/64
+    // at commit 1b9b6585b0080ea5cb88dc9815796505724793fe (2022-12-16):
     private static final int[][] ZERO_WIDTH = {
         {0x00300, 0x0036f},  // Combining Grave Accent  ..Combining Latin Small Le
         {0x00483, 0x00489},  // Combining Cyrillic Titlo..Combining Cyrillic Milli
@@ -40,7 +41,8 @@ public final class WcWidth {
         {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
+        {0x00898, 0x0089f},  // Arabic Small High Word A..Arabic Half Madda Over M
+        {0x008ca, 0x008e1},  // Arabic Small High Farsi ..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
@@ -74,13 +76,14 @@ public final class WcWidth {
         {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
+        {0x00b55, 0x00b56},  // Oriya Sign Overline     ..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
+        {0x00c3c, 0x00c3c},  // Telugu Sign Nukta       ..Telugu Sign Nukta
         {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
@@ -97,7 +100,7 @@ public final class WcWidth {
         {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)
+        {0x00d81, 0x00d81},  // Sinhala Sign Candrabindu..Sinhala Sign Candrabindu
         {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
@@ -106,7 +109,7 @@ public final class WcWidth {
         {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
+        {0x00ec8, 0x00ece},  // Lao Tone Mai Ek         ..(nil)
         {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
@@ -130,7 +133,7 @@ public final class WcWidth {
         {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
+        {0x01732, 0x01733},  // Hanunoo Vowel Sign I    ..Hanunoo Vowel Sign U
         {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
@@ -139,6 +142,7 @@ public final class WcWidth {
         {0x017c9, 0x017d3},  // Khmer Sign Muusikatoan  ..Khmer Sign Bathamasat
         {0x017dd, 0x017dd},  // Khmer Sign Atthacan     ..Khmer Sign Atthacan
         {0x0180b, 0x0180d},  // Mongolian Free Variation..Mongolian Free Variation
+        {0x0180f, 0x0180f},  // 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
@@ -154,7 +158,7 @@ public final class WcWidth {
         {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)
+        {0x01ab0, 0x01ace},  // Combining Doubled Circum..Combining Latin Small Le
         {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
@@ -177,8 +181,7 @@ public final class WcWidth {
         {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
+        {0x01dc0, 0x01dff},  // Combining Dotted Grave A..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
@@ -193,7 +196,7 @@ public final class WcWidth {
         {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)
+        {0x0a82c, 0x0a82c},  // Syloti Nagri Sign Altern..Syloti Nagri Sign Altern
         {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
@@ -233,13 +236,18 @@ public final class WcWidth {
         {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)
+        {0x10eab, 0x10eac},  // Yezidi Combining Hamza M..Yezidi Combining Madda M
+        {0x10efd, 0x10eff},  // (nil)                   ..(nil)
         {0x10f46, 0x10f50},  // Sogdian Combining Dot Be..Sogdian Combining Stroke
+        {0x10f82, 0x10f85},  // Old Uyghur Combining Dot..Old Uyghur Combining Two
         {0x11001, 0x11001},  // Brahmi Sign Anusvara    ..Brahmi Sign Anusvara
         {0x11038, 0x11046},  // Brahmi Vowel Sign Aa    ..Brahmi Virama
+        {0x11070, 0x11070},  // Brahmi Sign Old Tamil Vi..Brahmi Sign Old Tamil Vi
+        {0x11073, 0x11074},  // Brahmi Vowel Sign Old Ta..Brahmi Vowel Sign Old Ta
         {0x1107f, 0x11081},  // Brahmi Number Joiner    ..Kaithi Sign Anusvara
         {0x110b3, 0x110b6},  // Kaithi Vowel Sign U     ..Kaithi Vowel Sign Ai
         {0x110b9, 0x110ba},  // Kaithi Sign Virama      ..Kaithi Sign Nukta
+        {0x110c2, 0x110c2},  // Kaithi Vowel Sign Vocali..Kaithi Vowel Sign Vocali
         {0x11100, 0x11102},  // Chakma Sign Candrabindu ..Chakma Sign Visarga
         {0x11127, 0x1112b},  // Chakma Vowel Sign A     ..Chakma Vowel Sign Uu
         {0x1112d, 0x11134},  // Chakma Vowel Sign Ai    ..Chakma Maayyaa
@@ -247,11 +255,12 @@ public final class WcWidth {
         {0x11180, 0x11181},  // Sharada Sign Candrabindu..Sharada Sign Anusvara
         {0x111b6, 0x111be},  // Sharada Vowel Sign U    ..Sharada Vowel Sign O
         {0x111c9, 0x111cc},  // Sharada Sandhi Mark     ..Sharada Extra Short Vowe
-        {0x111cf, 0x111cf},  // (nil)                   ..(nil)
+        {0x111cf, 0x111cf},  // Sharada Sign Inverted Ca..Sharada Sign Inverted Ca
         {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},  // Khojki Sign Sukun       ..Khojki Sign Sukun
+        {0x11241, 0x11241},  // (nil)                   ..(nil)
         {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
@@ -283,9 +292,9 @@ public final class WcWidth {
         {0x11727, 0x1172b},  // Ahom Vowel Sign Aw      ..Ahom Sign Killer
         {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)
+        {0x1193b, 0x1193c},  // Dives Akuru Sign Anusvar..Dives Akuru Sign Candrab
+        {0x1193e, 0x1193e},  // Dives Akuru Virama      ..Dives Akuru Virama
+        {0x11943, 0x11943},  // Dives Akuru Sign Nukta  ..Dives Akuru Sign Nukta
         {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
@@ -313,12 +322,20 @@ public final class WcWidth {
         {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
+        {0x11f00, 0x11f01},  // (nil)                   ..(nil)
+        {0x11f36, 0x11f3a},  // (nil)                   ..(nil)
+        {0x11f40, 0x11f40},  // (nil)                   ..(nil)
+        {0x11f42, 0x11f42},  // (nil)                   ..(nil)
+        {0x13440, 0x13440},  // (nil)                   ..(nil)
+        {0x13447, 0x13455},  // (nil)                   ..(nil)
         {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)
+        {0x16fe4, 0x16fe4},  // Khitan Small Script Fill..Khitan Small Script Fill
         {0x1bc9d, 0x1bc9e},  // Duployan Thick Letter Se..Duployan Double Mark
+        {0x1cf00, 0x1cf2d},  // Znamenny Combining Mark ..Znamenny Combining Mark
+        {0x1cf30, 0x1cf46},  // Znamenny Combining Tonal..Znamenny Priznak Modifie
         {0x1d167, 0x1d169},  // Musical Symbol Combining..Musical Symbol Combining
         {0x1d17b, 0x1d182},  // Musical Symbol Combining..Musical Symbol Combining
         {0x1d185, 0x1d18b},  // Musical Symbol Combining..Musical Symbol Combining
@@ -335,15 +352,19 @@ public final class WcWidth {
         {0x1e01b, 0x1e021},  // Combining Glagolitic Let..Combining Glagolitic Let
         {0x1e023, 0x1e024},  // Combining Glagolitic Let..Combining Glagolitic Let
         {0x1e026, 0x1e02a},  // Combining Glagolitic Let..Combining Glagolitic Let
+        {0x1e08f, 0x1e08f},  // (nil)                   ..(nil)
         {0x1e130, 0x1e136},  // Nyiakeng Puachue Hmong T..Nyiakeng Puachue Hmong T
+        {0x1e2ae, 0x1e2ae},  // Toto Sign Rising Tone   ..Toto Sign Rising Tone
         {0x1e2ec, 0x1e2ef},  // Wancho Tone Tup         ..Wancho Tone Koini
+        {0x1e4ec, 0x1e4ef},  // (nil)                   ..(nil)
         {0x1e8d0, 0x1e8d6},  // Mende Kikakui Combining ..Mende Kikakui Combining
         {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 b29897e5a1b403a0e36f7fc991614981cbc42475 (2020-07-14):
+    // from https://github.com/jquast/wcwidth/pull/64
+    // at commit 1b9b6585b0080ea5cb88dc9815796505724793fe (2022-12-16):
     private static final int[][] WIDE_EASTASIAN = {
         {0x01100, 0x0115f},  // Hangul Choseong Kiyeok  ..Hangul Choseong Filler
         {0x0231a, 0x0231b},  // Watch                   ..Hourglass
@@ -392,7 +413,7 @@ public final class WcWidth {
         {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)
+        {0x03250, 0x04dbf},  // Partnership Sign        ..Cjk Unified Ideograph-4d
         {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
@@ -404,13 +425,18 @@ public final class WcWidth {
         {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)
+        {0x16fe0, 0x16fe4},  // Tangut Iteration Mark   ..Khitan Small Script Fill
+        {0x16ff0, 0x16ff1},  // Vietnamese Alternate Rea..Vietnamese Alternate Rea
         {0x17000, 0x187f7},  // (nil)                   ..(nil)
-        {0x18800, 0x18cd5},  // Tangut Component-001    ..(nil)
+        {0x18800, 0x18cd5},  // Tangut Component-001    ..Khitan Small Script Char
         {0x18d00, 0x18d08},  // (nil)                   ..(nil)
-        {0x1b000, 0x1b11e},  // Katakana Letter Archaic ..Hentaigana Letter N-mu-m
+        {0x1aff0, 0x1aff3},  // Katakana Letter Minnan T..Katakana Letter Minnan T
+        {0x1aff5, 0x1affb},  // Katakana Letter Minnan T..Katakana Letter Minnan N
+        {0x1affd, 0x1affe},  // Katakana Letter Minnan N..Katakana Letter Minnan N
+        {0x1b000, 0x1b122},  // Katakana Letter Archaic ..Katakana Letter Archaic
+        {0x1b132, 0x1b132},  // (nil)                   ..(nil)
         {0x1b150, 0x1b152},  // Hiragana Letter Small Wi..Hiragana Letter Small Wo
+        {0x1b155, 0x1b155},  // (nil)                   ..(nil)
         {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
@@ -443,24 +469,24 @@ public final class WcWidth {
         {0x1f680, 0x1f6c5},  // Rocket                  ..Left Luggage
         {0x1f6cc, 0x1f6cc},  // Sleeping Accommodation  ..Sleeping Accommodation
         {0x1f6d0, 0x1f6d2},  // Place Of Worship        ..Shopping Trolley
-        {0x1f6d5, 0x1f6d7},  // Hindu Temple            ..(nil)
+        {0x1f6d5, 0x1f6d7},  // Hindu Temple            ..Elevator
+        {0x1f6dc, 0x1f6df},  // (nil)                   ..Ring Buoy
         {0x1f6eb, 0x1f6ec},  // Airplane Departure      ..Airplane Arriving
-        {0x1f6f4, 0x1f6fc},  // Scooter                 ..(nil)
+        {0x1f6f4, 0x1f6fc},  // Scooter                 ..Roller Skate
         {0x1f7e0, 0x1f7eb},  // Large Orange Circle     ..Large Brown Square
-        {0x1f90c, 0x1f93a},  // (nil)                   ..Fencer
+        {0x1f7f0, 0x1f7f0},  // Heavy Equals Sign       ..Heavy Equals Sign
+        {0x1f90c, 0x1f93a},  // Pinched Fingers         ..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)
+        {0x1f947, 0x1f9ff},  // First Place Medal       ..Nazar Amulet
+        {0x1fa70, 0x1fa7c},  // Ballet Shoes            ..Crutch
+        {0x1fa80, 0x1fa88},  // Yo-yo                   ..(nil)
+        {0x1fa90, 0x1fabd},  // Ringed Planet           ..(nil)
+        {0x1fabf, 0x1fac5},  // (nil)                   ..Person With Crown
+        {0x1face, 0x1fadb},  // (nil)                   ..(nil)
+        {0x1fae0, 0x1fae8},  // Melting Face            ..(nil)
+        {0x1faf0, 0x1faf8},  // Hand With Index Finger A..(nil)
         {0x20000, 0x2fffd},  // Cjk Unified Ideograph-20..(nil)
-        {0x30000, 0x3fffd},  // (nil)                   ..(nil)
+        {0x30000, 0x3fffd},  // Cjk Unified Ideograph-30..(nil)
     };
 
 
@@ -512,4 +538,29 @@ public final class WcWidth {
         return Character.isHighSurrogate(c) ? width(Character.toCodePoint(c, chars[index + 1])) : width(c);
     }
 
+    /**
+     * The zero width characters count like combining characters in the `chars` array from start
+     * index to end index (exclusive).
+     */
+    public static int zeroWidthCharsCount(char[] chars, int start, int end) {
+        if (start < 0 || start >= chars.length)
+            return 0;
+
+        int count = 0;
+        for (int i = start; i < end && i < chars.length;) {
+            if (Character.isHighSurrogate(chars[i])) {
+                if (width(Character.toCodePoint(chars[i], chars[i + 1])) <= 0) {
+                    count++;
+                }
+                i += 2;
+            } else {
+                if (width(chars[i]) <= 0) {
+                    count++;
+                }
+                i++;
+            }
+        }
+        return count;
+    }
+
 }

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

@@ -29,7 +29,9 @@ static int create_subprocess(JNIEnv* env,
         char** envp,
         int* pProcessId,
         jint rows,
-        jint columns)
+        jint columns,
+        jint cell_width,
+        jint cell_height)
 {
     int ptm = open("/dev/ptmx", O_RDWR | O_CLOEXEC);
     if (ptm < 0) return throw_runtime_exception(env, "Cannot open /dev/ptmx");
@@ -57,7 +59,7 @@ static int create_subprocess(JNIEnv* env,
     tcsetattr(ptm, TCSANOW, &tios);
 
     /** Set initial winsize. */
-    struct winsize sz = { .ws_row = (unsigned short) rows, .ws_col = (unsigned short) columns };
+    struct winsize sz = { .ws_row = (unsigned short) rows, .ws_col = (unsigned short) columns, .ws_xpixel = (unsigned short) (columns * cell_width), .ws_ypixel = (unsigned short) (rows * cell_height)};
     ioctl(ptm, TIOCSWINSZ, &sz);
 
     pid_t pid = fork();
@@ -121,7 +123,9 @@ JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(
         jobjectArray envVars,
         jintArray processIdArray,
         jint rows,
-        jint columns)
+        jint columns,
+        jint cell_width,
+        jint cell_height)
 {
     jsize size = args ? (*env)->GetArrayLength(env, args) : 0;
     char** argv = NULL;
@@ -156,7 +160,7 @@ JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(
     int procId = 0;
     char const* cmd_cwd = (*env)->GetStringUTFChars(env, cwd, NULL);
     char const* cmd_utf8 = (*env)->GetStringUTFChars(env, cmd, NULL);
-    int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId, rows, columns);
+    int ptm = create_subprocess(env, cmd_utf8, cmd_cwd, argv, envp, &procId, rows, columns, cell_width, cell_height);
     (*env)->ReleaseStringUTFChars(env, cmd, cmd_utf8);
     (*env)->ReleaseStringUTFChars(env, cmd, cmd_cwd);
 
@@ -178,9 +182,9 @@ JNIEXPORT jint JNICALL Java_com_termux_terminal_JNI_createSubprocess(
     return ptm;
 }
 
-JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyWindowSize(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd, jint rows, jint cols)
+JNIEXPORT void JNICALL Java_com_termux_terminal_JNI_setPtyWindowSize(JNIEnv* TERMUX_UNUSED(env), jclass TERMUX_UNUSED(clazz), jint fd, jint rows, jint cols, jint cell_width, jint cell_height)
 {
-    struct winsize sz = { .ws_row = (unsigned short) rows, .ws_col = (unsigned short) cols };
+    struct winsize sz = { .ws_row = (unsigned short) rows, .ws_col = (unsigned short) cols, .ws_xpixel = (unsigned short) (cols * cell_width), .ws_ypixel = (unsigned short) (rows * cell_height) };
     ioctl(fd, TIOCSWINSZ, &sz);
 }
 

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

@@ -0,0 +1,21 @@
+package com.termux.terminal;
+
+public class ApcTest extends TerminalTestCase {
+
+    public void testApcConsumed() {
+        // At time of writing this is part of what yazi sends for probing for kitty graphics protocol support:
+        // https://github.com/sxyazi/yazi/blob/0cdaff98d0b3723caff63eebf1974e7907a43a2c/yazi-adapter/src/emulator.rs#L129
+        // This should not result in anything being written to the screen: If kitty graphics protocol support
+        // is implemented it should instead result in an error code on stdin, and if not it should be consumed
+        // silently just as xterm does. See https://sw.kovidgoyal.net/kitty/graphics-protocol/.
+        withTerminalSized(2, 2)
+            .enterString("\033_Gi=31,s=1,v=1,a=q,t=d,f=24;AAAA\033\\")
+            .assertLinesAre("  ", "  ");
+
+        // It is ok for the APC content to be non printable characters:
+        withTerminalSized(12, 2)
+            .enterString("hello \033_some\023\033_\\apc#end\033\\ world")
+            .assertLinesAre("hello  world", "            ");
+    }
+
+}

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

@@ -1,5 +1,7 @@
 package com.termux.terminal;
 
+import java.util.List;
+
 /** "\033[" is the Control Sequence Introducer char sequence (CSI). */
 public class ControlSequenceIntroducerTest extends TerminalTestCase {
 
@@ -62,4 +64,68 @@ public class ControlSequenceIntroducerTest extends TerminalTestCase {
 		assertEquals("y\nz", mTerminal.getScreen().getTranscriptText());
 	}
 
+    public void testReportPixelSize() {
+        int columns = 3;
+        int rows = 3;
+        withTerminalSized(columns, rows);
+        int cellWidth = TerminalTest.INITIAL_CELL_WIDTH_PIXELS;
+        int cellHeight = TerminalTest.INITIAL_CELL_HEIGHT_PIXELS;
+        assertEnteringStringGivesResponse("\033[14t", "\033[4;" + (rows*cellHeight) + ";" + (columns*cellWidth) + "t");
+        assertEnteringStringGivesResponse("\033[16t", "\033[6;" + cellHeight + ";" + cellWidth + "t");
+        columns = 23;
+        rows = 33;
+        resize(columns, rows);
+        assertEnteringStringGivesResponse("\033[14t", "\033[4;" + (rows*cellHeight) + ";" + (columns*cellWidth) + "t");
+        assertEnteringStringGivesResponse("\033[16t", "\033[6;" + cellHeight + ";" + cellWidth + "t");
+        cellWidth = 8;
+        cellHeight = 18;
+        mTerminal.resize(columns, rows, cellWidth, cellHeight);
+        assertEnteringStringGivesResponse("\033[14t", "\033[4;" + (rows*cellHeight) + ";" + (columns*cellWidth) + "t");
+        assertEnteringStringGivesResponse("\033[16t", "\033[6;" + cellHeight + ";" + cellWidth + "t");
+    }
+
+    /**
+     * See <a href="https://sw.kovidgoyal.net/kitty/underlines/">Colored and styled underlines</a>:
+     *
+     * <pre>
+     *  <ESC>[4:0m  # no underline
+     *  <ESC>[4:1m  # straight underline
+     *  <ESC>[4:2m  # double underline
+     *  <ESC>[4:3m  # curly underline
+     *  <ESC>[4:4m  # dotted underline
+     *  <ESC>[4:5m  # dashed underline
+     *  <ESC>[4m    # straight underline (for backwards compat)
+     *  <ESC>[24m   # no underline (for backwards compat)
+     * </pre>
+     * <p>
+     * We currently parse the variants, but map them to normal/no underlines as appropriate
+     */
+    public void testUnderlineVariants() {
+        for (String suffix : List.of("", ":1", ":2", ":3", ":4", ":5")) {
+            for (String stop : List.of("24", "4:0")) {
+                withTerminalSized(3, 3);
+                enterString("\033[4" + suffix + "m").assertLinesAre("   ", "   ", "   ");
+                assertEquals(TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE, mTerminal.mEffect);
+                enterString("\033[4;1m").assertLinesAre("   ", "   ", "   ");
+                assertEquals(TextStyle.CHARACTER_ATTRIBUTE_BOLD | TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE, mTerminal.mEffect);
+                enterString("\033[" + stop + "m").assertLinesAre("   ", "   ", "   ");
+                assertEquals(TextStyle.CHARACTER_ATTRIBUTE_BOLD, mTerminal.mEffect);
+            }
+        }
+    }
+
+    public void testManyParameters() {
+        StringBuilder b = new StringBuilder("\033[");
+        for (int i = 0; i < 30; i++) {
+            b.append("0;");
+        }
+        b.append("4:2");
+        // This clearing of underline should be ignored as the parameters pass the threshold for too many parameters:
+        b.append("4:0m");
+        withTerminalSized(3, 3)
+            .enterString(b.toString())
+            .assertLinesAre("   ", "   ", "   ");
+        assertEquals(TextStyle.CHARACTER_ATTRIBUTE_UNDERLINE, mTerminal.mEffect);
+    }
+
 }

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

@@ -11,10 +11,10 @@ public class HistoryTest extends TerminalTestCase {
 		assertLinesAre("777", "888", "999");
 		assertHistoryStartsWith("666", "555");
 
-		mTerminal.resize(cols, 2);
+		resize(cols, 2);
 		assertHistoryStartsWith("777", "666", "555");
 
-		mTerminal.resize(cols, 3);
+		resize(cols, 3);
 		assertHistoryStartsWith("666", "555");
 	}
 

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

@@ -72,11 +72,11 @@ public class ResizeTest extends TerminalTestCase {
 			enterString("\r\n");
 		}
 		assertLinesAre("998       ", "999       ", "          ");
-		mTerminal.resize(cols, 2);
+		resize(cols, 2);
 		assertLinesAre("999       ", "          ");
-		mTerminal.resize(cols, 5);
+		resize(cols, 5);
 		assertLinesAre("996       ", "997       ", "998       ", "999       ", "          ");
-		mTerminal.resize(cols, rows);
+		resize(cols, rows);
 		assertLinesAre("998       ", "999       ", "          ");
 	}
 

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

@@ -75,6 +75,16 @@ public class ScrollRegionTest extends TerminalTestCase {
 		withTerminalSized(3, 3).enterString("\033[?69h\033[2sABC\033[?6h\033ED").assertLinesAre("ABC", " D ", "   ");
 	}
 
+	public void testRiRespectsLeftMargin() {
+		// Reverse Index (RI), ${ESC}M, should respect horizontal margins:
+		withTerminalSized(4, 3).enterString("ABCD\033[?69h\033[2;3s\033[?6h\033M").assertLinesAre("A  D", " BC ", "    ");
+	}
+
+	public void testSdRespectsLeftMargin() {
+		// Scroll Down (SD), ${CSI}${N}T, should respect horizontal margins:
+		withTerminalSized(4, 3).enterString("ABCD\033[?69h\033[2;3s\033[?6h\033[2T").assertLinesAre("A  D", "    ", " BC ");
+	}
+
 	public void testBackwardIndex() {
 		// vttest "Menu 11.3.2: VT420 Cursor-Movement Test", test 7.
 		// Without margins:
@@ -127,4 +137,31 @@ public class ScrollRegionTest extends TerminalTestCase {
 				"   xxx"
 			);
 	}
+
+	/**
+	 * See <a href="https://github.com/termux/termux-packages/issues/12556">reported issue</a>.
+	 */
+	public void testClearingWhenScrollingWithMargins() {
+		int newForeground = 2;
+		int newBackground = 3;
+		int size = 3;
+		TerminalTestCase terminal = withTerminalSized(size, size)
+			// Enable horizontal margin and set left margin to 1:
+			.enterString("\033[?69h\033[2s")
+			// Set foreground and background color:
+			.enterString("\033[" + (30 + newForeground) + ";" + (40 + newBackground) + "m")
+			// Enter newlines to scroll down:
+			.enterString("\r\n\r\n\r\n\r\n\r\n");
+		for (int row = 0; row < size; row++) {
+			for (int col = 0; col < size; col++) {
+				// The first column (outside of the scrolling area, due to us setting a left scroll
+				// margin of 1) should be unmodified, the others should use the current style:
+				int expectedForeground = col == 0 ? TextStyle.COLOR_INDEX_FOREGROUND : newForeground;
+				int expectedBackground = col == 0 ? TextStyle.COLOR_INDEX_BACKGROUND : newBackground;
+				terminal.assertForegroundColorAt(row, col, expectedForeground);
+				terminal.assertBackgroundColorAt(row, col, expectedBackground);
+			}
+		}
+	}
+
 }

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

@@ -82,7 +82,7 @@ public class TerminalTest extends TerminalTestCase {
 		assertEnteringStringGivesResponse("\033[18t", "\033[8;5;5t");
 		for (int width = 3; width < 12; width++) {
 			for (int height = 3; height < 12; height++) {
-				mTerminal.resize(width, height);
+				resize(width, height);
 				assertEnteringStringGivesResponse("\033[18t", "\033[8;" + height + ";" + width + "t");
 			}
 		}
@@ -137,6 +137,11 @@ public class TerminalTest extends TerminalTestCase {
 	}
 
 	public void testSelectGraphics() {
+		selectGraphicsTestRun(';');
+		selectGraphicsTestRun(':');
+	}
+
+	public void selectGraphicsTestRun(char separator) {
 		withTerminalSized(5, 5);
 		enterString("\033[31m");
 		assertEquals(mTerminal.mForeColor, 1);
@@ -151,31 +156,63 @@ public class TerminalTest extends TerminalTestCase {
 		assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
 		assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
 
+		// Test CSI resetting to default if sequence starts with ; or has sequential ;;
+        // Check TerminalEmulator.parseArg()
+        enterString("\033[31m\033[m");
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        enterString("\033[31m\033[;m".replace(';', separator));
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        enterString("\033[31m\033[0m");
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        enterString("\033[31m\033[0;m".replace(';', separator));
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        enterString("\033[31;;m");
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        enterString("\033[31::m");
+        assertEquals(1, mTerminal.mForeColor);
+        enterString("\033[31;m");
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        enterString("\033[31:m");
+        assertEquals(1, mTerminal.mForeColor);
+        enterString("\033[31;;41m");
+        assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
+        assertEquals(1, mTerminal.mBackColor);
+        enterString("\033[0m");
+        assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
+
 		// 256 colors:
-		enterString("\033[38;5;119m");
+		enterString("\033[38;5;119m".replace(';', separator));
 		assertEquals(119, mTerminal.mForeColor);
 		assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
-		enterString("\033[48;5;129m");
+		enterString("\033[48;5;129m".replace(';', separator));
 		assertEquals(119, mTerminal.mForeColor);
 		assertEquals(129, mTerminal.mBackColor);
 
 		// Invalid parameter:
-		enterString("\033[48;8;129m");
+		enterString("\033[48;8;129m".replace(';', separator));
 		assertEquals(119, mTerminal.mForeColor);
 		assertEquals(129, mTerminal.mBackColor);
 
 		// Multiple parameters at once:
-		enterString("\033[38;5;178;48;5;179;m");
+		enterString("\033[38;5;178".replace(';', separator) + ";" + "48;5;179m".replace(';', separator));
 		assertEquals(178, mTerminal.mForeColor);
 		assertEquals(179, mTerminal.mBackColor);
 
+		// Omitted parameter means zero:
+		enterString("\033[38;5;m".replace(';', separator));
+		assertEquals(0, mTerminal.mForeColor);
+		assertEquals(179, mTerminal.mBackColor);
+		enterString("\033[48;5;m".replace(';', separator));
+		assertEquals(0, mTerminal.mForeColor);
+		assertEquals(0, mTerminal.mBackColor);
+
 		// 24 bit colors:
 		enterString(("\033[0m")); // Reset fg and bg colors.
-		enterString("\033[38;2;255;127;2m");
+		enterString("\033[38;2;255;127;2m".replace(';', separator));
 		int expectedForeground = 0xff000000 | (255 << 16) | (127 << 8) | 2;
 		assertEquals(expectedForeground, mTerminal.mForeColor);
 		assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
-		enterString("\033[48;2;1;2;254m");
+		enterString("\033[48;2;1;2;254m".replace(';', separator));
 		int expectedBackground = 0xff000000 | (1 << 16) | (2 << 8) | 254;
 		assertEquals(expectedForeground, mTerminal.mForeColor);
 		assertEquals(expectedBackground, mTerminal.mBackColor);
@@ -184,14 +221,30 @@ public class TerminalTest extends TerminalTestCase {
 		enterString(("\033[0m")); // Reset fg and bg colors.
 		assertEquals(TextStyle.COLOR_INDEX_FOREGROUND, mTerminal.mForeColor);
 		assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
-		enterString("\033[38;2;255;127;2;48;2;1;2;254m");
+		enterString("\033[38;2;255;127;2".replace(';', separator) + ";" + "48;2;1;2;254m".replace(';', separator));
 		assertEquals(expectedForeground, mTerminal.mForeColor);
 		assertEquals(expectedBackground, mTerminal.mBackColor);
 
 		// 24 bit colors, invalid input:
-		enterString("\033[38;2;300;127;2;48;2;1;300;254m");
+		enterString("\033[38;2;300;127;2;48;2;1;300;254m".replace(';', separator));
 		assertEquals(expectedForeground, mTerminal.mForeColor);
 		assertEquals(expectedBackground, mTerminal.mBackColor);
+
+		// 24 bit colors, omitted parameter means zero:
+		enterString("\033[38;2;255;127;m".replace(';', separator));
+		expectedForeground = 0xff000000 | (255 << 16) | (127 << 8);
+		assertEquals(expectedForeground, mTerminal.mForeColor);
+		assertEquals(expectedBackground, mTerminal.mBackColor);
+		enterString("\033[38;2;123;;77m".replace(';', separator));
+		expectedForeground = 0xff000000 | (123 << 16) | 77;
+		assertEquals(expectedForeground, mTerminal.mForeColor);
+		assertEquals(expectedBackground, mTerminal.mBackColor);
+
+		// 24 bit colors, extra sub-parameters are skipped:
+		expectedForeground = 0xff000000 | (255 << 16) | (127 << 8) | 2;
+		enterString("\033[0;38:2:255:127:2:48:2:1:2:254m");
+		assertEquals(expectedForeground, mTerminal.mForeColor);
+		assertEquals(TextStyle.COLOR_INDEX_BACKGROUND, mTerminal.mBackColor);
 	}
 
 	public void testBackgroundColorErase() {

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

@@ -13,7 +13,10 @@ import java.util.Set;
 
 public abstract class TerminalTestCase extends TestCase {
 
-	public static class MockTerminalOutput extends TerminalOutput {
+    public static final int INITIAL_CELL_WIDTH_PIXELS = 13;
+    public static final int INITIAL_CELL_HEIGHT_PIXELS = 15;
+
+    public static class MockTerminalOutput extends TerminalOutput {
 		final ByteArrayOutputStream baos = new ByteArrayOutputStream();
 		public final List<ChangedTitle> titleChanges = new ArrayList<>();
 		public final List<String> clipboardPuts = new ArrayList<>();
@@ -108,7 +111,7 @@ public abstract class TerminalTestCase extends TestCase {
 
 	protected TerminalTestCase withTerminalSized(int columns, int rows) {
 	    // The tests aren't currently using the client, so a null client will suffice, a dummy client should be implemented if needed
-		mTerminal = new TerminalEmulator(mOutput, columns, rows, rows * 2, null);
+		mTerminal = new TerminalEmulator(mOutput, columns, rows, INITIAL_CELL_WIDTH_PIXELS, INITIAL_CELL_HEIGHT_PIXELS, rows * 2, null);
 		return this;
 	}
 
@@ -201,7 +204,7 @@ public abstract class TerminalTestCase extends TestCase {
 	}
 
 	public TerminalTestCase resize(int cols, int rows) {
-		mTerminal.resize(cols, rows);
+		mTerminal.resize(cols, rows, INITIAL_CELL_WIDTH_PIXELS, INITIAL_CELL_HEIGHT_PIXELS);
 		assertInvariants();
 		return this;
 	}
@@ -301,6 +304,11 @@ public abstract class TerminalTestCase extends TestCase {
 		assertEquals(color, TextStyle.decodeForeColor(style));
 	}
 
+	public void assertBackgroundColorAt(int externalRow, int column, int color) {
+		long style = mTerminal.getScreen().mLines[mTerminal.getScreen().externalToInternalRow(externalRow)].getStyle(column);
+		assertEquals(color, TextStyle.decodeBackColor(style));
+	}
+
 	public TerminalTestCase assertColor(int colorIndex, int expected) {
 		int actual = mTerminal.mColors.mCurrentColors[colorIndex];
 		if (expected != actual) {

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

@@ -233,7 +233,7 @@ public final class TerminalRenderer {
             mTextPaint.setColor(foreColor);
 
             // The text alignment is the default Paint.Align.LEFT.
-            canvas.drawText(text, startCharIndex, runWidthChars, left, y - mFontLineSpacingAndAscent, mTextPaint);
+            canvas.drawTextRun(text, startCharIndex, runWidthChars, startCharIndex, runWidthChars, left, y - mFontLineSpacingAndAscent, false, mTextPaint);
         }
 
         if (savedMatrix) canvas.restore();

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

@@ -2,6 +2,7 @@ package com.termux.view;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
+import android.app.Activity;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
@@ -10,6 +11,7 @@ import android.graphics.Typeface;
 import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
+import android.os.SystemClock;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.TextUtils;
@@ -19,17 +21,20 @@ import android.view.HapticFeedbackConstants;
 import android.view.InputDevice;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
+import android.view.Menu;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewConfiguration;
 import android.view.ViewTreeObserver;
 import android.view.accessibility.AccessibilityManager;
+import android.view.autofill.AutofillManager;
 import android.view.autofill.AutofillValue;
 import android.view.inputmethod.BaseInputConnection;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
 import android.widget.Scroller;
 
+import androidx.annotation.Nullable;
 import androidx.annotation.RequiresApi;
 
 import com.termux.terminal.KeyHandler;
@@ -81,6 +86,43 @@ public final class TerminalView extends View {
     /** If non-zero, this is the last unicode code point received if that was a combining character. */
     int mCombiningAccent;
 
+    /**
+     * The current AutoFill type returned for {@link View#getAutofillType()} by {@link #getAutofillType()}.
+     *
+     * The default is {@link #AUTOFILL_TYPE_NONE} so that AutoFill UI, like toolbar above keyboard
+     * is not shown automatically, like on Activity starts/View create. This value should be updated
+     * to required value, like {@link #AUTOFILL_TYPE_TEXT} before calling
+     * {@link AutofillManager#requestAutofill(View)} so that AutoFill UI shows. The updated value
+     * set will automatically be restored to {@link #AUTOFILL_TYPE_NONE} in
+     * {@link #autofill(AutofillValue)} so that AutoFill UI isn't shown anymore by calling
+     * {@link #resetAutoFill()}.
+     */
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    private int mAutoFillType = AUTOFILL_TYPE_NONE;
+
+    /**
+     * The current AutoFill type returned for {@link View#getImportantForAutofill()} by
+     * {@link #getImportantForAutofill()}.
+     *
+     * The default is {@link #IMPORTANT_FOR_AUTOFILL_NO} so that view is not considered important
+     * for AutoFill. This value should be updated to required value, like
+     * {@link #IMPORTANT_FOR_AUTOFILL_YES} before calling {@link AutofillManager#requestAutofill(View)}
+     * so that Android and apps consider the view as important for AutoFill to process the request.
+     * The updated value set will automatically be restored to {@link #IMPORTANT_FOR_AUTOFILL_NO} in
+     * {@link #autofill(AutofillValue)} by calling {@link #resetAutoFill()}.
+     */
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    private int mAutoFillImportance = IMPORTANT_FOR_AUTOFILL_NO;
+
+    /**
+     * The current AutoFill hints returned for {@link View#getAutofillHints()} ()} by {@link #getAutofillHints()} ()}.
+     *
+     * The default is an empty `string[]`. This value should be updated to required value. The
+     * updated value set will automatically be restored an empty `string[]` in
+     * {@link #autofill(AutofillValue)} by calling {@link #resetAutoFill()}.
+     */
+    private String[] mAutoFillHints = new String[0];
+
     private final boolean mAccessibilityEnabled;
 
     private static final String LOG_TAG = "TerminalView";
@@ -440,6 +482,14 @@ public final class TerminalView extends View {
         if (mAccessibilityEnabled) setContentDescription(getText());
     }
 
+    /** This must be called by the hosting activity in {@link Activity#onContextMenuClosed(Menu)}
+     * when context menu for the {@link TerminalView} is started by
+     * {@link TextSelectionCursorController#ACTION_MORE} is closed. */
+    public void onContextMenuClosed(Menu menu) {
+        // Unset the stored text since it shouldn't be used anymore and should be cleared from memory
+        unsetStoredSelectedText();
+    }
+
     /**
      * Sets the text size, which in turn sets the number of rows and columns.
      *
@@ -550,11 +600,14 @@ public final class TerminalView extends View {
                 if (action == MotionEvent.ACTION_DOWN) showContextMenu();
                 return true;
             } else if (event.isButtonPressed(MotionEvent.BUTTON_TERTIARY)) {
-                ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-                ClipData clipData = clipboard.getPrimaryClip();
+                ClipboardManager clipboardManager = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+                ClipData clipData = clipboardManager.getPrimaryClip();
                 if (clipData != null) {
-                    CharSequence paste = clipData.getItemAt(0).coerceToText(getContext());
-                    if (!TextUtils.isEmpty(paste)) mEmulator.paste(paste.toString());
+                    ClipData.Item clipItem = clipData.getItemAt(0);
+                    if (clipItem != null) {
+                        CharSequence text = clipItem.coerceToText(getContext());
+                        if (!TextUtils.isEmpty(text)) mEmulator.paste(text.toString());
+                    }
                 }
             } else if (mEmulator.isMouseTrackingActive()) { // BUTTON_PRIMARY.
                 switch (event.getAction()) {
@@ -578,6 +631,7 @@ public final class TerminalView extends View {
         if (TERMINAL_VIEW_KEY_LOGGING_ENABLED)
             mClient.logInfo(LOG_TAG, "onKeyPreIme(keyCode=" + keyCode + ", event=" + event + ")");
         if (keyCode == KeyEvent.KEYCODE_BACK) {
+            cancelRequestAutoFill();
             if (isSelectingText()) {
                 stopTextSelectionMode();
                 return true;
@@ -839,6 +893,9 @@ public final class TerminalView extends View {
         if (mEmulator != null)
             mEmulator.setCursorBlinkState(true);
 
+        if (handleKeyCodeAction(keyCode, keyMod))
+            return true;
+
         TerminalEmulator term = mTermSession.getEmulator();
         String code = KeyHandler.getCode(keyCode, keyMod, term.isCursorKeysApplicationMode(), term.isKeypadApplicationMode());
         if (code == null) return false;
@@ -846,6 +903,26 @@ public final class TerminalView extends View {
         return true;
     }
 
+    public boolean handleKeyCodeAction(int keyCode, int keyMod) {
+        boolean shiftDown = (keyMod & KeyHandler.KEYMOD_SHIFT) != 0;
+
+        switch (keyCode) {
+            case KeyEvent.KEYCODE_PAGE_UP:
+            case KeyEvent.KEYCODE_PAGE_DOWN:
+                // shift+page_up and shift+page_down should scroll scrollback history instead of
+                // scrolling command history or changing pages
+                if (shiftDown) {
+                    long time = SystemClock.uptimeMillis();
+                    MotionEvent motionEvent = MotionEvent.obtain(time, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
+                    doScroll(motionEvent, keyCode == KeyEvent.KEYCODE_PAGE_UP ? -mEmulator.mRows : mEmulator.mRows);
+                    motionEvent.recycle();
+                    return true;
+                }
+        }
+
+       return false;
+    }
+
     /**
      * Called when a key is released in the view.
      *
@@ -893,7 +970,7 @@ public final class TerminalView extends View {
         int newRows = Math.max(4, (viewHeight - mRenderer.mFontLineSpacingAndAscent) / mRenderer.mFontLineSpacing);
 
         if (mEmulator == null || (newColumns != mEmulator.mColumns || newRows != mEmulator.mRows)) {
-            mTermSession.updateSize(newColumns, newRows);
+            mTermSession.updateSize(newColumns, newRows, (int) mRenderer.getFontWidth(), mRenderer.getFontLineSpacing());
             mEmulator = mTermSession.getEmulator();
             mClient.onEmulatorSet();
 
@@ -971,12 +1048,20 @@ public final class TerminalView extends View {
         if (value.isText()) {
             mTermSession.write(value.getTextValue().toString());
         }
+
+        resetAutoFill();
     }
 
     @RequiresApi(api = Build.VERSION_CODES.O)
     @Override
     public int getAutofillType() {
-        return AUTOFILL_TYPE_TEXT;
+        return mAutoFillType;
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    @Override
+    public String[] getAutofillHints() {
+        return mAutoFillHints;
     }
 
     @RequiresApi(api = Build.VERSION_CODES.O)
@@ -985,6 +1070,95 @@ public final class TerminalView extends View {
         return AutofillValue.forText("");
     }
 
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    @Override
+    public int getImportantForAutofill() {
+        return mAutoFillImportance;
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    private synchronized void resetAutoFill() {
+        // Restore none type so that AutoFill UI isn't shown anymore.
+        mAutoFillType = AUTOFILL_TYPE_NONE;
+        mAutoFillImportance = IMPORTANT_FOR_AUTOFILL_NO;
+        mAutoFillHints = new String[0];
+    }
+
+    public AutofillManager getAutoFillManagerService() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return null;
+
+        try {
+            Context context = getContext();
+            if (context == null) return null;
+            return context.getSystemService(AutofillManager.class);
+        } catch (Exception e) {
+            mClient.logStackTraceWithMessage(LOG_TAG, "Failed to get AutofillManager service", e);
+            return null;
+        }
+    }
+
+    public boolean isAutoFillEnabled() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return false;
+
+        try {
+            AutofillManager autofillManager = getAutoFillManagerService();
+            return autofillManager != null && autofillManager.isEnabled();
+        } catch (Exception e) {
+            mClient.logStackTraceWithMessage(LOG_TAG, "Failed to check if Autofill is enabled", e);
+            return false;
+        }
+    }
+
+    public synchronized void requestAutoFillUsername() {
+        requestAutoFill(
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? new String[]{View.AUTOFILL_HINT_USERNAME} :
+                null);
+    }
+
+    public synchronized void requestAutoFillPassword() {
+        requestAutoFill(
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ? new String[]{View.AUTOFILL_HINT_PASSWORD} :
+            null);
+    }
+
+    public synchronized void requestAutoFill(String[] autoFillHints) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
+        if (autoFillHints == null || autoFillHints.length < 1) return;
+
+        try {
+            AutofillManager autofillManager = getAutoFillManagerService();
+            if (autofillManager != null && autofillManager.isEnabled()) {
+                // Update type that will be returned by `getAutofillType()` so that AutoFill UI is shown.
+                mAutoFillType = AUTOFILL_TYPE_TEXT;
+                // Update importance that will be returned by `getImportantForAutofill()` so that
+                // AutoFill considers the view as important.
+                mAutoFillImportance = IMPORTANT_FOR_AUTOFILL_YES;
+                // Update hints that will be returned by `getAutofillHints()` for which to show AutoFill UI.
+                mAutoFillHints = autoFillHints;
+                autofillManager.requestAutofill(this);
+            }
+        } catch (Exception e) {
+            mClient.logStackTraceWithMessage(LOG_TAG, "Failed to request Autofill", e);
+        }
+    }
+
+    public synchronized void cancelRequestAutoFill() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
+        if (mAutoFillType == AUTOFILL_TYPE_NONE) return;
+
+        try {
+            AutofillManager autofillManager = getAutoFillManagerService();
+            if (autofillManager != null && autofillManager.isEnabled()) {
+                resetAutoFill();
+                autofillManager.cancel();
+            }
+        } catch (Exception e) {
+            mClient.logStackTraceWithMessage(LOG_TAG, "Failed to cancel Autofill request", e);
+        }
+    }
+
+
+
 
 
     /**
@@ -1184,6 +1358,25 @@ public final class TerminalView extends View {
         }
     }
 
+    /** Get the currently selected text if selecting. */
+    public String getSelectedText() {
+        if (isSelectingText() && mTextSelectionCursorController != null)
+            return mTextSelectionCursorController.getSelectedText();
+        else
+            return null;
+    }
+
+    /** Get the selected text stored before "MORE" button was pressed on the context menu. */
+    @Nullable
+    public String getStoredSelectedText() {
+        return mTextSelectionCursorController != null ? mTextSelectionCursorController.getStoredSelectedText() : null;
+    }
+
+    /** Unset the selected text stored before "MORE" button was pressed on the context menu. */
+    public void unsetStoredSelectedText() {
+        if (mTextSelectionCursorController != null) mTextSelectionCursorController.unsetStoredSelectedText();
+    }
+
     private ActionMode getTextSelectionActionMode() {
         if (mTextSelectionCursorController != null) {
             return mTextSelectionCursorController.getActionMode();

terminal-view/src/main/java/com/termux/view/textselection/TextSelectionCursorController.java

@@ -12,6 +12,8 @@ import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.View;
 
+import androidx.annotation.Nullable;
+
 import com.termux.terminal.TerminalBuffer;
 import com.termux.terminal.WcWidth;
 import com.termux.view.R;
@@ -21,6 +23,7 @@ public class TextSelectionCursorController implements CursorController {
 
     private final TerminalView terminalView;
     private final TextSelectionHandleView mStartHandle, mEndHandle;
+    private String mStoredSelectedText;
     private boolean mIsSelectingText = false;
     private long mShowStartTime = System.currentTimeMillis();
 
@@ -28,9 +31,9 @@ public class TextSelectionCursorController implements CursorController {
     private int mSelX1 = -1, mSelX2 = -1, mSelY1 = -1, mSelY2 = -1;
 
     private ActionMode mActionMode;
-    private final int ACTION_COPY = 1;
-    private final int ACTION_PASTE = 2;
-    private final int ACTION_MORE = 3;
+    public final int ACTION_COPY = 1;
+    public final int ACTION_PASTE = 2;
+    public final int ACTION_MORE = 3;
 
     public TextSelectionCursorController(TerminalView terminalView) {
         this.terminalView = terminalView;
@@ -113,7 +116,7 @@ public class TextSelectionCursorController implements CursorController {
 
                 ClipboardManager clipboard = (ClipboardManager) terminalView.getContext().getSystemService(Context.CLIPBOARD_SERVICE);
                 menu.add(Menu.NONE, ACTION_COPY, Menu.NONE, R.string.copy_text).setShowAsAction(show);
-                menu.add(Menu.NONE, ACTION_PASTE, Menu.NONE, R.string.paste_text).setEnabled(clipboard.hasPrimaryClip()).setShowAsAction(show);
+                menu.add(Menu.NONE, ACTION_PASTE, Menu.NONE, R.string.paste_text).setEnabled(clipboard != null && clipboard.hasPrimaryClip()).setShowAsAction(show);
                 menu.add(Menu.NONE, ACTION_MORE, Menu.NONE, R.string.text_selection_more);
                 return true;
             }
@@ -132,7 +135,7 @@ public class TextSelectionCursorController implements CursorController {
 
                 switch (item.getItemId()) {
                     case ACTION_COPY:
-                        String selectedText = terminalView.mEmulator.getSelectedText(mSelX1, mSelY1, mSelX2, mSelY2).trim();
+                        String selectedText = getSelectedText();
                         terminalView.mTermSession.onCopyTextToClipboard(selectedText);
                         terminalView.stopTextSelectionMode();
                         break;
@@ -141,7 +144,13 @@ public class TextSelectionCursorController implements CursorController {
                         terminalView.mTermSession.onPasteTextFromClipboard();
                         break;
                     case ACTION_MORE:
-                        terminalView.stopTextSelectionMode(); //we stop text selection first, otherwise handles will show above popup
+                        // We first store the selected text in case TerminalViewClient needs the
+                        // selected text before MORE button was pressed since we are going to
+                        // stop selection mode
+                        mStoredSelectedText = getSelectedText();
+                        // The text selection needs to be stopped before showing context menu,
+                        // otherwise handles will show above popup
+                        terminalView.stopTextSelectionMode();
                         terminalView.showContextMenu();
                         break;
                 }
@@ -183,14 +192,19 @@ public class TextSelectionCursorController implements CursorController {
                 int y1 = Math.round((mSelY1 - 1 - terminalView.getTopRow()) * terminalView.mRenderer.getFontLineSpacing());
                 int y2 = Math.round((mSelY2 + 1 - terminalView.getTopRow()) * terminalView.mRenderer.getFontLineSpacing());
 
-
                 if (x1 > x2) {
                     int tmp = x1;
                     x1 = x2;
                     x2 = tmp;
                 }
 
-                outRect.set(x1, y1 + mHandleHeight, x2, y2 + mHandleHeight);
+                int terminalBottom = terminalView.getBottom();
+                int top = y1 + mHandleHeight;
+                int bottom = y2 + mHandleHeight;
+                if (top > terminalBottom) top = terminalBottom;
+                if (bottom > terminalBottom) bottom = terminalBottom;
+
+                outRect.set(x1, top, x2, bottom);
             }
         }, ActionMode.TYPE_FLOATING);
     }
@@ -351,6 +365,22 @@ public class TextSelectionCursorController implements CursorController {
         sel[3] = mSelX2;
     }
 
+    /** Get the currently selected text. */
+    public String getSelectedText() {
+        return terminalView.mEmulator.getSelectedText(mSelX1, mSelY1, mSelX2, mSelY2);
+    }
+
+    /** Get the selected text stored before "MORE" button was pressed on the context menu. */
+    @Nullable
+    public String getStoredSelectedText() {
+        return mStoredSelectedText;
+    }
+
+    /** Unset the selected text stored before "MORE" button was pressed on the context menu. */
+    public void unsetStoredSelectedText() {
+        mStoredSelectedText = null;
+    }
+
     public ActionMode getActionMode() {
         return mActionMode;
     }

termux-shared/build.gradle

@@ -14,6 +14,7 @@ android {
         implementation "io.noties.markwon:ext-strikethrough:$markwonVersion"
         implementation "io.noties.markwon:linkify:$markwonVersion"
         implementation "io.noties.markwon:recycler:$markwonVersion"
+        implementation 'org.lsposed.hiddenapibypass:hiddenapibypass:5.0'
 
         // Do not increment version higher than 1.0.0-alpha09 since it will break ViewUtils and needs to be looked into
         // noinspection GradleDependency

termux-shared/src/main/java/com/termux/shared/android/SELinuxUtils.java

@@ -0,0 +1,96 @@
+package com.termux.shared.android;
+
+import android.annotation.SuppressLint;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.termux.shared.logger.Logger;
+import com.termux.shared.reflection.ReflectionUtils;
+
+import java.lang.reflect.Method;
+
+public class SELinuxUtils {
+
+    public static final String ANDROID_OS_SELINUX_CLASS = "android.os.SELinux";
+
+    private static final String LOG_TAG = "SELinuxUtils";
+
+    /**
+     * Gets the security context of the current process.
+     *
+     * @return Returns a {@link String} representing the security context of the current process.
+     * This will be {@code null} if an exception is raised.
+     */
+    @Nullable
+    public static String getContext() {
+        ReflectionUtils.bypassHiddenAPIReflectionRestrictions();
+        String methodName = "getContext";
+        try {
+            @SuppressLint("PrivateApi") Class<?> clazz = Class.forName(ANDROID_OS_SELINUX_CLASS);
+            Method method = ReflectionUtils.getDeclaredMethod(clazz, methodName);
+            if (method == null) {
+                Logger.logError(LOG_TAG, "Failed to get " + methodName + "() method of " + ANDROID_OS_SELINUX_CLASS + " class");
+                return null;
+            }
+
+            return (String) ReflectionUtils.invokeMethod(method, null).value;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to call " + methodName + "() method of " + ANDROID_OS_SELINUX_CLASS + " class", e);
+            return null;
+        }
+    }
+
+    /**
+     * Get the security context of a given process id.
+     *
+     * @param pid The pid of process.
+     * @return Returns a {@link String} representing the security context of the given pid.
+     * This will be {@code null} if an exception is raised.
+     */
+    @Nullable
+    public static String getPidContext(int pid) {
+        ReflectionUtils.bypassHiddenAPIReflectionRestrictions();
+        String methodName = "getPidContext";
+        try {
+            @SuppressLint("PrivateApi") Class<?> clazz = Class.forName(ANDROID_OS_SELINUX_CLASS);
+            Method method = ReflectionUtils.getDeclaredMethod(clazz, methodName, int.class);
+            if (method == null) {
+                Logger.logError(LOG_TAG, "Failed to get " + methodName + "() method of " + ANDROID_OS_SELINUX_CLASS + " class");
+                return null;
+            }
+
+            return (String) ReflectionUtils.invokeMethod(method, null, pid).value;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to call " + methodName + "() method of " + ANDROID_OS_SELINUX_CLASS + " class", e);
+            return null;
+        }
+    }
+
+    /**
+     * Get the security context of a file object.
+     *
+     * @param path The pathname of the file object.
+     * @return Returns a {@link String} representing the security context of the file.
+     * This will be {@code null} if an exception is raised.
+     */
+    @Nullable
+    public static String getFileContext(@NonNull String path) {
+        ReflectionUtils.bypassHiddenAPIReflectionRestrictions();
+        String methodName = "getFileContext";
+        try {
+            @SuppressLint("PrivateApi") Class<?> clazz = Class.forName(ANDROID_OS_SELINUX_CLASS);
+            Method method = ReflectionUtils.getDeclaredMethod(clazz, methodName, String.class);
+            if (method == null) {
+                Logger.logError(LOG_TAG, "Failed to get " + methodName + "() method of " + ANDROID_OS_SELINUX_CLASS + " class");
+                return null;
+            }
+
+            return (String) ReflectionUtils.invokeMethod(method, null, path).value;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to call " + methodName + "() method of " + ANDROID_OS_SELINUX_CLASS + " class", e);
+            return null;
+        }
+    }
+
+}

termux-shared/src/main/java/com/termux/shared/interact/MessageDialogUtils.java

@@ -4,11 +4,14 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.graphics.Color;
 import android.view.LayoutInflater;
 import android.view.View;
+import android.widget.Button;
 import android.widget.TextView;
 
 import com.termux.shared.R;
+import com.termux.shared.logger.Logger;
 
 public class MessageDialogUtils {
 
@@ -74,7 +77,19 @@ public class MessageDialogUtils {
         if (onDismiss != null)
             builder.setOnDismissListener(onDismiss);
 
-        builder.show();
+        AlertDialog dialog = builder.create();
+
+        dialog.setOnShowListener(dialogInterface -> {
+            Logger.logError("dialog");
+            Button button = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
+            if (button != null)
+                button.setTextColor(Color.BLACK);
+            button = dialog.getButton(AlertDialog.BUTTON_NEGATIVE);
+            if (button != null)
+                button.setTextColor(Color.BLACK);
+        });
+
+        dialog.show();
     }
 
     public static void exitAppWithErrorMessage(Context context, String titleText, String messageText) {

termux-shared/src/main/java/com/termux/shared/interact/ShareUtils.java

@@ -11,7 +11,6 @@ import android.net.Uri;
 import android.os.Environment;
 
 import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.content.ContextCompat;
 
 import com.termux.shared.R;
 import com.termux.shared.data.DataUtils;
@@ -23,6 +22,8 @@ import com.termux.shared.packages.PermissionUtils;
 
 import java.nio.charset.Charset;
 
+import javax.annotation.Nullable;
+
 public class ShareUtils {
 
     private static final String LOG_TAG = "ShareUtils";
@@ -56,6 +57,18 @@ public class ShareUtils {
      * @param text The text to share.
      */
     public static void shareText(final Context context, final String subject, final String text) {
+        shareText(context, subject, text, null);
+    }
+
+    /**
+     * Share text.
+     *
+     * @param context The context for operations.
+     * @param subject The subject for sharing.
+     * @param text The text to share.
+     * @param title The title for share menu.
+     */
+    public static void shareText(final Context context, final String subject, final String text, @Nullable final String title) {
         if (context == null || text == null) return;
 
         final Intent shareTextIntent = new Intent(Intent.ACTION_SEND);
@@ -63,29 +76,85 @@ public class ShareUtils {
         shareTextIntent.putExtra(Intent.EXTRA_SUBJECT, subject);
         shareTextIntent.putExtra(Intent.EXTRA_TEXT, DataUtils.getTruncatedCommandOutput(text, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, true, false, false));
 
-        openSystemAppChooser(context, shareTextIntent, context.getString(R.string.title_share_with));
+        openSystemAppChooser(context, shareTextIntent, DataUtils.isNullOrEmpty(title) ? context.getString(R.string.title_share_with) : title);
+    }
+
+
+
+    /** Wrapper for {@link #copyTextToClipboard(Context, String, String, String)} with `null` `clipDataLabel` and `toastString`. */
+    public static void copyTextToClipboard(Context context, final String text) {
+        copyTextToClipboard(context, null, text, null);
+    }
+
+    /** Wrapper for {@link #copyTextToClipboard(Context, String, String, String)} with `null` `clipDataLabel`. */
+    public static void copyTextToClipboard(Context context, final String text, final String toastString) {
+        copyTextToClipboard(context, null, text, toastString);
     }
 
     /**
-     * Copy the text to clipboard.
+     * Copy the text to primary clip of the clipboard.
      *
      * @param context The context for operations.
+     * @param clipDataLabel The label to show to the user describing the copied text.
      * @param text The text to copy.
      * @param toastString If this is not {@code null} or empty, then a toast is shown if copying to
      *                    clipboard is successful.
      */
-    public static void copyTextToClipboard(final Context context, final String text, final String toastString) {
+    public static void copyTextToClipboard(Context context, @Nullable final String clipDataLabel,
+                                           final String text, final String toastString) {
         if (context == null || text == null) return;
 
-        final ClipboardManager clipboardManager = ContextCompat.getSystemService(context, ClipboardManager.class);
+        ClipboardManager clipboardManager = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
+        if (clipboardManager == null) return;
 
-        if (clipboardManager != null) {
-            clipboardManager.setPrimaryClip(ClipData.newPlainText(null, DataUtils.getTruncatedCommandOutput(text, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, true, false, false)));
-            if (toastString != null && !toastString.isEmpty())
-                Logger.showToast(context, toastString, true);
-        }
+        clipboardManager.setPrimaryClip(ClipData.newPlainText(clipDataLabel,
+            DataUtils.getTruncatedCommandOutput(text, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES,
+                true, false, false)));
+
+        if (toastString != null && !toastString.isEmpty())
+            Logger.showToast(context, toastString, true);
     }
 
+
+
+    /**
+     * Wrapper for {@link #getTextFromClipboard(Context, boolean)} that returns primary text {@link String}
+     * if its set and not empty.
+     */
+    @Nullable
+    public static String getTextStringFromClipboardIfSet(Context context, boolean coerceToText) {
+        CharSequence textCharSequence = getTextFromClipboard(context, coerceToText);
+        if (textCharSequence == null) return null;
+        String textString = textCharSequence.toString();
+        return !textString.isEmpty() ? textString : null;
+    }
+
+    /**
+     * Get the text from primary clip of the clipboard.
+     *
+     * @param context The context for operations.
+     * @param coerceToText Whether to call {@link ClipData.Item#coerceToText(Context)} to coerce
+     *                     non-text data to text.
+     * @return Returns the {@link CharSequence} of primary text. This will be `null` if failed to get it.
+     */
+    @Nullable
+    public static CharSequence getTextFromClipboard(Context context, boolean coerceToText) {
+        if (context == null) return null;
+
+        ClipboardManager clipboardManager = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
+        if (clipboardManager == null) return null;
+
+        ClipData clipData = clipboardManager.getPrimaryClip();
+        if (clipData == null) return null;
+
+        ClipData.Item clipItem = clipData.getItemAt(0);
+        if (clipItem == null) return null;
+
+        return coerceToText ? clipItem.coerceToText(context) : clipItem.getText();
+    }
+
+
+
     /**
      * Open a url.
      *

termux-shared/src/main/java/com/termux/shared/logger/Logger.java

@@ -7,6 +7,7 @@ import android.util.Log;
 import android.widget.Toast;
 
 import com.termux.shared.R;
+import com.termux.shared.data.DataUtils;
 import com.termux.shared.termux.TermuxConstants;
 
 import java.io.IOException;
@@ -363,7 +364,7 @@ public class Logger {
 
 
     public static void showToast(final Context context, final String toastText, boolean longDuration) {
-        if (context == null) return;
+        if (context == null || DataUtils.isNullOrEmpty(toastText)) return;
 
         new Handler(Looper.getMainLooper()).post(() -> Toast.makeText(context, toastText, longDuration ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT).show());
     }

termux-shared/src/main/java/com/termux/shared/markdown/MarkdownUtils.java

@@ -191,9 +191,8 @@ public class MarkdownUtils {
     }
 
     public static Spanned getSpannedMarkdownText(Context context, String string) {
-
+        if (context == null || string == null) return null;
         final Markwon markwon = getSpannedMarkwonBuilder(context);
-
         return markwon.toMarkdown(string);
     }
 

termux-shared/src/main/java/com/termux/shared/packages/PackageUtils.java

@@ -8,6 +8,7 @@ import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.os.Build;
 import android.os.UserManager;
 
 import androidx.annotation.NonNull;
@@ -17,8 +18,10 @@ import com.termux.shared.R;
 import com.termux.shared.data.DataUtils;
 import com.termux.shared.interact.MessageDialogUtils;
 import com.termux.shared.logger.Logger;
+import com.termux.shared.reflection.ReflectionUtils;
 import com.termux.shared.termux.TermuxConstants;
 
+import java.lang.reflect.Field;
 import java.security.MessageDigest;
 import java.util.List;
 
@@ -94,6 +97,55 @@ public class PackageUtils {
         }
     }
 
+    /**
+     * Get the {@code seInfo} {@link Field} of the {@link ApplicationInfo} class.
+     *
+     * String retrieved from the seinfo tag found in selinux policy. This value can be set through
+     * the mac_permissions.xml policy construct. This value is used for setting an SELinux security
+     * context on the process as well as its data directory.
+     *
+     * https://cs.android.com/android/platform/superproject/+/android-7.1.0_r1:frameworks/base/core/java/android/content/pm/ApplicationInfo.java;l=609
+     * https://cs.android.com/android/platform/superproject/+/android-12.0.0_r32:frameworks/base/core/java/android/content/pm/ApplicationInfo.java;l=981
+     * https://cs.android.com/android/platform/superproject/+/android-7.0.0_r1:frameworks/base/services/core/java/com/android/server/pm/SELinuxMMAC.java;l=282
+     * https://cs.android.com/android/platform/superproject/+/android-12.0.0_r32:frameworks/base/services/core/java/com/android/server/pm/SELinuxMMAC.java;l=375
+     * https://cs.android.com/android/_/android/platform/frameworks/base/+/be0b8896d1bc385d4c8fb54c21929745935dcbea
+     *
+     * @param applicationInfo The {@link ApplicationInfo} for the package.
+     * @return Returns the selinux info or {@code null} if an exception was raised.
+     */
+    @Nullable
+    public static String getApplicationInfoSeInfoForPackage(@NonNull final ApplicationInfo applicationInfo) {
+        ReflectionUtils.bypassHiddenAPIReflectionRestrictions();
+        try {
+            return (String) ReflectionUtils.invokeField(ApplicationInfo.class, Build.VERSION.SDK_INT < Build.VERSION_CODES.O ? "seinfo" : "seInfo", applicationInfo).value;
+        } catch (Exception e) {
+            // ClassCastException may be thrown
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get seInfo field value for ApplicationInfo class", e);
+            return null;
+        }
+    }
+
+    /**
+     * Get the {@code seInfoUser} {@link Field} of the {@link ApplicationInfo} class.
+     *
+     * Also check {@link #getApplicationInfoSeInfoForPackage(ApplicationInfo)}.
+     *
+     * @param applicationInfo The {@link ApplicationInfo} for the package.
+     * @return Returns the selinux info user or {@code null} if an exception was raised.
+     */
+    @Nullable
+    public static String getApplicationInfoSeInfoUserForPackage(@NonNull final ApplicationInfo applicationInfo) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return null;
+        ReflectionUtils.bypassHiddenAPIReflectionRestrictions();
+        try {
+            return (String) ReflectionUtils.invokeField(ApplicationInfo.class, "seInfoUser", applicationInfo).value;
+        } catch (Exception e) {
+            // ClassCastException may be thrown
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get seInfoUser field value for ApplicationInfo class", e);
+            return null;
+        }
+    }
+
     /**
      * Get the app name for the package associated with the {@code context}.
      *

termux-shared/src/main/java/com/termux/shared/reflection/ReflectionUtils.java

@@ -0,0 +1,275 @@
+package com.termux.shared.reflection;
+
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.termux.shared.logger.Logger;
+
+import org.lsposed.hiddenapibypass.HiddenApiBypass;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+
+public class ReflectionUtils {
+
+    private static boolean HIDDEN_API_REFLECTION_RESTRICTIONS_BYPASSED = Build.VERSION.SDK_INT < Build.VERSION_CODES.P;
+
+    private static final String LOG_TAG = "ReflectionUtils";
+
+    /**
+     * Bypass android hidden API reflection restrictions.
+     * https://github.com/LSPosed/AndroidHiddenApiBypass
+     * https://developer.android.com/guide/app-compatibility/restrictions-non-sdk-interfaces
+     */
+    public static void bypassHiddenAPIReflectionRestrictions() {
+        if (!HIDDEN_API_REFLECTION_RESTRICTIONS_BYPASSED && Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            Logger.logDebug(LOG_TAG, "Bypassing android hidden api reflection restrictions");
+            HiddenApiBypass.addHiddenApiExemptions("");
+            HIDDEN_API_REFLECTION_RESTRICTIONS_BYPASSED = true;
+        }
+    }
+
+    /** Check if android hidden API reflection restrictions are bypassed. */
+    public static boolean areHiddenAPIReflectionRestrictionsBypassed() {
+        return HIDDEN_API_REFLECTION_RESTRICTIONS_BYPASSED;
+    }
+
+
+
+
+
+    /**
+     * Get a {@link Field} for the specified class.
+     *
+     * @param clazz The {@link Class} for which to return the field.
+     * @param fieldName The name of the {@link Field}.
+     * @return Returns the {@link Field} if getting the it was successful, otherwise {@code null}.
+     */
+    @Nullable
+    public static Field getDeclaredField(@NonNull Class<?> clazz, @NonNull String fieldName) {
+        try {
+            Field field = clazz.getDeclaredField(fieldName);
+            field.setAccessible(true);
+            return field;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get \"" + fieldName + "\" field for \"" + clazz.getName() + "\" class", e);
+            return null;
+        }
+    }
+
+
+
+    /** Class that represents result of invoking a field. */
+    public static class FieldInvokeResult {
+        public boolean success;
+        public Object value;
+
+        FieldInvokeResult(boolean success, Object value) {
+            this.value = success;
+            this.value = value;
+        }
+    }
+
+    /**
+     * Get a value for a {@link Field} of an object for the specified class.
+     *
+     * @param clazz The {@link Class} to which the object belongs to.
+     * @param fieldName The name of the {@link Field}.
+     * @param object The {@link Object} instance from which to get the field value.
+     * @return Returns the {@link FieldInvokeResult} of invoking the field. The
+     * {@link FieldInvokeResult#success} will be {@code true} if invoking the field was successful,
+     * otherwise {@code false}. The {@link FieldInvokeResult#value} will contain the field
+     * {@link Object} value.
+     */
+    @NonNull
+    public static <T> FieldInvokeResult invokeField(@NonNull Class<T> clazz, @NonNull String fieldName, T object) {
+        try {
+            Field field = getDeclaredField(clazz, fieldName);
+            if (field == null) return new FieldInvokeResult(false, null);
+            return new FieldInvokeResult(true, field.get(object));
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get \"" + fieldName + "\" field value for \"" + clazz.getName() + "\" class", e);
+            return new FieldInvokeResult(false, null);
+        }
+    }
+
+
+
+
+
+    /**
+     * Wrapper for {@link #getDeclaredMethod(Class, String, Class[])} without parameters.
+     */
+    @Nullable
+    public static Method getDeclaredMethod(@NonNull Class<?> clazz, @NonNull String methodName) {
+        return getDeclaredMethod(clazz, methodName, new Class<?>[0]);
+    }
+
+    /**
+     * Get a {@link Method} for the specified class with the specified parameters.
+     *
+     * @param clazz The {@link Class} for which to return the method.
+     * @param methodName The name of the {@link Method}.
+     * @param parameterTypes The parameter types of the method.
+     * @return Returns the {@link Method} if getting the it was successful, otherwise {@code null}.
+     */
+    @Nullable
+    public static Method getDeclaredMethod(@NonNull Class<?> clazz, @NonNull String methodName, Class<?>... parameterTypes) {
+        try {
+            Method method = clazz.getDeclaredMethod(methodName, parameterTypes);
+            method.setAccessible(true);
+            return method;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get \"" + methodName + "\" method for \"" + clazz.getName() + "\" class with parameter types: " + Arrays.toString(parameterTypes), e);
+            return null;
+        }
+    }
+
+
+
+    /**
+     * Wrapper for {@link #invokeVoidMethod(Method, Object, Object...)} without arguments.
+     */
+    public static boolean invokeVoidMethod(@NonNull Method method, Object obj) {
+        return invokeVoidMethod(method, obj, new Object[0]);
+    }
+
+    /**
+     * Invoke a {@link Method} on the specified object with the specified arguments that returns
+     * {@code void}.
+     *
+     * @param method The {@link Method} to invoke.
+     * @param obj The {@link Object} the method should be invoked from.
+     * @param args The arguments to pass to the method.
+     * @return Returns {@code true} if invoking the method was successful, otherwise {@code false}.
+     */
+    public static boolean invokeVoidMethod(@NonNull Method method, Object obj, Object... args) {
+        try {
+            method.setAccessible(true);
+            method.invoke(obj, args);
+            return true;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to invoke \"" + method.getName() + "\" method with object \"" + obj + "\" and args: " + Arrays.toString(args), e);
+            return false;
+        }
+    }
+
+
+
+    /** Class that represents result of invoking a method that has a non-void return type. */
+    public static class MethodInvokeResult {
+        public boolean success;
+        public Object value;
+
+        MethodInvokeResult(boolean success, Object value) {
+            this.value = success;
+            this.value = value;
+        }
+    }
+
+    /**
+     * Wrapper for {@link #invokeMethod(Method, Object, Object...)} without arguments.
+     */
+    @NonNull
+    public static MethodInvokeResult invokeMethod(@NonNull Method method, Object obj) {
+        return invokeMethod(method, obj, new Object[0]);
+    }
+
+    /**
+     * Invoke a {@link Method} on the specified object with the specified arguments.
+     *
+     * @param method The {@link Method} to invoke.
+     * @param obj The {@link Object} the method should be invoked from.
+     * @param args The arguments to pass to the method.
+     * @return Returns the {@link MethodInvokeResult} of invoking the method. The
+     * {@link MethodInvokeResult#success} will be {@code true} if invoking the method was successful,
+     * otherwise {@code false}. The {@link MethodInvokeResult#value} will contain the {@link Object}
+     * returned by the method.
+     */
+    @NonNull
+    public static MethodInvokeResult invokeMethod(@NonNull Method method, Object obj, Object... args) {
+        try {
+            method.setAccessible(true);
+            return new MethodInvokeResult(true, method.invoke(obj, args));
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to invoke \"" + method.getName() + "\" method with object \"" + obj + "\" and args: " + Arrays.toString(args), e);
+            return new MethodInvokeResult(false, null);
+        }
+    }
+
+
+
+    /**
+     * Wrapper for {@link #getConstructor(String, Class[])} without parameters.
+     */
+    @Nullable
+    public static Constructor<?> getConstructor(@NonNull String className) {
+        return getConstructor(className, new Class<?>[0]);
+    }
+
+    /**
+     * Wrapper for {@link #getConstructor(Class, Class[])} to get a {@link Constructor} for the
+     * {@code className}.
+     */
+    @Nullable
+    public static Constructor<?> getConstructor(@NonNull String className, Class<?>... parameterTypes) {
+        try {
+            return getConstructor(Class.forName(className), parameterTypes);
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get constructor for \"" + className + "\" class with parameter types: " + Arrays.toString(parameterTypes), e);
+            return null;
+        }
+    }
+
+    /**
+     * Get a {@link Constructor} for the specified class with the specified parameters.
+     *
+     * @param clazz The {@link Class} for which to return the constructor.
+     * @param parameterTypes The parameter types of the constructor.
+     * @return Returns the {@link Constructor} if getting the it was successful, otherwise {@code null}.
+     */
+    @Nullable
+    public static Constructor<?> getConstructor(@NonNull Class<?> clazz, Class<?>... parameterTypes) {
+        try {
+            Constructor<?> constructor = clazz.getConstructor(parameterTypes);
+            constructor.setAccessible(true);
+            return constructor;
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to get constructor for \"" + clazz.getName() + "\" class with parameter types: " + Arrays.toString(parameterTypes), e);
+            return null;
+        }
+    }
+
+
+
+    /**
+     * Wrapper for {@link #invokeConstructor(Constructor, Object...)} without arguments.
+     */
+    @Nullable
+    public static Object invokeConstructor(@NonNull Constructor<?> constructor) {
+        return invokeConstructor(constructor, new Object[0]);
+    }
+
+    /**
+     * Invoke a {@link Constructor} with the specified arguments.
+     *
+     * @param constructor The {@link Constructor} to invoke.
+     * @param args The arguments to pass to the constructor.
+     * @return Returns the new instance if invoking the constructor was successful, otherwise {@code null}.
+     */
+    @Nullable
+    public static Object invokeConstructor(@NonNull Constructor<?> constructor, Object... args) {
+        try {
+            constructor.setAccessible(true);
+            return constructor.newInstance(args);
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Failed to invoke \"" + constructor.getName() + "\" constructor with args: " + Arrays.toString(args), e);
+            return null;
+        }
+    }
+
+}

termux-shared/src/main/java/com/termux/shared/shell/TermuxShellUtils.java

@@ -1,9 +1,13 @@
 package com.termux.shared.shell;
 
 import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.os.Build;
 
 import androidx.annotation.NonNull;
 
+import com.termux.shared.android.SELinuxUtils;
+import com.termux.shared.data.DataUtils;
 import com.termux.shared.models.errors.Error;
 import com.termux.shared.termux.TermuxConstants;
 import com.termux.shared.file.FileUtils;
@@ -57,10 +61,42 @@ public class TermuxShellUtils {
         if (TERMUX_API_VERSION_NAME != null)
             environment.add("TERMUX_API_VERSION=" + TERMUX_API_VERSION_NAME);
 
+
+
         environment.add("TERM=xterm-256color");
         environment.add("COLORTERM=truecolor");
+
+        try {
+            ApplicationInfo applicationInfo = currentPackageContext.getPackageManager().getApplicationInfo(
+                TermuxConstants.TERMUX_PACKAGE_NAME, 0);
+            if (applicationInfo != null && !applicationInfo.enabled) {
+                applicationInfo = null;
+            }
+
+            if (applicationInfo != null) {
+                environment.add("TERMUX_APP__DATA_DIR=" + applicationInfo.dataDir);
+                environment.add("TERMUX_APP__LEGACY_DATA_DIR=" + "/data/data/" + applicationInfo.packageName);
+                environment.add("TERMUX_APP__BUILD_DATA_DIR=" + TermuxConstants.TERMUX_INTERNAL_PRIVATE_APP_DATA_DIR_PATH);
+
+                environment.add("TERMUX_APP__SE_FILE_CONTEXT=" + SELinuxUtils.getFileContext(applicationInfo.dataDir));
+
+                String seInfoUser = PackageUtils.getApplicationInfoSeInfoUserForPackage(applicationInfo);
+                environment.add("TERMUX_APP__SE_INFO=" + PackageUtils.getApplicationInfoSeInfoForPackage(applicationInfo) +
+                    (DataUtils.isNullOrEmpty(seInfoUser) ? "" : seInfoUser));
+            }
+
+        } catch (final Exception e) {
+            // Ignore
+        }
+
+        environment.add("TERMUX__ROOTFS=" + TermuxConstants.TERMUX_FILES_DIR_PATH);
         environment.add("HOME=" + TermuxConstants.TERMUX_HOME_DIR_PATH);
+        environment.add("TERMUX__HOME=" + TermuxConstants.TERMUX_HOME_DIR_PATH);
         environment.add("PREFIX=" + TermuxConstants.TERMUX_PREFIX_DIR_PATH);
+        environment.add("TERMUX__PREFIX=" + TermuxConstants.TERMUX_PREFIX_DIR_PATH);
+
+        environment.add("TERMUX__SE_PROCESS_CONTEXT=" + SELinuxUtils.getContext());
+
         environment.add("BOOTCLASSPATH=" + System.getenv("BOOTCLASSPATH"));
         environment.add("ANDROID_ROOT=" + System.getenv("ANDROID_ROOT"));
         environment.add("ANDROID_DATA=" + System.getenv("ANDROID_DATA"));
@@ -75,6 +111,8 @@ public class TermuxShellUtils {
         addToEnvIfPresent(environment, "ANDROID_RUNTIME_ROOT");
         addToEnvIfPresent(environment, "ANDROID_TZDATA_ROOT");
 
+        environment.add("ANDROID__BUILD_VERSION_SDK=" + Build.VERSION.SDK_INT);
+
         if (isFailSafe) {
             // Keep the default path so that system binaries can be used in the failsafe session.
             environment.add("PATH= " + System.getenv("PATH"));

termux-shared/src/main/java/com/termux/shared/terminal/io/extrakeys/ExtraKeysConstants.java

@@ -10,7 +10,10 @@ import java.util.Map;
 public class ExtraKeysConstants {
 
     /** Defines the repetitive keys that can be passed to {@link ExtraKeysView#setRepetitiveKeys(List)}. */
-    public static List<String> PRIMARY_REPETITIVE_KEYS = Arrays.asList("UP", "DOWN", "LEFT", "RIGHT", "BKSP", "DEL");
+    public static List<String> PRIMARY_REPETITIVE_KEYS = Arrays.asList(
+        "UP", "DOWN", "LEFT", "RIGHT",
+        "BKSP", "DEL",
+        "PGUP", "PGDN");
 
 
 

termux-shared/src/main/java/com/termux/shared/termux/AndroidUtils.java

@@ -2,11 +2,16 @@ package com.termux.shared.termux;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.pm.ApplicationInfo;
 import android.os.Build;
+import android.system.Os;
+import android.system.OsConstants;
 
 import androidx.annotation.NonNull;
 
 import com.google.common.base.Joiner;
+import com.termux.shared.android.SELinuxUtils;
+import com.termux.shared.data.DataUtils;
 import com.termux.shared.logger.Logger;
 import com.termux.shared.markdown.MarkdownUtils;
 import com.termux.shared.packages.PackageUtils;
@@ -32,6 +37,8 @@ public class AndroidUtils {
      */
     public static String getAppInfoMarkdownString(@NonNull final Context context) {
         StringBuilder markdownString = new StringBuilder();
+        ApplicationInfo applicationInfo = context.getApplicationInfo();
+        if (applicationInfo == null) return null;
 
         AndroidUtils.appendPropertyToMarkdown(markdownString,"APP_NAME", PackageUtils.getAppNameForPackage(context));
         AndroidUtils.appendPropertyToMarkdown(markdownString,"PACKAGE_NAME", PackageUtils.getPackageNameForPackage(context));
@@ -44,6 +51,13 @@ public class AndroidUtils {
             AndroidUtils.appendPropertyToMarkdown(markdownString,"IS_INSTALLED_ON_EXTERNAL_STORAGE", true);
         }
 
+        AndroidUtils.appendPropertyToMarkdown(markdownString,"SE_PROCESS_CONTEXT", SELinuxUtils.getContext());
+        AndroidUtils.appendPropertyToMarkdown(markdownString,"SE_FILE_CONTEXT", SELinuxUtils.getFileContext(context.getFilesDir().getAbsolutePath()));
+
+        String seInfoUser = PackageUtils.getApplicationInfoSeInfoUserForPackage(applicationInfo);
+        AndroidUtils.appendPropertyToMarkdown(markdownString,"SE_INFO", PackageUtils.getApplicationInfoSeInfoForPackage(applicationInfo) +
+            (DataUtils.isNullOrEmpty(seInfoUser) ? "" : seInfoUser));
+
         String filesDir = context.getFilesDir().getAbsolutePath();
         if (!filesDir.equals("/data/user/0/" + context.getPackageName() + "/files") &&
             !filesDir.equals("/data/data/" + context.getPackageName() + "/files"))
@@ -99,7 +113,19 @@ public class AndroidUtils {
         appendPropertyToMarkdown(markdownString, "BOARD", Build.BOARD);
         appendPropertyToMarkdown(markdownString, "HARDWARE", Build.HARDWARE);
         appendPropertyToMarkdown(markdownString, "DEVICE", Build.DEVICE);
+
         appendPropertyToMarkdown(markdownString, "SUPPORTED_ABIS", Joiner.on(", ").skipNulls().join(Build.SUPPORTED_ABIS));
+        appendPropertyToMarkdown(markdownString, "SUPPORTED_32_BIT_ABIS", Joiner.on(", ").skipNulls().join(Build.SUPPORTED_32_BIT_ABIS));
+        appendPropertyToMarkdown(markdownString, "SUPPORTED_64_BIT_ABIS", Joiner.on(", ").skipNulls().join(Build.SUPPORTED_64_BIT_ABIS));
+
+        // If on Android >= 15
+        if (Build.VERSION.SDK_INT >= 35) {
+            try {
+                appendPropertyToMarkdownIfSet(markdownString, "PAGE_SIZE", Os.sysconf(OsConstants._SC_PAGESIZE));
+            } catch (Throwable t) {
+                // Ignore
+            }
+        }
 
         markdownString.append("\n##\n");
 

termux-shared/src/main/java/com/termux/shared/termux/TermuxConstants.java

@@ -485,6 +485,12 @@ public final class TermuxConstants {
      * Termux miscellaneous urls.
      */
 
+    /** Termux Site */
+    public static final String TERMUX_SITE = TERMUX_APP_NAME + " Site"; // Default: "Termux Site"
+
+    /** Termux Site url */
+    public static final String TERMUX_SITE_URL = "https://termux.dev"; // Default: "https://termux.dev"
+
     /** Termux Wiki */
     public static final String TERMUX_WIKI = TERMUX_APP_NAME + " Wiki"; // Default: "Termux Wiki"
 
@@ -499,10 +505,10 @@ public final class TermuxConstants {
 
 
     /** Termux support email url */
-    public static final String TERMUX_SUPPORT_EMAIL_URL = "termuxreports@groups.io"; // Default: "termuxreports@groups.io"
+    public static final String TERMUX_SUPPORT_EMAIL_URL = "support@termux.dev"; // Default: "support@termux.dev"
 
     /** Termux support email mailto url */
-    public static final String TERMUX_SUPPORT_EMAIL_MAILTO_URL = "mailto:" + TERMUX_SUPPORT_EMAIL_URL; // Default: "mailto:termuxreports@groups.io"
+    public static final String TERMUX_SUPPORT_EMAIL_MAILTO_URL = "mailto:" + TERMUX_SUPPORT_EMAIL_URL; // Default: "mailto:support@termux.dev"
 
 
     /** Termux Reddit subreddit */
@@ -513,7 +519,7 @@ public final class TermuxConstants {
 
 
     /** Termux donate url */
-    public static final String TERMUX_DONATE_URL = TERMUX_PACKAGES_GITHUB_REPO_URL + "/wiki/Donate"; // Default: "https://github.com/termux/termux-packages/wiki/Donate"
+    public static final String TERMUX_DONATE_URL = TERMUX_SITE_URL + "/donate"; // Default: "https://termux.dev/donate"