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Handle terminal control sequences
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Codex 2026-07-07 10:55:06 +00:00
parent 981e94efc3
commit c4713dccbd
1 changed files with 61 additions and 1 deletions
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62
app/src/main/java/com/neatstudio/tmuxandroid/MainActivity.java
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@ -1949,6 +1949,14 @@ public final class MainActivity extends Activity {
while (index < text.length()) {
char item = text.charAt(index);
if (item == '\r') {
deleteCurrentTerminalLine(output);
index++;
continue;
}
if (item == '\b') {
if (output.length() > 0 && output.charAt(output.length() - 1) != '\n') {
output.delete(output.length() - 1, output.length());
}
index++;
continue;
}
@ -1963,15 +1971,32 @@ public final class MainActivity extends Activity {
fg = state[0];
bg = state[1];
bold = state[2] == 1;
} else if (command == 'K') {
String params = text.substring(index + 2, end);
if (params.startsWith("2")) {
deleteCurrentTerminalLine(output);
}
} else if (command == 'J') {
String params = text.substring(index + 2, end);
if (params.startsWith("2") || params.startsWith("3")) {
output.clear();
}
}
index = end + 1;
continue;
}
if (item == '\u001b') {
int skipped = skipNonCsiEscape(text, index);
if (skipped > index) {
index = skipped;
continue;
}
}
int runStart = index;
while (index < text.length()) {
char runItem = text.charAt(index);
if (runItem == '\r' || (runItem == '\u001b' && index + 1 < text.length() && text.charAt(index + 1) == '[')) {
if (runItem == '\r' || runItem == '\b' || runItem == '\u001b') {
break;
}
index++;
@ -1981,6 +2006,41 @@ public final class MainActivity extends Activity {
return output;
}
private void deleteCurrentTerminalLine(SpannableStringBuilder output) {
int start = output.length();
while (start > 0 && output.charAt(start - 1) != '\n') {
start--;
}
if (start < output.length()) {
output.delete(start, output.length());
}
}
private int skipNonCsiEscape(String text, int index) {
if (index + 1 >= text.length()) {
return index + 1;
}
char next = text.charAt(index + 1);
if (next == ']' || next == 'P' || next == '^' || next == '_') {
int cursor = index + 2;
while (cursor < text.length()) {
char item = text.charAt(cursor);
if (item == '\u0007') {
return cursor + 1;
}
if (item == '\u001b' && cursor + 1 < text.length() && text.charAt(cursor + 1) == '\\') {
return cursor + 2;
}
cursor++;
}
return text.length();
}
if (next == '(' || next == ')' || next == '*' || next == '+' || next == '-' || next == '.') {
return Math.min(index + 3, text.length());
}
return Math.min(index + 2, text.length());
}
private void appendTerminalRun(SpannableStringBuilder output, String text, int fg, int bg, boolean bold) {
if (text.isEmpty()) {
return;