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Bug 572938 Terminal: add support for reverse linefeed

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Scroll up is not working with `less`, `man`, probably
other programs.

Change-Id: I99d2472ab09df6b79fffbcaa581f3024c44d3ead
Signed-off-by: Fabrizio Iannetti <fabrizio.iannetti@gmail.com>
This commit is contained in:
Fabrizio Iannetti 2021-04-18 10:53:04 +02:00 • committed by Jonah Graham
parent 97c834c890
commit 6dbad0b10e
1 changed files with 8 additions and 0 deletions
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8
terminal/plugins/org.eclipse.tm.terminal.control/src/org/eclipse/tm/internal/terminal/emulator/VT100Emulator.java
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@ -395,6 +395,14 @@ public class VT100Emulator implements ControlListener {
resetTerminal(); resetTerminal();
break; break;
case 'M':
// Reverse line feed
ansiState = ANSISTATE_INITIAL;
if (text.getCursorLine() == 0)
text.scrollDown(1);
moveCursorUp(1);
break;
default: default:
Logger.log("Unsupported escape sequence: escape '" + character + "'"); //$NON-NLS-1$ //$NON-NLS-2$ Logger.log("Unsupported escape sequence: escape '" + character + "'"); //$NON-NLS-1$ //$NON-NLS-2$
ansiState = ANSISTATE_INITIAL; ansiState = ANSISTATE_INITIAL;