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More word forward emacs style controls

This commit is contained in:
Adam D. Ruppe 2021-05-04 09:56:39 -04:00
parent f75590c1f4
commit 537a9e6bdf
1 changed files with 30 additions and 6 deletions
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36
terminal.d
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@ -5296,14 +5296,30 @@ class LineGetter {
//deleteChar();
}
/++
Used by the word movement keys (e.g. alt+backspace) to find a word break.
History:
Added April 21, 2021 (dub v9.5)
Prior to that, [LineGetter] only used [std.uni.isWhite]. Now it uses this which
uses if not alphanum and not underscore.
You can subclass this to customize its behavior.
+/
bool isWordSeparatorCharacter(dchar d) {
import std.uni : isAlphaNum;
return !(isAlphaNum(d) || d == '_');
}
private int wordForwardIdx() {
int cursorPosition = this.cursorPosition;
import std.uni : isWhite;
if(cursorPosition == line.length)
return cursorPosition;
while(cursorPosition + 1 < line.length && isWhite(line[cursorPosition]))
while(cursorPosition + 1 < line.length && isWordSeparatorCharacter(line[cursorPosition]))
cursorPosition++;
while(cursorPosition + 1 < line.length && !isWhite(line[cursorPosition + 1]))
while(cursorPosition + 1 < line.length && !isWordSeparatorCharacter(line[cursorPosition + 1]))
cursorPosition++;
cursorPosition += 2;
if(cursorPosition > line.length)
@ -5324,13 +5340,12 @@ class LineGetter {
maybePositionCursor();
}
private int wordBackIdx() {
import std.uni : isWhite;
if(!line.length || !cursorPosition)
return cursorPosition;
int ret = cursorPosition - 1;
while(ret && isWhite(line[ret]))
while(ret && isWordSeparatorCharacter(line[ret]))
ret--;
while(ret && !isWhite(line[ret - 1]))
while(ret && !isWordSeparatorCharacter(line[ret - 1]))
ret--;
return ret;
}
@ -6052,6 +6067,15 @@ class LineGetter {
redraw();
}
break;
case '(':
if(!(ev.modifierState & ModifierState.alt))
goto default;
justHitTab = justKilled = false;
addChar('(');
addChar(cast(dchar) (')' | PRIVATE_BITS_MASK));
charBack();
redraw();
break;
case 'l', 12:
if(!(ev.modifierState & ModifierState.control))
goto default;