I’ve subclassed NSTextView to make commented lines green, I use this code

• (void) didChangeText { NSLayoutManager *layoutManager = [self layoutManager]; NSRange lineGlyphRange, lineCharRange; NSString *prefix; NSColor *color; NSRange range = [self rangeForUserTextChange];

  (void)[layoutManager lineFragmentRectForGlyphAtIndex:range.location effectiveRange:&lineGlyphRange];
  lineCharRange = [layoutManager characterRangeForGlyphRange:lineGlyphRange actualGlyphRange:NULL];

  prefix = [self string] substringWithRange:lineCharRange] tringByTrimmingCharactersInSet:[[[NSCharacterSet whitespaceCharacterSet]]; if([prefix hasPrefix:@”#”]) color = [NSColor colorWithCalibratedRed:(float)42/255 green:(float)126/255 blue:(float)49/255 alpha:1.0f]; else color = [NSColor blackColor];

  [layoutManager addTemporaryAttributes: [NSDictionary dictionaryWithObjectsAndKeys:color, NSForegroundColorAttributeName, nil] forCharacterRange:lineCharRange]; }

the problem lies in (void)[layoutManager lineFragmentRectForGlyphAtIndex:range.location effectiveRange:&lineGlyphRange];

ex: when i type #colorize

it shows up like this ##c#co#col#colo#color#colori#coloriz#colorize

see the problem?

tnx

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Iv’e solved it when (void)[layoutManager lineFragmentRectForGlyphAtIndex:range.location effectiveRange:&lineGlyphRange]; * is called it *performs glyph generation and layout if needed.

so i used

NSRange range = [self rangeForUserTextChange]; lineCharRange = [[self string]lineRangeForRange:range];