From: Joao Pedrosa <joaopedrosa@...>
Date: 2005-01-16T04:28:52+09:00
Subject: Re: ruby-gnome2 : problem with signal "insert-text"

Hi,

On Sun, 16 Jan 2005 04:16:10 +0900, oxman <no@in-your-dream.net> wrote:
> I prefer a more generic way, such as :
> buffer.signal_connect_after('insert-text') do |a,iter,text,length|
>          color(buffer, iter)
> end
> 
> def color (buffer, iter)
>          first_char = iter
>          first_char.offset -= iter.line_offset
>          last_char = buffer.get_iter_at_offset(first_char.offset)
>          last_char.forward_to_line_end
>          line_text = first_char.get_visible_text(last_char)
>          f = File.open("ruby.color")
>          f.each_line do |pattern|
>                  pattern.strip!
>                  if (match = Regexp.new(pattern).match(line_text))
>                          length = match.pre_match.length
>                          start_iter =
> buffer.get_iter_at_offset(first_char.offset + length)
>                          length = match.post_match.length
>                          end_iter =
> buffer.get_iter_at_offset(last_char.offset - length)
>                          2.times
> {buffer.apply_tag(buffer.tag_table.lookup("blue"), start_iter, end_iter)}
>                  end
>          end
> end
> 
> sentinel% cat ruby.color
> #.+$
> if
> else

Cool. :-)

I don't know how I'm going to use it yet. I like the syntax highlight
provided by AEditor. I'm using it already, but only for the entire
buffer when loading or on demand. Your Regexes might be great as well.

It was cool to think about it in your example. I'm not in a hurry to
get this working, though. What I have is good enough for me (a simple
working editor)... But, I still need to provide full syntax
highlighting... hehe.

If GtkSourceText was available on Windows, then I would use it... But
it's not. :-)

Cheers,
Joao