Re: searching text

[Emmanuel Rodriguez <emmanuel rodriguez gmail com>]

On Jan 5, 2010, at 20:50, Chris Bare <chris bareflix com> wrote:

> I'm working on porting a simple text note taking application from  
> motif to
> gtk. The basics were very easy to get working, but I'm a little  
> stuck on how
> to implement search.
> In the old implementation, I got the text data, got the curser  
> offset and did
> the search with regex.
>
> Looking through the gtk docs, I see there are GtkTextView and  
> GtkSourceView
> widgets with corresponding Buffer objects. TextBuffer lists  
> insensitive search as a
> "possible future" feature, while SourceBuffer implements insensitive  
> search,
> but still lists regex as "possible future".
>
> I don't need most of what SourceView does, I'm only dealing with  
> plain text.
>
> 2 questions.
>
> #1 if I have:
>    GtkTextMark *mark;
>    GtkTextBuffer *bf;
>
>    data = gtk_text_buffer_get_text (bf, &start, &end, FALSE);
>    mark = gtk_text_buffer_get_insert (bf);
>
> is there a simple way to convert mark into an offset into data?
> I realize that won't work right with non-ascii characters.
>
> #2 is there yet another set of gtk objects that will give me regex  
> and case
> insensitive searches using an official api?
Glib has regular expressions and you can always transform an iter/mark  
to a string position.

Take a look at this demo:
http://github.com/potyl/gtk2-sourceview2/blob/master/examples/perl-editor.pl#L261
It was my attempt to mimic nedit (a great motif editor) in gtk2. I  
have there support for detach with regexpes event if gtkdourceview  
doest provide it.

> --
> Chris Bare
> chris bareflix com
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