Hi all,
I'm programming a syntax-highlighting engine on top of the new text
widget, but I get some segfaults. This is the start of the backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x4012aabc in _gtk_text_line_previous_could_contain_tag ()
from /usr/lib/libgtk-x11-2.0.so.0
#0 0x4012aabc in _gtk_text_line_previous_could_contain_tag ()
from /usr/lib/libgtk-x11-2.0.so.0
#1 0x4013a597 in gtk_text_iter_backward_to_tag_toggle ()
from /usr/lib/libgtk-x11-2.0.so.0
#2 0x0804b790 in doc_highlight_line (doc=0x808a4e8) at highlight5.c:769
#3 0x0804bcd3 in buffer_insert_text_lcb (textbuffer=0x808ab60,
iter=0xbfffe104, string=0x81475d0 " ", len=1, doc=0x808a4e8)
at highlight5.c:886
The line of code where the segfault happens:
gtk_text_iter_backward_to_tag_toggle(&itstart,slist->data);
itstart is initialized from:
GtkTextMark *mark = gtk_text_buffer_get_insert(doc->buffer);
gtk_text_buffer_get_iter_at_mark(doc->buffer, &itstart, mark);
gtk_text_iter_set_line_offset(&itstart, 0);
slist is a taglist initialized from:
gtk_text_iter_get_tags(&itstart)
so itstart is an iterator on the start of the line, and the tag I look for
is actually started at the same position itstart is on at that very
moment.
it's not easy to reproduce in a very short program, so I hope this
information will do. I noticed Debian also has a gtk2-debug package,
would it help to do a backtrace with that package installed?
regards,
Olivier
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