Haskell nested block comments parsed incorrectly

[Chet Gray]

Release: Ubuntu hardy (development branch) 8.04
Package: libgtksourceview2.0-common
Package version: 2.2.0-2

Haskell block comments can be nested correctly, unlike C block comments. A block comment inside another block comment should not prematurely close the outer block comment. However, GtkSourceView parses this incorrectly and treats nested comments as with C block comments, with the first closing comment marker reached closing all previously opened block comment levels, regardless of nesting depth.

Steps to reproduce:
1) Start an application using GtkSourceView, e.g. gedit
2) Set language to Haskell (haskell.lang). In gedit, View > Highlight Mode > Sources > Haskell
3) Type an opening block comment marker "{-". Text color changes to indicate a comment.
4) Type another opening block comment marker to nest a second block comment. Text color still indicates a comment.
5) Type a closing block comment marker to close the inner nested block comment.
6) Type some comment text.
7) Type another closing block comment marker to close the outer block comment.
Expected: The second closing block comment marker and the text before it should be colored to indicate a comment.
Actual: They are colored as normal text.

[Pedro Villavicencio (pedro)]

Thanks for your bug report. This bug has been reported to the developers of the software. You can track it and make comments here: http://bugzilla.gnome.org/show_bug.cgi?id=532964

[Greg A (etulfetulf)]

A fix for this has been released upstream and I cannot reproduce this in Intrepid Ubuntu testing.