[gtksourceview/gnome-2-28] Special case "_" after latex commands. Bug #593222.

[Paolo Borelli <pborelli src gnome org>]

commit 177b5f64f76246cd7a5062f585ee4e28b86f37d3
Author: Paolo Borelli <pborelli gnome org>
Date:   Wed Jan 6 21:50:03 2010 +0100

    Special case "_" after latex commands. Bug #593222.

 gtksourceview/language-specs/latex.lang |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gtksourceview/language-specs/latex.lang b/gtksourceview/language-specs/latex.lang
index 61c0993..ad0e0c9 100644
--- a/gtksourceview/language-specs/latex.lang
+++ b/gtksourceview/language-specs/latex.lang
@@ -47,7 +47,9 @@
   <definitions>
         <context id="common-commands" style-ref="common-commands">
             <prefix>\\</prefix>
-
+            <!-- We need to special case "_" since it is not considered a
+              boundary but it is allowed in latex -->
+            <suffix>(\b|(?=_))</suffix>
             <keyword>Alpha</keyword>
             <keyword>Beta</keyword>
             <keyword>Chi</keyword>