[antlr-interest] antlr translation doubts

[vijay e]

Hello
I am doing  a code translator , where i just need to find certain patterns
in my C code and change few lines in tht pattern, is there any way where i
can do this translation without writin my entire C Grammar, because i am
interested in only very few patterns, so without writin the grammar for
other patterns , is thr a way to do the translation

any ideas will be of great use

-- 
Vijay.E,
Mtech (Pursuing),
Department of Computer Science,
IIT Madras.