Using Context Free Grammers

[fordge]

hi Suppose I want an application which takes a source file and outputs its data members and functions. Supposed to develop into a kind of class view explorer. Regarding parsing the source file .... should i go for using regular expressions rules for this parsing or should i go for a language representation in context free grammer[CFG] and use the CFG rules for parsing or is there any other possible ideas for source file parsing awaiting advice fordge