Peng Yu,
Why Bison/Flex are not good at Fortran? What is special for Fortran's grammar?
Parsing Fortran is not that hard it is the lexical analysis that is very fiddly. Read about my recent attempts here: shape-of-code.coding-guidelines.com/2009/12/parsing-fortran-95 -- Derek M. Jones tel: +44 (0) 1252 520 667 Knowledge Software Ltd mailto:de...@knosof.co.uk Source code analysis http://www.knosof.co.uk _______________________________________________ help-bison@gnu.org http://lists.gnu.org/mailman/listinfo/help-bison