>> You mean, Fortran is not parseable by Bison, is that what you mean? > >Not practical.
I've written Fortran 77 parsers in yacc. It's quite easy. The lexical structure of Fortran is dreadful, but once you understand the hacks required, it's straightforward to pre-scan each statement to figure out whether it's an assignment or something else. After that, the tokenization is somewhat context dependent, but not hard. It got a lot easier after 1990 once you were allowed to pay attention to spaces. R's, John _______________________________________________ help-bison@gnu.org https://lists.gnu.org/mailman/listinfo/help-bison