I'm a newby for Flex and Bison, and I have tried to write flex lexic and then a Bison grammar, but I encounter the following problem*:
- a word can sometimes match with different definition in the flex definitions, and I would like Bison to find from it's grammar the good Flex definition to choose.
For example, if the word abc can be seen as category1 or category2 in flex, I would like Bison to choose category1 if it appears without syntax error as category1 in the Bison grammar, and incorrect as category2*;

Is there a way*? Or am I totally misunderstanding flex and bison*?*??

Thank you fior the answers...