(flex.info.gz) How can I conditionally compile or preprocess my flex input file?

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 How can I conditionally compile or preprocess my flex input file?
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 Flex doesn't have a preprocessor like C does.  You might try using m4,
 or the C preprocessor plus a sed script to clean up the result.
 

Info Catalog

(flex.info.gz) Is there a repository for flex scanners?

(flex.info.gz) FAQ

(flex.info.gz) Where can I find grammars for lex and yacc?