Re: Reentrant flex & bison

cherico@bonbon.net (cherico)
26 Mar 2004 22:08:01 -0500

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From: cherico@bonbon.net (cherico)
Newsgroups: comp.compilers
Date: 26 Mar 2004 22:08:01 -0500
Organization: http://groups.google.com
References: 04-03-068 04-03-076
Keywords: lex
Posted-Date: 26 Mar 2004 22:08:01 EST

I've kind of confused by the version numbers of flex.
I use flex from gnu (2.5.4) and I found that there is
only version 2.5.31 on http://lex.sourceforge.net/.


Apperantly, flex 2.5.4 doesn't support the
"% opetion reentrant", but it has the feature of
generating a c++ scanner class. While, flex 2.5.31
supports the reentrant option.


I suppose, to work with bison well, flex 2.5.31 is a
better choice.


I am curious why flex 2.5.4 removes the support of the
reentrant option.
[I don't know who's doing the version at sourceforge, but it's not the
mainstream one. -John]


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