Re: Reentrant flex & bison

bonzini@gnu.org (Paolo Bonzini)
3 Apr 2004 09:12:34 -0500

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From: bonzini@gnu.org (Paolo Bonzini)
Newsgroups: comp.compilers
Date: 3 Apr 2004 09:12:34 -0500
Organization: http://groups.google.com
References: 04-03-068 04-03-076 04-03-098
Keywords: lex, yacc
Posted-Date: 03 Apr 2004 09:12:34 EST

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


Yes, it is.


> I am curious why flex 2.5.4 removes the support of the
> reentrant option.


Because 31 is supposed to come after 4, 5, 6, ..., 29, 30 and not to
be a decimal.


> [I don't know who's doing the version at sourceforge, but it's not the
> mainstream one. -John]


Bruno Haible is maintaining this updated version of flex, as well as
being the maintainer of gperf (tool to create perfect hashes, very
widely used with manually written lexical analyzers).


Paolo


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