Re: Reentrant flex & bison

haberg@matematik.su.se (Hans Aberg)
3 Apr 2004 09:03:01 -0500

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| List of all articles for this month |
From: haberg@matematik.su.se (Hans Aberg)
Newsgroups: comp.compilers
Date: 3 Apr 2004 09:03:01 -0500
Organization: Mathematics
References: 04-03-068 04-03-076 04-03-098
Keywords: lex
Posted-Date: 03 Apr 2004 09:03:00 EST

cherico@bonbon.net (cherico) wrote:


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


The mainstream (=original, offical) Flex is now actively developed, and
has a combined help and bugs mailing list: The Help-flex mailing list
    help-flex@gnu.org
    http://mail.gnu.org/mailman/listinfo/help-flex


>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.


One can get answers to such questions there.


    Hans Aberg


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