Re: Looking for Unix lex for modern systems

gah4 <gah4@u.washington.edu>
Sun, 9 Jan 2022 17:03:02 -0800 (PST)

          From comp.compilers
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From: gah4 <gah4@u.washington.edu>
Newsgroups: comp.compilers
Date: Sun, 9 Jan 2022 17:03:02 -0800 (PST)
Organization: Compilers Central
References: 22-01-023 22-01-025 22-01-036
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="63462"; mail-complaints-to="abuse@iecc.com"
Keywords: lex, history, comment
Posted-Date: 09 Jan 2022 20:46:00 EST
In-Reply-To: 22-01-036

On Sunday, January 9, 2022 at 1:45:11 PM UTC-8, Aharon Robbins wrote:
> In article <22-0...@comp.compilers>, gah4 <ga...@u.washington.edu> wrote:
> >On Thursday, January 6, 2022 at 4:09:53 PM UTC-8, Aharon Robbins wrote:
> >> Can anyone point me at a version of Unix lex that will run on Linux?


> >A web search for lex source found this:


> >http://heirloom.sourceforge.net/devtools.html


> >which sounds like exactly what you want.
> I got this to build and run, but it ran out of buffer space. :-(


I compiled what I believe is actual lex on Linux. There were two compile
time errors to fix, and a bunch of warnings that I didn't fix.


The warnings are related to pointer conversions, so I hope it
does it right.


I then ran it with the sample program in the Wikipedia lex article,
and it ran out of buffer space. It isn't very big, either.


But then I ran it with the sample from the Solaris lex man page,
and it works. It even works with -r to generate ratfor output.
(As far as I know, flex doens't have the -r option.)


In any case, I don't understand the buffer space message.
[AT&T lex was a student summer project and it has a bunch of fixed
size buffers. -John]

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