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unnamed-faq-82

To: Georg.Rehm@CL-KI.Uni-Osnabrueck.DE
Subject: Re: "flex scanner push-back overflow"
In-reply-to: Your message of Thu, 20 Aug 1998 09:47:54 PDT.
Date: Thu, 20 Aug 1998 07:05:35 PDT
From: Vern Paxson <vern>

> myflex/flex -8  sentag.tmp.l
> flex scanner push-back overflow

Flex itself uses a flex scanner.  That scanner is running out of buffer
space when it tries to unput() the humongous macro you've defined.  When
you remove the '/'s, you make it small enough so that it fits in the buffer;
removing spaces would do the same thing.

The fix is to either rethink how come you're using such a big macro and
perhaps there's another/better way to do it; or to rebuild flex's own
scan.c with a larger value for

	#define YY_BUF_SIZE 16384

- Vern

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