Re: push lexer?

Hans Aberg <>
Tue, 17 Jan 2012 21:06:08 +0100

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From: Hans Aberg <>
Newsgroups: comp.compilers
Date: Tue, 17 Jan 2012 21:06:08 +0100
Organization: A noiseless patient Spider
References: 12-01-032
Keywords: lex
Posted-Date: 17 Jan 2012 19:13:52 EST

On 2012/01/17 10:28, John Levine wrote:
>> Bison 2.5 has a "push api".
>> Does there exist something similar for lex of flex or does somebody know
>> a "push scanner"?

> [Not that I've ever seen. It would be straightforward to modify flex
> to create push lexers that work with push parsers, but so far nobody's
> done it. -John]

FYI, Flex is currently not maintained or developed.

[That's true, but it's sitting at Sourceforge, ready for anyone who
wants to pick it up. -John]

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