Re: Give the Language a Rest motion

From: Date: Thu, 09 Mar 2006 23:26:20 +0000
Subject: Re: Give the Language a Rest motion
References: 1 2 3 4 5 6  Groups: php.internals 
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No speed boost with opcode caches, which will be bundled in PHP 6 :)

Zeev

At 01:15 10/03/2006, Marcus Boerger wrote:

Hello Sara,

  but if we were moving from flex to re2c for that tokenizing scripts we'd
get a nice speed boost, too. Typically re2c based scanners are 2 to 3 times
faster than lex based ones. And oh-re2c allows unicode scanning (2 byte
input) and you can use the same .re to generate two .c files if necessary.

best regards
matcus

Thursday, March 9, 2006, 6:44:45 PM, you wrote:


The inability to inject tokens and expressions into the lexer and
parser is another limitation on what can be done from extensions in
terms of syntax level features.  Yes, I know this is more of a problem
with bison and flex than with the design of ZE, but that doesn't make
it any less bothersome.


Do other compiler tools allow this?


I've heard second hand that lemon does.  But I'm quite certain that
rewriting the lexer/parser is not at the top of the list of productive ways
to advance the language.

-Sara




Best regards,
 Marcus

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