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From: C H Forsyth <forsyth@vitanuova.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Replacements for lex
Date: Fri, 19 Jan 2007 20:35:39 +0000	[thread overview]
Message-ID: <cd128265c2aeb0f2ea89aa932a6f283a@vitanuova.com> (raw)
In-Reply-To: <7871fcf50701191126x2e2031a2v9723d52ad2db6344@mail.gmail.com>

>I expect the lexer in /sys/src/cmd/cc/ will be a good example.

it's a little more elaborate than some (not gcc!) because it takes on limited C preprocessing
duties as well.  you might also observe that the author enjoys his gotos, but since it is essentially
a finite state machine that seems fair enough, and furthermore he's allowed to take advantage of his
`licence to GOTO' awarded after a killer early paper. (Since that was about automata, it should probably
be an Earley paper, except that it's slightly earlier than that.)  anyway, he meant no harm.


  reply	other threads:[~2007-01-19 20:35 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-19 18:58 Joel Salomon
2007-01-19 19:12 ` Dan Cross
2007-01-19 19:26   ` Joel Salomon
2007-01-19 20:35     ` C H Forsyth [this message]
2007-01-19 21:06       ` erik quanstrom
2007-01-19 21:09       ` Taj Khattra
2007-01-19 21:18         ` Brantley Coile
2007-01-20  8:47     ` William Josephson
2007-01-20  9:08       ` Bruce Ellis
2007-01-19 19:13 ` Brantley Coile
2007-01-19 19:18 ` erik quanstrom
2007-01-19 19:24   ` Federico Benavento
2007-01-20  8:44 ` William Josephson

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