* [9fans] lex witchcraft
@ 2002-01-18 22:28 Lyndon Nerenberg
0 siblings, 0 replies; 5+ messages in thread
From: Lyndon Nerenberg @ 2002-01-18 22:28 UTC (permalink / raw)
To: 9fans
/sys/src/cmd/grap/grapl.lx contains the fragment
if (yybgin-yysvec-1 == 0) { /* witchcraft */
BEGIN A;
}
What is this doing? (pic does this as well.)
--lyndon
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [9fans] lex witchcraft
@ 2002-01-22 20:45 Russ Cox
0 siblings, 0 replies; 5+ messages in thread
From: Russ Cox @ 2002-01-22 20:45 UTC (permalink / raw)
To: 9fans
Looks like it only clobbers the
current state the first time it is called,
presumably so that when you ask for the next
token the lexer doesn't reset itself.
Russ
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [9fans] lex witchcraft
2002-01-18 22:38 rob pike
@ 2002-01-21 10:00 ` Boyd Roberts
0 siblings, 0 replies; 5+ messages in thread
From: Boyd Roberts @ 2002-01-21 10:00 UTC (permalink / raw)
To: 9fans
rob pike wrote:
> Be careful or you might end up in a comment too.
"rob made me do it"
So, there is a precdent.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [9fans] lex witchcraft
@ 2002-01-18 22:38 rob pike
2002-01-21 10:00 ` Boyd Roberts
0 siblings, 1 reply; 5+ messages in thread
From: rob pike @ 2002-01-18 22:38 UTC (permalink / raw)
To: 9fans
> also you may want to:
>
> % grep such /sys/src/9/pc/ether79c970.c
>
> i'd like to hear this one's story :)
>
Be careful or you might end up in a comment too.
-rob
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [9fans] lex witchcraft
@ 2002-01-18 22:34 andrey mirtchovski
0 siblings, 0 replies; 5+ messages in thread
From: andrey mirtchovski @ 2002-01-18 22:34 UTC (permalink / raw)
To: 9fans
also you may want to:
% grep such /sys/src/9/pc/ether79c970.c
i'd like to hear this one's story :)
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2002-01-22 20:45 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-01-18 22:28 [9fans] lex witchcraft Lyndon Nerenberg
2002-01-18 22:34 andrey mirtchovski
2002-01-18 22:38 rob pike
2002-01-21 10:00 ` Boyd Roberts
2002-01-22 20:45 Russ Cox
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