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- <li><em>date</em>: Tue Oct 26 15:43:24 2004</li>
- <li><em>from</em>: charles.shapiro at nubridges.com (Charles Shapiro)</li>
- <li><em>in-reply-to</em>: <<a href="msg00910.html">[email protected]</a>></li>
- <li><em>references</em>: <<a href="msg00910.html">[email protected]</a>></li>
- <li><em>subject</em>: [ale] OT: Lex pattern expression struggles</li>
So it'd be something like
[:alnum:]{1,8} * (PARAM)|(TABLE)|(UPDATE) { return TOKEN_BLAH; }
Or you could just use make your token returner into a subroutine and
call it from three separate flex triggers, as:
FIRSTPART [:alnum:]{1,8} *
{FIRSTPART}PARAM { return_mytok() }
{FIRSTPART}TABLE { return_mytok() }
{FIRSTPART}UPDATE { return_mytok() }
%%
int return_mytok()
{
return TOKEN_BLAH;
}
Flex and bison are Way Cool. I did a project in 'em oncet just to play
with them. See <a rel="nofollow" href="http://tomshiro.org/coldread/">http://tomshiro.org/coldread/</a>
--CHS
On Tue, 2004-10-26 at 14:53, Jeff Layton wrote:
> Howdy!
>
> I'm struggling with a pattern expression for lex. I'm looking
> for an expression that handle an alphanumeric string of 1 to
> 8 characters (only letters and numbers) followed by at least
> one space and one of three keywords: "PARAM" "TABLE"
> or "UPDATE". I've tried several things with no success (I
> won't post them due to embarassment). Anyone have any
> suggestions?
>
> Thanks!
>
> Jeff
</pre>
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<li><strong><a name="00910" href="msg00910.html">[ale] OT: Lex pattern expression struggles</a></strong>
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