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From: bader+@andrew.cmu.edu (Miles Bader)
Newsgroups: comp.sys.amiga
Subject: Re: pattern matching library for 1.4
Message-ID: <kYCcNVy00UkaM9A=VE@andrew.cmu.edu>
Date: 5 Apr 89 21:34:25 GMT
References: <12314@louie.udel.EDU>
Organization: Information Technology Center, Carnegie Mellon, Pittsburgh, PA
Lines: 26
In-Reply-To: <12314@louie.udel.EDU>

MROBINSON@wash-vax.bbn.com writes:
> I've seen lots of talk about a library for filename pattern matching
> support in 1.4, but none about supporting pattern matching in strings!
> 
> I personally would like to see, IN ADDITION to the previously mentioned
> filename "parameter expansion" support, a supported call like
> 
> find_pattern_in_string(pattern,plen,string,slen,match_start,match_len)
...

If you're going to implement this, split it into separate compile-pattern and
find-match calls, so that repeated invocations are faster...

E.g.:

struct regexp *regexp_Compile(pattern);
char *pattern;

int /* boolean */ regexp_Match(re,str,strlen,matchP,matchlenP)
struct regexp *re;
char *str;
int strlen;
char **matchP;		/* out parameter, or NULL if not needed */
int *matchlenP;		/* out parameter, or NULL if not needed */

-Miles