Category : C Source Code
Archive   : CSRC2.ZIP
Filename : SPAN.C

 
Output of file : SPAN.C contained in archive : CSRC2.ZIP
/*
* s p a n . c
*/

/*)LIBRARY
*/

#ifdef DOCUMENTATION

title span Pattern Match -- Span Required Matching Characters
index Pattern match -- span required matching characters

synopsis

#ifdef vms
#include "c:cset.h"
#else
#include
#endif

char *
span(s,cs)
char s[];
CSET *cs;

description

Span() matches the longest leading substring of s that consists
entirely of characters that are members of the cset cs. It returns
a pointer to the first character after the matched characters.

The null that terminates s is never considered to be a member of the
cset, and is never included in the spanned characters; if all the
other characters in s are members of cs, span() returns a pointer
to the trailing null.

Span() differs from ospan() in that it must find at least one matching
character; otherwise, it returns NULL.

bugs

author

Jerry Leichter

#endif

/*
)EDITLEVEL=01
* Edit history
* 0.0 19-Jul-82 JSL Invention
*/

#ifdef vms
#include "c:cset.h"
#else
#include
#endif
#define NULL 0

char *
span(s,cs)
register char *s;
register CSET *cs;
{ register char *p;

p = s;

while (*s && csmember(cs,*s))
s++;
return((p != s) ? s : NULL);
}


  3 Responses to “Category : C Source Code
Archive   : CSRC2.ZIP
Filename : SPAN.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/