minix/commands/awk.old/regexp.h
2010-03-17 16:11:48 +00:00

23 lines
638 B
C

/*
* Definitions etc. for regexp(3) routines.
*
* Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
* not the System V one.
*/
#define ushort unsigned short
#define CHARBITS 0xffff
#define NSUBEXP 10
typedef struct regexp {
ushort *startp[NSUBEXP];
ushort *endp[NSUBEXP];
ushort regstart; /* Internal use only. */
ushort reganch; /* Internal use only. */
ushort *regmust; /* Internal use only. */
int regmlen; /* Internal use only. */
ushort program[1]; /* Unwarranted chumminess with compiler. */
} regexp;
extern regexp *regcomp();
extern int regexec();
extern int regsub();
extern int regerror();