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/*
* Definitions etc. for regexp(3) routines.
*
* Caveat: this is V8 regexp(3) [actually, a reimplementation thereof],
* not the System V one.
*/
/* $RCSfile: regexp.h,v $$Revision: 4.0.1.1 $$Date: 91/06/07 11:51:18 $
*
* $Log: regexp.h,v $
* Revision 4.0.1.1 91/06/07 11:51:18 lwall
* patch4: new copyright notice
* patch4: // wouldn't use previous pattern if it started with a null character
* patch4: $` was busted inside s///
*
* Revision 4.0 91/03/20 01:39:23 lwall
* 4.0 baseline.
*
*/
typedef struct regexp {
char **startp;
char **endp;
STR *regstart; /* Internal use only. */
char *regstclass;
STR *regmust; /* Internal use only. */
int regback; /* Can regmust locate first try? */
int prelen; /* length of precomp */
char *precomp; /* pre-compilation regular expression */
char *subbase; /* saved string so \digit works forever */
char *subbeg; /* same, but not responsible for allocation */
char *subend; /* end of subbase */
char reganch; /* Internal use only. */
char do_folding; /* do case-insensitive match? */
char lastparen; /* last paren matched */
char nparens; /* number of parentheses */
char program[1]; /* Unwarranted chumminess with compiler. */
} regexp;
#define ROPT_ANCH 1
#define ROPT_SKIP 2
regexp *regcomp();
int regexec();
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