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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 $$Revision: 4.1 $$Date: 92/08/07 18:26:35 $
*
* $Log: regexp.h,v $
* Revision 4.1 92/08/07 18:26:35 lwall
*
* Revision 4.0.1.2 91/11/05 18:24:31 lwall
* patch11: minimum match length calculation in regexp is now cumulative
* patch11: initial .* in pattern had dependency on value of $*
*
* 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;
SV *regstart; /* Internal use only. */
char *regstclass;
SV *regmust; /* Internal use only. */
I32 regback; /* Can regmust locate first try? */
I32 minlen; /* mininum possible length of $& */
I32 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
#define ROPT_IMPLICIT 4
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