/* vi:set ts=8 sts=4 sw=4: * * NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE * * This is NOT the original regular expression code as written by Henry * Spencer.  This code has been modified specifically for use with Vim, and * should not be used apart from compiling Vim.  If you want a good regular * expression library, get the original code. * * NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE */ #ifndef _REGEXP_H#define _REGEXP_H /* * The number of sub-matches is limited to 10. * The first one (index 0) is the whole match, referenced with "\0". * The second one (index 1) is the first sub-match, referenced with "\1". * This goes up to the tenth (index 9), referenced with "\9". */#define NSUBEXP  10 /* * Structure returned by vim_regcomp() to pass on to vim_regexec(). * These fields are only to be used in regexp.c! * See regep.c for an explanation. */typedef struct{    int			regstart;    char_u		reganch;    char_u		*regmust;    int			regmlen;    unsigned		regflags;    char_u		reghasz;    char_u		program[1];		/* actually longer.. */} regprog_T; /* * Structure to be used for single-line matching. * Sub-match "no" starts at "startp[no]" and ends just before "endp[no]". * When there is no match, the pointer is NULL. */typedef struct{    regprog_T		*regprog;    char_u		*startp[NSUBEXP];    char_u		*endp[NSUBEXP];    int			rm_ic;} regmatch_T; /* * Structure to be used for multi-line matching. * Sub-match "no" starts in line "startpos[no].lnum" column "startpos[no].col" * and ends in line "endpos[no].lnum" just before column "endpos[no].col". * The line numbers are relative to the first line, thus startpos[0].lnum is * always 0. * When there is no match, the line number is -1. */typedef struct{    regprog_T		*regprog;    lpos_T		startpos[NSUBEXP];    lpos_T		endpos[NSUBEXP];    int			rmm_ic;    colnr_T		rmm_maxcol;	/* when not zero: maximum column */} regmmatch_T; /* * Structure used to store external references: "\z\(\)" to "\z\1". * Use a reference count to avoid the need to copy this around.  When it goes * from 1 to zero the matches need to be freed. */typedef struct{    short		refcnt;    char_u		*matches[NSUBEXP];} reg_extmatch_T; #endif	/* _REGEXP_H */