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- /* 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;
- } 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 */
-