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