diff options
Diffstat (limited to 'src/regexp.h')
| -rw-r--r-- | src/regexp.h | 179 |
1 files changed, 27 insertions, 152 deletions
diff --git a/src/regexp.h b/src/regexp.h index 0426f242a4..a843983e3c 100644 --- a/src/regexp.h +++ b/src/regexp.h @@ -1,152 +1,27 @@ -/* 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 - -/* - * In the NFA engine: how many braces are allowed. - * TODO(RE): Use dynamic memory allocation instead of static, like here - */ -#define NFA_MAX_BRACES 20 - -typedef struct regengine regengine_T; - -/* - * Structure returned by vim_regcomp() to pass on to vim_regexec(). - * This is the general structure. For the actual matcher, two specific - * structures are used. See code below. - */ -typedef struct regprog { - regengine_T *engine; - unsigned regflags; -} regprog_T; - -/* - * Structure used by the back track matcher. - * These fields are only to be used in regexp.c! - * See regexp.c for an explanation. - */ -typedef struct { - /* These two members implement regprog_T */ - regengine_T *engine; - unsigned regflags; - - int regstart; - char_u reganch; - char_u *regmust; - int regmlen; - char_u reghasz; - char_u program[1]; /* actually longer.. */ -} bt_regprog_T; - -/* - * Structure representing a NFA state. - * A NFA state may have no outgoing edge, when it is a NFA_MATCH state. - */ -typedef struct nfa_state nfa_state_T; -struct nfa_state { - int c; - nfa_state_T *out; - nfa_state_T *out1; - int id; - int lastlist[2]; /* 0: normal, 1: recursive */ - int val; -}; - -/* - * Structure used by the NFA matcher. - */ -typedef struct { - /* These two members implement regprog_T */ - regengine_T *engine; - unsigned regflags; - - nfa_state_T *start; /* points into state[] */ - - int reganch; /* pattern starts with ^ */ - int regstart; /* char at start of pattern */ - char_u *match_text; /* plain text to match with */ - - int has_zend; /* pattern contains \ze */ - int has_backref; /* pattern contains \1 .. \9 */ - int reghasz; -#ifdef DEBUG - char_u *pattern; -#endif - int nsubexp; /* number of () */ - int nstate; - nfa_state_T state[1]; /* actually longer.. */ -} nfa_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; - -struct regengine { - regprog_T *(*regcomp)(char_u*, int); - void (*regfree)(regprog_T *); - int (*regexec)(regmatch_T*, char_u*, colnr_T); -#if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ - || defined(FIND_REPLACE_DIALOG) || defined(PROTO) - int (*regexec_nl)(regmatch_T*, char_u*, colnr_T); -#endif - long (*regexec_multi)(regmmatch_T*, win_T*, buf_T*, linenr_T, colnr_T, - proftime_T*); -#ifdef DEBUG - char_u *expr; -#endif -}; - -#endif /* _REGEXP_H */ +#ifndef NEOVIM_REGEXP_H +#define NEOVIM_REGEXP_H +/* regexp.c */ +int re_multiline __ARGS((regprog_T *prog)); +int re_lookbehind __ARGS((regprog_T *prog)); +char_u *skip_regexp __ARGS((char_u *startp, int dirc, int magic, char_u **newp)); +int vim_regcomp_had_eol __ARGS((void)); +void free_regexp_stuff __ARGS((void)); +reg_extmatch_T *ref_extmatch __ARGS((reg_extmatch_T *em)); +void unref_extmatch __ARGS((reg_extmatch_T *em)); +char_u *regtilde __ARGS((char_u *source, int magic)); +int vim_regsub __ARGS((regmatch_T *rmp, char_u *source, char_u *dest, int copy, + int magic, + int backslash)); +int vim_regsub_multi __ARGS((regmmatch_T *rmp, linenr_T lnum, char_u *source, + char_u *dest, int copy, int magic, + int backslash)); +char_u *reg_submatch __ARGS((int no)); +regprog_T *vim_regcomp __ARGS((char_u *expr_arg, int re_flags)); +void vim_regfree __ARGS((regprog_T *prog)); +int vim_regexec __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); +int vim_regexec_nl __ARGS((regmatch_T *rmp, char_u *line, colnr_T col)); +long vim_regexec_multi __ARGS((regmmatch_T *rmp, win_T *win, buf_T *buf, + linenr_T lnum, colnr_T col, + proftime_T *tm)); +/* vim: set ft=c : */ +#endif /* NEOVIM_REGEXP_H */ |