Mercurial > vim
view src/regexp.h @ 16623:23a9d0c624fa v8.1.1314
patch 8.1.1314: MSVC makefile is not nicely indented
commit https://github.com/vim/vim/commit/c049b52b9013055bcb8abbd8545d35591bc84094
Author: Bram Moolenaar <Bram@vim.org>
Date: Fri May 10 21:38:54 2019 +0200
patch 8.1.1314: MSVC makefile is not nicely indented
Problem: MSVC makefile is not nicely indented.
Solution: Addjust spaces in preprocessor directives. (Ken Takata)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Fri, 10 May 2019 21:45:06 +0200 |
parents | 3d6b282e2d6e |
children | 6e3dc2d630c2 |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * 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 /* * In the NFA engine: how many states are allowed */ #define NFA_MAX_STATES 100000 #define NFA_TOO_EXPENSIVE -1 /* Which regexp engine to use? Needed for vim_regcomp(). * Must match with 'regexpengine'. */ #define AUTOMATIC_ENGINE 0 #define BACKTRACKING_ENGINE 1 #define NFA_ENGINE 2 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; unsigned re_engine; // automatic, backtracking or nfa engine unsigned re_flags; // second argument for vim_regcomp() int re_in_use; // prog is being executed } 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 four members implement regprog_T */ regengine_T *engine; unsigned regflags; unsigned re_engine; unsigned re_flags; int re_in_use; int regstart; char_u reganch; char_u *regmust; int regmlen; #ifdef FEAT_SYN_HL char_u reghasz; #endif char_u program[1]; /* actually longer.. */ } bt_regprog_T; /* * Structure representing a NFA state. * An 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 three members implement regprog_T */ regengine_T *engine; unsigned regflags; unsigned re_engine; unsigned re_flags; int re_in_use; 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 */ #ifdef FEAT_SYN_HL int reghasz; #endif char_u *pattern; 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_nl)(regmatch_T *, char_u *, colnr_T, int); long (*regexec_multi)(regmmatch_T *, win_T *, buf_T *, linenr_T, colnr_T, proftime_T *, int *); char_u *expr; }; #endif /* _REGEXP_H */