X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8cc4850c2d5cf91c7e1909862846e8ada4c52961..4ea56379e36642cc37bef412501bc6043ca0cc4a:/src/regex/regguts.h diff --git a/src/regex/regguts.h b/src/regex/regguts.h index db23fc4000..be5041d920 100644 --- a/src/regex/regguts.h +++ b/src/regex/regguts.h @@ -1,21 +1,21 @@ /* * Internal interface definitions, etc., for the reg package * - * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved. - * + * Copyright (c) 1998, 1999 Henry Spencer. All rights reserved. + * * Development of this software was funded, in part, by Cray Research Inc., * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics * Corporation, none of whom are responsible for the results. The author - * thanks all of them. - * + * thanks all of them. + * * Redistribution and use in source and binary forms -- with or without * modification -- are permitted for any purpose, provided that * redistributions in source form retain this entire copyright notice and * indicate the origin and nature of any modifications. - * + * * I'd appreciate being given credit for this package in the documentation * of software which uses it, but that is not a requirement. - * + * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL @@ -26,8 +26,6 @@ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $Id$ */ @@ -39,49 +37,67 @@ */ #include "regcustom.h" - - /* * Things that regcustom.h might override. */ +/* standard header files (NULL is a reasonable indicator for them) */ +#ifndef NULL +#include +#include +#include +#include +#include +#endif + /* assertions */ -#ifndef __WXWINCE__ #ifndef assert -#ifndef REG_DEBUG -# ifndef NDEBUG -# define NDEBUG /* no assertions */ +# ifndef REG_DEBUG +# define NDEBUG /* no assertions */ # endif -#endif #include #endif -#else -// To do: assertion on WinCE -#define assert(x) -#endif /* voids */ +#ifndef VOID +#define VOID void /* for function return values */ +#endif #ifndef DISCARD -#define DISCARD void /* for throwing values away */ +#define DISCARD VOID /* for throwing values away */ +#endif +#ifndef PVOID +#define PVOID VOID * /* generic pointer */ #endif #ifndef VS -#define VS(x) ((void *)(x)) /* cast something to generic ptr */ +#define VS(x) ((PVOID)(x)) /* cast something to generic ptr */ +#endif +#ifndef NOPARMS +#define NOPARMS VOID /* for empty parm lists */ +#endif + +/* const */ +#ifndef CONST +#define CONST const /* for old compilers, might be empty */ #endif /* function-pointer declarator */ #ifndef FUNCPTR -#define FUNCPTR(name, args) (*name) args +#if __STDC__ >= 1 +#define FUNCPTR(name, args) (*name)args +#else +#define FUNCPTR(name, args) (*name)() +#endif #endif /* memory allocation */ #ifndef MALLOC -#define MALLOC(n) malloc(n) +#define MALLOC(n) malloc(n) #endif #ifndef REALLOC -#define REALLOC(p, n) realloc(VS(p), n) +#define REALLOC(p, n) realloc(VS(p), n) #endif #ifndef FREE -#define FREE(p) free(VS(p)) +#define FREE(p) free(VS(p)) #endif /* want size of a char in bits, and max value in bounded quantifiers */ @@ -89,7 +105,7 @@ #include #endif #ifndef _POSIX2_RE_DUP_MAX -#define _POSIX2_RE_DUP_MAX 255 /* normally from */ +#define _POSIX2_RE_DUP_MAX 255 /* normally from */ #endif @@ -98,13 +114,13 @@ * misc */ -#define NOTREACHED 0 -#define xxx 1 +#define NOTREACHED 0 +#define xxx 1 -#define DUPMAX _POSIX2_RE_DUP_MAX -#define INFINITY (DUPMAX+1) +#define DUPMAX _POSIX2_RE_DUP_MAX +#define INFINITY (DUPMAX+1) -#define REMAGIC 0xfed7 /* magic number for main struct */ +#define REMAGIC 0xfed7 /* magic number for main struct */ @@ -113,12 +129,12 @@ */ #ifdef REG_DEBUG /* FDEBUG does finite-state tracing */ -#define FDEBUG(arglist) { if (v->eflags®_FTRACE) printf arglist; } +#define FDEBUG(arglist) { if (v->eflags®_FTRACE) printf arglist; } /* MDEBUG does higher-level tracing */ -#define MDEBUG(arglist) { if (v->eflags®_MTRACE) printf arglist; } +#define MDEBUG(arglist) { if (v->eflags®_MTRACE) printf arglist; } #else -#define FDEBUG(arglist) {} -#define MDEBUG(arglist) {} +#define FDEBUG(arglist) {} +#define MDEBUG(arglist) {} #endif @@ -126,25 +142,24 @@ /* * bitmap manipulation */ -#define UBITS (CHAR_BIT * sizeof(unsigned)) -#define BSET(uv, sn) ((uv)[(sn)/UBITS] |= (unsigned)1 << ((sn)%UBITS)) -#define ISBSET(uv, sn) ((uv)[(sn)/UBITS] & ((unsigned)1 << ((sn)%UBITS))) +#define UBITS (CHAR_BIT * sizeof(unsigned)) +#define BSET(uv, sn) ((uv)[(sn)/UBITS] |= (unsigned)1 << ((sn)%UBITS)) +#define ISBSET(uv, sn) ((uv)[(sn)/UBITS] & ((unsigned)1 << ((sn)%UBITS))) /* - * We dissect a chr into byts for colormap table indexing. Here we define - * a byt, which will be the same as a byte on most machines... The exact + * We dissect a chr into byts for colormap table indexing. Here we define + * a byt, which will be the same as a byte on most machines... The exact * size of a byt is not critical, but about 8 bits is good, and extraction * of 8-bit chunks is sometimes especially fast. */ #ifndef BYTBITS -#define BYTBITS 8 /* bits in a byt */ +#define BYTBITS 8 /* bits in a byt */ #endif -#define BYTTAB (1<flags&FREECOL) - union tree *block; /* block of solid color, if any */ +struct colordesc { + uchr nchrs; /* number of chars of this color */ + color sub; /* open subcolor (if any); free chain ptr */ +# define NOSUB COLORLESS + struct arc *arcs; /* color chain */ + int flags; +# define FREECOL 01 /* currently free */ +# define PSEUDO 02 /* pseudocolor, no real chars */ +# define UNUSEDCOLOR(cd) ((cd)->flags&FREECOL) + union tree *block; /* block of solid color, if any */ }; /* the color map itself */ -struct colormap -{ - int magic; -#define CMMAGIC 0x876 - struct vars *v; /* for compile error reporting */ - size_t ncds; /* number of colordescs */ - size_t max; /* highest in use */ - color free; /* beginning of free chain (if non-0) */ +struct colormap { + int magic; +# define CMMAGIC 0x876 + struct vars *v; /* for compile error reporting */ + size_t ncds; /* number of colordescs */ + size_t max; /* highest in use */ + color free; /* beginning of free chain (if non-0) */ struct colordesc *cd; -#define CDEND(cm) (&(cm)->cd[(cm)->max + 1]) -#define NINLINECDS ((size_t)10) +# define CDEND(cm) (&(cm)->cd[(cm)->max + 1]) +# define NINLINECDS ((size_t)10) struct colordesc cdspace[NINLINECDS]; - union tree tree[NBYTS]; /* tree top, plus fill blocks */ + union tree tree[NBYTS]; /* tree top, plus fill blocks */ }; /* optimization magic to do fast chr->color mapping */ -#define B0(c) ((c) & BYTMASK) -#define B1(c) (((c)>>BYTBITS) & BYTMASK) -#define B2(c) (((c)>>(2*BYTBITS)) & BYTMASK) -#define B3(c) (((c)>>(3*BYTBITS)) & BYTMASK) +#define B0(c) ((c) & BYTMASK) +#define B1(c) (((c)>>BYTBITS) & BYTMASK) +#define B2(c) (((c)>>(2*BYTBITS)) & BYTMASK) +#define B3(c) (((c)>>(3*BYTBITS)) & BYTMASK) #if NBYTS == 1 -#define GETCOLOR(cm, c) ((cm)->tree->tcolor[B0(c)]) +#define GETCOLOR(cm, c) ((cm)->tree->tcolor[B0(c)]) #endif /* beware, for NBYTS>1, GETCOLOR() is unsafe -- 2nd arg used repeatedly */ #if NBYTS == 2 -#define GETCOLOR(cm, c) ((cm)->tree->tptr[B1(c)]->tcolor[B0(c)]) +#define GETCOLOR(cm, c) ((cm)->tree->tptr[B1(c)]->tcolor[B0(c)]) #endif #if NBYTS == 4 -#define GETCOLOR(cm, c) ((cm)->tree->tptr[B3(c)]->tptr[B2(c)]->tptr[B1(c)]->tcolor[B0(c)]) +#define GETCOLOR(cm, c) ((cm)->tree->tptr[B3(c)]->tptr[B2(c)]->tptr[B1(c)]->tcolor[B0(c)]) #endif @@ -241,23 +249,22 @@ struct colormap * Interface definitions for locale-interface functions in locale.c. * Multi-character collating elements (MCCEs) cause most of the trouble. */ -struct cvec -{ - int nchrs; /* number of chrs */ - int chrspace; /* number of chrs possible */ - chr *chrs; /* pointer to vector of chrs */ - int nranges; /* number of ranges (chr pairs) */ - int rangespace; /* number of chrs possible */ - chr *ranges; /* pointer to vector of chr pairs */ - int nmcces; /* number of MCCEs */ - int mccespace; /* number of MCCEs possible */ - int nmccechrs; /* number of chrs used for MCCEs */ - chr *mcces[1]; /* pointers to 0-terminated MCCEs */ - /* and both batches of chrs are on the end */ +struct cvec { + int nchrs; /* number of chrs */ + int chrspace; /* number of chrs possible */ + chr *chrs; /* pointer to vector of chrs */ + int nranges; /* number of ranges (chr pairs) */ + int rangespace; /* number of chrs possible */ + chr *ranges; /* pointer to vector of chr pairs */ + int nmcces; /* number of MCCEs */ + int mccespace; /* number of MCCEs possible */ + int nmccechrs; /* number of chrs used for MCCEs */ + chr *mcces[1]; /* pointers to 0-terminated MCCEs */ + /* and both batches of chrs are on the end */ }; /* caution: this value cannot be changed easily */ -#define MAXMCCE 2 /* length of longest MCCE */ +#define MAXMCCE 2 /* length of longest MCCE */ @@ -269,59 +276,54 @@ struct cvec */ struct state; -struct arc -{ - int type; -#define ARCFREE '\0' - color co; - struct state *from; /* where it's from (and contained within) */ - struct state *to; /* where it's to */ - struct arc *outchain; /* *from's outs chain or free chain */ -#define freechain outchain - struct arc *inchain; /* *to's ins chain */ - struct arc *colorchain; /* color's arc chain */ +struct arc { + int type; +# define ARCFREE '\0' + color co; + struct state *from; /* where it's from (and contained within) */ + struct state *to; /* where it's to */ + struct arc *outchain; /* *from's outs chain or free chain */ +# define freechain outchain + struct arc *inchain; /* *to's ins chain */ + struct arc *colorchain; /* color's arc chain */ }; -struct arcbatch -{ /* for bulk allocation of arcs */ +struct arcbatch { /* for bulk allocation of arcs */ struct arcbatch *next; -#define ABSIZE 10 - struct arc a[ABSIZE]; +# define ABSIZE 10 + struct arc a[ABSIZE]; }; -struct state -{ - int no; -#define FREESTATE (-1) - char flag; /* marks special states */ - int nins; /* number of inarcs */ - struct arc *ins; /* chain of inarcs */ - int nouts; /* number of outarcs */ - struct arc *outs; /* chain of outarcs */ - struct arc *free; /* chain of free arcs */ - struct state *tmp; /* temporary for traversal algorithms */ - struct state *next; /* chain for traversing all */ - struct state *prev; /* back chain */ - struct arcbatch oas; /* first arcbatch, avoid malloc in easy - * case */ - int noas; /* number of arcs used in first arcbatch */ +struct state { + int no; +# define FREESTATE (-1) + char flag; /* marks special states */ + int nins; /* number of inarcs */ + struct arc *ins; /* chain of inarcs */ + int nouts; /* number of outarcs */ + struct arc *outs; /* chain of outarcs */ + struct arc *free; /* chain of free arcs */ + struct state *tmp; /* temporary for traversal algorithms */ + struct state *next; /* chain for traversing all */ + struct state *prev; /* back chain */ + struct arcbatch oas; /* first arcbatch, avoid malloc in easy case */ + int noas; /* number of arcs used in first arcbatch */ }; -struct nfa -{ - struct state *pre; /* pre-initial state */ - struct state *init; /* initial state */ - struct state *final; /* final state */ - struct state *post; /* post-final state */ - int nstates; /* for numbering states */ - struct state *states; /* state-chain header */ - struct state *slast; /* tail of the chain */ - struct state *free; /* free list */ - struct colormap *cm; /* the color map */ - color bos[2]; /* colors, if any, assigned to BOS and BOL */ - color eos[2]; /* colors, if any, assigned to EOS and EOL */ - struct vars *v; /* simplifies compile error reporting */ - struct nfa *parent; /* parent NFA, if any */ +struct nfa { + struct state *pre; /* pre-initial state */ + struct state *init; /* initial state */ + struct state *final; /* final state */ + struct state *post; /* post-final state */ + int nstates; /* for numbering states */ + struct state *states; /* state-chain header */ + struct state *slast; /* tail of the chain */ + struct state *free; /* free list */ + struct colormap *cm; /* the color map */ + color bos[2]; /* colors, if any, assigned to BOS and BOL */ + color eos[2]; /* colors, if any, assigned to EOS and EOL */ + struct vars *v; /* simplifies compile error reporting */ + struct nfa *parent; /* parent NFA, if any */ }; @@ -329,64 +331,58 @@ struct nfa /* * definitions for compacted NFA */ -struct carc -{ - color co; /* COLORLESS is list terminator */ - int to; /* state number */ +struct carc { + color co; /* COLORLESS is list terminator */ + int to; /* state number */ }; -struct cnfa -{ - int nstates; /* number of states */ - int ncolors; /* number of colors */ - int flags; -#define HASLACONS 01 /* uses lookahead constraints */ - int pre; /* setup state number */ - int post; /* teardown state number */ - color bos[2]; /* colors, if any, assigned to BOS and BOL */ - color eos[2]; /* colors, if any, assigned to EOS and EOL */ - struct carc **states; /* vector of pointers to outarc lists */ - struct carc *arcs; /* the area for the lists */ +struct cnfa { + int nstates; /* number of states */ + int ncolors; /* number of colors */ + int flags; +# define HASLACONS 01 /* uses lookahead constraints */ + int pre; /* setup state number */ + int post; /* teardown state number */ + color bos[2]; /* colors, if any, assigned to BOS and BOL */ + color eos[2]; /* colors, if any, assigned to EOS and EOL */ + struct carc **states; /* vector of pointers to outarc lists */ + struct carc *arcs; /* the area for the lists */ }; - -#define ZAPCNFA(cnfa) ((cnfa).nstates = 0) -#define NULLCNFA(cnfa) ((cnfa).nstates == 0) +#define ZAPCNFA(cnfa) ((cnfa).nstates = 0) +#define NULLCNFA(cnfa) ((cnfa).nstates == 0) /* * subexpression tree */ -struct subre -{ - char op; /* '|', '.' (concat), 'b' (backref), '(', - * '=' */ - char flags; -#define LONGER 01 /* prefers longer match */ -#define SHORTER 02 /* prefers shorter match */ -#define MIXED 04 /* mixed preference below */ -#define CAP 010 /* capturing parens below */ -#define BACKR 020 /* back reference below */ -#define INUSE 0100 /* in use in final tree */ -#define LOCAL 03 /* bits which may not propagate up */ -#define LMIX(f) ((f)<<2) /* LONGER -> MIXED */ -#define SMIX(f) ((f)<<1) /* SHORTER -> MIXED */ -#define UP(f) (((f)&~LOCAL) | (LMIX(f) & SMIX(f) & MIXED)) -#define MESSY(f) ((f)&(MIXED|CAP|BACKR)) -#define PREF(f) ((f)&LOCAL) -#define PREF2(f1, f2) ((PREF(f1) != 0) ? PREF(f1) : PREF(f2)) -#define COMBINE(f1, f2) (UP((f1)|(f2)) | PREF2(f1, f2)) - short retry; /* index into retry memory */ - int subno; /* subexpression number (for 'b' and '(') */ - short min; /* min repetitions, for backref only */ - short max; /* max repetitions, for backref only */ - struct subre *left; /* left child, if any (also freelist - * chain) */ - struct subre *right; /* right child, if any */ - struct state *begin; /* outarcs from here... */ - struct state *end; /* ...ending in inarcs here */ - struct cnfa cnfa; /* compacted NFA, if any */ - struct subre *chain; /* for bookkeeping and error cleanup */ +struct subre { + char op; /* '|', '.' (concat), 'b' (backref), '(', '=' */ + char flags; +# define LONGER 01 /* prefers longer match */ +# define SHORTER 02 /* prefers shorter match */ +# define MIXED 04 /* mixed preference below */ +# define CAP 010 /* capturing parens below */ +# define BACKR 020 /* back reference below */ +# define INUSE 0100 /* in use in final tree */ +# define LOCAL 03 /* bits which may not propagate up */ +# define LMIX(f) ((f)<<2) /* LONGER -> MIXED */ +# define SMIX(f) ((f)<<1) /* SHORTER -> MIXED */ +# define UP(f) (((f)&~LOCAL) | (LMIX(f) & SMIX(f) & MIXED)) +# define MESSY(f) ((f)&(MIXED|CAP|BACKR)) +# define PREF(f) ((f)&LOCAL) +# define PREF2(f1, f2) ((PREF(f1) != 0) ? PREF(f1) : PREF(f2)) +# define COMBINE(f1, f2) (UP((f1)|(f2)) | PREF2(f1, f2)) + short retry; /* index into retry memory */ + int subno; /* subexpression number (for 'b' and '(') */ + short min; /* min repetitions, for backref only */ + short max; /* max repetitions, for backref only */ + struct subre *left; /* left child, if any (also freelist chain) */ + struct subre *right; /* right child, if any */ + struct state *begin; /* outarcs from here... */ + struct state *end; /* ...ending in inarcs here */ + struct cnfa cnfa; /* compacted NFA, if any */ + struct subre *chain; /* for bookkeeping and error cleanup */ }; @@ -395,9 +391,8 @@ struct subre * table of function pointers for generic manipulation functions * A regex_t's re_fns points to one of these. */ -struct fns -{ - void FUNCPTR(free, (regex_t *)); +struct fns { + VOID FUNCPTR(free, (regex_t *)); }; @@ -405,18 +400,17 @@ struct fns /* * the insides of a regex_t, hidden behind a void * */ -struct guts -{ - int magic; -#define GUTSMAGIC 0xfed9 - int cflags; /* copy of compile flags */ - long info; /* copy of re_info */ - size_t nsub; /* copy of re_nsub */ +struct guts { + int magic; +# define GUTSMAGIC 0xfed9 + int cflags; /* copy of compile flags */ + long info; /* copy of re_info */ + size_t nsub; /* copy of re_nsub */ struct subre *tree; - struct cnfa search; /* for fast preliminary search */ - int ntree; + struct cnfa search; /* for fast preliminary search */ + int ntree; struct colormap cmap; - int FUNCPTR(compare, (const chr *, const chr *, size_t)); - struct subre *lacons; /* lookahead-constraint vector */ - int nlacons; /* size of lacons */ + int FUNCPTR(compare, (CONST chr *, CONST chr *, size_t)); + struct subre *lacons; /* lookahead-constraint vector */ + int nlacons; /* size of lacons */ };