diff options
Diffstat (limited to 'generic/regex.h')
| -rw-r--r-- | generic/regex.h | 143 |
1 files changed, 61 insertions, 82 deletions
diff --git a/generic/regex.h b/generic/regex.h index bb1080a..dfd11ec 100644 --- a/generic/regex.h +++ b/generic/regex.h @@ -4,20 +4,20 @@ * regular expressions * * 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. - * + * Corporation, none of whom are responsible for the results. The author + * 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. - * + * 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 @@ -30,38 +30,35 @@ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * - * * Prototypes etc. marked with "^" within comments get gathered up (and - * possibly edited) by the regfwd program and inserted near the bottom of - * this file. + * possibly edited) by the regfwd program and inserted near the bottom of this + * file. * - * We offer the option of declaring one wide-character version of the - * RE functions as well as the char versions. To do that, define - * __REG_WIDE_T to the type of wide characters (unfortunately, there - * is no consensus that wchar_t is suitable) and __REG_WIDE_COMPILE and - * __REG_WIDE_EXEC to the names to be used for the compile and execute - * functions (suggestion: re_Xcomp and re_Xexec, where X is a letter - * suggestive of the wide type, e.g. re_ucomp and re_uexec for Unicode). - * For cranky old compilers, it may be necessary to do something like: + * We offer the option of declaring one wide-character version of the RE + * functions as well as the char versions. To do that, define __REG_WIDE_T to + * the type of wide characters (unfortunately, there is no consensus that + * wchar_t is suitable) and __REG_WIDE_COMPILE and __REG_WIDE_EXEC to the + * names to be used for the compile and execute functions (suggestion: + * re_Xcomp and re_Xexec, where X is a letter suggestive of the wide type, + * e.g. re_ucomp and re_uexec for Unicode). For cranky old compilers, it may + * be necessary to do something like: * #define __REG_WIDE_COMPILE(a,b,c,d) re_Xcomp(a,b,c,d) * #define __REG_WIDE_EXEC(a,b,c,d,e,f,g) re_Xexec(a,b,c,d,e,f,g) * rather than just #defining the names as parameterless macros. * * For some specialized purposes, it may be desirable to suppress the - * declarations of the "front end" functions, regcomp() and regexec(), - * or of the char versions of the compile and execute functions. To - * suppress the front-end functions, define __REG_NOFRONT. To suppress - * the char versions, define __REG_NOCHAR. + * declarations of the "front end" functions, regcomp() and regexec(), or of + * the char versions of the compile and execute functions. To suppress the + * front-end functions, define __REG_NOFRONT. To suppress the char versions, + * define __REG_NOCHAR. * * The right place to do those defines (and some others you may want, see - * below) would be <sys/types.h>. If you don't have control of that file, - * the right place to add your own defines to this file is marked below. - * This is normally done automatically, by the makefile and regmkhdr, based - * on the contents of regcustom.h. + * below) would be <sys/types.h>. If you don't have control of that file, the + * right place to add your own defines to this file is marked below. This is + * normally done automatically, by the makefile and regmkhdr, based on the + * contents of regcustom.h. */ - - /* * voodoo for C++ */ @@ -69,18 +66,15 @@ extern "C" { #endif - - /* * Add your own defines, if needed, here. */ - - /* - * Location where a chunk of regcustom.h is automatically spliced into - * this file (working from its prototype, regproto.h). + * Location where a chunk of regcustom.h is automatically spliced into this + * file (working from its prototype, regproto.h). */ + /* --- begin --- */ /* ensure certain things don't sneak in from system headers */ #ifdef __REG_WIDE_T @@ -121,15 +115,14 @@ extern "C" { #define regerror TclReError /* --- end --- */ - /* * interface types etc. */ /* - * regoff_t has to be large enough to hold either off_t or ssize_t, - * and must be signed; it's only a guess that long is suitable, so we - * offer <sys/types.h> an override. + * regoff_t has to be large enough to hold either off_t or ssize_t, and must + * be signed; it's only a guess that long is suitable, so we offer + * <sys/types.h> an override. */ #ifdef __REG_REGOFF_T typedef __REG_REGOFF_T regoff_t; @@ -148,8 +141,8 @@ typedef void re_void; #endif /* - * Also for benefit of old compilers, <sys/types.h> can supply a macro - * which expands to a substitute for `const'. + * Also for benefit of old compilers, <sys/types.h> can supply a macro which + * expands to a substitute for `const'. */ #ifndef __REG_CONST #define __REG_CONST const @@ -163,43 +156,41 @@ typedef void re_void; /* the biggie, a compiled RE (or rather, a front end to same) */ typedef struct { - int re_magic; /* magic number */ - size_t re_nsub; /* number of subexpressions */ - long re_info; /* information about RE */ -# define REG_UBACKREF 000001 -# define REG_ULOOKAHEAD 000002 -# define REG_UBOUNDS 000004 -# define REG_UBRACES 000010 -# define REG_UBSALNUM 000020 -# define REG_UPBOTCH 000040 -# define REG_UBBS 000100 -# define REG_UNONPOSIX 000200 -# define REG_UUNSPEC 000400 -# define REG_UUNPORT 001000 -# define REG_ULOCALE 002000 -# define REG_UEMPTYMATCH 004000 -# define REG_UIMPOSSIBLE 010000 -# define REG_USHORTEST 020000 - int re_csize; /* sizeof(character) */ - char *re_endp; /* backward compatibility kludge */ - /* the rest is opaque pointers to hidden innards */ - char *re_guts; /* `char *' is more portable than `void *' */ - char *re_fns; + int re_magic; /* magic number */ + size_t re_nsub; /* number of subexpressions */ + long re_info; /* information about RE */ +#define REG_UBACKREF 000001 +#define REG_ULOOKAHEAD 000002 +#define REG_UBOUNDS 000004 +#define REG_UBRACES 000010 +#define REG_UBSALNUM 000020 +#define REG_UPBOTCH 000040 +#define REG_UBBS 000100 +#define REG_UNONPOSIX 000200 +#define REG_UUNSPEC 000400 +#define REG_UUNPORT 001000 +#define REG_ULOCALE 002000 +#define REG_UEMPTYMATCH 004000 +#define REG_UIMPOSSIBLE 010000 +#define REG_USHORTEST 020000 + int re_csize; /* sizeof(character) */ + char *re_endp; /* backward compatibility kludge */ + /* the rest is opaque pointers to hidden innards */ + char *re_guts; /* `char *' is more portable than `void *' */ + char *re_fns; } regex_t; /* result reporting (may acquire more fields later) */ typedef struct { - regoff_t rm_so; /* start of substring */ - regoff_t rm_eo; /* end of substring */ + regoff_t rm_so; /* start of substring */ + regoff_t rm_eo; /* end of substring */ } regmatch_t; /* supplementary control and reporting */ typedef struct { - regmatch_t rm_extend; /* see REG_EXPECT */ + regmatch_t rm_extend; /* see REG_EXPECT */ } rm_detail_t; - - /* * compilation ^ #ifndef __REG_NOCHAR @@ -231,8 +222,6 @@ typedef struct { #define REG_FAKE 010000 /* none of your business :-) */ #define REG_PROGRESS 020000 /* none of your business :-) */ - - /* * execution ^ #ifndef __REG_NOCHAR @@ -254,23 +243,19 @@ typedef struct { #define REG_MTRACE 0020 /* none of your business */ #define REG_SMALL 0040 /* none of your business */ - - /* * misc generics (may be more functions here eventually) ^ re_void regfree(regex_t *); */ - - /* * error reporting * Be careful if modifying the list of error codes -- the table used by * regerror() is generated automatically from this file! * - * Note that there is no wide-char variant of regerror at this time; what - * kind of character is used for error reports is independent of what kind - * is used in matching. + * Note that there is no wide-char variant of regerror at this time; what kind + * of character is used for error reports is independent of what kind is used + * in matching. * ^ extern size_t regerror(int, __REG_CONST regex_t *, char *, size_t); */ @@ -296,8 +281,6 @@ typedef struct { #define REG_ATOI 101 /* convert error-code name to number */ #define REG_ITOA 102 /* convert error-code number to name */ - - /* * the prototypes, as possibly munched by regfwd */ @@ -327,8 +310,6 @@ extern size_t regerror(int, __REG_CONST regex_t *, char *, size_t); /* automatically gathered by fwd; do not hand-edit */ /* =====^!^===== end forwards =====^!^===== */ - - /* * more C++ voodoo */ @@ -336,6 +317,4 @@ extern size_t regerror(int, __REG_CONST regex_t *, char *, size_t); } #endif - - #endif |