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/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tcl_base/regex.h,v 1.1.1.1 2001/06/13 04:32:16 dtashley Exp $ */
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#ifndef _REGEX_H_
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#define _REGEX_H_ /* never again */
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/*
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* regular expressions
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*
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* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
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*
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* Development of this software was funded, in part, by Cray Research Inc.,
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* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
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* Corporation, none of whom are responsible for the results. The author
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* thanks all of them.
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*
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* Redistribution and use in source and binary forms -- with or without
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* modification -- are permitted for any purpose, provided that
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* redistributions in source form retain this entire copyright notice and
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* indicate the origin and nature of any modifications.
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*
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* I'd appreciate being given credit for this package in the documentation
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* of software which uses it, but that is not a requirement.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*
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*
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* Prototypes etc. marked with "^" within comments get gathered up (and
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* possibly edited) by the regfwd program and inserted near the bottom of
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* this file.
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*
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* We offer the option of declaring one wide-character version of the
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* RE functions as well as the char versions. To do that, define
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* __REG_WIDE_T to the type of wide characters (unfortunately, there
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* is no consensus that wchar_t is suitable) and __REG_WIDE_COMPILE and
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* __REG_WIDE_EXEC to the names to be used for the compile and execute
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* functions (suggestion: re_Xcomp and re_Xexec, where X is a letter
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* suggestive of the wide type, e.g. re_ucomp and re_uexec for Unicode).
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* For cranky old compilers, it may be necessary to do something like:
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* #define __REG_WIDE_COMPILE(a,b,c,d) re_Xcomp(a,b,c,d)
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* #define __REG_WIDE_EXEC(a,b,c,d,e,f,g) re_Xexec(a,b,c,d,e,f,g)
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* rather than just #defining the names as parameterless macros.
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*
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* For some specialized purposes, it may be desirable to suppress the
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* declarations of the "front end" functions, regcomp() and regexec(),
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* or of the char versions of the compile and execute functions. To
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* suppress the front-end functions, define __REG_NOFRONT. To suppress
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* the char versions, define __REG_NOCHAR.
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*
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* The right place to do those defines (and some others you may want, see
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* below) would be <sys/types.h>. If you don't have control of that file,
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* the right place to add your own defines to this file is marked below.
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* This is normally done automatically, by the makefile and regmkhdr, based
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* on the contents of regcustom.h.
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*/
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/*
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* voodoo for C++
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Add your own defines, if needed, here.
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*/
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/*
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* Location where a chunk of regcustom.h is automatically spliced into
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* this file (working from its prototype, regproto.h).
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*/
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/* --- begin --- */
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/* ensure certain things don't sneak in from system headers */
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#ifdef __REG_WIDE_T
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#undef __REG_WIDE_T
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#endif
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#ifdef __REG_WIDE_COMPILE
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#undef __REG_WIDE_COMPILE
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#endif
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#ifdef __REG_WIDE_EXEC
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#undef __REG_WIDE_EXEC
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#endif
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#ifdef __REG_REGOFF_T
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#undef __REG_REGOFF_T
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#endif
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#ifdef __REG_VOID_T
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#undef __REG_VOID_T
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#endif
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#ifdef __REG_CONST
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#undef __REG_CONST
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#endif
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#ifdef __REG_NOFRONT
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#undef __REG_NOFRONT
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#endif
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#ifdef __REG_NOCHAR
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#undef __REG_NOCHAR
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#endif
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/* interface types */
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#define __REG_WIDE_T Tcl_UniChar
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#define __REG_REGOFF_T long /* not really right, but good enough... */
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#define __REG_VOID_T VOID
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#define __REG_CONST CONST
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/* names and declarations */
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#define __REG_WIDE_COMPILE TclReComp
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#define __REG_WIDE_EXEC TclReExec
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#define __REG_NOFRONT /* don't want regcomp() and regexec() */
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#define __REG_NOCHAR /* or the char versions */
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#define regfree TclReFree
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#define regerror TclReError
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/* --- end --- */
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/*
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* interface types etc.
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*/
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/*
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* regoff_t has to be large enough to hold either off_t or ssize_t,
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* and must be signed; it's only a guess that long is suitable, so we
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* offer <sys/types.h> an override.
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*/
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#ifdef __REG_REGOFF_T
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typedef __REG_REGOFF_T regoff_t;
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#else
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typedef long regoff_t;
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#endif
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/*
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* For benefit of old compilers, we offer <sys/types.h> the option of
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* overriding the `void' type used to declare nonexistent return types.
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*/
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#ifdef __REG_VOID_T
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typedef __REG_VOID_T re_void;
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#else
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typedef void re_void;
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#endif
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/*
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* Also for benefit of old compilers, <sys/types.h> can supply a macro
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* which expands to a substitute for `const'.
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*/
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#ifndef __REG_CONST
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#define __REG_CONST const
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#endif
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/*
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* other interface types
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*/
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/* the biggie, a compiled RE (or rather, a front end to same) */
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typedef struct {
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int re_magic; /* magic number */
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size_t re_nsub; /* number of subexpressions */
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long re_info; /* information about RE */
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# define REG_UBACKREF 000001
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# define REG_ULOOKAHEAD 000002
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# define REG_UBOUNDS 000004
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# define REG_UBRACES 000010
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# define REG_UBSALNUM 000020
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# define REG_UPBOTCH 000040
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# define REG_UBBS 000100
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# define REG_UNONPOSIX 000200
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# define REG_UUNSPEC 000400
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# define REG_UUNPORT 001000
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# define REG_ULOCALE 002000
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# define REG_UEMPTYMATCH 004000
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# define REG_UIMPOSSIBLE 010000
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# define REG_USHORTEST 020000
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int re_csize; /* sizeof(character) */
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char *re_endp; /* backward compatibility kludge */
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/* the rest is opaque pointers to hidden innards */
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char *re_guts; /* `char *' is more portable than `void *' */
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char *re_fns;
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} regex_t;
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/* result reporting (may acquire more fields later) */
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typedef struct {
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regoff_t rm_so; /* start of substring */
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regoff_t rm_eo; /* end of substring */
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} regmatch_t;
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/* supplementary control and reporting */
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typedef struct {
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regmatch_t rm_extend; /* see REG_EXPECT */
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} rm_detail_t;
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/*
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* compilation
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^ #ifndef __REG_NOCHAR
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^ int re_comp(regex_t *, __REG_CONST char *, size_t, int);
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^ #endif
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^ #ifndef __REG_NOFRONT
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^ int regcomp(regex_t *, __REG_CONST char *, int);
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^ #endif
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^ #ifdef __REG_WIDE_T
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^ int __REG_WIDE_COMPILE(regex_t *, __REG_CONST __REG_WIDE_T *, size_t, int);
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^ #endif
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*/
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#define REG_BASIC 000000 /* BREs (convenience) */
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#define REG_EXTENDED 000001 /* EREs */
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#define REG_ADVF 000002 /* advanced features in EREs */
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#define REG_ADVANCED 000003 /* AREs (which are also EREs) */
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#define REG_QUOTE 000004 /* no special characters, none */
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#define REG_NOSPEC REG_QUOTE /* historical synonym */
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#define REG_ICASE 000010 /* ignore case */
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#define REG_NOSUB 000020 /* don't care about subexpressions */
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#define REG_EXPANDED 000040 /* expanded format, white space & comments */
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#define REG_NLSTOP 000100 /* \n doesn't match . or [^ ] */
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#define REG_NLANCH 000200 /* ^ matches after \n, $ before */
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#define REG_NEWLINE 000300 /* newlines are line terminators */
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#define REG_PEND 000400 /* ugh -- backward-compatibility hack */
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#define REG_EXPECT 001000 /* report details on partial/limited matches */
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#define REG_BOSONLY 002000 /* temporary kludge for BOS-only matches */
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#define REG_DUMP 004000 /* none of your business :-) */
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#define REG_FAKE 010000 /* none of your business :-) */
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#define REG_PROGRESS 020000 /* none of your business :-) */
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/*
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* execution
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^ #ifndef __REG_NOCHAR
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^ int re_exec(regex_t *, __REG_CONST char *, size_t,
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^ rm_detail_t *, size_t, regmatch_t [], int);
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^ #endif
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^ #ifndef __REG_NOFRONT
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^ int regexec(regex_t *, __REG_CONST char *, size_t, regmatch_t [], int);
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^ #endif
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^ #ifdef __REG_WIDE_T
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^ int __REG_WIDE_EXEC(regex_t *, __REG_CONST __REG_WIDE_T *, size_t,
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^ rm_detail_t *, size_t, regmatch_t [], int);
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^ #endif
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*/
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#define REG_NOTBOL 0001 /* BOS is not BOL */
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#define REG_NOTEOL 0002 /* EOS is not EOL */
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#define REG_STARTEND 0004 /* backward compatibility kludge */
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#define REG_FTRACE 0010 /* none of your business */
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#define REG_MTRACE 0020 /* none of your business */
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#define REG_SMALL 0040 /* none of your business */
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/*
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* misc generics (may be more functions here eventually)
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^ re_void regfree(regex_t *);
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*/
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/*
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* error reporting
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* Be careful if modifying the list of error codes -- the table used by
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* regerror() is generated automatically from this file!
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*
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* Note that there is no wide-char variant of regerror at this time; what
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* kind of character is used for error reports is independent of what kind
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* is used in matching.
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*
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^ extern size_t regerror(int, __REG_CONST regex_t *, char *, size_t);
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*/
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#define REG_OKAY 0 /* no errors detected */
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#define REG_NOMATCH 1 /* failed to match */
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#define REG_BADPAT 2 /* invalid regexp */
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#define REG_ECOLLATE 3 /* invalid collating element */
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#define REG_ECTYPE 4 /* invalid character class */
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#define REG_EESCAPE 5 /* invalid escape \ sequence */
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#define REG_ESUBREG 6 /* invalid backreference number */
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#define REG_EBRACK 7 /* brackets [] not balanced */
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#define REG_EPAREN 8 /* parentheses () not balanced */
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#define REG_EBRACE 9 /* braces {} not balanced */
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#define REG_BADBR 10 /* invalid repetition count(s) */
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#define REG_ERANGE 11 /* invalid character range */
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#define REG_ESPACE 12 /* out of memory */
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#define REG_BADRPT 13 /* quantifier operand invalid */
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#define REG_ASSERT 15 /* "can't happen" -- you found a bug */
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#define REG_INVARG 16 /* invalid argument to regex function */
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#define REG_MIXED 17 /* character widths of regex and string differ */
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#define REG_BADOPT 18 /* invalid embedded option */
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/* two specials for debugging and testing */
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#define REG_ATOI 101 /* convert error-code name to number */
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#define REG_ITOA 102 /* convert error-code number to name */
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/*
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* the prototypes, as possibly munched by regfwd
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*/
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/* =====^!^===== begin forwards =====^!^===== */
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/* automatically gathered by fwd; do not hand-edit */
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/* === regproto.h === */
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#ifndef __REG_NOCHAR
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int re_comp _ANSI_ARGS_((regex_t *, __REG_CONST char *, size_t, int));
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#endif
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#ifndef __REG_NOFRONT
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int regcomp _ANSI_ARGS_((regex_t *, __REG_CONST char *, int));
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#endif
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#ifdef __REG_WIDE_T
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int __REG_WIDE_COMPILE _ANSI_ARGS_((regex_t *, __REG_CONST __REG_WIDE_T *, size_t, int));
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#endif
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#ifndef __REG_NOCHAR
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int re_exec _ANSI_ARGS_((regex_t *, __REG_CONST char *, size_t, rm_detail_t *, size_t, regmatch_t [], int));
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#endif
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#ifndef __REG_NOFRONT
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int regexec _ANSI_ARGS_((regex_t *, __REG_CONST char *, size_t, regmatch_t [], int));
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#endif
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#ifdef __REG_WIDE_T
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int __REG_WIDE_EXEC _ANSI_ARGS_((regex_t *, __REG_CONST __REG_WIDE_T *, size_t, rm_detail_t *, size_t, regmatch_t [], int));
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#endif
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re_void regfree _ANSI_ARGS_((regex_t *));
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extern size_t regerror _ANSI_ARGS_((int, __REG_CONST regex_t *, char *, size_t));
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/* automatically gathered by fwd; do not hand-edit */
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/* =====^!^===== end forwards =====^!^===== */
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/*
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* more C++ voodoo
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* $History: regex.h $
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*
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* ***************** Version 1 *****************
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* User: Dtashley Date: 1/02/01 Time: 12:08a
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* Created in $/IjuScripter, IjuConsole/Source/Tcl Base
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* Initial check-in.
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*/
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/* End of REGEX.H */
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