566 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			566 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Definitions for data structures and routines for the regular
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   expression library, version 0.12.
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   Copyright (C) 1985, 1989, 1990, 1991, 1992, 1993, 1995, 1996, 1997,
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   1998, 2000, 2005 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.  Its master source is NOT part of
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   the C library, however.  The master source lives in /gd/gnu/lib.
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						||
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   The GNU C Library is free software; you can redistribute it and/or
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						||
   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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						||
   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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						||
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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						||
   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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						||
   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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   02110-1301 USA.  */
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#ifndef _REGEX_H
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#define _REGEX_H 1
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/* Allow the use in C++ code.  */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* POSIX says that <sys/types.h> must be included (by the caller) before
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   <regex.h>.  */
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#if !defined _POSIX_C_SOURCE && !defined _POSIX_SOURCE && defined VMS
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/* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it
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   should be there.  */
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# include <stddef.h>
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#endif
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/* The following two types have to be signed and unsigned integer type
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   wide enough to hold a value of a pointer.  For most ANSI compilers
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   ptrdiff_t and size_t should be likely OK.  Still size of these two
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   types is 2 for Microsoft C.  Ugh... */
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typedef long int s_reg_t;
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typedef unsigned long int active_reg_t;
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/* The following bits are used to determine the regexp syntax we
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   recognize.  The set/not-set meanings are chosen so that Emacs syntax
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   remains the value 0.  The bits are given in alphabetical order, and
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   the definitions shifted by one from the previous bit; thus, when we
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   add or remove a bit, only one other definition need change.  */
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typedef unsigned long int reg_syntax_t;
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/* If this bit is not set, then \ inside a bracket expression is literal.
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   If set, then such a \ quotes the following character.  */
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#define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1)
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/* If this bit is not set, then + and ? are operators, and \+ and \? are
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     literals.
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   If set, then \+ and \? are operators and + and ? are literals.  */
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#define RE_BK_PLUS_QM (RE_BACKSLASH_ESCAPE_IN_LISTS << 1)
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/* If this bit is set, then character classes are supported.  They are:
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     [:alpha:], [:upper:], [:lower:],  [:digit:], [:alnum:], [:xdigit:],
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     [:space:], [:print:], [:punct:], [:graph:], and [:cntrl:].
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   If not set, then character classes are not supported.  */
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#define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1)
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/* If this bit is set, then ^ and $ are always anchors (outside bracket
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     expressions, of course).
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   If this bit is not set, then it depends:
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        ^  is an anchor if it is at the beginning of a regular
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           expression or after an open-group or an alternation operator;
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        $  is an anchor if it is at the end of a regular expression, or
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           before a close-group or an alternation operator.
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   This bit could be (re)combined with RE_CONTEXT_INDEP_OPS, because
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   POSIX draft 11.2 says that * etc. in leading positions is undefined.
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   We already implemented a previous draft which made those constructs
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   invalid, though, so we haven't changed the code back.  */
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#define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1)
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/* If this bit is set, then special characters are always special
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     regardless of where they are in the pattern.
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   If this bit is not set, then special characters are special only in
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     some contexts; otherwise they are ordinary.  Specifically,
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     * + ? and intervals are only special when not after the beginning,
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     open-group, or alternation operator.  */
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#define RE_CONTEXT_INDEP_OPS (RE_CONTEXT_INDEP_ANCHORS << 1)
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/* If this bit is set, then *, +, ?, and { cannot be first in an re or
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     immediately after an alternation or begin-group operator.  */
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#define RE_CONTEXT_INVALID_OPS (RE_CONTEXT_INDEP_OPS << 1)
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/* If this bit is set, then . matches newline.
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   If not set, then it doesn't.  */
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#define RE_DOT_NEWLINE (RE_CONTEXT_INVALID_OPS << 1)
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/* If this bit is set, then . doesn't match NUL.
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   If not set, then it does.  */
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#define RE_DOT_NOT_NULL (RE_DOT_NEWLINE << 1)
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/* If this bit is set, nonmatching lists [^...] do not match newline.
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   If not set, they do.  */
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#define RE_HAT_LISTS_NOT_NEWLINE (RE_DOT_NOT_NULL << 1)
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/* If this bit is set, either \{...\} or {...} defines an
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     interval, depending on RE_NO_BK_BRACES.
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   If not set, \{, \}, {, and } are literals.  */
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#define RE_INTERVALS (RE_HAT_LISTS_NOT_NEWLINE << 1)
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/* If this bit is set, +, ? and | aren't recognized as operators.
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   If not set, they are.  */
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#define RE_LIMITED_OPS (RE_INTERVALS << 1)
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/* If this bit is set, newline is an alternation operator.
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   If not set, newline is literal.  */
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#define RE_NEWLINE_ALT (RE_LIMITED_OPS << 1)
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/* If this bit is set, then `{...}' defines an interval, and \{ and \}
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     are literals.
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  If not set, then `\{...\}' defines an interval.  */
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#define RE_NO_BK_BRACES (RE_NEWLINE_ALT << 1)
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/* If this bit is set, (...) defines a group, and \( and \) are literals.
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   If not set, \(...\) defines a group, and ( and ) are literals.  */
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#define RE_NO_BK_PARENS (RE_NO_BK_BRACES << 1)
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/* If this bit is set, then \<digit> matches <digit>.
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   If not set, then \<digit> is a back-reference.  */
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#define RE_NO_BK_REFS (RE_NO_BK_PARENS << 1)
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/* If this bit is set, then | is an alternation operator, and \| is literal.
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   If not set, then \| is an alternation operator, and | is literal.  */
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#define RE_NO_BK_VBAR (RE_NO_BK_REFS << 1)
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/* If this bit is set, then an ending range point collating higher
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     than the starting range point, as in [z-a], is invalid.
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   If not set, then when ending range point collates higher than the
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     starting range point, the range is ignored.  */
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#define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1)
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/* If this bit is set, then an unmatched ) is ordinary.
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   If not set, then an unmatched ) is invalid.  */
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#define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1)
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/* If this bit is set, succeed as soon as we match the whole pattern,
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   without further backtracking.  */
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#define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1)
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/* If this bit is set, do not process the GNU regex operators.
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   If not set, then the GNU regex operators are recognized. */
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#define RE_NO_GNU_OPS (RE_NO_POSIX_BACKTRACKING << 1)
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/* If this bit is set, turn on internal regex debugging.
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   If not set, and debugging was on, turn it off.
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   This only works if regex.c is compiled -DDEBUG.
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   We define this bit always, so that all that's needed to turn on
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   debugging is to recompile regex.c; the calling code can always have
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   this bit set, and it won't affect anything in the normal case. */
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#define RE_DEBUG (RE_NO_GNU_OPS << 1)
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/* If this bit is set, a syntactically invalid interval is treated as
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   a string of ordinary characters.  For example, the ERE 'a{1' is
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   treated as 'a\{1'.  */
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#define RE_INVALID_INTERVAL_ORD (RE_DEBUG << 1)
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/* This global variable defines the particular regexp syntax to use (for
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   some interfaces).  When a regexp is compiled, the syntax used is
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   stored in the pattern buffer, so changing this does not affect
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   already-compiled regexps.  */
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extern reg_syntax_t re_syntax_options;
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/* Define combinations of the above bits for the standard possibilities.
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   (The [[[ comments delimit what gets put into the Texinfo file, so
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   don't delete them!)  */
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/* [[[begin syntaxes]]] */
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#define RE_SYNTAX_EMACS 0
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#define RE_SYNTAX_AWK							\
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  (RE_BACKSLASH_ESCAPE_IN_LISTS   | RE_DOT_NOT_NULL			\
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   | RE_NO_BK_PARENS              | RE_NO_BK_REFS			\
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   | RE_NO_BK_VBAR                | RE_NO_EMPTY_RANGES			\
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   | RE_DOT_NEWLINE		  | RE_CONTEXT_INDEP_ANCHORS		\
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   | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS)
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#define RE_SYNTAX_GNU_AWK						\
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  ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG)	\
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   & ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS))
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#define RE_SYNTAX_POSIX_AWK 						\
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  (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS		\
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   | RE_INTERVALS	    | RE_NO_GNU_OPS)
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#define RE_SYNTAX_GREP							\
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  (RE_BK_PLUS_QM              | RE_CHAR_CLASSES				\
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   | RE_HAT_LISTS_NOT_NEWLINE | RE_INTERVALS				\
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   | RE_NEWLINE_ALT)
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#define RE_SYNTAX_EGREP							\
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  (RE_CHAR_CLASSES        | RE_CONTEXT_INDEP_ANCHORS			\
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   | RE_CONTEXT_INDEP_OPS | RE_HAT_LISTS_NOT_NEWLINE			\
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   | RE_NEWLINE_ALT       | RE_NO_BK_PARENS				\
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   | RE_NO_BK_VBAR)
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#define RE_SYNTAX_POSIX_EGREP						\
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  (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES			\
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   | RE_INVALID_INTERVAL_ORD)
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/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff.  */
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#define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC
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#define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC
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/* Syntax bits common to both basic and extended POSIX regex syntax.  */
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#define _RE_SYNTAX_POSIX_COMMON						\
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  (RE_CHAR_CLASSES | RE_DOT_NEWLINE      | RE_DOT_NOT_NULL		\
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   | RE_INTERVALS  | RE_NO_EMPTY_RANGES)
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#define RE_SYNTAX_POSIX_BASIC						\
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  (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM)
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/* Differs from ..._POSIX_BASIC only in that RE_BK_PLUS_QM becomes
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   RE_LIMITED_OPS, i.e., \? \+ \| are not recognized.  Actually, this
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   isn't minimal, since other operators, such as \`, aren't disabled.  */
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#define RE_SYNTAX_POSIX_MINIMAL_BASIC					\
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  (_RE_SYNTAX_POSIX_COMMON | RE_LIMITED_OPS)
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#define RE_SYNTAX_POSIX_EXTENDED					\
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  (_RE_SYNTAX_POSIX_COMMON  | RE_CONTEXT_INDEP_ANCHORS			\
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   | RE_CONTEXT_INDEP_OPS   | RE_NO_BK_BRACES				\
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   | RE_NO_BK_PARENS        | RE_NO_BK_VBAR				\
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   | RE_CONTEXT_INVALID_OPS | RE_UNMATCHED_RIGHT_PAREN_ORD)
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/* Differs from ..._POSIX_EXTENDED in that RE_CONTEXT_INDEP_OPS is
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   removed and RE_NO_BK_REFS is added.  */
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#define RE_SYNTAX_POSIX_MINIMAL_EXTENDED				\
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  (_RE_SYNTAX_POSIX_COMMON  | RE_CONTEXT_INDEP_ANCHORS			\
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						||
   | RE_CONTEXT_INVALID_OPS | RE_NO_BK_BRACES				\
 | 
						||
   | RE_NO_BK_PARENS        | RE_NO_BK_REFS				\
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   | RE_NO_BK_VBAR	    | RE_UNMATCHED_RIGHT_PAREN_ORD)
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/* [[[end syntaxes]]] */
 | 
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 | 
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/* Maximum number of duplicates an interval can allow.  Some systems
 | 
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   (erroneously) define this in other header files, but we want our
 | 
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   value, so remove any previous define.  */
 | 
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#ifdef RE_DUP_MAX
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# undef RE_DUP_MAX
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#endif
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/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows.  */
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						||
#define RE_DUP_MAX (0x7fff)
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						||
 | 
						||
/* POSIX `cflags' bits (i.e., information for `regcomp').  */
 | 
						||
 | 
						||
/* If this bit is set, then use extended regular expression syntax.
 | 
						||
   If not set, then use basic regular expression syntax.  */
 | 
						||
#define REG_EXTENDED 1
 | 
						||
 | 
						||
/* If this bit is set, then ignore case when matching.
 | 
						||
   If not set, then case is significant.  */
 | 
						||
#define REG_ICASE (REG_EXTENDED << 1)
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						||
 | 
						||
/* If this bit is set, then anchors do not match at newline
 | 
						||
     characters in the string.
 | 
						||
   If not set, then anchors do match at newlines.  */
 | 
						||
#define REG_NEWLINE (REG_ICASE << 1)
 | 
						||
 | 
						||
/* If this bit is set, then report only success or fail in regexec.
 | 
						||
   If not set, then returns differ between not matching and errors.  */
 | 
						||
#define REG_NOSUB (REG_NEWLINE << 1)
 | 
						||
 | 
						||
 | 
						||
/* POSIX `eflags' bits (i.e., information for regexec).  */
 | 
						||
 | 
						||
/* If this bit is set, then the beginning-of-line operator doesn't match
 | 
						||
     the beginning of the string (presumably because it's not the
 | 
						||
     beginning of a line).
 | 
						||
   If not set, then the beginning-of-line operator does match the
 | 
						||
     beginning of the string.  */
 | 
						||
#define REG_NOTBOL 1
 | 
						||
 | 
						||
/* Like REG_NOTBOL, except for the end-of-line.  */
 | 
						||
#define REG_NOTEOL (1 << 1)
 | 
						||
 | 
						||
 | 
						||
/* If any error codes are removed, changed, or added, update the
 | 
						||
   `re_error_msg' table in regex.c.  */
 | 
						||
typedef enum
 | 
						||
{
 | 
						||
#ifdef _XOPEN_SOURCE
 | 
						||
  REG_ENOSYS = -1,	/* This will never happen for this implementation.  */
 | 
						||
#endif
 | 
						||
 | 
						||
  REG_NOERROR = 0,	/* Success.  */
 | 
						||
  REG_NOMATCH,		/* Didn't find a match (for regexec).  */
 | 
						||
 | 
						||
  /* POSIX regcomp return error codes.  (In the order listed in the
 | 
						||
     standard.)  */
 | 
						||
  REG_BADPAT,		/* Invalid pattern.  */
 | 
						||
  REG_ECOLLATE,		/* Not implemented.  */
 | 
						||
  REG_ECTYPE,		/* Invalid character class name.  */
 | 
						||
  REG_EESCAPE,		/* Trailing backslash.  */
 | 
						||
  REG_ESUBREG,		/* Invalid back reference.  */
 | 
						||
  REG_EBRACK,		/* Unmatched left bracket.  */
 | 
						||
  REG_EPAREN,		/* Parenthesis imbalance.  */
 | 
						||
  REG_EBRACE,		/* Unmatched \{.  */
 | 
						||
  REG_BADBR,		/* Invalid contents of \{\}.  */
 | 
						||
  REG_ERANGE,		/* Invalid range end.  */
 | 
						||
  REG_ESPACE,		/* Ran out of memory.  */
 | 
						||
  REG_BADRPT,		/* No preceding re for repetition op.  */
 | 
						||
 | 
						||
  /* Error codes we've added.  */
 | 
						||
  REG_EEND,		/* Premature end.  */
 | 
						||
  REG_ESIZE,		/* Compiled pattern bigger than 2^16 bytes.  */
 | 
						||
  REG_ERPAREN		/* Unmatched ) or \); not returned from regcomp.  */
 | 
						||
} reg_errcode_t;
 | 
						||
 | 
						||
/* This data structure represents a compiled pattern.  Before calling
 | 
						||
   the pattern compiler, the fields `buffer', `allocated', `fastmap',
 | 
						||
   `translate', and `no_sub' can be set.  After the pattern has been
 | 
						||
   compiled, the `re_nsub' field is available.  All other fields are
 | 
						||
   private to the regex routines.  */
 | 
						||
 | 
						||
#ifndef RE_TRANSLATE_TYPE
 | 
						||
# define RE_TRANSLATE_TYPE char *
 | 
						||
#endif
 | 
						||
 | 
						||
struct re_pattern_buffer
 | 
						||
{
 | 
						||
/* [[[begin pattern_buffer]]] */
 | 
						||
	/* Space that holds the compiled pattern.  It is declared as
 | 
						||
          `unsigned char *' because its elements are
 | 
						||
           sometimes used as array indexes.  */
 | 
						||
  unsigned char *buffer;
 | 
						||
 | 
						||
	/* Number of bytes to which `buffer' points.  */
 | 
						||
  unsigned long int allocated;
 | 
						||
 | 
						||
	/* Number of bytes actually used in `buffer'.  */
 | 
						||
  unsigned long int used;
 | 
						||
 | 
						||
        /* Syntax setting with which the pattern was compiled.  */
 | 
						||
  reg_syntax_t syntax;
 | 
						||
 | 
						||
        /* Pointer to a fastmap, if any, otherwise zero.  re_search uses
 | 
						||
           the fastmap, if there is one, to skip over impossible
 | 
						||
           starting points for matches.  */
 | 
						||
  char *fastmap;
 | 
						||
 | 
						||
        /* Either a translate table to apply to all characters before
 | 
						||
           comparing them, or zero for no translation.  The translation
 | 
						||
           is applied to a pattern when it is compiled and to a string
 | 
						||
           when it is matched.  */
 | 
						||
  RE_TRANSLATE_TYPE translate;
 | 
						||
 | 
						||
	/* Number of subexpressions found by the compiler.  */
 | 
						||
  size_t re_nsub;
 | 
						||
 | 
						||
        /* Zero if this pattern cannot match the empty string, one else.
 | 
						||
           Well, in truth it's used only in `re_search_2', to see
 | 
						||
           whether or not we should use the fastmap, so we don't set
 | 
						||
           this absolutely perfectly; see `re_compile_fastmap' (the
 | 
						||
           `duplicate' case).  */
 | 
						||
  unsigned can_be_null : 1;
 | 
						||
 | 
						||
        /* If REGS_UNALLOCATED, allocate space in the `regs' structure
 | 
						||
             for `max (RE_NREGS, re_nsub + 1)' groups.
 | 
						||
           If REGS_REALLOCATE, reallocate space if necessary.
 | 
						||
           If REGS_FIXED, use what's there.  */
 | 
						||
#define REGS_UNALLOCATED 0
 | 
						||
#define REGS_REALLOCATE 1
 | 
						||
#define REGS_FIXED 2
 | 
						||
  unsigned regs_allocated : 2;
 | 
						||
 | 
						||
        /* Set to zero when `regex_compile' compiles a pattern; set to one
 | 
						||
           by `re_compile_fastmap' if it updates the fastmap.  */
 | 
						||
  unsigned fastmap_accurate : 1;
 | 
						||
 | 
						||
        /* If set, `re_match_2' does not return information about
 | 
						||
           subexpressions.  */
 | 
						||
  unsigned no_sub : 1;
 | 
						||
 | 
						||
        /* If set, a beginning-of-line anchor doesn't match at the
 | 
						||
           beginning of the string.  */
 | 
						||
  unsigned not_bol : 1;
 | 
						||
 | 
						||
        /* Similarly for an end-of-line anchor.  */
 | 
						||
  unsigned not_eol : 1;
 | 
						||
 | 
						||
        /* If true, an anchor at a newline matches.  */
 | 
						||
  unsigned newline_anchor : 1;
 | 
						||
 | 
						||
/* [[[end pattern_buffer]]] */
 | 
						||
};
 | 
						||
 | 
						||
typedef struct re_pattern_buffer regex_t;
 | 
						||
 | 
						||
/* Type for byte offsets within the string.  POSIX mandates this.  */
 | 
						||
typedef int regoff_t;
 | 
						||
 | 
						||
 | 
						||
/* This is the structure we store register match data in.  See
 | 
						||
   regex.texinfo for a full description of what registers match.  */
 | 
						||
struct re_registers
 | 
						||
{
 | 
						||
  unsigned num_regs;
 | 
						||
  regoff_t *start;
 | 
						||
  regoff_t *end;
 | 
						||
};
 | 
						||
 | 
						||
 | 
						||
/* If `regs_allocated' is REGS_UNALLOCATED in the pattern buffer,
 | 
						||
   `re_match_2' returns information about at least this many registers
 | 
						||
   the first time a `regs' structure is passed.  */
 | 
						||
#ifndef RE_NREGS
 | 
						||
# define RE_NREGS 30
 | 
						||
#endif
 | 
						||
 | 
						||
 | 
						||
/* POSIX specification for registers.  Aside from the different names than
 | 
						||
   `re_registers', POSIX uses an array of structures, instead of a
 | 
						||
   structure of arrays.  */
 | 
						||
typedef struct
 | 
						||
{
 | 
						||
  regoff_t rm_so;  /* Byte offset from string's start to substring's start.  */
 | 
						||
  regoff_t rm_eo;  /* Byte offset from string's start to substring's end.  */
 | 
						||
} regmatch_t;
 | 
						||
 | 
						||
/* Declarations for routines.  */
 | 
						||
 | 
						||
/* To avoid duplicating every routine declaration -- once with a
 | 
						||
   prototype (if we are ANSI), and once without (if we aren't) -- we
 | 
						||
   use the following macro to declare argument types.  This
 | 
						||
   unfortunately clutters up the declarations a bit, but I think it's
 | 
						||
   worth it.  */
 | 
						||
 | 
						||
/* Sets the current default syntax to SYNTAX, and return the old syntax.
 | 
						||
   You can also simply assign to the `re_syntax_options' variable.  */
 | 
						||
extern reg_syntax_t re_set_syntax (reg_syntax_t syntax);
 | 
						||
 | 
						||
/* Compile the regular expression PATTERN, with length LENGTH
 | 
						||
   and syntax given by the global `re_syntax_options', into the buffer
 | 
						||
   BUFFER.  Return NULL if successful, and an error string if not.  */
 | 
						||
extern const char *re_compile_pattern (const char *pattern, size_t length,
 | 
						||
                                       struct re_pattern_buffer *buffer);
 | 
						||
 | 
						||
 | 
						||
/* Compile a fastmap for the compiled pattern in BUFFER; used to
 | 
						||
   accelerate searches.  Return 0 if successful and -2 if was an
 | 
						||
   internal error.  */
 | 
						||
extern int re_compile_fastmap (struct re_pattern_buffer *buffer);
 | 
						||
 | 
						||
 | 
						||
/* Search in the string STRING (with length LENGTH) for the pattern
 | 
						||
   compiled into BUFFER.  Start searching at position START, for RANGE
 | 
						||
   characters.  Return the starting position of the match, -1 for no
 | 
						||
   match, or -2 for an internal error.  Also return register
 | 
						||
   information in REGS (if REGS and BUFFER->no_sub are nonzero).  */
 | 
						||
extern int re_search (struct re_pattern_buffer *buffer, const char *string,
 | 
						||
                      int length, int start, int range,
 | 
						||
                      struct re_registers *regs);
 | 
						||
 | 
						||
 | 
						||
/* Like `re_search', but search in the concatenation of STRING1 and
 | 
						||
   STRING2.  Also, stop searching at index START + STOP.  */
 | 
						||
extern int re_search_2 (struct re_pattern_buffer *buffer, const char *string1,
 | 
						||
                        int length1, const char *string2, int length2,
 | 
						||
                        int start, int range, struct re_registers *regs,
 | 
						||
                        int stop);
 | 
						||
 | 
						||
 | 
						||
/* Like `re_search', but return how many characters in STRING the regexp
 | 
						||
   in BUFFER matched, starting at position START.  */
 | 
						||
extern int re_match (struct re_pattern_buffer *buffer, const char *string,
 | 
						||
                     int length, int start, struct re_registers *regs);
 | 
						||
 | 
						||
 | 
						||
/* Relates to `re_match' as `re_search_2' relates to `re_search'.  */
 | 
						||
extern int re_match_2 (struct re_pattern_buffer *buffer, const char *string1,
 | 
						||
                       int length1, const char *string2, int length2,
 | 
						||
                       int start, struct re_registers *regs, int stop);
 | 
						||
 | 
						||
 | 
						||
/* Set REGS to hold NUM_REGS registers, storing them in STARTS and
 | 
						||
   ENDS.  Subsequent matches using BUFFER and REGS will use this memory
 | 
						||
   for recording register information.  STARTS and ENDS must be
 | 
						||
   allocated with malloc, and must each be at least `NUM_REGS * sizeof
 | 
						||
   (regoff_t)' bytes long.
 | 
						||
 | 
						||
   If NUM_REGS == 0, then subsequent matches should allocate their own
 | 
						||
   register data.
 | 
						||
 | 
						||
   Unless this function is called, the first search or match using
 | 
						||
   PATTERN_BUFFER will allocate its own register data, without
 | 
						||
   freeing the old data.  */
 | 
						||
extern void re_set_registers (struct re_pattern_buffer *buffer,
 | 
						||
                              struct re_registers *regs,
 | 
						||
                              unsigned num_regs, regoff_t *starts,
 | 
						||
                              regoff_t *ends);
 | 
						||
 | 
						||
#if defined _REGEX_RE_COMP || defined _LIBC
 | 
						||
# ifndef _CRAY
 | 
						||
/* 4.2 bsd compatibility.  */
 | 
						||
extern char *re_comp (const char *);
 | 
						||
extern int re_exec (const char *);
 | 
						||
# endif
 | 
						||
#endif
 | 
						||
 | 
						||
/* GCC 2.95 and later have "__restrict"; C99 compilers have
 | 
						||
   "restrict", and "configure" may have defined "restrict".  */
 | 
						||
#ifndef __restrict
 | 
						||
# if ! (2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__))
 | 
						||
#  if defined restrict || 199901L <= __STDC_VERSION__
 | 
						||
#   define __restrict restrict
 | 
						||
#  else
 | 
						||
#   define __restrict
 | 
						||
#  endif
 | 
						||
# endif
 | 
						||
#endif
 | 
						||
 | 
						||
/* GCC 3.1 and later support declaring arrays as non-overlapping
 | 
						||
   using the syntax array_name[restrict]  */
 | 
						||
#ifndef __restrict_arr
 | 
						||
# if ! (3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) || defined (__GNUG__)
 | 
						||
#  define __restrict_arr
 | 
						||
# else
 | 
						||
#  define __restrict_arr __restrict
 | 
						||
# endif
 | 
						||
#endif
 | 
						||
 | 
						||
/* POSIX compatibility.  */
 | 
						||
extern int regcomp (regex_t *__restrict __preg,
 | 
						||
                    const char *__restrict __pattern,
 | 
						||
                    int __cflags);
 | 
						||
 | 
						||
#if (__GNUC__)
 | 
						||
__extension__
 | 
						||
#endif
 | 
						||
extern int regexec (const regex_t *__restrict __preg,
 | 
						||
                    const char *__restrict __string, size_t __nmatch,
 | 
						||
                    regmatch_t __pmatch[__restrict_arr],
 | 
						||
                    int __eflags);
 | 
						||
 | 
						||
extern size_t regerror (int __errcode, const regex_t *__preg,
 | 
						||
                        char *__errbuf, size_t __errbuf_size);
 | 
						||
 | 
						||
extern void regfree (regex_t *__preg);
 | 
						||
 | 
						||
 | 
						||
#ifdef __cplusplus
 | 
						||
}
 | 
						||
#endif	/* C++ */
 | 
						||
 | 
						||
#endif /* regex.h */
 | 
						||
 | 
						||
/*
 | 
						||
Local variables:
 | 
						||
make-backup-files: t
 | 
						||
version-control: t
 | 
						||
trim-versions-without-asking: nil
 | 
						||
End:
 | 
						||
*/
 |