contrib: remove libgnuregex
This should have been a part of 47d1ad2413
, but it was overlooked. All of
the build bits have been previously removed, and nothing references this
anymore.
This commit is contained in:
parent
e03764d931
commit
8929690a63
File diff suppressed because it is too large
Load Diff
@ -1,76 +0,0 @@
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/* Extended regular expression matching and search library.
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Copyright (C) 2002-2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
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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, see
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<http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* Make sure noone compiles this code with a C++ compiler. */
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#ifdef __cplusplus
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# error "This is C code, use a C compiler"
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#endif
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#ifdef _LIBC
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/* We have to keep the namespace clean. */
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# define regfree(preg) __regfree (preg)
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# define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef)
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# define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags)
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# define regerror(errcode, preg, errbuf, errbuf_size) \
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__regerror(errcode, preg, errbuf, errbuf_size)
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# define re_set_registers(bu, re, nu, st, en) \
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__re_set_registers (bu, re, nu, st, en)
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# define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \
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__re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
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# define re_match(bufp, string, size, pos, regs) \
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__re_match (bufp, string, size, pos, regs)
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# define re_search(bufp, string, size, startpos, range, regs) \
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__re_search (bufp, string, size, startpos, range, regs)
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# define re_compile_pattern(pattern, length, bufp) \
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__re_compile_pattern (pattern, length, bufp)
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# define re_set_syntax(syntax) __re_set_syntax (syntax)
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# define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \
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__re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop)
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# define re_compile_fastmap(bufp) __re_compile_fastmap (bufp)
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# include "../locale/localeinfo.h"
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#endif
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/* On some systems, limits.h sets RE_DUP_MAX to a lower value than
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GNU regex allows. Include it before <regex.h>, which correctly
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#undefs RE_DUP_MAX and sets it to the right value. */
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#include <limits.h>
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/* This header defines the MIN and MAX macros. */
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#include <sys/param.h>
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#include <regex.h>
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#include "regex_internal.h"
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#include "regex_internal.c"
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#include "regcomp.c"
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#include "regexec.c"
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/* Binary backward compatibility. */
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#if _LIBC
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# include <shlib-compat.h>
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# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3)
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link_warning (re_max_failures, "the 're_max_failures' variable is obsolete and will go away.")
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int re_max_failures = 2000;
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# endif
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#endif
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@ -1,582 +0,0 @@
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/* Definitions for data structures and routines for the regular
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expression library.
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Copyright (C) 1985,1989-93,1995-98,2000,2001,2002,2003,2005,2006,2008,2011
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _REGEX_H
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#define _REGEX_H 1
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#include <sys/types.h>
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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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/* 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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#ifdef __USE_GNU
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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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/* If this bit is set, then ignore case when matching.
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If not set, then case is significant. */
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# define RE_ICASE (RE_INVALID_INTERVAL_ORD << 1)
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/* This bit is used internally like RE_CONTEXT_INDEP_ANCHORS but only
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for ^, because it is difficult to scan the regex backwards to find
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whether ^ should be special. */
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# define RE_CARET_ANCHORS_HERE (RE_ICASE << 1)
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/* If this bit is set, then \{ cannot be first in an bre or
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immediately after an alternation or begin-group operator. */
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# define RE_CONTEXT_INVALID_DUP (RE_CARET_ANCHORS_HERE << 1)
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/* If this bit is set, then no_sub will be set to 1 during
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re_compile_pattern. */
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# define RE_NO_SUB (RE_CONTEXT_INVALID_DUP << 1)
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#endif
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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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#ifdef __USE_GNU
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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_CHAR_CLASSES \
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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 \
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| RE_INVALID_INTERVAL_ORD) \
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& ~(RE_DOT_NOT_NULL | RE_CONTEXT_INDEP_OPS \
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| RE_CONTEXT_INVALID_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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| RE_INVALID_INTERVAL_ORD)
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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 | RE_CONTEXT_INVALID_DUP)
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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 \
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| 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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/* 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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#endif
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/* POSIX `cflags' bits (i.e., information for `regcomp'). */
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/* If this bit is set, then use extended regular expression syntax.
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If not set, then use basic regular expression syntax. */
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#define REG_EXTENDED 1
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/* If this bit is set, then ignore case when matching.
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If not set, then case is significant. */
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#define REG_ICASE (REG_EXTENDED << 1)
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/* If this bit is set, then anchors do not match at newline
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characters in the string.
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If not set, then anchors do match at newlines. */
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#define REG_NEWLINE (REG_ICASE << 1)
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/* If this bit is set, then report only success or fail in regexec.
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If not set, then returns differ between not matching and errors. */
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#define REG_NOSUB (REG_NEWLINE << 1)
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/* POSIX `eflags' bits (i.e., information for regexec). */
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/* If this bit is set, then the beginning-of-line operator doesn't match
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the beginning of the string (presumably because it's not the
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beginning of a line).
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If not set, then the beginning-of-line operator does match the
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beginning of the string. */
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#define REG_NOTBOL 1
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/* Like REG_NOTBOL, except for the end-of-line. */
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#define REG_NOTEOL (1 << 1)
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/* Use PMATCH[0] to delimit the start and end of the search in the
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buffer. */
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#define REG_STARTEND (1 << 2)
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/* If any error codes are removed, changed, or added, update the
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`re_error_msg' table in regex.c. */
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typedef enum
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{
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#if defined _XOPEN_SOURCE || defined __USE_XOPEN2K
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REG_ENOSYS = -1, /* This will never happen for this implementation. */
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#endif
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REG_NOERROR = 0, /* Success. */
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REG_NOMATCH, /* Didn't find a match (for regexec). */
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||||
|
||||
/* POSIX regcomp return error codes. (In the order listed in the
|
||||
standard.) */
|
||||
REG_BADPAT, /* Invalid pattern. */
|
||||
REG_ECOLLATE, /* Inalid collating element. */
|
||||
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',
|
||||
and `translate' can be set. After the pattern has been compiled,
|
||||
the fields `re_nsub', `not_bol' and `not_eol' are available. All
|
||||
other fields are private to the regex routines. */
|
||||
|
||||
#ifndef RE_TRANSLATE_TYPE
|
||||
# define __RE_TRANSLATE_TYPE unsigned char *
|
||||
# ifdef __USE_GNU
|
||||
# define RE_TRANSLATE_TYPE __RE_TRANSLATE_TYPE
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef __USE_GNU
|
||||
# define __REPB_PREFIX(name) name
|
||||
#else
|
||||
# define __REPB_PREFIX(name) __##name
|
||||
#endif
|
||||
|
||||
struct re_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 *__REPB_PREFIX(buffer);
|
||||
|
||||
/* Number of bytes to which `buffer' points. */
|
||||
unsigned long int __REPB_PREFIX(allocated);
|
||||
|
||||
/* Number of bytes actually used in `buffer'. */
|
||||
unsigned long int __REPB_PREFIX(used);
|
||||
|
||||
/* Syntax setting with which the pattern was compiled. */
|
||||
reg_syntax_t __REPB_PREFIX(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 *__REPB_PREFIX(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 __REPB_PREFIX(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 __REPB_PREFIX(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. */
|
||||
#ifdef __USE_GNU
|
||||
# define REGS_UNALLOCATED 0
|
||||
# define REGS_REALLOCATE 1
|
||||
# define REGS_FIXED 2
|
||||
#endif
|
||||
unsigned __REPB_PREFIX(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 __REPB_PREFIX(fastmap_accurate) : 1;
|
||||
|
||||
/* If set, `re_match_2' does not return information about
|
||||
subexpressions. */
|
||||
unsigned __REPB_PREFIX(no_sub) : 1;
|
||||
|
||||
/* If set, a beginning-of-line anchor doesn't match at the beginning
|
||||
of the string. */
|
||||
unsigned __REPB_PREFIX(not_bol) : 1;
|
||||
|
||||
/* Similarly for an end-of-line anchor. */
|
||||
unsigned __REPB_PREFIX(not_eol) : 1;
|
||||
|
||||
/* If true, an anchor at a newline matches. */
|
||||
unsigned __REPB_PREFIX(newline_anchor) : 1;
|
||||
};
|
||||
|
||||
typedef struct re_pattern_buffer regex_t;
|
||||
|
||||
/* Type for byte offsets within the string. POSIX mandates this. */
|
||||
typedef int regoff_t;
|
||||
|
||||
|
||||
#ifdef __USE_GNU
|
||||
/* 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
|
||||
#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. */
|
||||
|
||||
#ifdef __USE_GNU
|
||||
/* 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.
|
||||
|
||||
To free the allocated storage, you must call `regfree' on BUFFER.
|
||||
Note that the translate table must either have been initialised by
|
||||
`regcomp', with a malloc'ed value, or set to NULL before calling
|
||||
`regfree'. */
|
||||
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 int __num_regs,
|
||||
regoff_t *__starts, regoff_t *__ends);
|
||||
#endif /* Use GNU */
|
||||
|
||||
#if defined _REGEX_RE_COMP || (defined _LIBC && defined __USE_BSD)
|
||||
# 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 up support the [restrict] syntax. */
|
||||
#ifndef __restrict_arr
|
||||
# if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)) \
|
||||
&& !defined __GNUG__
|
||||
# define __restrict_arr __restrict
|
||||
# else
|
||||
# define __restrict_arr
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* POSIX compatibility. */
|
||||
extern int regcomp (regex_t *__restrict __preg,
|
||||
const char *__restrict __pattern,
|
||||
int __cflags);
|
||||
|
||||
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 *__restrict __preg,
|
||||
char *__restrict __errbuf, size_t __errbuf_size);
|
||||
|
||||
extern void regfree (regex_t *__preg);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* C++ */
|
||||
|
||||
#endif /* regex.h */
|
File diff suppressed because it is too large
Load Diff
@ -1,769 +0,0 @@
|
||||
/* Extended regular expression matching and search library.
|
||||
Copyright (C) 2002-2012 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#ifndef _REGEX_INTERNAL_H
|
||||
#define _REGEX_INTERNAL_H 1
|
||||
|
||||
#include <assert.h>
|
||||
#include <ctype.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#if defined HAVE_LANGINFO_H || defined HAVE_LANGINFO_CODESET || defined _LIBC
|
||||
# include <langinfo.h>
|
||||
#endif
|
||||
#if defined HAVE_LOCALE_H || defined _LIBC
|
||||
# include <locale.h>
|
||||
#endif
|
||||
#if defined HAVE_WCHAR_H || defined _LIBC
|
||||
# include <wchar.h>
|
||||
#endif /* HAVE_WCHAR_H || _LIBC */
|
||||
#if defined HAVE_WCTYPE_H || defined _LIBC
|
||||
# include <wctype.h>
|
||||
#endif /* HAVE_WCTYPE_H || _LIBC */
|
||||
#if defined HAVE_STDBOOL_H || defined _LIBC
|
||||
# include <stdbool.h>
|
||||
#endif /* HAVE_STDBOOL_H || _LIBC */
|
||||
#if defined HAVE_STDINT_H || defined _LIBC
|
||||
# include <stdint.h>
|
||||
#endif /* HAVE_STDINT_H || _LIBC */
|
||||
#if defined _LIBC
|
||||
# include <bits/libc-lock.h>
|
||||
#else
|
||||
# define __libc_lock_define(CLASS,NAME)
|
||||
# define __libc_lock_init(NAME) do { } while (0)
|
||||
# define __libc_lock_lock(NAME) do { } while (0)
|
||||
# define __libc_lock_unlock(NAME) do { } while (0)
|
||||
#endif
|
||||
|
||||
/* In case that the system doesn't have isblank(). */
|
||||
#if !defined _LIBC && !defined HAVE_ISBLANK && !defined isblank
|
||||
# define isblank(ch) ((ch) == ' ' || (ch) == '\t')
|
||||
#endif
|
||||
|
||||
#ifdef _LIBC
|
||||
# ifndef _RE_DEFINE_LOCALE_FUNCTIONS
|
||||
# define _RE_DEFINE_LOCALE_FUNCTIONS 1
|
||||
# include <locale/localeinfo.h>
|
||||
# include <locale/elem-hash.h>
|
||||
# include <locale/coll-lookup.h>
|
||||
# endif
|
||||
#endif
|
||||
|
||||
/* This is for other GNU distributions with internationalized messages. */
|
||||
#if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
|
||||
# include <libintl.h>
|
||||
# ifdef _LIBC
|
||||
# undef gettext
|
||||
# define gettext(msgid) \
|
||||
__dcgettext (_libc_intl_domainname, msgid, LC_MESSAGES)
|
||||
# endif
|
||||
#else
|
||||
# define gettext(msgid) (msgid)
|
||||
#endif
|
||||
|
||||
#ifndef gettext_noop
|
||||
/* This define is so xgettext can find the internationalizable
|
||||
strings. */
|
||||
# define gettext_noop(String) String
|
||||
#endif
|
||||
|
||||
/* For loser systems without the definition. */
|
||||
#ifndef SIZE_MAX
|
||||
# define SIZE_MAX ((size_t) -1)
|
||||
#endif
|
||||
|
||||
#if (defined MB_CUR_MAX && HAVE_LOCALE_H && HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_WCRTOMB && HAVE_MBRTOWC && HAVE_WCSCOLL) || _LIBC
|
||||
# define RE_ENABLE_I18N
|
||||
#endif
|
||||
|
||||
#if __GNUC__ >= 3
|
||||
# define BE(expr, val) __builtin_expect (expr, val)
|
||||
#else
|
||||
# define BE(expr, val) (expr)
|
||||
# define inline
|
||||
#endif
|
||||
|
||||
/* Number of single byte character. */
|
||||
#define SBC_MAX 256
|
||||
|
||||
#define COLL_ELEM_LEN_MAX 8
|
||||
|
||||
/* The character which represents newline. */
|
||||
#define NEWLINE_CHAR '\n'
|
||||
#define WIDE_NEWLINE_CHAR L'\n'
|
||||
|
||||
/* Rename to standard API for using out of glibc. */
|
||||
#ifndef _LIBC
|
||||
# define __wctype wctype
|
||||
# define __iswctype iswctype
|
||||
# define __btowc btowc
|
||||
# define __mbrtowc mbrtowc
|
||||
# define __mempcpy mempcpy
|
||||
# define __wcrtomb wcrtomb
|
||||
# define __regfree regfree
|
||||
# define attribute_hidden
|
||||
#endif /* not _LIBC */
|
||||
|
||||
#ifdef __GNUC__
|
||||
# define __attribute(arg) __attribute__ (arg)
|
||||
#else
|
||||
# define __attribute(arg)
|
||||
#endif
|
||||
|
||||
extern const char __re_error_msgid[] attribute_hidden;
|
||||
extern const size_t __re_error_msgid_idx[] attribute_hidden;
|
||||
|
||||
/* An integer used to represent a set of bits. It must be unsigned,
|
||||
and must be at least as wide as unsigned int. */
|
||||
typedef unsigned long int bitset_word_t;
|
||||
/* All bits set in a bitset_word_t. */
|
||||
#define BITSET_WORD_MAX ULONG_MAX
|
||||
/* Number of bits in a bitset_word_t. */
|
||||
#define BITSET_WORD_BITS (sizeof (bitset_word_t) * CHAR_BIT)
|
||||
/* Number of bitset_word_t in a bit_set. */
|
||||
#define BITSET_WORDS (SBC_MAX / BITSET_WORD_BITS)
|
||||
typedef bitset_word_t bitset_t[BITSET_WORDS];
|
||||
typedef bitset_word_t *re_bitset_ptr_t;
|
||||
typedef const bitset_word_t *re_const_bitset_ptr_t;
|
||||
|
||||
#define bitset_set(set,i) \
|
||||
(set[i / BITSET_WORD_BITS] |= (bitset_word_t) 1 << i % BITSET_WORD_BITS)
|
||||
#define bitset_clear(set,i) \
|
||||
(set[i / BITSET_WORD_BITS] &= ~((bitset_word_t) 1 << i % BITSET_WORD_BITS))
|
||||
#define bitset_contain(set,i) \
|
||||
(set[i / BITSET_WORD_BITS] & ((bitset_word_t) 1 << i % BITSET_WORD_BITS))
|
||||
#define bitset_empty(set) memset (set, '\0', sizeof (bitset_t))
|
||||
#define bitset_set_all(set) memset (set, '\xff', sizeof (bitset_t))
|
||||
#define bitset_copy(dest,src) memcpy (dest, src, sizeof (bitset_t))
|
||||
|
||||
#define PREV_WORD_CONSTRAINT 0x0001
|
||||
#define PREV_NOTWORD_CONSTRAINT 0x0002
|
||||
#define NEXT_WORD_CONSTRAINT 0x0004
|
||||
#define NEXT_NOTWORD_CONSTRAINT 0x0008
|
||||
#define PREV_NEWLINE_CONSTRAINT 0x0010
|
||||
#define NEXT_NEWLINE_CONSTRAINT 0x0020
|
||||
#define PREV_BEGBUF_CONSTRAINT 0x0040
|
||||
#define NEXT_ENDBUF_CONSTRAINT 0x0080
|
||||
#define WORD_DELIM_CONSTRAINT 0x0100
|
||||
#define NOT_WORD_DELIM_CONSTRAINT 0x0200
|
||||
|
||||
typedef enum
|
||||
{
|
||||
INSIDE_WORD = PREV_WORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,
|
||||
WORD_FIRST = PREV_NOTWORD_CONSTRAINT | NEXT_WORD_CONSTRAINT,
|
||||
WORD_LAST = PREV_WORD_CONSTRAINT | NEXT_NOTWORD_CONSTRAINT,
|
||||
INSIDE_NOTWORD = PREV_NOTWORD_CONSTRAINT | NEXT_NOTWORD_CONSTRAINT,
|
||||
LINE_FIRST = PREV_NEWLINE_CONSTRAINT,
|
||||
LINE_LAST = NEXT_NEWLINE_CONSTRAINT,
|
||||
BUF_FIRST = PREV_BEGBUF_CONSTRAINT,
|
||||
BUF_LAST = NEXT_ENDBUF_CONSTRAINT,
|
||||
WORD_DELIM = WORD_DELIM_CONSTRAINT,
|
||||
NOT_WORD_DELIM = NOT_WORD_DELIM_CONSTRAINT
|
||||
} re_context_type;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int alloc;
|
||||
int nelem;
|
||||
int *elems;
|
||||
} re_node_set;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
NON_TYPE = 0,
|
||||
|
||||
/* Node type, These are used by token, node, tree. */
|
||||
CHARACTER = 1,
|
||||
END_OF_RE = 2,
|
||||
SIMPLE_BRACKET = 3,
|
||||
OP_BACK_REF = 4,
|
||||
OP_PERIOD = 5,
|
||||
#ifdef RE_ENABLE_I18N
|
||||
COMPLEX_BRACKET = 6,
|
||||
OP_UTF8_PERIOD = 7,
|
||||
#endif /* RE_ENABLE_I18N */
|
||||
|
||||
/* We define EPSILON_BIT as a macro so that OP_OPEN_SUBEXP is used
|
||||
when the debugger shows values of this enum type. */
|
||||
#define EPSILON_BIT 8
|
||||
OP_OPEN_SUBEXP = EPSILON_BIT | 0,
|
||||
OP_CLOSE_SUBEXP = EPSILON_BIT | 1,
|
||||
OP_ALT = EPSILON_BIT | 2,
|
||||
OP_DUP_ASTERISK = EPSILON_BIT | 3,
|
||||
ANCHOR = EPSILON_BIT | 4,
|
||||
|
||||
/* Tree type, these are used only by tree. */
|
||||
CONCAT = 16,
|
||||
SUBEXP = 17,
|
||||
|
||||
/* Token type, these are used only by token. */
|
||||
OP_DUP_PLUS = 18,
|
||||
OP_DUP_QUESTION,
|
||||
OP_OPEN_BRACKET,
|
||||
OP_CLOSE_BRACKET,
|
||||
OP_CHARSET_RANGE,
|
||||
OP_OPEN_DUP_NUM,
|
||||
OP_CLOSE_DUP_NUM,
|
||||
OP_NON_MATCH_LIST,
|
||||
OP_OPEN_COLL_ELEM,
|
||||
OP_CLOSE_COLL_ELEM,
|
||||
OP_OPEN_EQUIV_CLASS,
|
||||
OP_CLOSE_EQUIV_CLASS,
|
||||
OP_OPEN_CHAR_CLASS,
|
||||
OP_CLOSE_CHAR_CLASS,
|
||||
OP_WORD,
|
||||
OP_NOTWORD,
|
||||
OP_SPACE,
|
||||
OP_NOTSPACE,
|
||||
BACK_SLASH
|
||||
|
||||
} re_token_type_t;
|
||||
|
||||
#ifdef RE_ENABLE_I18N
|
||||
typedef struct
|
||||
{
|
||||
/* Multibyte characters. */
|
||||
wchar_t *mbchars;
|
||||
|
||||
/* Collating symbols. */
|
||||
# ifdef _LIBC
|
||||
int32_t *coll_syms;
|
||||
# endif
|
||||
|
||||
/* Equivalence classes. */
|
||||
# ifdef _LIBC
|
||||
int32_t *equiv_classes;
|
||||
# endif
|
||||
|
||||
/* Range expressions. */
|
||||
# ifdef _LIBC
|
||||
uint32_t *range_starts;
|
||||
uint32_t *range_ends;
|
||||
# else /* not _LIBC */
|
||||
wchar_t *range_starts;
|
||||
wchar_t *range_ends;
|
||||
# endif /* not _LIBC */
|
||||
|
||||
/* Character classes. */
|
||||
wctype_t *char_classes;
|
||||
|
||||
/* If this character set is the non-matching list. */
|
||||
unsigned int non_match : 1;
|
||||
|
||||
/* # of multibyte characters. */
|
||||
int nmbchars;
|
||||
|
||||
/* # of collating symbols. */
|
||||
int ncoll_syms;
|
||||
|
||||
/* # of equivalence classes. */
|
||||
int nequiv_classes;
|
||||
|
||||
/* # of range expressions. */
|
||||
int nranges;
|
||||
|
||||
/* # of character classes. */
|
||||
int nchar_classes;
|
||||
} re_charset_t;
|
||||
#endif /* RE_ENABLE_I18N */
|
||||
|
||||
typedef struct
|
||||
{
|
||||
union
|
||||
{
|
||||
unsigned char c; /* for CHARACTER */
|
||||
re_bitset_ptr_t sbcset; /* for SIMPLE_BRACKET */
|
||||
#ifdef RE_ENABLE_I18N
|
||||
re_charset_t *mbcset; /* for COMPLEX_BRACKET */
|
||||
#endif /* RE_ENABLE_I18N */
|
||||
int idx; /* for BACK_REF */
|
||||
re_context_type ctx_type; /* for ANCHOR */
|
||||
} opr;
|
||||
#if __GNUC__ >= 2
|
||||
re_token_type_t type : 8;
|
||||
#else
|
||||
re_token_type_t type;
|
||||
#endif
|
||||
unsigned int constraint : 10; /* context constraint */
|
||||
unsigned int duplicated : 1;
|
||||
unsigned int opt_subexp : 1;
|
||||
#ifdef RE_ENABLE_I18N
|
||||
unsigned int accept_mb : 1;
|
||||
/* These 2 bits can be moved into the union if needed (e.g. if running out
|
||||
of bits; move opr.c to opr.c.c and move the flags to opr.c.flags). */
|
||||
unsigned int mb_partial : 1;
|
||||
#endif
|
||||
unsigned int word_char : 1;
|
||||
} re_token_t;
|
||||
|
||||
#define IS_EPSILON_NODE(type) ((type) & EPSILON_BIT)
|
||||
|
||||
struct re_string_t
|
||||
{
|
||||
/* Indicate the raw buffer which is the original string passed as an
|
||||
argument of regexec(), re_search(), etc.. */
|
||||
const unsigned char *raw_mbs;
|
||||
/* Store the multibyte string. In case of "case insensitive mode" like
|
||||
REG_ICASE, upper cases of the string are stored, otherwise MBS points
|
||||
the same address that RAW_MBS points. */
|
||||
unsigned char *mbs;
|
||||
#ifdef RE_ENABLE_I18N
|
||||
/* Store the wide character string which is corresponding to MBS. */
|
||||
wint_t *wcs;
|
||||
int *offsets;
|
||||
mbstate_t cur_state;
|
||||
#endif
|
||||
/* Index in RAW_MBS. Each character mbs[i] corresponds to
|
||||
raw_mbs[raw_mbs_idx + i]. */
|
||||
int raw_mbs_idx;
|
||||
/* The length of the valid characters in the buffers. */
|
||||
int valid_len;
|
||||
/* The corresponding number of bytes in raw_mbs array. */
|
||||
int valid_raw_len;
|
||||
/* The length of the buffers MBS and WCS. */
|
||||
int bufs_len;
|
||||
/* The index in MBS, which is updated by re_string_fetch_byte. */
|
||||
int cur_idx;
|
||||
/* length of RAW_MBS array. */
|
||||
int raw_len;
|
||||
/* This is RAW_LEN - RAW_MBS_IDX + VALID_LEN - VALID_RAW_LEN. */
|
||||
int len;
|
||||
/* End of the buffer may be shorter than its length in the cases such
|
||||
as re_match_2, re_search_2. Then, we use STOP for end of the buffer
|
||||
instead of LEN. */
|
||||
int raw_stop;
|
||||
/* This is RAW_STOP - RAW_MBS_IDX adjusted through OFFSETS. */
|
||||
int stop;
|
||||
|
||||
/* The context of mbs[0]. We store the context independently, since
|
||||
the context of mbs[0] may be different from raw_mbs[0], which is
|
||||
the beginning of the input string. */
|
||||
unsigned int tip_context;
|
||||
/* The translation passed as a part of an argument of re_compile_pattern. */
|
||||
RE_TRANSLATE_TYPE trans;
|
||||
/* Copy of re_dfa_t's word_char. */
|
||||
re_const_bitset_ptr_t word_char;
|
||||
/* 1 if REG_ICASE. */
|
||||
unsigned char icase;
|
||||
unsigned char is_utf8;
|
||||
unsigned char map_notascii;
|
||||
unsigned char mbs_allocated;
|
||||
unsigned char offsets_needed;
|
||||
unsigned char newline_anchor;
|
||||
unsigned char word_ops_used;
|
||||
int mb_cur_max;
|
||||
};
|
||||
typedef struct re_string_t re_string_t;
|
||||
|
||||
|
||||
struct re_dfa_t;
|
||||
typedef struct re_dfa_t re_dfa_t;
|
||||
|
||||
#ifndef _LIBC
|
||||
# ifdef __i386__
|
||||
# define internal_function __attribute ((regparm (3), stdcall))
|
||||
# else
|
||||
# define internal_function
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifndef NOT_IN_libc
|
||||
static reg_errcode_t re_string_realloc_buffers (re_string_t *pstr,
|
||||
int new_buf_len)
|
||||
internal_function;
|
||||
# ifdef RE_ENABLE_I18N
|
||||
static void build_wcs_buffer (re_string_t *pstr) internal_function;
|
||||
static reg_errcode_t build_wcs_upper_buffer (re_string_t *pstr)
|
||||
internal_function;
|
||||
# endif /* RE_ENABLE_I18N */
|
||||
static void build_upper_buffer (re_string_t *pstr) internal_function;
|
||||
static void re_string_translate_buffer (re_string_t *pstr) internal_function;
|
||||
static unsigned int re_string_context_at (const re_string_t *input, int idx,
|
||||
int eflags)
|
||||
internal_function __attribute ((pure));
|
||||
#endif
|
||||
#define re_string_peek_byte(pstr, offset) \
|
||||
((pstr)->mbs[(pstr)->cur_idx + offset])
|
||||
#define re_string_fetch_byte(pstr) \
|
||||
((pstr)->mbs[(pstr)->cur_idx++])
|
||||
#define re_string_first_byte(pstr, idx) \
|
||||
((idx) == (pstr)->valid_len || (pstr)->wcs[idx] != WEOF)
|
||||
#define re_string_is_single_byte_char(pstr, idx) \
|
||||
((pstr)->wcs[idx] != WEOF && ((pstr)->valid_len == (idx) + 1 \
|
||||
|| (pstr)->wcs[(idx) + 1] != WEOF))
|
||||
#define re_string_eoi(pstr) ((pstr)->stop <= (pstr)->cur_idx)
|
||||
#define re_string_cur_idx(pstr) ((pstr)->cur_idx)
|
||||
#define re_string_get_buffer(pstr) ((pstr)->mbs)
|
||||
#define re_string_length(pstr) ((pstr)->len)
|
||||
#define re_string_byte_at(pstr,idx) ((pstr)->mbs[idx])
|
||||
#define re_string_skip_bytes(pstr,idx) ((pstr)->cur_idx += (idx))
|
||||
#define re_string_set_index(pstr,idx) ((pstr)->cur_idx = (idx))
|
||||
|
||||
#ifndef __FreeBSD__
|
||||
#include <alloca.h>
|
||||
#endif
|
||||
|
||||
#ifndef _LIBC
|
||||
# if HAVE_ALLOCA
|
||||
/* The OS usually guarantees only one guard page at the bottom of the stack,
|
||||
and a page size can be as small as 4096 bytes. So we cannot safely
|
||||
allocate anything larger than 4096 bytes. Also care for the possibility
|
||||
of a few compiler-allocated temporary stack slots. */
|
||||
# define __libc_use_alloca(n) ((n) < 4032)
|
||||
# else
|
||||
/* alloca is implemented with malloc, so just use malloc. */
|
||||
# define __libc_use_alloca(n) 0
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#define re_malloc(t,n) ((t *) malloc ((n) * sizeof (t)))
|
||||
#define re_realloc(p,t,n) ((t *) realloc (p, (n) * sizeof (t)))
|
||||
#define re_free(p) free (p)
|
||||
|
||||
struct bin_tree_t
|
||||
{
|
||||
struct bin_tree_t *parent;
|
||||
struct bin_tree_t *left;
|
||||
struct bin_tree_t *right;
|
||||
struct bin_tree_t *first;
|
||||
struct bin_tree_t *next;
|
||||
|
||||
re_token_t token;
|
||||
|
||||
/* `node_idx' is the index in dfa->nodes, if `type' == 0.
|
||||
Otherwise `type' indicate the type of this node. */
|
||||
int node_idx;
|
||||
};
|
||||
typedef struct bin_tree_t bin_tree_t;
|
||||
|
||||
#define BIN_TREE_STORAGE_SIZE \
|
||||
((1024 - sizeof (void *)) / sizeof (bin_tree_t))
|
||||
|
||||
struct bin_tree_storage_t
|
||||
{
|
||||
struct bin_tree_storage_t *next;
|
||||
bin_tree_t data[BIN_TREE_STORAGE_SIZE];
|
||||
};
|
||||
typedef struct bin_tree_storage_t bin_tree_storage_t;
|
||||
|
||||
#define CONTEXT_WORD 1
|
||||
#define CONTEXT_NEWLINE (CONTEXT_WORD << 1)
|
||||
#define CONTEXT_BEGBUF (CONTEXT_NEWLINE << 1)
|
||||
#define CONTEXT_ENDBUF (CONTEXT_BEGBUF << 1)
|
||||
|
||||
#define IS_WORD_CONTEXT(c) ((c) & CONTEXT_WORD)
|
||||
#define IS_NEWLINE_CONTEXT(c) ((c) & CONTEXT_NEWLINE)
|
||||
#define IS_BEGBUF_CONTEXT(c) ((c) & CONTEXT_BEGBUF)
|
||||
#define IS_ENDBUF_CONTEXT(c) ((c) & CONTEXT_ENDBUF)
|
||||
#define IS_ORDINARY_CONTEXT(c) ((c) == 0)
|
||||
|
||||
#define IS_WORD_CHAR(ch) (isalnum (ch) || (ch) == '_')
|
||||
#define IS_NEWLINE(ch) ((ch) == NEWLINE_CHAR)
|
||||
#define IS_WIDE_WORD_CHAR(ch) (iswalnum (ch) || (ch) == L'_')
|
||||
#define IS_WIDE_NEWLINE(ch) ((ch) == WIDE_NEWLINE_CHAR)
|
||||
|
||||
#define NOT_SATISFY_PREV_CONSTRAINT(constraint,context) \
|
||||
((((constraint) & PREV_WORD_CONSTRAINT) && !IS_WORD_CONTEXT (context)) \
|
||||
|| ((constraint & PREV_NOTWORD_CONSTRAINT) && IS_WORD_CONTEXT (context)) \
|
||||
|| ((constraint & PREV_NEWLINE_CONSTRAINT) && !IS_NEWLINE_CONTEXT (context))\
|
||||
|| ((constraint & PREV_BEGBUF_CONSTRAINT) && !IS_BEGBUF_CONTEXT (context)))
|
||||
|
||||
#define NOT_SATISFY_NEXT_CONSTRAINT(constraint,context) \
|
||||
((((constraint) & NEXT_WORD_CONSTRAINT) && !IS_WORD_CONTEXT (context)) \
|
||||
|| (((constraint) & NEXT_NOTWORD_CONSTRAINT) && IS_WORD_CONTEXT (context)) \
|
||||
|| (((constraint) & NEXT_NEWLINE_CONSTRAINT) && !IS_NEWLINE_CONTEXT (context)) \
|
||||
|| (((constraint) & NEXT_ENDBUF_CONSTRAINT) && !IS_ENDBUF_CONTEXT (context)))
|
||||
|
||||
struct re_dfastate_t
|
||||
{
|
||||
unsigned int hash;
|
||||
re_node_set nodes;
|
||||
re_node_set non_eps_nodes;
|
||||
re_node_set inveclosure;
|
||||
re_node_set *entrance_nodes;
|
||||
struct re_dfastate_t **trtable, **word_trtable;
|
||||
unsigned int context : 4;
|
||||
unsigned int halt : 1;
|
||||
/* If this state can accept `multi byte'.
|
||||
Note that we refer to multibyte characters, and multi character
|
||||
collating elements as `multi byte'. */
|
||||
unsigned int accept_mb : 1;
|
||||
/* If this state has backreference node(s). */
|
||||
unsigned int has_backref : 1;
|
||||
unsigned int has_constraint : 1;
|
||||
};
|
||||
typedef struct re_dfastate_t re_dfastate_t;
|
||||
|
||||
struct re_state_table_entry
|
||||
{
|
||||
int num;
|
||||
int alloc;
|
||||
re_dfastate_t **array;
|
||||
};
|
||||
|
||||
/* Array type used in re_sub_match_last_t and re_sub_match_top_t. */
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int next_idx;
|
||||
int alloc;
|
||||
re_dfastate_t **array;
|
||||
} state_array_t;
|
||||
|
||||
/* Store information about the node NODE whose type is OP_CLOSE_SUBEXP. */
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int node;
|
||||
int str_idx; /* The position NODE match at. */
|
||||
state_array_t path;
|
||||
} re_sub_match_last_t;
|
||||
|
||||
/* Store information about the node NODE whose type is OP_OPEN_SUBEXP.
|
||||
And information about the node, whose type is OP_CLOSE_SUBEXP,
|
||||
corresponding to NODE is stored in LASTS. */
|
||||
|
||||
typedef struct
|
||||
{
|
||||
int str_idx;
|
||||
int node;
|
||||
state_array_t *path;
|
||||
int alasts; /* Allocation size of LASTS. */
|
||||
int nlasts; /* The number of LASTS. */
|
||||
re_sub_match_last_t **lasts;
|
||||
} re_sub_match_top_t;
|
||||
|
||||
struct re_backref_cache_entry
|
||||
{
|
||||
int node;
|
||||
int str_idx;
|
||||
int subexp_from;
|
||||
int subexp_to;
|
||||
char more;
|
||||
char unused;
|
||||
unsigned short int eps_reachable_subexps_map;
|
||||
};
|
||||
|
||||
typedef struct
|
||||
{
|
||||
/* The string object corresponding to the input string. */
|
||||
re_string_t input;
|
||||
#if defined _LIBC || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)
|
||||
const re_dfa_t *const dfa;
|
||||
#else
|
||||
const re_dfa_t *dfa;
|
||||
#endif
|
||||
/* EFLAGS of the argument of regexec. */
|
||||
int eflags;
|
||||
/* Where the matching ends. */
|
||||
int match_last;
|
||||
int last_node;
|
||||
/* The state log used by the matcher. */
|
||||
re_dfastate_t **state_log;
|
||||
int state_log_top;
|
||||
/* Back reference cache. */
|
||||
int nbkref_ents;
|
||||
int abkref_ents;
|
||||
struct re_backref_cache_entry *bkref_ents;
|
||||
int max_mb_elem_len;
|
||||
int nsub_tops;
|
||||
int asub_tops;
|
||||
re_sub_match_top_t **sub_tops;
|
||||
} re_match_context_t;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
re_dfastate_t **sifted_states;
|
||||
re_dfastate_t **limited_states;
|
||||
int last_node;
|
||||
int last_str_idx;
|
||||
re_node_set limits;
|
||||
} re_sift_context_t;
|
||||
|
||||
struct re_fail_stack_ent_t
|
||||
{
|
||||
int idx;
|
||||
int node;
|
||||
regmatch_t *regs;
|
||||
re_node_set eps_via_nodes;
|
||||
};
|
||||
|
||||
struct re_fail_stack_t
|
||||
{
|
||||
int num;
|
||||
int alloc;
|
||||
struct re_fail_stack_ent_t *stack;
|
||||
};
|
||||
|
||||
struct re_dfa_t
|
||||
{
|
||||
re_token_t *nodes;
|
||||
size_t nodes_alloc;
|
||||
size_t nodes_len;
|
||||
int *nexts;
|
||||
int *org_indices;
|
||||
re_node_set *edests;
|
||||
re_node_set *eclosures;
|
||||
re_node_set *inveclosures;
|
||||
struct re_state_table_entry *state_table;
|
||||
re_dfastate_t *init_state;
|
||||
re_dfastate_t *init_state_word;
|
||||
re_dfastate_t *init_state_nl;
|
||||
re_dfastate_t *init_state_begbuf;
|
||||
bin_tree_t *str_tree;
|
||||
bin_tree_storage_t *str_tree_storage;
|
||||
re_bitset_ptr_t sb_char;
|
||||
int str_tree_storage_idx;
|
||||
|
||||
/* number of subexpressions `re_nsub' is in regex_t. */
|
||||
unsigned int state_hash_mask;
|
||||
int init_node;
|
||||
int nbackref; /* The number of backreference in this dfa. */
|
||||
|
||||
/* Bitmap expressing which backreference is used. */
|
||||
bitset_word_t used_bkref_map;
|
||||
bitset_word_t completed_bkref_map;
|
||||
|
||||
unsigned int has_plural_match : 1;
|
||||
/* If this dfa has "multibyte node", which is a backreference or
|
||||
a node which can accept multibyte character or multi character
|
||||
collating element. */
|
||||
unsigned int has_mb_node : 1;
|
||||
unsigned int is_utf8 : 1;
|
||||
unsigned int map_notascii : 1;
|
||||
unsigned int word_ops_used : 1;
|
||||
int mb_cur_max;
|
||||
bitset_t word_char;
|
||||
reg_syntax_t syntax;
|
||||
int *subexp_map;
|
||||
#ifdef DEBUG
|
||||
char* re_str;
|
||||
#endif
|
||||
__libc_lock_define (, lock)
|
||||
};
|
||||
|
||||
#define re_node_set_init_empty(set) memset (set, '\0', sizeof (re_node_set))
|
||||
#define re_node_set_remove(set,id) \
|
||||
(re_node_set_remove_at (set, re_node_set_contains (set, id) - 1))
|
||||
#define re_node_set_empty(p) ((p)->nelem = 0)
|
||||
#define re_node_set_free(set) re_free ((set)->elems)
|
||||
|
||||
|
||||
typedef enum
|
||||
{
|
||||
SB_CHAR,
|
||||
MB_CHAR,
|
||||
EQUIV_CLASS,
|
||||
COLL_SYM,
|
||||
CHAR_CLASS
|
||||
} bracket_elem_type;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
bracket_elem_type type;
|
||||
union
|
||||
{
|
||||
unsigned char ch;
|
||||
unsigned char *name;
|
||||
wchar_t wch;
|
||||
} opr;
|
||||
} bracket_elem_t;
|
||||
|
||||
|
||||
/* Inline functions for bitset operation. */
|
||||
static inline void
|
||||
bitset_not (bitset_t set)
|
||||
{
|
||||
int bitset_i;
|
||||
for (bitset_i = 0; bitset_i < BITSET_WORDS; ++bitset_i)
|
||||
set[bitset_i] = ~set[bitset_i];
|
||||
}
|
||||
|
||||
static inline void
|
||||
bitset_merge (bitset_t dest, const bitset_t src)
|
||||
{
|
||||
int bitset_i;
|
||||
for (bitset_i = 0; bitset_i < BITSET_WORDS; ++bitset_i)
|
||||
dest[bitset_i] |= src[bitset_i];
|
||||
}
|
||||
|
||||
static inline void
|
||||
bitset_mask (bitset_t dest, const bitset_t src)
|
||||
{
|
||||
int bitset_i;
|
||||
for (bitset_i = 0; bitset_i < BITSET_WORDS; ++bitset_i)
|
||||
dest[bitset_i] &= src[bitset_i];
|
||||
}
|
||||
|
||||
#ifdef RE_ENABLE_I18N
|
||||
/* Inline functions for re_string. */
|
||||
static inline int
|
||||
internal_function __attribute ((pure))
|
||||
re_string_char_size_at (const re_string_t *pstr, int idx)
|
||||
{
|
||||
int byte_idx;
|
||||
if (pstr->mb_cur_max == 1)
|
||||
return 1;
|
||||
for (byte_idx = 1; idx + byte_idx < pstr->valid_len; ++byte_idx)
|
||||
if (pstr->wcs[idx + byte_idx] != WEOF)
|
||||
break;
|
||||
return byte_idx;
|
||||
}
|
||||
|
||||
static inline wint_t
|
||||
internal_function __attribute ((pure))
|
||||
re_string_wchar_at (const re_string_t *pstr, int idx)
|
||||
{
|
||||
if (pstr->mb_cur_max == 1)
|
||||
return (wint_t) pstr->mbs[idx];
|
||||
return (wint_t) pstr->wcs[idx];
|
||||
}
|
||||
|
||||
# ifndef NOT_IN_libc
|
||||
static int
|
||||
internal_function __attribute ((pure))
|
||||
re_string_elem_size_at (const re_string_t *pstr, int idx)
|
||||
{
|
||||
# ifdef _LIBC
|
||||
const unsigned char *p, *extra;
|
||||
const int32_t *table, *indirect;
|
||||
# include <locale/weight.h>
|
||||
uint_fast32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
|
||||
|
||||
if (nrules != 0)
|
||||
{
|
||||
table = (const int32_t *) _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB);
|
||||
extra = (const unsigned char *)
|
||||
_NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB);
|
||||
indirect = (const int32_t *) _NL_CURRENT (LC_COLLATE,
|
||||
_NL_COLLATE_INDIRECTMB);
|
||||
p = pstr->mbs + idx;
|
||||
findidx (&p, pstr->len - idx);
|
||||
return p - pstr->mbs - idx;
|
||||
}
|
||||
else
|
||||
# endif /* _LIBC */
|
||||
return 1;
|
||||
}
|
||||
# endif
|
||||
#endif /* RE_ENABLE_I18N */
|
||||
|
||||
#endif /* _REGEX_INTERNAL_H */
|
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user