diff options
Diffstat (limited to 'doc/api-documentation/html/regex.h-source.html')
| -rw-r--r-- | doc/api-documentation/html/regex.h-source.html | 560 |
1 files changed, 0 insertions, 560 deletions
diff --git a/doc/api-documentation/html/regex.h-source.html b/doc/api-documentation/html/regex.h-source.html deleted file mode 100644 index 58ab7bb..0000000 --- a/doc/api-documentation/html/regex.h-source.html +++ /dev/null @@ -1,560 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> -<html><head><meta name="robots" content="noindex"> -<title>regex.h Source File</title> -<link href="doxygen.css" rel="stylesheet" type="text/css"> -</head><body bgcolor="#ffffff"> -<!-- Generated by Doxygen 1.1.5 on Thu May 24 19:50:25 2001 --> -<center> -<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> </center> -<hr><h1>regex.h</h1><div class="fragment"><pre>00001 <font class="comment">/* Definitions for data structures and routines for the regular -</font>00002 <font class="comment"> expression library, version 0.12. -</font>00003 <font class="comment"> Copyright (C) 1985,89,90,91,92,93,95,96,97 Free Software Foundation, Inc. -</font>00004 <font class="comment"> -</font>00005 <font class="comment"> the C library, however. The master source lives in /gd/gnu/lib. -</font>00006 <font class="comment"> -</font>00007 <font class="comment">NOTE: The canonical source of this file is maintained with the -</font>00008 <font class="comment">GNU C Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu. -</font>00009 <font class="comment"> -</font>00010 <font class="comment">This program is free software; you can redistribute it and/or modify it -</font>00011 <font class="comment">under the terms of the GNU General Public License as published by the -</font>00012 <font class="comment">Free Software Foundation; either version 2, or (at your option) any -</font>00013 <font class="comment">later version. -</font>00014 <font class="comment"> -</font>00015 <font class="comment">This program is distributed in the hope that it will be useful, -</font>00016 <font class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of -</font>00017 <font class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -</font>00018 <font class="comment">GNU General Public License for more details. -</font>00019 <font class="comment"> -</font>00020 <font class="comment">You should have received a copy of the GNU General Public License -</font>00021 <font class="comment">along with this program; if not, write to the Free Software Foundation, -</font>00022 <font class="comment">Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */</font> -00023 -00024 <font class="preprocessor">#ifndef _REGEX_H -</font>00025 <font class="preprocessor"></font><font class="preprocessor">#define _REGEX_H 1 -</font>00026 <font class="preprocessor"></font> -00027 <font class="comment">/* Allow the use in C++ code. */</font> -00028 <font class="preprocessor">#ifdef __cplusplus -</font>00029 <font class="preprocessor"></font><font class="keyword">extern</font> <font class="stringliteral">"C"</font> -00030 { -00031 <font class="preprocessor">#endif -</font>00032 <font class="preprocessor"></font> -00033 <font class="comment">/* POSIX says that <sys/types.h> must be included (by the caller) before -</font>00034 <font class="comment"> <regex.h>. */</font> -00035 -00036 <font class="preprocessor">#if !defined (_POSIX_C_SOURCE) && !defined (_POSIX_SOURCE) && defined (VMS) -</font>00037 <font class="preprocessor"></font><font class="comment">/* VMS doesn't have `size_t' in <sys/types.h>, even though POSIX says it -</font>00038 <font class="comment"> should be there. */</font> -00039 <font class="preprocessor">#include <stddef.h></font> -00040 <font class="preprocessor">#endif -</font>00041 <font class="preprocessor"></font> -00042 <font class="comment">/* The following two types have to be signed and unsigned integer type -</font>00043 <font class="comment"> wide enough to hold a value of a pointer. For most ANSI compilers -</font>00044 <font class="comment"> ptrdiff_t and size_t should be likely OK. Still size of these two -</font>00045 <font class="comment"> types is 2 for Microsoft C. Ugh... */</font> -00046 <font class="keyword">typedef</font> <font class="keywordtype">long</font> <font class="keywordtype">int</font> s_reg_t; -00047 <font class="keyword">typedef</font> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">int</font> active_reg_t; -00048 -00049 <font class="comment">/* The following bits are used to determine the regexp syntax we -</font>00050 <font class="comment"> recognize. The set/not-set meanings are chosen so that Emacs syntax -</font>00051 <font class="comment"> remains the value 0. The bits are given in alphabetical order, and -</font>00052 <font class="comment"> the definitions shifted by one from the previous bit; thus, when we -</font>00053 <font class="comment"> add or remove a bit, only one other definition need change. */</font> -00054 <font class="keyword">typedef</font> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">int</font> reg_syntax_t; -00055 -00056 <font class="comment">/* If this bit is not set, then \ inside a bracket expression is literal. -</font>00057 <font class="comment"> If set, then such a \ quotes the following character. */</font> -00058 <font class="preprocessor">#define RE_BACKSLASH_ESCAPE_IN_LISTS ((unsigned long int) 1) -</font>00059 <font class="preprocessor"></font> -00060 <font class="comment">/* If this bit is not set, then + and ? are operators, and \+ and \? are -</font>00061 <font class="comment"> literals. -</font>00062 <font class="comment"> If set, then \+ and \? are operators and + and ? are literals. */</font> -00063 <font class="preprocessor">#define RE_BK_PLUS_QM (RE_BACKSLASH_ESCAPE_IN_LISTS << 1) -</font>00064 <font class="preprocessor"></font> -00065 <font class="comment">/* If this bit is set, then character classes are supported. They are: -</font>00066 <font class="comment"> [:alpha:], [:upper:], [:lower:], [:digit:], [:alnum:], [:xdigit:], -</font>00067 <font class="comment"> [:space:], [:print:], [:punct:], [:graph:], and [:cntrl:]. -</font>00068 <font class="comment"> If not set, then character classes are not supported. */</font> -00069 <font class="preprocessor">#define RE_CHAR_CLASSES (RE_BK_PLUS_QM << 1) -</font>00070 <font class="preprocessor"></font> -00071 <font class="comment">/* If this bit is set, then ^ and $ are always anchors (outside bracket -</font>00072 <font class="comment"> expressions, of course). -</font>00073 <font class="comment"> If this bit is not set, then it depends: -</font>00074 <font class="comment"> ^ is an anchor if it is at the beginning of a regular -</font>00075 <font class="comment"> expression or after an open-group or an alternation operator; -</font>00076 <font class="comment"> $ is an anchor if it is at the end of a regular expression, or -</font>00077 <font class="comment"> before a close-group or an alternation operator. -</font>00078 <font class="comment"> -</font>00079 <font class="comment"> This bit could be (re)combined with RE_CONTEXT_INDEP_OPS, because -</font>00080 <font class="comment"> POSIX draft 11.2 says that * etc. in leading positions is undefined. -</font>00081 <font class="comment"> We already implemented a previous draft which made those constructs -</font>00082 <font class="comment"> invalid, though, so we haven't changed the code back. */</font> -00083 <font class="preprocessor">#define RE_CONTEXT_INDEP_ANCHORS (RE_CHAR_CLASSES << 1) -</font>00084 <font class="preprocessor"></font> -00085 <font class="comment">/* If this bit is set, then special characters are always special -</font>00086 <font class="comment"> regardless of where they are in the pattern. -</font>00087 <font class="comment"> If this bit is not set, then special characters are special only in -</font>00088 <font class="comment"> some contexts; otherwise they are ordinary. Specifically, -</font>00089 <font class="comment"> * + ? and intervals are only special when not after the beginning, -</font>00090 <font class="comment"> open-group, or alternation operator. */</font> -00091 <font class="preprocessor">#define RE_CONTEXT_INDEP_OPS (RE_CONTEXT_INDEP_ANCHORS << 1) -</font>00092 <font class="preprocessor"></font> -00093 <font class="comment">/* If this bit is set, then *, +, ?, and { cannot be first in an re or -</font>00094 <font class="comment"> immediately after an alternation or begin-group operator. */</font> -00095 <font class="preprocessor">#define RE_CONTEXT_INVALID_OPS (RE_CONTEXT_INDEP_OPS << 1) -</font>00096 <font class="preprocessor"></font> -00097 <font class="comment">/* If this bit is set, then . matches newline. -</font>00098 <font class="comment"> If not set, then it doesn't. */</font> -00099 <font class="preprocessor">#define RE_DOT_NEWLINE (RE_CONTEXT_INVALID_OPS << 1) -</font>00100 <font class="preprocessor"></font> -00101 <font class="comment">/* If this bit is set, then . doesn't match NUL. -</font>00102 <font class="comment"> If not set, then it does. */</font> -00103 <font class="preprocessor">#define RE_DOT_NOT_NULL (RE_DOT_NEWLINE << 1) -</font>00104 <font class="preprocessor"></font> -00105 <font class="comment">/* If this bit is set, nonmatching lists [^...] do not match newline. -</font>00106 <font class="comment"> If not set, they do. */</font> -00107 <font class="preprocessor">#define RE_HAT_LISTS_NOT_NEWLINE (RE_DOT_NOT_NULL << 1) -</font>00108 <font class="preprocessor"></font> -00109 <font class="comment">/* If this bit is set, either \{...\} or {...} defines an -</font>00110 <font class="comment"> interval, depending on RE_NO_BK_BRACES. -</font>00111 <font class="comment"> If not set, \{, \}, {, and } are literals. */</font> -00112 <font class="preprocessor">#define RE_INTERVALS (RE_HAT_LISTS_NOT_NEWLINE << 1) -</font>00113 <font class="preprocessor"></font> -00114 <font class="comment">/* If this bit is set, +, ? and | aren't recognized as operators. -</font>00115 <font class="comment"> If not set, they are. */</font> -00116 <font class="preprocessor">#define RE_LIMITED_OPS (RE_INTERVALS << 1) -</font>00117 <font class="preprocessor"></font> -00118 <font class="comment">/* If this bit is set, newline is an alternation operator. -</font>00119 <font class="comment"> If not set, newline is literal. */</font> -00120 <font class="preprocessor">#define RE_NEWLINE_ALT (RE_LIMITED_OPS << 1) -</font>00121 <font class="preprocessor"></font> -00122 <font class="comment">/* If this bit is set, then `{...}' defines an interval, and \{ and \} -</font>00123 <font class="comment"> are literals. -</font>00124 <font class="comment"> If not set, then `\{...\}' defines an interval. */</font> -00125 <font class="preprocessor">#define RE_NO_BK_BRACES (RE_NEWLINE_ALT << 1) -</font>00126 <font class="preprocessor"></font> -00127 <font class="comment">/* If this bit is set, (...) defines a group, and \( and \) are literals. -</font>00128 <font class="comment"> If not set, \(...\) defines a group, and ( and ) are literals. */</font> -00129 <font class="preprocessor">#define RE_NO_BK_PARENS (RE_NO_BK_BRACES << 1) -</font>00130 <font class="preprocessor"></font> -00131 <font class="comment">/* If this bit is set, then <digit> matches <digit>. -</font>00132 <font class="comment"> If not set, then <digit> is a back-reference. */</font> -00133 <font class="preprocessor">#define RE_NO_BK_REFS (RE_NO_BK_PARENS << 1) -</font>00134 <font class="preprocessor"></font> -00135 <font class="comment">/* If this bit is set, then | is an alternation operator, and \| is literal. -</font>00136 <font class="comment"> If not set, then \| is an alternation operator, and | is literal. */</font> -00137 <font class="preprocessor">#define RE_NO_BK_VBAR (RE_NO_BK_REFS << 1) -</font>00138 <font class="preprocessor"></font> -00139 <font class="comment">/* If this bit is set, then an ending range point collating higher -</font>00140 <font class="comment"> than the starting range point, as in [z-a], is invalid. -</font>00141 <font class="comment"> If not set, then when ending range point collates higher than the -</font>00142 <font class="comment"> starting range point, the range is ignored. */</font> -00143 <font class="preprocessor">#define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1) -</font>00144 <font class="preprocessor"></font> -00145 <font class="comment">/* If this bit is set, then an unmatched ) is ordinary. -</font>00146 <font class="comment"> If not set, then an unmatched ) is invalid. */</font> -00147 <font class="preprocessor">#define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1) -</font>00148 <font class="preprocessor"></font> -00149 <font class="comment">/* If this bit is set, succeed as soon as we match the whole pattern, -</font>00150 <font class="comment"> without further backtracking. */</font> -00151 <font class="preprocessor">#define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1) -</font>00152 <font class="preprocessor"></font> -00153 <font class="comment">/* If this bit is set, do not process the GNU regex operators. -</font>00154 <font class="comment"> If not set, then the GNU regex operators are recognized. */</font> -00155 <font class="preprocessor">#define RE_NO_GNU_OPS (RE_NO_POSIX_BACKTRACKING << 1) -</font>00156 <font class="preprocessor"></font> -00157 <font class="comment">/* If this bit is set, turn on internal regex debugging. -</font>00158 <font class="comment"> If not set, and debugging was on, turn it off. -</font>00159 <font class="comment"> This only works if regex.c is compiled -DDEBUG. -</font>00160 <font class="comment"> We define this bit always, so that all that's needed to turn on -</font>00161 <font class="comment"> debugging is to recompile regex.c; the calling code can always have -</font>00162 <font class="comment"> this bit set, and it won't affect anything in the normal case. */</font> -00163 <font class="preprocessor">#define RE_DEBUG (RE_NO_GNU_OPS << 1) -</font>00164 <font class="preprocessor"></font> -00165 <font class="comment">/* This global variable defines the particular regexp syntax to use (for -</font>00166 <font class="comment"> some interfaces). When a regexp is compiled, the syntax used is -</font>00167 <font class="comment"> stored in the pattern buffer, so changing this does not affect -</font>00168 <font class="comment"> already-compiled regexps. */</font> -00169 <font class="keyword">extern</font> reg_syntax_t re_syntax_options; -00170 -00171 <font class="comment">/* Define combinations of the above bits for the standard possibilities. -</font>00172 <font class="comment"> (The [[[ comments delimit what gets put into the Texinfo file, so -</font>00173 <font class="comment"> don't delete them!) */</font> -00174 <font class="comment">/* [[[begin syntaxes]]] */</font> -00175 <font class="preprocessor">#define RE_SYNTAX_EMACS 0 -</font>00176 <font class="preprocessor"></font> -00177 <font class="preprocessor">#define RE_SYNTAX_AWK \ -</font>00178 <font class="preprocessor"> (RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DOT_NOT_NULL \ -</font>00179 <font class="preprocessor"> | RE_NO_BK_PARENS | RE_NO_BK_REFS \ -</font>00180 <font class="preprocessor"> | RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \ -</font>00181 <font class="preprocessor"> | RE_DOT_NEWLINE | RE_CONTEXT_INDEP_ANCHORS \ -</font>00182 <font class="preprocessor"> | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS) -</font>00183 <font class="preprocessor"></font> -00184 <font class="preprocessor">#define RE_SYNTAX_GNU_AWK \ -</font>00185 <font class="preprocessor"> ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \ -</font>00186 <font class="preprocessor"> & ~(RE_DOT_NOT_NULL | RE_INTERVALS | RE_CONTEXT_INDEP_OPS)) -</font>00187 <font class="preprocessor"></font> -00188 <font class="preprocessor">#define RE_SYNTAX_POSIX_AWK \ -</font>00189 <font class="preprocessor"> (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ -</font>00190 <font class="preprocessor"> | RE_INTERVALS | RE_NO_GNU_OPS) -</font>00191 <font class="preprocessor"></font> -00192 <font class="preprocessor">#define RE_SYNTAX_GREP \ -</font>00193 <font class="preprocessor"> (RE_BK_PLUS_QM | RE_CHAR_CLASSES \ -</font>00194 <font class="preprocessor"> | RE_HAT_LISTS_NOT_NEWLINE | RE_INTERVALS \ -</font>00195 <font class="preprocessor"> | RE_NEWLINE_ALT) -</font>00196 <font class="preprocessor"></font> -00197 <font class="preprocessor">#define RE_SYNTAX_EGREP \ -</font>00198 <font class="preprocessor"> (RE_CHAR_CLASSES | RE_CONTEXT_INDEP_ANCHORS \ -</font>00199 <font class="preprocessor"> | RE_CONTEXT_INDEP_OPS | RE_HAT_LISTS_NOT_NEWLINE \ -</font>00200 <font class="preprocessor"> | RE_NEWLINE_ALT | RE_NO_BK_PARENS \ -</font>00201 <font class="preprocessor"> | RE_NO_BK_VBAR) -</font>00202 <font class="preprocessor"></font> -00203 <font class="preprocessor">#define RE_SYNTAX_POSIX_EGREP \ -</font>00204 <font class="preprocessor"> (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES) -</font>00205 <font class="preprocessor"></font> -00206 <font class="comment">/* P1003.2/D11.2, section 4.20.7.1, lines 5078ff. */</font> -00207 <font class="preprocessor">#define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC -</font>00208 <font class="preprocessor"></font> -00209 <font class="preprocessor">#define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC -</font>00210 <font class="preprocessor"></font> -00211 <font class="comment">/* Syntax bits common to both basic and extended POSIX regex syntax. */</font> -00212 <font class="preprocessor">#define _RE_SYNTAX_POSIX_COMMON \ -</font>00213 <font class="preprocessor"> (RE_CHAR_CLASSES | RE_DOT_NEWLINE | RE_DOT_NOT_NULL \ -</font>00214 <font class="preprocessor"> | RE_INTERVALS | RE_NO_EMPTY_RANGES) -</font>00215 <font class="preprocessor"></font> -00216 <font class="preprocessor">#define RE_SYNTAX_POSIX_BASIC \ -</font>00217 <font class="preprocessor"> (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM) -</font>00218 <font class="preprocessor"></font> -00219 <font class="comment">/* Differs from ..._POSIX_BASIC only in that RE_BK_PLUS_QM becomes -</font>00220 <font class="comment"> RE_LIMITED_OPS, i.e., \? \+ \| are not recognized. Actually, this -</font>00221 <font class="comment"> isn't minimal, since other operators, such as \`, aren't disabled. */</font> -00222 <font class="preprocessor">#define RE_SYNTAX_POSIX_MINIMAL_BASIC \ -</font>00223 <font class="preprocessor"> (_RE_SYNTAX_POSIX_COMMON | RE_LIMITED_OPS) -</font>00224 <font class="preprocessor"></font> -00225 <font class="preprocessor">#define RE_SYNTAX_POSIX_EXTENDED \ -</font>00226 <font class="preprocessor"> (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ -</font>00227 <font class="preprocessor"> | RE_CONTEXT_INDEP_OPS | RE_NO_BK_BRACES \ -</font>00228 <font class="preprocessor"> | RE_NO_BK_PARENS | RE_NO_BK_VBAR \ -</font>00229 <font class="preprocessor"> | RE_UNMATCHED_RIGHT_PAREN_ORD) -</font>00230 <font class="preprocessor"></font> -00231 <font class="comment">/* Differs from ..._POSIX_EXTENDED in that RE_CONTEXT_INVALID_OPS -</font>00232 <font class="comment"> replaces RE_CONTEXT_INDEP_OPS and RE_NO_BK_REFS is added. */</font> -00233 <font class="preprocessor">#define RE_SYNTAX_POSIX_MINIMAL_EXTENDED \ -</font>00234 <font class="preprocessor"> (_RE_SYNTAX_POSIX_COMMON | RE_CONTEXT_INDEP_ANCHORS \ -</font>00235 <font class="preprocessor"> | RE_CONTEXT_INVALID_OPS | RE_NO_BK_BRACES \ -</font>00236 <font class="preprocessor"> | RE_NO_BK_PARENS | RE_NO_BK_REFS \ -</font>00237 <font class="preprocessor"> | RE_NO_BK_VBAR | RE_UNMATCHED_RIGHT_PAREN_ORD) -</font>00238 <font class="preprocessor"></font><font class="comment">/* [[[end syntaxes]]] */</font> -00239 -00240 <font class="comment">/* Maximum number of duplicates an interval can allow. Some systems -</font>00241 <font class="comment"> (erroneously) define this in other header files, but we want our -</font>00242 <font class="comment"> value, so remove any previous define. */</font> -00243 <font class="preprocessor">#ifdef RE_DUP_MAX -</font>00244 <font class="preprocessor"></font><font class="preprocessor">#undef RE_DUP_MAX -</font>00245 <font class="preprocessor"></font><font class="preprocessor">#endif -</font>00246 <font class="preprocessor"></font><font class="comment">/* If sizeof(int) == 2, then ((1 << 15) - 1) overflows. */</font> -00247 <font class="preprocessor">#define RE_DUP_MAX (0x7fff) -</font>00248 <font class="preprocessor"></font> -00249 -00250 <font class="comment">/* POSIX `cflags' bits (i.e., information for `regcomp'). */</font> -00251 -00252 <font class="comment">/* If this bit is set, then use extended regular expression syntax. -</font>00253 <font class="comment"> If not set, then use basic regular expression syntax. */</font> -00254 <font class="preprocessor">#define REG_EXTENDED 1 -</font>00255 <font class="preprocessor"></font> -00256 <font class="comment">/* If this bit is set, then ignore case when matching. -</font>00257 <font class="comment"> If not set, then case is significant. */</font> -00258 <font class="preprocessor">#define REG_ICASE (REG_EXTENDED << 1) -</font>00259 <font class="preprocessor"></font> -00260 <font class="comment">/* If this bit is set, then anchors do not match at newline -</font>00261 <font class="comment"> characters in the string. -</font>00262 <font class="comment"> If not set, then anchors do match at newlines. */</font> -00263 <font class="preprocessor">#define REG_NEWLINE (REG_ICASE << 1) -</font>00264 <font class="preprocessor"></font> -00265 <font class="comment">/* If this bit is set, then report only success or fail in regexec. -</font>00266 <font class="comment"> If not set, then returns differ between not matching and errors. */</font> -00267 <font class="preprocessor">#define REG_NOSUB (REG_NEWLINE << 1) -</font>00268 <font class="preprocessor"></font> -00269 -00270 <font class="comment">/* POSIX `eflags' bits (i.e., information for regexec). */</font> -00271 -00272 <font class="comment">/* If this bit is set, then the beginning-of-line operator doesn't match -</font>00273 <font class="comment"> the beginning of the string (presumably because it's not the -</font>00274 <font class="comment"> beginning of a line). -</font>00275 <font class="comment"> If not set, then the beginning-of-line operator does match the -</font>00276 <font class="comment"> beginning of the string. */</font> -00277 <font class="preprocessor">#define REG_NOTBOL 1 -</font>00278 <font class="preprocessor"></font> -00279 <font class="comment">/* Like REG_NOTBOL, except for the end-of-line. */</font> -00280 <font class="preprocessor">#define REG_NOTEOL (1 << 1) -</font>00281 <font class="preprocessor"></font> -00282 -00283 <font class="comment">/* If any error codes are removed, changed, or added, update the -</font>00284 <font class="comment"> `re_error_msg' table in regex.c. */</font> -00285 <font class="keyword">typedef</font> <font class="keyword">enum</font> -00286 { -00287 REG_NOERROR = 0, <font class="comment">/* Success. */</font> -00288 REG_NOMATCH, <font class="comment">/* Didn't find a match (for regexec). */</font> -00289 -00290 <font class="comment">/* POSIX regcomp return error codes. (In the order listed in the -</font>00291 <font class="comment"> standard.) */</font> -00292 REG_BADPAT, <font class="comment">/* Invalid pattern. */</font> -00293 REG_ECOLLATE, <font class="comment">/* Not implemented. */</font> -00294 REG_ECTYPE, <font class="comment">/* Invalid character class name. */</font> -00295 REG_EESCAPE, <font class="comment">/* Trailing backslash. */</font> -00296 REG_ESUBREG, <font class="comment">/* Invalid back reference. */</font> -00297 REG_EBRACK, <font class="comment">/* Unmatched left bracket. */</font> -00298 REG_EPAREN, <font class="comment">/* Parenthesis imbalance. */</font> -00299 REG_EBRACE, <font class="comment">/* Unmatched \{. */</font> -00300 REG_BADBR, <font class="comment">/* Invalid contents of \{\}. */</font> -00301 REG_ERANGE, <font class="comment">/* Invalid range end. */</font> -00302 REG_ESPACE, <font class="comment">/* Ran out of memory. */</font> -00303 REG_BADRPT, <font class="comment">/* No preceding re for repetition op. */</font> -00304 -00305 <font class="comment">/* Error codes we've added. */</font> -00306 REG_EEND, <font class="comment">/* Premature end. */</font> -00307 REG_ESIZE, <font class="comment">/* Compiled pattern bigger than 2^16 bytes. */</font> -00308 REG_ERPAREN <font class="comment">/* Unmatched ) or \); not returned from regcomp. */</font> -00309 } -00310 reg_errcode_t; -00311 -00312 <font class="comment">/* This data structure represents a compiled pattern. Before calling -</font>00313 <font class="comment"> the pattern compiler, the fields `buffer', `allocated', `fastmap', -</font>00314 <font class="comment"> `translate', and `no_sub' can be set. After the pattern has been -</font>00315 <font class="comment"> compiled, the `re_nsub' field is available. All other fields are -</font>00316 <font class="comment"> private to the regex routines. */</font> -00317 -00318 <font class="preprocessor">#ifndef RE_TRANSLATE_TYPE -</font>00319 <font class="preprocessor"></font><font class="preprocessor">#define RE_TRANSLATE_TYPE char * -</font>00320 <font class="preprocessor"></font><font class="preprocessor">#endif -</font>00321 <font class="preprocessor"></font> -00322 <font class="keyword">struct </font>re_pattern_buffer -00323 { -00324 <font class="comment">/* [[[begin pattern_buffer]]] */</font> -00325 <font class="comment">/* Space that holds the compiled pattern. It is declared as -</font>00326 <font class="comment"> `unsigned char *' because its elements are -</font>00327 <font class="comment"> sometimes used as array indexes. */</font> -00328 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *buffer; -00329 -00330 <font class="comment">/* Number of bytes to which `buffer' points. */</font> -00331 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">int</font> allocated; -00332 -00333 <font class="comment">/* Number of bytes actually used in `buffer'. */</font> -00334 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">int</font> used; -00335 -00336 <font class="comment">/* Syntax setting with which the pattern was compiled. */</font> -00337 reg_syntax_t syntax; -00338 -00339 <font class="comment">/* Pointer to a fastmap, if any, otherwise zero. re_search uses -</font>00340 <font class="comment"> the fastmap, if there is one, to skip over impossible -</font>00341 <font class="comment"> starting points for matches. */</font> -00342 <font class="keywordtype">char</font> *fastmap; -00343 -00344 <font class="comment">/* Either a translate table to apply to all characters before -</font>00345 <font class="comment"> comparing them, or zero for no translation. The translation -</font>00346 <font class="comment"> is applied to a pattern when it is compiled and to a string -</font>00347 <font class="comment"> when it is matched. */</font> -00348 RE_TRANSLATE_TYPE translate; -00349 -00350 <font class="comment">/* Number of subexpressions found by the compiler. */</font> -00351 size_t re_nsub; -00352 -00353 <font class="comment">/* Zero if this pattern cannot match the empty string, one else. -</font>00354 <font class="comment"> Well, in truth it's used only in `re_search_2', to see -</font>00355 <font class="comment"> whether or not we should use the fastmap, so we don't set -</font>00356 <font class="comment"> this absolutely perfectly; see `re_compile_fastmap' (the -</font>00357 <font class="comment"> `duplicate' case). */</font> -00358 <font class="keywordtype">unsigned</font> can_be_null:1; -00359 -00360 <font class="comment">/* If REGS_UNALLOCATED, allocate space in the `regs' structure -</font>00361 <font class="comment"> for `max (RE_NREGS, re_nsub + 1)' groups. -</font>00362 <font class="comment"> If REGS_REALLOCATE, reallocate space if necessary. -</font>00363 <font class="comment"> If REGS_FIXED, use what's there. */</font> -00364 <font class="preprocessor">#define REGS_UNALLOCATED 0 -</font>00365 <font class="preprocessor"></font><font class="preprocessor">#define REGS_REALLOCATE 1 -</font>00366 <font class="preprocessor"></font><font class="preprocessor">#define REGS_FIXED 2 -</font>00367 <font class="preprocessor"></font> <font class="keywordtype">unsigned</font> regs_allocated:2; -00368 -00369 <font class="comment">/* Set to zero when `regex_compile' compiles a pattern; set to one -</font>00370 <font class="comment"> by `re_compile_fastmap' if it updates the fastmap. */</font> -00371 <font class="keywordtype">unsigned</font> fastmap_accurate:1; -00372 -00373 <font class="comment">/* If set, `re_match_2' does not return information about -</font>00374 <font class="comment"> subexpressions. */</font> -00375 <font class="keywordtype">unsigned</font> no_sub:1; -00376 -00377 <font class="comment">/* If set, a beginning-of-line anchor doesn't match at the -</font>00378 <font class="comment"> beginning of the string. */</font> -00379 <font class="keywordtype">unsigned</font> not_bol:1; -00380 -00381 <font class="comment">/* Similarly for an end-of-line anchor. */</font> -00382 <font class="keywordtype">unsigned</font> not_eol:1; -00383 -00384 <font class="comment">/* If true, an anchor at a newline matches. */</font> -00385 <font class="keywordtype">unsigned</font> newline_anchor:1; -00386 -00387 <font class="comment">/* [[[end pattern_buffer]]] */</font> -00388 }; -00389 -00390 <font class="keyword">typedef</font> <font class="keyword">struct </font>re_pattern_buffer regex_t; -00391 -00392 <font class="comment">/* Type for byte offsets within the string. POSIX mandates this. */</font> -00393 <font class="keyword">typedef</font> <font class="keywordtype">int</font> regoff_t; -00394 -00395 -00396 <font class="comment">/* This is the structure we store register match data in. See -</font>00397 <font class="comment"> regex.texinfo for a full description of what registers match. */</font> -00398 <font class="keyword">struct </font>re_registers -00399 { -00400 <font class="keywordtype">unsigned</font> num_regs; -00401 regoff_t *start; -00402 regoff_t *end; -00403 }; -00404 -00405 -00406 <font class="comment">/* If `regs_allocated' is REGS_UNALLOCATED in the pattern buffer, -</font>00407 <font class="comment"> `re_match_2' returns information about at least this many registers -</font>00408 <font class="comment"> the first time a `regs' structure is passed. */</font> -00409 <font class="preprocessor">#ifndef RE_NREGS -</font>00410 <font class="preprocessor"></font><font class="preprocessor">#define RE_NREGS 30 -</font>00411 <font class="preprocessor"></font><font class="preprocessor">#endif -</font>00412 <font class="preprocessor"></font> -00413 -00414 <font class="comment">/* POSIX specification for registers. Aside from the different names than -</font>00415 <font class="comment"> `re_registers', POSIX uses an array of structures, instead of a -</font>00416 <font class="comment"> structure of arrays. */</font> -00417 <font class="keyword">typedef</font> <font class="keyword">struct -</font>00418 <font class="keyword"> </font>{ -00419 regoff_t rm_so; <font class="comment">/* Byte offset from string's start to substring's start. */</font> -00420 regoff_t rm_eo; <font class="comment">/* Byte offset from string's start to substring's end. */</font> -00421 } -00422 regmatch_t; -00423 -00424 <font class="comment">/* Declarations for routines. */</font> -00425 -00426 <font class="comment">/* To avoid duplicating every routine declaration -- once with a -</font>00427 <font class="comment"> prototype (if we are ANSI), and once without (if we aren't) -- we -</font>00428 <font class="comment"> use the following macro to declare argument types. This -</font>00429 <font class="comment"> unfortunately clutters up the declarations a bit, but I think it's -</font>00430 <font class="comment"> worth it. */</font> -00431 <font class="preprocessor">#ifndef __STDC__ -</font>00432 <font class="preprocessor"></font><font class="preprocessor">#define __STDC__ 1 -</font>00433 <font class="preprocessor"></font><font class="preprocessor">#endif -</font>00434 <font class="preprocessor"></font><font class="preprocessor">#if __STDC__ -</font>00435 <font class="preprocessor"></font> -00436 <font class="preprocessor">#define _RE_ARGS(args) args -</font>00437 <font class="preprocessor"></font> -00438 <font class="preprocessor">#else </font><font class="comment">/* not __STDC__ */</font> -00439 -00440 <font class="preprocessor">#define _RE_ARGS(args) () -</font>00441 <font class="preprocessor"></font> -00442 <font class="preprocessor">#endif </font><font class="comment">/* not __STDC__ */</font> -00443 -00444 <font class="comment">/* Sets the current default syntax to SYNTAX, and return the old syntax. -</font>00445 <font class="comment"> You can also simply assign to the `re_syntax_options' variable. */</font> -00446 <font class="keyword">extern</font> reg_syntax_t re_set_syntax _RE_ARGS ((reg_syntax_t syntax)); -00447 -00448 <font class="comment">/* Compile the regular expression PATTERN, with length LENGTH -</font>00449 <font class="comment"> and syntax given by the global `re_syntax_options', into the buffer -</font>00450 <font class="comment"> BUFFER. Return NULL if successful, and an error string if not. */</font> -00451 <font class="keyword">extern</font> <font class="keyword">const</font> <font class="keywordtype">char</font> *re_compile_pattern -00452 _RE_ARGS ((<font class="keyword">const</font> <font class="keywordtype">char</font> *pattern, size_t length, -00453 <font class="keyword">struct</font> re_pattern_buffer * buffer)); -00454 -00455 -00456 <font class="comment">/* Compile a fastmap for the compiled pattern in BUFFER; used to -</font>00457 <font class="comment"> accelerate searches. Return 0 if successful and -2 if was an -</font>00458 <font class="comment"> internal error. */</font> -00459 <font class="keyword">extern</font> <font class="keywordtype">int</font> re_compile_fastmap -00460 _RE_ARGS ((<font class="keyword">struct</font> re_pattern_buffer * buffer)); -00461 -00462 -00463 <font class="comment">/* Search in the string STRING (with length LENGTH) for the pattern -</font>00464 <font class="comment"> compiled into BUFFER. Start searching at position START, for RANGE -</font>00465 <font class="comment"> characters. Return the starting position of the match, -1 for no -</font>00466 <font class="comment"> match, or -2 for an internal error. Also return register -</font>00467 <font class="comment"> information in REGS (if REGS and BUFFER->no_sub are nonzero). */</font> -00468 <font class="keyword">extern</font> <font class="keywordtype">int</font> re_search -00469 _RE_ARGS ((<font class="keyword">struct</font> re_pattern_buffer * buffer, <font class="keyword">const</font> <font class="keywordtype">char</font> *string, -00470 <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> start, <font class="keywordtype">int</font> range, <font class="keyword">struct</font> re_registers * regs)); -00471 -00472 -00473 <font class="comment">/* Like `re_search', but search in the concatenation of STRING1 and -</font>00474 <font class="comment"> STRING2. Also, stop searching at index START + STOP. */</font> -00475 <font class="keyword">extern</font> <font class="keywordtype">int</font> re_search_2 -00476 _RE_ARGS ((<font class="keyword">struct</font> re_pattern_buffer * buffer, <font class="keyword">const</font> <font class="keywordtype">char</font> *string1, -00477 <font class="keywordtype">int</font> length1, <font class="keyword">const</font> <font class="keywordtype">char</font> *string2, <font class="keywordtype">int</font> length2, -00478 <font class="keywordtype">int</font> start, <font class="keywordtype">int</font> range, <font class="keyword">struct</font> re_registers * regs, <font class="keywordtype">int</font> stop)); -00479 -00480 -00481 <font class="comment">/* Like `re_search', but return how many characters in STRING the regexp -</font>00482 <font class="comment"> in BUFFER matched, starting at position START. */</font> -00483 <font class="keyword">extern</font> <font class="keywordtype">int</font> re_match -00484 _RE_ARGS ((<font class="keyword">struct</font> re_pattern_buffer * buffer, <font class="keyword">const</font> <font class="keywordtype">char</font> *string, -00485 <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> start, <font class="keyword">struct</font> re_registers * regs)); -00486 -00487 -00488 <font class="comment">/* Relates to `re_match' as `re_search_2' relates to `re_search'. */</font> -00489 <font class="keyword">extern</font> <font class="keywordtype">int</font> re_match_2 -00490 _RE_ARGS ((<font class="keyword">struct</font> re_pattern_buffer * buffer, <font class="keyword">const</font> <font class="keywordtype">char</font> *string1, -00491 <font class="keywordtype">int</font> length1, <font class="keyword">const</font> <font class="keywordtype">char</font> *string2, <font class="keywordtype">int</font> length2, -00492 <font class="keywordtype">int</font> start, <font class="keyword">struct</font> re_registers * regs, <font class="keywordtype">int</font> stop)); -00493 -00494 -00495 <font class="comment">/* Set REGS to hold NUM_REGS registers, storing them in STARTS and -</font>00496 <font class="comment"> ENDS. Subsequent matches using BUFFER and REGS will use this memory -</font>00497 <font class="comment"> for recording register information. STARTS and ENDS must be -</font>00498 <font class="comment"> allocated with malloc, and must each be at least `NUM_REGS * sizeof -</font>00499 <font class="comment"> (regoff_t)' bytes long. -</font>00500 <font class="comment"> -</font>00501 <font class="comment"> If NUM_REGS == 0, then subsequent matches should allocate their own -</font>00502 <font class="comment"> register data. -</font>00503 <font class="comment"> -</font>00504 <font class="comment"> Unless this function is called, the first search or match using -</font>00505 <font class="comment"> PATTERN_BUFFER will allocate its own register data, without -</font>00506 <font class="comment"> freeing the old data. */</font> -00507 <font class="keyword">extern</font> <font class="keywordtype">void</font> re_set_registers -00508 _RE_ARGS ((<font class="keyword">struct</font> re_pattern_buffer * buffer, <font class="keyword">struct</font> re_registers * regs, -00509 <font class="keywordtype">unsigned</font> num_regs, regoff_t * starts, regoff_t * ends)); -00510 -00511 <font class="preprocessor">#ifdef _REGEX_RE_COMP -</font>00512 <font class="preprocessor"></font><font class="preprocessor">#ifndef _CRAY -</font>00513 <font class="preprocessor"></font><font class="comment">/* 4.2 bsd compatibility. */</font> -00514 <font class="keyword">extern</font> <font class="keywordtype">char</font> *re_comp _RE_ARGS ((<font class="keyword">const</font> <font class="keywordtype">char</font> *)); -00515 <font class="keyword">extern</font> <font class="keywordtype">int</font> re_exec _RE_ARGS ((<font class="keyword">const</font> <font class="keywordtype">char</font> *)); -00516 <font class="preprocessor">#endif -</font>00517 <font class="preprocessor"></font><font class="preprocessor">#endif -</font>00518 <font class="preprocessor"></font> -00519 <font class="comment">/* POSIX compatibility. */</font> -00520 <font class="keyword">extern</font> <font class="keywordtype">int</font> regcomp -00521 _RE_ARGS ((regex_t * preg, <font class="keyword">const</font> <font class="keywordtype">char</font> *pattern, <font class="keywordtype">int</font> cflags)); -00522 <font class="keyword">extern</font> <font class="keywordtype">int</font> regexec -00523 _RE_ARGS ( -00524 (<font class="keyword">const</font> regex_t * preg, <font class="keyword">const</font> <font class="keywordtype">char</font> *string, size_t nmatch, -00525 regmatch_t pmatch[], <font class="keywordtype">int</font> eflags)); -00526 <font class="keyword">extern</font> size_t regerror -00527 _RE_ARGS ( -00528 (<font class="keywordtype">int</font> errcode, <font class="keyword">const</font> regex_t * preg, <font class="keywordtype">char</font> *errbuf, -00529 size_t errbuf_size)); -00530 <font class="keyword">extern</font> <font class="keywordtype">void</font> regfree _RE_ARGS ((regex_t * preg)); -00531 -00532 -00533 <font class="preprocessor">#ifdef __cplusplus -</font>00534 <font class="preprocessor"></font>} -00535 <font class="preprocessor">#endif </font><font class="comment">/* C++ */</font> -00536 -00537 <font class="preprocessor">#endif </font><font class="comment">/* regex.h */</font> -00538 -00539 <font class="comment">/* -</font>00540 <font class="comment">Local variables: -</font>00541 <font class="comment">make-backup-files: t -</font>00542 <font class="comment">version-control: t -</font>00543 <font class="comment">trim-versions-without-asking: nil -</font>00544 <font class="comment">End: -</font>00545 <font class="comment">*/</font> -</div></pre><hr><address><small>Generated at Thu May 24 19:50:25 2001 for The Sword Project by -<a href="http://www.stack.nl/~dimitri/doxygen/index.html"> -<img src="doxygen.gif" alt="doxygen" align=center border=0 -width=110 height=53></a>1.1.5 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>, - © 1997-2000</small></address> -</body> -</html> |