glib/gregex.h

   1 /* GRegex -- regular expression API wrapper around PCRE.
   2  *
   3  * Copyright (C) 1999, 2000 Scott Wimer
   4  * Copyright (C) 2004, Matthias Clasen <mclasen@redhat.com>
   5  * Copyright (C) 2005 - 2007, Marco Barisione <marco@barisione.org>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #ifndef __G_REGEX_H__
  23 #define __G_REGEX_H__
  24
  25 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  26 #error "Only <glib.h> can be included directly."
  27 #endif
  28
  29 #include <glib/gerror.h>
  30 #include <glib/gstring.h>
  31
  32 G_BEGIN_DECLS
  33
  34 /**
  35  * GRegexError:
  36  * @G_REGEX_ERROR_COMPILE: Compilation of the regular expression failed.
  37  * @G_REGEX_ERROR_OPTIMIZE: Optimization of the regular expression failed.
  38  * @G_REGEX_ERROR_REPLACE: Replacement failed due to an ill-formed replacement
  39  *     string.
  40  * @G_REGEX_ERROR_MATCH: The match process failed.
  41  * @G_REGEX_ERROR_INTERNAL: Internal error of the regular expression engine.
  42  *     Since 2.16
  43  * @G_REGEX_ERROR_STRAY_BACKSLASH: "\\" at end of pattern. Since 2.16
  44  * @G_REGEX_ERROR_MISSING_CONTROL_CHAR: "\\c" at end of pattern. Since 2.16
  45  * @G_REGEX_ERROR_UNRECOGNIZED_ESCAPE: Unrecognized character follows "\\".
  46  *     Since 2.16
  47  * @G_REGEX_ERROR_QUANTIFIERS_OUT_OF_ORDER: Numbers out of order in "{}"
  48  *     quantifier. Since 2.16
  49  * @G_REGEX_ERROR_QUANTIFIER_TOO_BIG: Number too big in "{}" quantifier.
  50  *     Since 2.16
  51  * @G_REGEX_ERROR_UNTERMINATED_CHARACTER_CLASS: Missing terminating "]" for
  52  *     character class. Since 2.16
  53  * @G_REGEX_ERROR_INVALID_ESCAPE_IN_CHARACTER_CLASS: Invalid escape sequence
  54  *     in character class. Since 2.16
  55  * @G_REGEX_ERROR_RANGE_OUT_OF_ORDER: Range out of order in character class.
  56  *     Since 2.16
  57  * @G_REGEX_ERROR_NOTHING_TO_REPEAT: Nothing to repeat. Since 2.16
  58  * @G_REGEX_ERROR_UNRECOGNIZED_CHARACTER: Unrecognized character after "(?",
  59  *     "(?&lt;" or "(?P". Since 2.16
  60  * @G_REGEX_ERROR_POSIX_NAMED_CLASS_OUTSIDE_CLASS: POSIX named classes are
  61  *     supported only within a class. Since 2.16
  62  * @G_REGEX_ERROR_UNMATCHED_PARENTHESIS: Missing terminating ")" or ")"
  63  *     without opening "(". Since 2.16
  64  * @G_REGEX_ERROR_INEXISTENT_SUBPATTERN_REFERENCE: Reference to non-existent
  65  *     subpattern. Since 2.16
  66  * @G_REGEX_ERROR_UNTERMINATED_COMMENT: Missing terminating ")" after comment.
  67  *     Since 2.16
  68  * @G_REGEX_ERROR_EXPRESSION_TOO_LARGE: Regular expression too large.
  69  *     Since 2.16
  70  * @G_REGEX_ERROR_MEMORY_ERROR: Failed to get memory. Since 2.16
  71  * @G_REGEX_ERROR_VARIABLE_LENGTH_LOOKBEHIND: Lookbehind assertion is not
  72  *     fixed length. Since 2.16
  73  * @G_REGEX_ERROR_MALFORMED_CONDITION: Malformed number or name after "(?(".
  74  *     Since 2.16
  75  * @G_REGEX_ERROR_TOO_MANY_CONDITIONAL_BRANCHES: Conditional group contains
  76  *     more than two branches. Since 2.16
  77  * @G_REGEX_ERROR_ASSERTION_EXPECTED: Assertion expected after "(?(".
  78  *     Since 2.16
  79  * @G_REGEX_ERROR_UNKNOWN_POSIX_CLASS_NAME: Unknown POSIX class name.
  80  *     Since 2.16
  81  * @G_REGEX_ERROR_POSIX_COLLATING_ELEMENTS_NOT_SUPPORTED: POSIX collating
  82  *     elements are not supported. Since 2.16
  83  * @G_REGEX_ERROR_HEX_CODE_TOO_LARGE: Character value in "\\x{...}" sequence
  84  *     is too large. Since 2.16
  85  * @G_REGEX_ERROR_INVALID_CONDITION: Invalid condition "(?(0)". Since 2.16
  86  * @G_REGEX_ERROR_SINGLE_BYTE_MATCH_IN_LOOKBEHIND: \\C not allowed in
  87  *     lookbehind assertion. Since 2.16
  88  * @G_REGEX_ERROR_INFINITE_LOOP: Recursive call could loop indefinitely.
  89  *     Since 2.16
  90  * @G_REGEX_ERROR_MISSING_SUBPATTERN_NAME_TERMINATOR: Missing terminator
  91  *     in subpattern name. Since 2.16
  92  * @G_REGEX_ERROR_DUPLICATE_SUBPATTERN_NAME: Two named subpatterns have
  93  *     the same name. Since 2.16
  94  * @G_REGEX_ERROR_MALFORMED_PROPERTY: Malformed "\\P" or "\\p" sequence.
  95  *     Since 2.16
  96  * @G_REGEX_ERROR_UNKNOWN_PROPERTY: Unknown property name after "\\P" or
  97  *     "\\p". Since 2.16
  98  * @G_REGEX_ERROR_SUBPATTERN_NAME_TOO_LONG: Subpattern name is too long
  99  *     (maximum 32 characters). Since 2.16
 100  * @G_REGEX_ERROR_TOO_MANY_SUBPATTERNS: Too many named subpatterns (maximum
 101  *     10,000). Since 2.16
 102  * @G_REGEX_ERROR_INVALID_OCTAL_VALUE: Octal value is greater than "\\377".
 103  *     Since 2.16
 104  * @G_REGEX_ERROR_TOO_MANY_BRANCHES_IN_DEFINE: "DEFINE" group contains more
 105  *     than one branch. Since 2.16
 106  * @G_REGEX_ERROR_DEFINE_REPETION: Repeating a "DEFINE" group is not allowed.
 107  *     This error is never raised. Since: 2.16 Deprecated: 2.34
 108  * @G_REGEX_ERROR_INCONSISTENT_NEWLINE_OPTIONS: Inconsistent newline options.
 109  *     Since 2.16
 110  * @G_REGEX_ERROR_MISSING_BACK_REFERENCE: "\\g" is not followed by a braced,
 111  *      angle-bracketed, or quoted name or number, or by a plain number. Since: 2.16
 112  * @G_REGEX_ERROR_INVALID_RELATIVE_REFERENCE: relative reference must not be zero. Since: 2.34
 113  * @G_REGEX_ERROR_BACKTRACKING_CONTROL_VERB_ARGUMENT_FORBIDDEN: the backtracing
 114  *     control verb used does not allow an argument. Since: 2.34
 115  * @G_REGEX_ERROR_UNKNOWN_BACKTRACKING_CONTROL_VERB: unknown backtracing
 116  *     control verb. Since: 2.34
 117  * @G_REGEX_ERROR_NUMBER_TOO_BIG: number is too big in escape sequence. Since: 2.34
 118  * @G_REGEX_ERROR_MISSING_SUBPATTERN_NAME: Missing subpattern name. Since: 2.34
 119  * @G_REGEX_ERROR_MISSING_DIGIT: Missing digit. Since 2.34
 120  * @G_REGEX_ERROR_INVALID_DATA_CHARACTER: In JavaScript compatibility mode,
 121  *     "[" is an invalid data character. Since: 2.34
 122  * @G_REGEX_ERROR_EXTRA_SUBPATTERN_NAME: different names for subpatterns of the
 123  *     same number are not allowed. Since: 2.34
 124  * @G_REGEX_ERROR_BACKTRACKING_CONTROL_VERB_ARGUMENT_REQUIRED: the backtracing control
 125  *     verb requires an argument. Since: 2.34
 126  * @G_REGEX_ERROR_INVALID_CONTROL_CHAR: "\\c" must be followed by an ASCII
 127  *     character. Since: 2.34
 128  * @G_REGEX_ERROR_MISSING_NAME: "\\k" is not followed by a braced, angle-bracketed, or
 129  *     quoted name. Since: 2.34
 130  * @G_REGEX_ERROR_NOT_SUPPORTED_IN_CLASS: "\\N" is not supported in a class. Since: 2.34
 131  * @G_REGEX_ERROR_TOO_MANY_FORWARD_REFERENCES: too many forward references. Since: 2.34
 132  * @G_REGEX_ERROR_NAME_TOO_LONG: the name is too long in "(*MARK)", "(*PRUNE)",
 133  *     "(*SKIP)", or "(*THEN)". Since: 2.34
 134  * @G_REGEX_ERROR_CHARACTER_VALUE_TOO_LARGE: the character value in the \\u sequence is
 135  *     too large. Since: 2.34
 136  *
 137  * Error codes returned by regular expressions functions.
 138  *
 139  * Since: 2.14
 140  */
 141 typedef enum
 142 {
 143   G_REGEX_ERROR_COMPILE,
 144   G_REGEX_ERROR_OPTIMIZE,
 145   G_REGEX_ERROR_REPLACE,
 146   G_REGEX_ERROR_MATCH,
 147   G_REGEX_ERROR_INTERNAL,
 148
 149   /* These are the error codes from PCRE + 100 */
 150   G_REGEX_ERROR_STRAY_BACKSLASH = 101,
 151   G_REGEX_ERROR_MISSING_CONTROL_CHAR = 102,
 152   G_REGEX_ERROR_UNRECOGNIZED_ESCAPE = 103,
 153   G_REGEX_ERROR_QUANTIFIERS_OUT_OF_ORDER = 104,
 154   G_REGEX_ERROR_QUANTIFIER_TOO_BIG = 105,
 155   G_REGEX_ERROR_UNTERMINATED_CHARACTER_CLASS = 106,
 156   G_REGEX_ERROR_INVALID_ESCAPE_IN_CHARACTER_CLASS = 107,
 157   G_REGEX_ERROR_RANGE_OUT_OF_ORDER = 108,
 158   G_REGEX_ERROR_NOTHING_TO_REPEAT = 109,
 159   G_REGEX_ERROR_UNRECOGNIZED_CHARACTER = 112,
 160   G_REGEX_ERROR_POSIX_NAMED_CLASS_OUTSIDE_CLASS = 113,
 161   G_REGEX_ERROR_UNMATCHED_PARENTHESIS = 114,
 162   G_REGEX_ERROR_INEXISTENT_SUBPATTERN_REFERENCE = 115,
 163   G_REGEX_ERROR_UNTERMINATED_COMMENT = 118,
 164   G_REGEX_ERROR_EXPRESSION_TOO_LARGE = 120,
 165   G_REGEX_ERROR_MEMORY_ERROR = 121,
 166   G_REGEX_ERROR_VARIABLE_LENGTH_LOOKBEHIND = 125,
 167   G_REGEX_ERROR_MALFORMED_CONDITION = 126,
 168   G_REGEX_ERROR_TOO_MANY_CONDITIONAL_BRANCHES = 127,
 169   G_REGEX_ERROR_ASSERTION_EXPECTED = 128,
 170   G_REGEX_ERROR_UNKNOWN_POSIX_CLASS_NAME = 130,
 171   G_REGEX_ERROR_POSIX_COLLATING_ELEMENTS_NOT_SUPPORTED = 131,
 172   G_REGEX_ERROR_HEX_CODE_TOO_LARGE = 134,
 173   G_REGEX_ERROR_INVALID_CONDITION = 135,
 174   G_REGEX_ERROR_SINGLE_BYTE_MATCH_IN_LOOKBEHIND = 136,
 175   G_REGEX_ERROR_INFINITE_LOOP = 140,
 176   G_REGEX_ERROR_MISSING_SUBPATTERN_NAME_TERMINATOR = 142,
 177   G_REGEX_ERROR_DUPLICATE_SUBPATTERN_NAME = 143,
 178   G_REGEX_ERROR_MALFORMED_PROPERTY = 146,
 179   G_REGEX_ERROR_UNKNOWN_PROPERTY = 147,
 180   G_REGEX_ERROR_SUBPATTERN_NAME_TOO_LONG = 148,
 181   G_REGEX_ERROR_TOO_MANY_SUBPATTERNS = 149,
 182   G_REGEX_ERROR_INVALID_OCTAL_VALUE = 151,
 183   G_REGEX_ERROR_TOO_MANY_BRANCHES_IN_DEFINE = 154,
 184   G_REGEX_ERROR_DEFINE_REPETION = 155,
 185   G_REGEX_ERROR_INCONSISTENT_NEWLINE_OPTIONS = 156,
 186   G_REGEX_ERROR_MISSING_BACK_REFERENCE = 157,
 187   G_REGEX_ERROR_INVALID_RELATIVE_REFERENCE = 158,
 188   G_REGEX_ERROR_BACKTRACKING_CONTROL_VERB_ARGUMENT_FORBIDDEN = 159,
 189   G_REGEX_ERROR_UNKNOWN_BACKTRACKING_CONTROL_VERB  = 160,
 190   G_REGEX_ERROR_NUMBER_TOO_BIG = 161,
 191   G_REGEX_ERROR_MISSING_SUBPATTERN_NAME = 162,
 192   G_REGEX_ERROR_MISSING_DIGIT = 163,
 193   G_REGEX_ERROR_INVALID_DATA_CHARACTER = 164,
 194   G_REGEX_ERROR_EXTRA_SUBPATTERN_NAME = 165,
 195   G_REGEX_ERROR_BACKTRACKING_CONTROL_VERB_ARGUMENT_REQUIRED = 166,
 196   G_REGEX_ERROR_INVALID_CONTROL_CHAR = 168,
 197   G_REGEX_ERROR_MISSING_NAME = 169,
 198   G_REGEX_ERROR_NOT_SUPPORTED_IN_CLASS = 171,
 199   G_REGEX_ERROR_TOO_MANY_FORWARD_REFERENCES = 172,
 200   G_REGEX_ERROR_NAME_TOO_LONG = 175,
 201   G_REGEX_ERROR_CHARACTER_VALUE_TOO_LARGE = 176
 202 } GRegexError;
 203
 204 /**
 205  * G_REGEX_ERROR:
 206  *
 207  * Error domain for regular expressions. Errors in this domain will be
 208  * from the #GRegexError enumeration. See #GError for information on
 209  * error domains.
 210  *
 211  * Since: 2.14
 212  */
 213 #define G_REGEX_ERROR g_regex_error_quark ()
 214
 215 GLIB_AVAILABLE_IN_ALL
 216 GQuark g_regex_error_quark (void);
 217
 218 /**
 219  * GRegexCompileFlags:
 220  * @G_REGEX_CASELESS: Letters in the pattern match both upper- and
 221  *     lowercase letters. This option can be changed within a pattern
 222  *     by a "(?i)" option setting.
 223  * @G_REGEX_MULTILINE: By default, GRegex treats the strings as consisting
 224  *     of a single line of characters (even if it actually contains
 225  *     newlines). The "start of line" metacharacter ("^") matches only
 226  *     at the start of the string, while the "end of line" metacharacter
 227  *     ("$") matches only at the end of the string, or before a terminating
 228  *     newline (unless #G_REGEX_DOLLAR_ENDONLY is set). When
 229  *     #G_REGEX_MULTILINE is set, the "start of line" and "end of line"
 230  *     constructs match immediately following or immediately before any
 231  *     newline in the string, respectively, as well as at the very start
 232  *     and end. This can be changed within a pattern by a "(?m)" option
 233  *     setting.
 234  * @G_REGEX_DOTALL: A dot metacharater (".") in the pattern matches all
 235  *     characters, including newlines. Without it, newlines are excluded.
 236  *     This option can be changed within a pattern by a ("?s") option setting.
 237  * @G_REGEX_EXTENDED: Whitespace data characters in the pattern are
 238  *     totally ignored except when escaped or inside a character class.
 239  *     Whitespace does not include the VT character (code 11). In addition,
 240  *     characters between an unescaped "#" outside a character class and
 241  *     the next newline character, inclusive, are also ignored. This can
 242  *     be changed within a pattern by a "(?x)" option setting.
 243  * @G_REGEX_ANCHORED: The pattern is forced to be "anchored", that is,
 244  *     it is constrained to match only at the first matching point in the
 245  *     string that is being searched. This effect can also be achieved by
 246  *     appropriate constructs in the pattern itself such as the "^"
 247  *     metacharater.
 248  * @G_REGEX_DOLLAR_ENDONLY: A dollar metacharacter ("$") in the pattern
 249  *     matches only at the end of the string. Without this option, a
 250  *     dollar also matches immediately before the final character if
 251  *     it is a newline (but not before any other newlines). This option
 252  *     is ignored if #G_REGEX_MULTILINE is set.
 253  * @G_REGEX_UNGREEDY: Inverts the "greediness" of the quantifiers so that
 254  *     they are not greedy by default, but become greedy if followed by "?".
 255  *     It can also be set by a "(?U)" option setting within the pattern.
 256  * @G_REGEX_RAW: Usually strings must be valid UTF-8 strings, using this
 257  *     flag they are considered as a raw sequence of bytes.
 258  * @G_REGEX_NO_AUTO_CAPTURE: Disables the use of numbered capturing
 259  *     parentheses in the pattern. Any opening parenthesis that is not
 260  *     followed by "?" behaves as if it were followed by "?:" but named
 261  *     parentheses can still be used for capturing (and they acquire numbers
 262  *     in the usual way).
 263  * @G_REGEX_OPTIMIZE: Optimize the regular expression. If the pattern will
 264  *     be used many times, then it may be worth the effort to optimize it
 265  *     to improve the speed of matches.
 266  * @G_REGEX_FIRSTLINE: Limits an unanchored pattern to match before (or at) the
 267  *     first newline. Since: 2.34
 268  * @G_REGEX_DUPNAMES: Names used to identify capturing subpatterns need not
 269  *     be unique. This can be helpful for certain types of pattern when it
 270  *     is known that only one instance of the named subpattern can ever be
 271  *     matched.
 272  * @G_REGEX_NEWLINE_CR: Usually any newline character or character sequence is
 273  *     recognized. If this option is set, the only recognized newline character
 274  *     is '\r'.
 275  * @G_REGEX_NEWLINE_LF: Usually any newline character or character sequence is
 276  *     recognized. If this option is set, the only recognized newline character
 277  *     is '\n'.
 278  * @G_REGEX_NEWLINE_CRLF: Usually any newline character or character sequence is
 279  *     recognized. If this option is set, the only recognized newline character
 280  *     sequence is '\r\n'.
 281  * @G_REGEX_NEWLINE_ANYCRLF: Usually any newline character or character sequence
 282  *     is recognized. If this option is set, the only recognized newline character
 283  *     sequences are '\r', '\n', and '\r\n'. Since: 2.34
 284  * @G_REGEX_BSR_ANYCRLF: Usually any newline character or character sequence
 285  *     is recognised. If this option is set, then "\R" only recognizes the newline
 286  *    characters '\r', '\n' and '\r\n'. Since: 2.34
 287  * @G_REGEX_JAVASCRIPT_COMPAT: Changes behaviour so that it is compatible with
 288  *     JavaScript rather than PCRE. Since: 2.34
 289  *
 290  * Flags specifying compile-time options.
 291  *
 292  * Since: 2.14
 293  */
 294 /* Remember to update G_REGEX_COMPILE_MASK in gregex.c after
 295  * adding a new flag. */
 296 typedef enum
 297 {
 298   G_REGEX_CASELESS          = 1 << 0,
 299   G_REGEX_MULTILINE         = 1 << 1,
 300   G_REGEX_DOTALL            = 1 << 2,
 301   G_REGEX_EXTENDED          = 1 << 3,
 302   G_REGEX_ANCHORED          = 1 << 4,
 303   G_REGEX_DOLLAR_ENDONLY    = 1 << 5,
 304   G_REGEX_UNGREEDY          = 1 << 9,
 305   G_REGEX_RAW               = 1 << 11,
 306   G_REGEX_NO_AUTO_CAPTURE   = 1 << 12,
 307   G_REGEX_OPTIMIZE          = 1 << 13,
 308   G_REGEX_FIRSTLINE         = 1 << 18,
 309   G_REGEX_DUPNAMES          = 1 << 19,
 310   G_REGEX_NEWLINE_CR        = 1 << 20,
 311   G_REGEX_NEWLINE_LF        = 1 << 21,
 312   G_REGEX_NEWLINE_CRLF      = G_REGEX_NEWLINE_CR | G_REGEX_NEWLINE_LF,
 313   G_REGEX_NEWLINE_ANYCRLF   = G_REGEX_NEWLINE_CR | 1 << 22,
 314   G_REGEX_BSR_ANYCRLF       = 1 << 23,
 315   G_REGEX_JAVASCRIPT_COMPAT = 1 << 25
 316 } GRegexCompileFlags;
 317
 318 /**
 319  * GRegexMatchFlags:
 320  * @G_REGEX_MATCH_ANCHORED: The pattern is forced to be "anchored", that is,
 321  *     it is constrained to match only at the first matching point in the
 322  *     string that is being searched. This effect can also be achieved by
 323  *     appropriate constructs in the pattern itself such as the "^"
 324  *     metacharater.
 325  * @G_REGEX_MATCH_NOTBOL: Specifies that first character of the string is
 326  *     not the beginning of a line, so the circumflex metacharacter should
 327  *     not match before it. Setting this without #G_REGEX_MULTILINE (at
 328  *     compile time) causes circumflex never to match. This option affects
 329  *     only the behaviour of the circumflex metacharacter, it does not
 330  *     affect "\A".
 331  * @G_REGEX_MATCH_NOTEOL: Specifies that the end of the subject string is
 332  *     not the end of a line, so the dollar metacharacter should not match
 333  *     it nor (except in multiline mode) a newline immediately before it.
 334  *     Setting this without #G_REGEX_MULTILINE (at compile time) causes
 335  *     dollar never to match. This option affects only the behaviour of
 336  *     the dollar metacharacter, it does not affect "\Z" or "\z".
 337  * @G_REGEX_MATCH_NOTEMPTY: An empty string is not considered to be a valid
 338  *     match if this option is set. If there are alternatives in the pattern,
 339  *     they are tried. If all the alternatives match the empty string, the
 340  *     entire match fails. For example, if the pattern "a?b?" is applied to
 341  *     a string not beginning with "a" or "b", it matches the empty string
 342  *     at the start of the string. With this flag set, this match is not
 343  *     valid, so GRegex searches further into the string for occurrences
 344  *     of "a" or "b".
 345  * @G_REGEX_MATCH_PARTIAL: Turns on the partial matching feature, for more
 346  *     documentation on partial matching see g_match_info_is_partial_match().
 347  * @G_REGEX_MATCH_NEWLINE_CR: Overrides the newline definition set when
 348  *     creating a new #GRegex, setting the '\r' character as line terminator.
 349  * @G_REGEX_MATCH_NEWLINE_LF: Overrides the newline definition set when
 350  *     creating a new #GRegex, setting the '\n' character as line terminator.
 351  * @G_REGEX_MATCH_NEWLINE_CRLF: Overrides the newline definition set when
 352  *     creating a new #GRegex, setting the '\r\n' characters sequence as line terminator.
 353  * @G_REGEX_MATCH_NEWLINE_ANY: Overrides the newline definition set when
 354  *     creating a new #GRegex, any Unicode newline sequence
 355  *     is recognised as a newline. These are '\r', '\n' and '\rn', and the
 356  *     single characters U+000B LINE TABULATION, U+000C FORM FEED (FF),
 357  *     U+0085 NEXT LINE (NEL), U+2028 LINE SEPARATOR and
 358  *     U+2029 PARAGRAPH SEPARATOR.
 359  * @G_REGEX_MATCH_NEWLINE_ANYCRLF: Overrides the newline definition set when
 360  *     creating a new #GRegex; any '\r', '\n', or '\r\n' character sequence
 361  *     is recognized as a newline. Since: 2.34
 362  * @G_REGEX_MATCH_BSR_ANYCRLF: Overrides the newline definition for "\R" set when
 363  *     creating a new #GRegex; only '\r', '\n', or '\r\n' character sequences
 364  *     are recognized as a newline by "\R". Since: 2.34
 365  * @G_REGEX_MATCH_BSR_ANY: Overrides the newline definition for "\R" set when
 366  *     creating a new #GRegex; any Unicode newline character or character sequence
 367  *     are recognized as a newline by "\R". These are '\r', '\n' and '\rn', and the
 368  *     single characters U+000B LINE TABULATION, U+000C FORM FEED (FF),
 369  *     U+0085 NEXT LINE (NEL), U+2028 LINE SEPARATOR and
 370  *     U+2029 PARAGRAPH SEPARATOR. Since: 2.34
 371  * @G_REGEX_MATCH_PARTIAL_SOFT: An alias for #G_REGEX_MATCH_PARTIAL. Since: 2.34
 372  * @G_REGEX_MATCH_PARTIAL_HARD: Turns on the partial matching feature. In contrast to
 373  *     to #G_REGEX_MATCH_PARTIAL_SOFT, this stops matching as soon as a partial match
 374  *     is found, without continuing to search for a possible complete match. See
 375  *     g_match_info_is_partial_match() for more information. Since: 2.34
 376  * @G_REGEX_MATCH_NOTEMPTY_ATSTART: Like #G_REGEX_MATCH_NOTEMPTY, but only applied to
 377  *     the start of the matched string. For anchored
 378  *     patterns this can only happen for pattern containing "\K". Since: 2.34
 379  *
 380  * Flags specifying match-time options.
 381  *
 382  * Since: 2.14
 383  */
 384 /* Remember to update G_REGEX_MATCH_MASK in gregex.c after
 385  * adding a new flag. */
 386 typedef enum
 387 {
 388   G_REGEX_MATCH_ANCHORED         = 1 << 4,
 389   G_REGEX_MATCH_NOTBOL           = 1 << 7,
 390   G_REGEX_MATCH_NOTEOL           = 1 << 8,
 391   G_REGEX_MATCH_NOTEMPTY         = 1 << 10,
 392   G_REGEX_MATCH_PARTIAL          = 1 << 15,
 393   G_REGEX_MATCH_NEWLINE_CR       = 1 << 20,
 394   G_REGEX_MATCH_NEWLINE_LF       = 1 << 21,
 395   G_REGEX_MATCH_NEWLINE_CRLF     = G_REGEX_MATCH_NEWLINE_CR | G_REGEX_MATCH_NEWLINE_LF,
 396   G_REGEX_MATCH_NEWLINE_ANY      = 1 << 22,
 397   G_REGEX_MATCH_NEWLINE_ANYCRLF  = G_REGEX_MATCH_NEWLINE_CR | G_REGEX_MATCH_NEWLINE_ANY,
 398   G_REGEX_MATCH_BSR_ANYCRLF      = 1 << 23,
 399   G_REGEX_MATCH_BSR_ANY          = 1 << 24,
 400   G_REGEX_MATCH_PARTIAL_SOFT     = G_REGEX_MATCH_PARTIAL,
 401   G_REGEX_MATCH_PARTIAL_HARD     = 1 << 27,
 402   G_REGEX_MATCH_NOTEMPTY_ATSTART = 1 << 28
 403 } GRegexMatchFlags;
 404
 405 /**
 406  * GRegex:
 407  *
 408  * A GRegex is the "compiled" form of a regular expression pattern. This
 409  * structure is opaque and its fields cannot be accessed directly.
 410  *
 411  * Since: 2.14
 412  */
 413 typedef struct _GRegex          GRegex;
 414
 415
 416 typedef struct _GMatchInfo      GMatchInfo;
 417
 418 /**
 419  * GRegexEvalCallback:
 420  * @match_info: the #GMatchInfo generated by the match.
 421  *     Use g_match_info_get_regex() and g_match_info_get_string() if you
 422  *     need the #GRegex or the matched string.
 423  * @result: a #GString containing the new string
 424  * @user_data: user data passed to g_regex_replace_eval()
 425  *
 426  * Specifies the type of the function passed to g_regex_replace_eval().
 427  * It is called for each occurrence of the pattern in the string passed
 428  * to g_regex_replace_eval(), and it should append the replacement to
 429  * @result.
 430  *
 431  * Returns: %FALSE to continue the replacement process, %TRUE to stop it
 432  *
 433  * Since: 2.14
 434  */
 435 typedef gboolean (*GRegexEvalCallback)          (const GMatchInfo *match_info,
 436                                                  GString          *result,
 437                                                  gpointer          user_data);
 438
 439
 440 GLIB_AVAILABLE_IN_ALL
 441 GRegex           *g_regex_new                   (const gchar         *pattern,
 442                                                  GRegexCompileFlags   compile_options,
 443                                                  GRegexMatchFlags     match_options,
 444                                                  GError             **error);
 445 GLIB_AVAILABLE_IN_ALL
 446 GRegex           *g_regex_ref                   (GRegex              *regex);
 447 GLIB_AVAILABLE_IN_ALL
 448 void              g_regex_unref                 (GRegex              *regex);
 449 GLIB_AVAILABLE_IN_ALL
 450 const gchar      *g_regex_get_pattern           (const GRegex        *regex);
 451 GLIB_AVAILABLE_IN_ALL
 452 gint              g_regex_get_max_backref       (const GRegex        *regex);
 453 GLIB_AVAILABLE_IN_ALL
 454 gint              g_regex_get_capture_count     (const GRegex        *regex);
 455 GLIB_AVAILABLE_IN_ALL
 456 gboolean          g_regex_get_has_cr_or_lf      (const GRegex        *regex);
 457 GLIB_AVAILABLE_IN_2_38
 458 gint              g_regex_get_max_lookbehind    (const GRegex        *regex);
 459 GLIB_AVAILABLE_IN_ALL
 460 gint              g_regex_get_string_number     (const GRegex        *regex,
 461                                                  const gchar         *name);
 462 GLIB_AVAILABLE_IN_ALL
 463 gchar            *g_regex_escape_string         (const gchar         *string,
 464                                                  gint                 length);
 465 GLIB_AVAILABLE_IN_ALL
 466 gchar            *g_regex_escape_nul            (const gchar         *string,
 467                                                  gint                 length);
 468
 469 GLIB_AVAILABLE_IN_ALL
 470 GRegexCompileFlags g_regex_get_compile_flags    (const GRegex        *regex);
 471 GLIB_AVAILABLE_IN_ALL
 472 GRegexMatchFlags   g_regex_get_match_flags      (const GRegex        *regex);
 473
 474 /* Matching. */
 475 GLIB_AVAILABLE_IN_ALL
 476 gboolean          g_regex_match_simple          (const gchar         *pattern,
 477                                                  const gchar         *string,
 478                                                  GRegexCompileFlags   compile_options,
 479                                                  GRegexMatchFlags     match_options);
 480 GLIB_AVAILABLE_IN_ALL
 481 gboolean          g_regex_match                 (const GRegex        *regex,
 482                                                  const gchar         *string,
 483                                                  GRegexMatchFlags     match_options,
 484                                                  GMatchInfo         **match_info);
 485 GLIB_AVAILABLE_IN_ALL
 486 gboolean          g_regex_match_full            (const GRegex        *regex,
 487                                                  const gchar         *string,
 488                                                  gssize               string_len,
 489                                                  gint                 start_position,
 490                                                  GRegexMatchFlags     match_options,
 491                                                  GMatchInfo         **match_info,
 492                                                  GError             **error);
 493 GLIB_AVAILABLE_IN_ALL
 494 gboolean          g_regex_match_all             (const GRegex        *regex,
 495                                                  const gchar         *string,
 496                                                  GRegexMatchFlags     match_options,
 497                                                  GMatchInfo         **match_info);
 498 GLIB_AVAILABLE_IN_ALL
 499 gboolean          g_regex_match_all_full        (const GRegex        *regex,
 500                                                  const gchar         *string,
 501                                                  gssize               string_len,
 502                                                  gint                 start_position,
 503                                                  GRegexMatchFlags     match_options,
 504                                                  GMatchInfo         **match_info,
 505                                                  GError             **error);
 506
 507 /* String splitting. */
 508 GLIB_AVAILABLE_IN_ALL
 509 gchar           **g_regex_split_simple          (const gchar         *pattern,
 510                                                  const gchar         *string,
 511                                                  GRegexCompileFlags   compile_options,
 512                                                  GRegexMatchFlags     match_options);
 513 GLIB_AVAILABLE_IN_ALL
 514 gchar           **g_regex_split                 (const GRegex        *regex,
 515                                                  const gchar         *string,
 516                                                  GRegexMatchFlags     match_options);
 517 GLIB_AVAILABLE_IN_ALL
 518 gchar           **g_regex_split_full            (const GRegex        *regex,
 519                                                  const gchar         *string,
 520                                                  gssize               string_len,
 521                                                  gint                 start_position,
 522                                                  GRegexMatchFlags     match_options,
 523                                                  gint                 max_tokens,
 524                                                  GError             **error);
 525
 526 /* String replacement. */
 527 GLIB_AVAILABLE_IN_ALL
 528 gchar            *g_regex_replace               (const GRegex        *regex,
 529                                                  const gchar         *string,
 530                                                  gssize               string_len,
 531                                                  gint                 start_position,
 532                                                  const gchar         *replacement,
 533                                                  GRegexMatchFlags     match_options,
 534                                                  GError             **error);
 535 GLIB_AVAILABLE_IN_ALL
 536 gchar            *g_regex_replace_literal       (const GRegex        *regex,
 537                                                  const gchar         *string,
 538                                                  gssize               string_len,
 539                                                  gint                 start_position,
 540                                                  const gchar         *replacement,
 541                                                  GRegexMatchFlags     match_options,
 542                                                  GError             **error);
 543 GLIB_AVAILABLE_IN_ALL
 544 gchar            *g_regex_replace_eval          (const GRegex        *regex,
 545                                                  const gchar         *string,
 546                                                  gssize               string_len,
 547                                                  gint                 start_position,
 548                                                  GRegexMatchFlags     match_options,
 549                                                  GRegexEvalCallback   eval,
 550                                                  gpointer             user_data,
 551                                                  GError             **error);
 552 GLIB_AVAILABLE_IN_ALL
 553 gboolean          g_regex_check_replacement     (const gchar         *replacement,
 554                                                  gboolean            *has_references,
 555                                                  GError             **error);
 556
 557 /* Match info */
 558 GLIB_AVAILABLE_IN_ALL
 559 GRegex           *g_match_info_get_regex        (const GMatchInfo    *match_info);
 560 GLIB_AVAILABLE_IN_ALL
 561 const gchar      *g_match_info_get_string       (const GMatchInfo    *match_info);
 562
 563 GLIB_AVAILABLE_IN_ALL
 564 GMatchInfo       *g_match_info_ref              (GMatchInfo          *match_info);
 565 GLIB_AVAILABLE_IN_ALL
 566 void              g_match_info_unref            (GMatchInfo          *match_info);
 567 GLIB_AVAILABLE_IN_ALL
 568 void              g_match_info_free             (GMatchInfo          *match_info);
 569 GLIB_AVAILABLE_IN_ALL
 570 gboolean          g_match_info_next             (GMatchInfo          *match_info,
 571                                                  GError             **error);
 572 GLIB_AVAILABLE_IN_ALL
 573 gboolean          g_match_info_matches          (const GMatchInfo    *match_info);
 574 GLIB_AVAILABLE_IN_ALL
 575 gint              g_match_info_get_match_count  (const GMatchInfo    *match_info);
 576 GLIB_AVAILABLE_IN_ALL
 577 gboolean          g_match_info_is_partial_match (const GMatchInfo    *match_info);
 578 GLIB_AVAILABLE_IN_ALL
 579 gchar            *g_match_info_expand_references(const GMatchInfo    *match_info,
 580                                                  const gchar         *string_to_expand,
 581                                                  GError             **error);
 582 GLIB_AVAILABLE_IN_ALL
 583 gchar            *g_match_info_fetch            (const GMatchInfo    *match_info,
 584                                                  gint                 match_num);
 585 GLIB_AVAILABLE_IN_ALL
 586 gboolean          g_match_info_fetch_pos        (const GMatchInfo    *match_info,
 587                                                  gint                 match_num,
 588                                                  gint                *start_pos,
 589                                                  gint                *end_pos);
 590 GLIB_AVAILABLE_IN_ALL
 591 gchar            *g_match_info_fetch_named      (const GMatchInfo    *match_info,
 592                                                  const gchar         *name);
 593 GLIB_AVAILABLE_IN_ALL
 594 gboolean          g_match_info_fetch_named_pos  (const GMatchInfo    *match_info,
 595                                                  const gchar         *name,
 596                                                  gint                *start_pos,
 597                                                  gint                *end_pos);
 598 GLIB_AVAILABLE_IN_ALL
 599 gchar           **g_match_info_fetch_all        (const GMatchInfo    *match_info);
 600
 601 G_END_DECLS
 602
 603 #endif  /*  __G_REGEX_H__ */