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// class template regex -*- C++ -*-
 
// Copyright (C) 2010, 2011 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
 
// This 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 General Public License for more details.
 
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
 
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.
 
/**
 *  @file bits/regex_constants.h
 *  @brief Constant definitions for the std regex library.
 *
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{regex}
 */
 
namespace std _GLIBCXX_VISIBILITY(default)
{
/**
 * @namespace std::regex_constants
 * @brief ISO C++-0x entities sub namespace for regex.
 */
namespace regex_constants
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
 
  /**
   * @name 5.1 Regular Expression Syntax Options
   */
  //@{
  enum __syntax_option
    {
      _S_icase,
      _S_nosubs,
      _S_optimize,
      _S_collate,
      _S_ECMAScript,
      _S_basic,
      _S_extended,
      _S_awk,
      _S_grep,
      _S_egrep,
      _S_syntax_last
    };
 
  /**
   * @brief This is a bitmask type indicating how to interpret the regex.
   *
   * The @c syntax_option_type is implementation defined but it is valid to
   * perform bitwise operations on these values and expect the right thing to
   * happen.
   *
   * A valid value of type syntax_option_type shall have exactly one of the
   * elements @c ECMAScript, @c basic, @c extended, @c awk, @c grep, @c egrep
   * %set.
   */
  typedef unsigned int syntax_option_type;
 
  /**
   * Specifies that the matching of regular expressions against a character
   * sequence shall be performed without regard to case.
   */
  static constexpr syntax_option_type icase      = 1 << _S_icase;
 
  /**
   * Specifies that when a regular expression is matched against a character
   * container sequence, no sub-expression matches are to be stored in the
   * supplied match_results structure.
   */
  static constexpr syntax_option_type nosubs     = 1 << _S_nosubs;
 
  /**
   * Specifies that the regular expression engine should pay more attention to
   * the speed with which regular expressions are matched, and less to the
   * speed with which regular expression objects are constructed. Otherwise
   * it has no detectable effect on the program output.
   */
  static constexpr syntax_option_type optimize   = 1 << _S_optimize;
 
  /**
   * Specifies that character ranges of the form [a-b] should be locale
   * sensitive.
   */
  static constexpr syntax_option_type collate    = 1 << _S_collate;
 
  /**
   * Specifies that the grammar recognized by the regular expression engine is
   * that used by ECMAScript in ECMA-262 [Ecma International, ECMAScript
   * Language Specification, Standard Ecma-262, third edition, 1999], as
   * modified in section [28.13].  This grammar is similar to that defined
   * in the PERL scripting language but extended with elements found in the
   * POSIX regular expression grammar.
   */
  static constexpr syntax_option_type ECMAScript = 1 << _S_ECMAScript;
 
  /**
   * Specifies that the grammar recognized by the regular expression engine is
   * that used by POSIX basic regular expressions in IEEE Std 1003.1-2001,
   * Portable Operating System Interface (POSIX), Base Definitions and
   * Headers, Section 9, Regular Expressions [IEEE, Information Technology --
   * Portable Operating System Interface (POSIX), IEEE Standard 1003.1-2001].
   */
  static constexpr syntax_option_type basic      = 1 << _S_basic;
 
  /**
   * Specifies that the grammar recognized by the regular expression engine is
   * that used by POSIX extended regular expressions in IEEE Std 1003.1-2001,
   * Portable Operating System Interface (POSIX), Base Definitions and Headers,
   * Section 9, Regular Expressions.
   */
  static constexpr syntax_option_type extended   = 1 << _S_extended;
 
  /**
   * Specifies that the grammar recognized by the regular expression engine is
   * that used by POSIX utility awk in IEEE Std 1003.1-2001.  This option is
   * identical to syntax_option_type extended, except that C-style escape
   * sequences are supported.  These sequences are:
   * \\\\, \\a, \\b, \\f, \\n, \\r, \\t , \\v, \\&apos;, &apos;,
   * and \\ddd (where ddd is one, two, or three octal digits).
   */
  static constexpr syntax_option_type awk        = 1 << _S_awk;
 
  /**
   * Specifies that the grammar recognized by the regular expression engine is
   * that used by POSIX utility grep in IEEE Std 1003.1-2001.  This option is
   * identical to syntax_option_type basic, except that newlines are treated
   * as whitespace.
   */
  static constexpr syntax_option_type grep       = 1 << _S_grep;
 
  /**
   * Specifies that the grammar recognized by the regular expression engine is
   * that used by POSIX utility grep when given the -E option in
   * IEEE Std 1003.1-2001.  This option is identical to syntax_option_type
   * extended, except that newlines are treated as whitespace.
   */
  static constexpr syntax_option_type egrep      = 1 << _S_egrep;
 
  //@}
 
  /**
   * @name 5.2 Matching Rules
   *
   * Matching a regular expression against a sequence of characters [first,
   * last) proceeds according to the rules of the grammar specified for the
   * regular expression object, modified according to the effects listed
   * below for any bitmask elements set.
   *
   */
  //@{
 
  enum __match_flag
    {
      _S_not_bol,
      _S_not_eol,
      _S_not_bow,
      _S_not_eow,
      _S_any,
      _S_not_null,
      _S_continuous,
      _S_prev_avail,
      _S_sed,
      _S_no_copy,
      _S_first_only,
      _S_match_flag_last
    };
 
  /**
   * @brief This is a bitmask type indicating regex matching rules.
   *
   * The @c match_flag_type is implementation defined but it is valid to
   * perform bitwise operations on these values and expect the right thing to
   * happen.
   */
  typedef std::bitset<_S_match_flag_last> match_flag_type;
 
  /**
   * The default matching rules.
   */
  static constexpr match_flag_type match_default     = 0;
 
  /**
   * The first character in the sequence [first, last) is treated as though it
   * is not at the beginning of a line, so the character (^) in the regular
   * expression shall not match [first, first).
   */
  static constexpr match_flag_type match_not_bol     = 1 << _S_not_bol;
 
  /**
   * The last character in the sequence [first, last) is treated as though it
   * is not at the end of a line, so the character ($) in the regular
   * expression shall not match [last, last).
   */
  static constexpr match_flag_type match_not_eol     = 1 << _S_not_eol;
 
  /**
   * The expression \\b is not matched against the sub-sequence
   * [first,first).
   */
  static constexpr match_flag_type match_not_bow     = 1 << _S_not_bow;
 
  /**
   * The expression \\b should not be matched against the sub-sequence
   * [last,last).
   */
  static constexpr match_flag_type match_not_eow     = 1 << _S_not_eow;
 
  /**
   * If more than one match is possible then any match is an acceptable
   * result.
   */
  static constexpr match_flag_type match_any         = 1 << _S_any;
 
  /**
   * The expression does not match an empty sequence.
   */
  static constexpr match_flag_type match_not_null    = 1 << _S_not_null;
 
  /**
   * The expression only matches a sub-sequence that begins at first .
   */
  static constexpr match_flag_type match_continuous  = 1 << _S_continuous;
 
  /**
   * --first is a valid iterator position.  When this flag is set then the
   * flags match_not_bol and match_not_bow are ignored by the regular
   * expression algorithms 28.11 and iterators 28.12.
   */
  static constexpr match_flag_type match_prev_avail  = 1 << _S_prev_avail;
 
  /**
   * When a regular expression match is to be replaced by a new string, the
   * new string is constructed using the rules used by the ECMAScript replace
   * function in ECMA- 262 [Ecma International, ECMAScript Language
   * Specification, Standard Ecma-262, third edition, 1999], part 15.5.4.11
   * String.prototype.replace. In addition, during search and replace
   * operations all non-overlapping occurrences of the regular expression
   * are located and replaced, and sections of the input that did not match
   * the expression are copied unchanged to the output string.
   *
   * Format strings (from ECMA-262 [15.5.4.11]):
   * @li $$  The dollar-sign itself ($)
   * @li $&  The matched substring.
   * @li $`  The portion of @a string that precedes the matched substring.
   *         This would be match_results::prefix().
   * @li $'  The portion of @a string that follows the matched substring.
   *         This would be match_results::suffix().
   * @li $n  The nth capture, where n is in [1,9] and $n is not followed by a
   *         decimal digit.  If n <= match_results::size() and the nth capture
   *         is undefined, use the empty string instead.  If n >
   *         match_results::size(), the result is implementation-defined.
   * @li $nn The nnth capture, where nn is a two-digit decimal number on
   *         [01, 99].  If nn <= match_results::size() and the nth capture is
   *         undefined, use the empty string instead. If
   *         nn > match_results::size(), the result is implementation-defined.
   */
  static constexpr match_flag_type format_default    = 0;
 
  /**
   * When a regular expression match is to be replaced by a new string, the
   * new string is constructed using the rules used by the POSIX sed utility
   * in IEEE Std 1003.1- 2001 [IEEE, Information Technology -- Portable
   * Operating System Interface (POSIX), IEEE Standard 1003.1-2001].
   */
  static constexpr match_flag_type format_sed        = 1 << _S_sed;
 
  /**
   * During a search and replace operation, sections of the character
   * container sequence being searched that do not match the regular
   * expression shall not be copied to the output string.
   */
  static constexpr match_flag_type format_no_copy    = 1 << _S_no_copy;
 
  /**
   * When specified during a search and replace operation, only the first
   * occurrence of the regular expression shall be replaced.
   */
  static constexpr match_flag_type format_first_only = 1 << _S_first_only;
 
  //@}
 
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace regex_constants
} // namespace
 

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libstdc++-v3/] [include/] [bits/] [regex_constants.h] - Blame information for rev 749

Line No.	Rev	Author	Line
1	742	jeremybenn	`// class template regex -- C++ --`
2
3			`// Copyright (C) 2010, 2011 Free Software Foundation, Inc.`
4			`//`
5			`// This file is part of the GNU ISO C++ Library. This library is free`
6			`// software; you can redistribute it and/or modify it under the`
7			`// terms of the GNU General Public License as published by the`
8			`// Free Software Foundation; either version 3, or (at your option)`
9			`// any later version.`
10
11			`// This library is distributed in the hope that it will be useful,`
12			`// but WITHOUT ANY WARRANTY; without even the implied warranty of`
13			`// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
14			`// GNU General Public License for more details.`
15
16			`// Under Section 7 of GPL version 3, you are granted additional`
17			`// permissions described in the GCC Runtime Library Exception, version`
18			`// 3.1, as published by the Free Software Foundation.`
19
20			`// You should have received a copy of the GNU General Public License and`
21			`// a copy of the GCC Runtime Library Exception along with this program;`
22			`// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see`
23			`// <http://www.gnu.org/licenses/>.`
24
25			`/**`
26			`* @file bits/regex_constants.h`
27			`* @brief Constant definitions for the std regex library.`
28			`*`
29			`* This is an internal header file, included by other library headers.`
30			`* Do not attempt to use it directly. @headername{regex}`
31			`*/`
32
33			`namespace std _GLIBCXX_VISIBILITY(default)`
34			`{`
35			`/**`
36			`* @namespace std::regex_constants`
37			`* @brief ISO C++-0x entities sub namespace for regex.`
38			`*/`
39			`namespace regex_constants`
40			`{`
41			`_GLIBCXX_BEGIN_NAMESPACE_VERSION`
42
43			`/**`
44			`* @name 5.1 Regular Expression Syntax Options`
45			`*/`
46			`//@{`
47			`enum __syntax_option`
48			`{`
49			`_S_icase,`
50			`_S_nosubs,`
51			`_S_optimize,`
52			`_S_collate,`
53			`_S_ECMAScript,`
54			`_S_basic,`
55			`_S_extended,`
56			`_S_awk,`
57			`_S_grep,`
58			`_S_egrep,`
59			`_S_syntax_last`
60			`};`
61
62			`/**`
63			`* @brief This is a bitmask type indicating how to interpret the regex.`
64			`*`
65			`* The @c syntax_option_type is implementation defined but it is valid to`
66			`* perform bitwise operations on these values and expect the right thing to`
67			`* happen.`
68			`*`
69			`* A valid value of type syntax_option_type shall have exactly one of the`
70			`* elements @c ECMAScript, @c basic, @c extended, @c awk, @c grep, @c egrep`
71			`* %set.`
72			`*/`
73			`typedef unsigned int syntax_option_type;`
74
75			`/**`
76			`* Specifies that the matching of regular expressions against a character`
77			`* sequence shall be performed without regard to case.`
78			`*/`
79			`static constexpr syntax_option_type icase = 1 << _S_icase;`
80
81			`/**`
82			`* Specifies that when a regular expression is matched against a character`
83			`* container sequence, no sub-expression matches are to be stored in the`
84			`* supplied match_results structure.`
85			`*/`
86			`static constexpr syntax_option_type nosubs = 1 << _S_nosubs;`
87
88			`/**`
89			`* Specifies that the regular expression engine should pay more attention to`
90			`* the speed with which regular expressions are matched, and less to the`
91			`* speed with which regular expression objects are constructed. Otherwise`
92			`* it has no detectable effect on the program output.`
93			`*/`
94			`static constexpr syntax_option_type optimize = 1 << _S_optimize;`
95
96			`/**`
97			`* Specifies that character ranges of the form [a-b] should be locale`
98			`* sensitive.`
99			`*/`
100			`static constexpr syntax_option_type collate = 1 << _S_collate;`
101
102			`/**`
103			`* Specifies that the grammar recognized by the regular expression engine is`
104			`* that used by ECMAScript in ECMA-262 [Ecma International, ECMAScript`
105			`* Language Specification, Standard Ecma-262, third edition, 1999], as`
106			`* modified in section [28.13]. This grammar is similar to that defined`
107			`* in the PERL scripting language but extended with elements found in the`
108			`* POSIX regular expression grammar.`
109			`*/`
110			`static constexpr syntax_option_type ECMAScript = 1 << _S_ECMAScript;`
111
112			`/**`
113			`* Specifies that the grammar recognized by the regular expression engine is`
114			`* that used by POSIX basic regular expressions in IEEE Std 1003.1-2001,`
115			`* Portable Operating System Interface (POSIX), Base Definitions and`
116			`* Headers, Section 9, Regular Expressions [IEEE, Information Technology --`
117			`* Portable Operating System Interface (POSIX), IEEE Standard 1003.1-2001].`
118			`*/`
119			`static constexpr syntax_option_type basic = 1 << _S_basic;`
120
121			`/**`
122			`* Specifies that the grammar recognized by the regular expression engine is`
123			`* that used by POSIX extended regular expressions in IEEE Std 1003.1-2001,`
124			`* Portable Operating System Interface (POSIX), Base Definitions and Headers,`
125			`* Section 9, Regular Expressions.`
126			`*/`
127			`static constexpr syntax_option_type extended = 1 << _S_extended;`
128
129			`/**`
130			`* Specifies that the grammar recognized by the regular expression engine is`
131			`* that used by POSIX utility awk in IEEE Std 1003.1-2001. This option is`
132			`* identical to syntax_option_type extended, except that C-style escape`
133			`* sequences are supported. These sequences are:`
134			`* \\\\, \\a, \\b, \\f, \\n, \\r, \\t , \\v, \\', ',`
135			`* and \\ddd (where ddd is one, two, or three octal digits).`
136			`*/`
137			`static constexpr syntax_option_type awk = 1 << _S_awk;`
138
139			`/**`
140			`* Specifies that the grammar recognized by the regular expression engine is`
141			`* that used by POSIX utility grep in IEEE Std 1003.1-2001. This option is`
142			`* identical to syntax_option_type basic, except that newlines are treated`
143			`* as whitespace.`
144			`*/`
145			`static constexpr syntax_option_type grep = 1 << _S_grep;`
146
147			`/**`
148			`* Specifies that the grammar recognized by the regular expression engine is`
149			`* that used by POSIX utility grep when given the -E option in`
150			`* IEEE Std 1003.1-2001. This option is identical to syntax_option_type`
151			`* extended, except that newlines are treated as whitespace.`
152			`*/`
153			`static constexpr syntax_option_type egrep = 1 << _S_egrep;`
154
155			`//@}`
156
157			`/**`
158			`* @name 5.2 Matching Rules`
159			`*`
160			`* Matching a regular expression against a sequence of characters [first,`
161			`* last) proceeds according to the rules of the grammar specified for the`
162			`* regular expression object, modified according to the effects listed`
163			`* below for any bitmask elements set.`
164			`*`
165			`*/`
166			`//@{`
167
168			`enum __match_flag`
169			`{`
170			`_S_not_bol,`
171			`_S_not_eol,`
172			`_S_not_bow,`
173			`_S_not_eow,`
174			`_S_any,`
175			`_S_not_null,`
176			`_S_continuous,`
177			`_S_prev_avail,`
178			`_S_sed,`
179			`_S_no_copy,`
180			`_S_first_only,`
181			`_S_match_flag_last`
182			`};`
183
184			`/**`
185			`* @brief This is a bitmask type indicating regex matching rules.`
186			`*`
187			`* The @c match_flag_type is implementation defined but it is valid to`
188			`* perform bitwise operations on these values and expect the right thing to`
189			`* happen.`
190			`*/`
191			`typedef std::bitset<_S_match_flag_last> match_flag_type;`
192
193			`/**`
194			`* The default matching rules.`
195			`*/`
196			`static constexpr match_flag_type match_default = 0;`
197
198			`/**`
199			`* The first character in the sequence [first, last) is treated as though it`
200			`* is not at the beginning of a line, so the character (^) in the regular`
201			`* expression shall not match [first, first).`
202			`*/`
203			`static constexpr match_flag_type match_not_bol = 1 << _S_not_bol;`
204
205			`/**`
206			`* The last character in the sequence [first, last) is treated as though it`
207			`* is not at the end of a line, so the character ($) in the regular`
208			`* expression shall not match [last, last).`
209			`*/`
210			`static constexpr match_flag_type match_not_eol = 1 << _S_not_eol;`
211
212			`/**`
213			`* The expression \\b is not matched against the sub-sequence`
214			`* [first,first).`
215			`*/`
216			`static constexpr match_flag_type match_not_bow = 1 << _S_not_bow;`
217
218			`/**`
219			`* The expression \\b should not be matched against the sub-sequence`
220			`* [last,last).`
221			`*/`
222			`static constexpr match_flag_type match_not_eow = 1 << _S_not_eow;`
223
224			`/**`
225			`* If more than one match is possible then any match is an acceptable`
226			`* result.`
227			`*/`
228			`static constexpr match_flag_type match_any = 1 << _S_any;`
229
230			`/**`
231			`* The expression does not match an empty sequence.`
232			`*/`
233			`static constexpr match_flag_type match_not_null = 1 << _S_not_null;`
234
235			`/**`
236			`* The expression only matches a sub-sequence that begins at first .`
237			`*/`
238			`static constexpr match_flag_type match_continuous = 1 << _S_continuous;`
239
240			`/**`
241			`* --first is a valid iterator position. When this flag is set then the`
242			`* flags match_not_bol and match_not_bow are ignored by the regular`
243			`* expression algorithms 28.11 and iterators 28.12.`
244			`*/`
245			`static constexpr match_flag_type match_prev_avail = 1 << _S_prev_avail;`
246
247			`/**`
248			`* When a regular expression match is to be replaced by a new string, the`
249			`* new string is constructed using the rules used by the ECMAScript replace`
250			`* function in ECMA- 262 [Ecma International, ECMAScript Language`
251			`* Specification, Standard Ecma-262, third edition, 1999], part 15.5.4.11`
252			`* String.prototype.replace. In addition, during search and replace`
253			`* operations all non-overlapping occurrences of the regular expression`
254			`* are located and replaced, and sections of the input that did not match`
255			`* the expression are copied unchanged to the output string.`
256			`*`
257			`* Format strings (from ECMA-262 [15.5.4.11]):`
258			`* @li $$ The dollar-sign itself ($)`
259			`* @li $& The matched substring.`
260			* @li $` The portion of @a string that precedes the matched substring.
261			`* This would be match_results::prefix().`
262			`* @li $' The portion of @a string that follows the matched substring.`
263			`* This would be match_results::suffix().`
264			`* @li $n The nth capture, where n is in [1,9] and $n is not followed by a`
265			`* decimal digit. If n <= match_results::size() and the nth capture`
266			`* is undefined, use the empty string instead. If n >`
267			`* match_results::size(), the result is implementation-defined.`
268			`* @li $nn The nnth capture, where nn is a two-digit decimal number on`
269			`* [01, 99]. If nn <= match_results::size() and the nth capture is`
270			`* undefined, use the empty string instead. If`
271			`* nn > match_results::size(), the result is implementation-defined.`
272			`*/`
273			`static constexpr match_flag_type format_default = 0;`
274
275			`/**`
276			`* When a regular expression match is to be replaced by a new string, the`
277			`* new string is constructed using the rules used by the POSIX sed utility`
278			`* in IEEE Std 1003.1- 2001 [IEEE, Information Technology -- Portable`
279			`* Operating System Interface (POSIX), IEEE Standard 1003.1-2001].`
280			`*/`
281			`static constexpr match_flag_type format_sed = 1 << _S_sed;`
282
283			`/**`
284			`* During a search and replace operation, sections of the character`
285			`* container sequence being searched that do not match the regular`
286			`* expression shall not be copied to the output string.`
287			`*/`
288			`static constexpr match_flag_type format_no_copy = 1 << _S_no_copy;`
289
290			`/**`
291			`* When specified during a search and replace operation, only the first`
292			`* occurrence of the regular expression shall be replaced.`
293			`*/`
294			`static constexpr match_flag_type format_first_only = 1 << _S_first_only;`
295
296			`//@}`
297
298			`_GLIBCXX_END_NAMESPACE_VERSION`
299			`} // namespace regex_constants`
300			`} // namespace`
301