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regexp.h
1 // -*- c-basic-offset: 2 -*-
2 /*
3  * This file is part of the KDE libraries
4  * Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) 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 GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  *
20  */
21 
22 #ifndef _KJS_REGEXP_H_
23 #define _KJS_REGEXP_H_
24 
25 #include <sys/types.h>
26 
27 #include "config.h"
28 
29 #ifdef HAVE_PCREPOSIX
30 #include <pcre.h>
31 #else // POSIX regex - not so good...
32 extern "C" { // bug with some libc5 distributions
33 #include <regex.h>
34 }
35 #endif //HAVE_PCREPOSIX
36 
37 #include "ustring.h"
38 
39 namespace KJS {
40 
41  class RegExp {
42  public:
43  enum { None = 0, Global = 1, IgnoreCase = 2, Multiline = 4 };
44  RegExp(const UString &p, int f = None);
45  ~RegExp();
46  int flags() const { return flgs; }
47  UString pattern() const { return pat; }
48  bool isValid() const { return valid; }
49  UString match(const UString &s, int i, int *pos = 0, int **ovector = 0);
50  // test is unused. The JS spec says that RegExp.test should use
51  // RegExp.exec, so it has to store $1 etc.
52  // bool test(const UString &s, int i = -1);
53  unsigned int subPatterns() const { return nrSubPatterns; }
54 
55  //These methods should be called around the match of the same string..
56  void prepareMatch(const UString &s);
57  void doneMatch();
58  private:
59  const UString pat;
60  int flgs : 8;
61  bool m_notEmpty;
62  bool valid;
63 
64  // Cached encoding info...
65  char* buffer;
66  int* originalPos;
67  int bufferSize;
68 
69  void prepareUtf8 (const UString& s);
70  void prepareASCII (const UString& s);
71 #ifndef NDEBUG
72  UString originalS; // the original string, used for sanity-checking
73 #endif
74 
75 #ifndef HAVE_PCREPOSIX
76  regex_t preg;
77 #else
78  pcre *pcregex;
79 
80  enum UTF8SupportState {
81  Unknown,
82  Supported,
83  Unsupported
84  };
85 
86 #ifdef PCRE_CONFIG_UTF8
87  static UTF8SupportState utf8Support;
88 #endif
89 #endif
90  unsigned int nrSubPatterns;
91 
92  RegExp();
93  };
94 
95 } // namespace
96 
97 #endif
KJS
Definition: array_instance.h:28

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