1 // This may look like C code, but it is really -*- C++ -*- 2 /* 3 Copyright (C) 1988 Free Software Foundation 4 written by Doug Lea (dl@rocky.oswego.edu) 5 6 This file is part of the GNU C++ Library. This library is free 7 software; you can redistribute it and/or modify it under the terms of 8 the GNU Library General Public License as published by the Free 9 Software Foundation; either version 2 of the License, or (at your 10 option) any later version. This library is distributed in the hope 11 that it will be useful, but WITHOUT ANY WARRANTY; without even the 12 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 13 PURPOSE. See the GNU Library General Public License for more details. 14 You should have received a copy of the GNU Library General Public 15 License along with this library; if not, write to the Free Software 16 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 17 */ 18 19 20 #ifndef _Regex_h 21 #ifdef __GNUG__ 22 #pragma interface 23 #endif 24 #define _Regex_h 1 25 26 #if defined(SHORT_NAMES) || defined(VMS) 27 #define re_compile_pattern recmppat 28 #define re_pattern_buffer repatbuf 29 #define re_registers reregs 30 #endif 31 32 struct re_pattern_buffer; // defined elsewhere 33 struct re_registers; 34 35 class Regex 36 { 37 private: 38 39 Regex(const Regex&) {} // no X(X&) 40 void operator = (const Regex&) {} // no assignment 41 42 protected: 43 re_pattern_buffer* buf; 44 re_registers* reg; 45 46 public: 47 Regex(const char* t, 48 int fast = 0, 49 int bufsize = 40, 50 const char* transtable = 0); 51 52 ~Regex(); 53 54 int match(const char* s, int len, int pos = 0) const; 55 int search(const char* s, int len, 56 int& matchlen, int startpos = 0) const; 57 int match_info(int& start, int& length, int nth = 0) const; 58 59 int OK() const; // representation invariant 60 }; 61 62 // some built in regular expressions 63 64 extern const Regex RXwhite; // = "[ \n\t\r\v\f]+" 65 extern const Regex RXint; // = "-?[0-9]+" 66 extern const Regex RXdouble; // = "-?\\(\\([0-9]+\\.[0-9]*\\)\\| 67 // \\([0-9]+\\)\\|\\(\\.[0-9]+\\)\\) 68 // \\([eE][---+]?[0-9]+\\)?" 69 extern const Regex RXalpha; // = "[A-Za-z]+" 70 extern const Regex RXlowercase; // = "[a-z]+" 71 extern const Regex RXuppercase; // = "[A-Z]+" 72 extern const Regex RXalphanum; // = "[0-9A-Za-z]+" 73 extern const Regex RXidentifier; // = "[A-Za-z_][A-Za-z0-9_]*" 74 75 76 #endif 77