MNRegex.h

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// This may look like C code, but it is really -*- C++ -*-
/* 
Copyright (C) 1988 Free Software Foundation
    written by Doug Lea (dl@rocky.oswego.edu)

This file is part of the GNU C++ Library.  This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/



#ifndef _MNRegex_h
#ifdef __GNUG__
#pragma interface
#endif
#define _MNRegex_h 1

#undef OK

#if defined(SHORT_NAMES) || defined(VMS)
#define re_compile_pattern      recmppat
#define re_pattern_buffer       repatbuf
#define re_registers            reregs
#endif

struct re_pattern_buffer;       // defined elsewhere
struct re_registers;

class MNRegex
{
private:

                     MNRegex(const MNRegex&) {}  // no X(X&)
  void               operator = (const MNRegex&) {} // no assignment

protected:
  re_pattern_buffer* buf;
  re_registers*      reg;

public:
                     MNRegex(const char* t, 
                           int fast = 0, 
                           int bufsize = 40, 
                           const char* transtable = 0);

                    ~MNRegex();

  int                match(const char* s, int len, int pos = 0) const;
  int                search(const char* s, int len, 
                            int& matchlen, int startpos = 0) const;
  int                match_info(int& start, int& length, int nth = 0) const;

  int                OK() const;  // representation invariant
};

// some built in regular expressions

extern const MNRegex RXwhite;          // = "[ \n\t\r\v\f]+"
extern const MNRegex RXint;            // = "-?[0-9]+"
extern const MNRegex RXdouble;         // = "-?\\(\\([0-9]+\\.[0-9]*\\)\\|
                                     //    \\([0-9]+\\)\\|\\(\\.[0-9]+\\)\\)
                                     //    \\([eE][---+]?[0-9]+\\)?"
extern const MNRegex RXalpha;          // = "[A-Za-z]+"
extern const MNRegex RXlowercase;      // = "[a-z]+"
extern const MNRegex RXuppercase;      // = "[A-Z]+"
extern const MNRegex RXalphanum;       // = "[0-9A-Za-z]+"
extern const MNRegex RXidentifier;     // = "[A-Za-z_][A-Za-z0-9_]*"


#endif

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