Category : OS/2 Files
Archive   : GPPDEV8F.ZIP
Filename : REGX.H

// This may look like C code, but it is really -*- C++ -*-
/*
Copyright (C) 1988 Free Software Foundation
written by Doug Lea ([email protected])

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, 675 Mass Ave, Cambridge, MA 02139, USA.
*/


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

#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 Regex
{
private:

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

protected:
re_pattern_buffer* buf;
re_registers* reg;

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

~Regex();

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


#endif