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// -*- C++ -*-
// $Id$
// Copyright (C) 1989 Free Software Foundation, Inc.
// written by Douglas C. Schmidt (schmidt@cs.wustl.edu)
// This file is part of GNU GPERF.
// This program 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 2
// of the License, or (at your option) any later version.
// This program 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.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifndef ITERATOR_H
#define ITERATOR_H
#include "ace/config-all.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "Options.h"
#if defined (ACE_HAS_GPERF)
class Iterator
{
// = TITLE
// Provides an Iterator that expands and decodes a control string
// containing digits and ranges, returning an integer every time the
// generator function is called.
//
// = DESCRIPTION
// This class is used to decode the user's key position requests.
// For example: "-k 1,2,5-10,$" will return 1, 2, 5, 6, 7, 8, 9,
// 10, and 0 ( representing the abstract ``last character of the
// key'' on successive calls to the member function operator ().
// No errors are handled in these routines, they are passed back
// to the calling routines via a user-supplied Error_Value */
public:
Iterator (char *s,
int lo,
int hi,
int word_end,
int bad_val,
int key_end);
int operator () (void);
private:
char *str;
// A pointer to the string provided by the user.
int end;
// Value returned after last key is processed.
int end_word;
// A value marking the abstract ``end of word'' (usually '$').
int error_value;
// Error value returned when input is syntactically erroneous.
int hi_bound;
// Greatest possible value, inclusive.
int lo_bound;
// Smallest possible value, inclusive.
};
#endif /* ACE_HAS_GPERF */
#endif /* ITERATOR_H */
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