scummvm/engines/grim/textsplit.h
2009-05-24 18:55:19 +00:00

84 lines
2.5 KiB
C++

/* Residual - Virtual machine to run LucasArts' 3D adventure games
*
* Residual is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* file distributed with this source distribution.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* $URL$
* $Id$
*
*/
#ifndef TEXTSPLIT_HH
#define TEXTSPLIT_HH
// A utility class to help in parsing the text-format files. Splits
// the text data into lines, skipping comments, trailing whitespace,
// and empty lines. Also folds everything to lowercase.
class TextSplitter {
public:
TextSplitter(const char *data, int len);
char *nextLine() {
processLine();
return _currLine;
}
char *currentLine() { return _currLine; }
const char *currentLine() const { return _currLine; }
bool eof() const { return _lineIndex == _numLines; }
int getLineNumber() { return _lineIndex; }
void setLineNumber(int line) { _lineIndex = line - 1; processLine(); }
// Check if the current line contains 'needle'
bool checkString(const char *needle);
// Expect a certain fixed string; bail out with an error if not
// found. Advance to the next line.
void expectString(const char *expected);
// Scan a line according to the given format (compatible with
// scanf); if not all fields are read (according to the field_count
// argument), bail out with an error. Advance to the next line.
void scanString(const char *fmt, int field_count, ...);
class TextLines {
public:
TextLines() {};
~TextLines() { delete[] _lineData; }
void setData(char *data, int length);
char *getData() { return _lineData; }
protected:
char *_lineData;
int _lineLength;
friend class TextSplitter;
};
~TextSplitter() { delete[] _lines; }
private:
char *_currLine;
int _numLines, _lineIndex;
TextLines *_lines;
void processLine();
};
#endif