scummvm/textsplit.h

66 lines
2.1 KiB
C++

// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef TEXTSPLIT_HH
#define TEXTSPLIT_HH
#include <cstdlib>
// 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() {
curr_line_ = next_line_;
processLine();
return curr_line_;
}
char *currentLine() { return curr_line_; }
const char *currentLine() const { return curr_line_; }
bool eof() const { return curr_line_ == NULL; }
// Check if the current line contains 'needle'
bool TextSplitter::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, ...)
#ifdef __GNUC__
__attribute__((format (scanf, 2, 4)))
#endif
;
~TextSplitter() { delete[] data_; }
private:
char *data_, *curr_line_, *next_line_;
void processLine();
};
#endif