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https://github.com/libretro/scummvm.git
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87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef GRIM_TEXTSPLIT_HH
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#define GRIM_TEXTSPLIT_HH
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namespace Common {
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class SeekableReadStream;
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}
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namespace Grim {
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// A utility class to help in parsing the text-format files. Splits
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// the text data into lines, skipping comments, trailing whitespace,
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// and empty lines. Also folds everything to lowercase.
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class TextSplitter {
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public:
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TextSplitter(const Common::String &fname, Common::SeekableReadStream *data);
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~TextSplitter();
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char *nextLine() {
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processLine();
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return _currLine;
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}
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char *getCurrentLine() { return _currLine; }
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const char *getCurrentLine() const { return _currLine; }
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bool isEof() const { return _lineIndex == _numLines; }
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int getLineNumber() { return _lineIndex; }
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void setLineNumber(int line) { _lineIndex = line - 1; processLine(); }
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// Check if the current line contains 'needle'
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bool checkString(const char *needle);
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// Expect a certain fixed string; bail out with an error if not
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// found. Advance to the next line.
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void expectString(const char *expected);
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// Scan a line according to the given format (compatible with
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// scanf); if not all fields are read (according to the field_count
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// argument), bail out with an error. Advance to the next line.
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void scanString(const char *fmt, int field_count, ...);
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// Scan a line starting at offset 'offset' according to the given format
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// (compatible with scanf); if not all fields are read (according to the
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// field_count argument), bail out with an error. Advance to the next line.
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void scanStringAtOffset(int offset, const char *fmt, int field_count, ...);
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// Just like scanString(), but without advancing to the next line.
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void scanStringNoNewLine(const char *fmt, int field_count, ...);
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// Just like scanStringAtOffset(), but without advancing to the next line.
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void scanStringAtOffsetNoNewLine(int offset, const char *fmt, int field_count, ...);
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private:
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Common::String _fname;
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char *_stringData;
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char *_currLine;
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int _numLines, _lineIndex;
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char **_lines;
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void processLine();
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};
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} // end of namespace Grim
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#endif
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