Initial commit

engines/titanic/support/string_parser.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "titanic/support/string_parser.h"
+#include "common/util.h"
+
+namespace Titanic {
+
+void CStringParser::skipSeparators(const CString &separatorChars) {
+	for (; _index < size(); ++_index) {
+		char c = (*this)[_index];
+		if (separatorChars.indexOf(c) == -1)
+			break;
+	}
+}
+
+bool CStringParser::parse(CString &resultStr, const CString &separatorChars, bool allowQuotes) {
+	if (_index >= size())
+		return false;
+
+	resultStr.clear();
+	bool quoteFlag = false;
+	while (_index < size()) {
+		char c = (*this)[_index];
+		if (!quoteFlag && separatorChars.indexOf(c) >= 0)
+			break;
+
+		if (allowQuotes) {
+			if (quoteFlag) {
+				if (c == '"') {
+					// End of quoted string
+					++_index;
+					break;
+				}
+			} else {
+				if (c == '"') {
+					// Start of quoted string
+					++_index;
+					quoteFlag = true;
+					continue;
+				}
+			}
+		}
+
+		resultStr += c;
+		++_index;
+	}
+
+	return true;
+}
+
+uint CStringParser::readInt() {
+	// Get digits from the string
+	CString numStr;
+	while (Common::isDigit(currentChar()))
+		numStr += getNextChar();
+
+	// Throw a wobbly if there wasn't a number
+	if (numStr.empty())
+		error("ReadInt(): No number to read");
+
+	return atoi(numStr.c_str());
+}
+
+char CStringParser::currentChar() const {
+	return (_index >= size()) ? '\0' : (*this)[_index];
+}
+
+char CStringParser::getNextChar() {
+	return (_index >= size()) ? '\0' : (*this)[_index++];
+}
+
+void CStringParser::skipSpaces() {
+	while (_index < size() && Common::isSpace(currentChar()))
+		++_index;
+}
+
+} // End of namespace Titanic