1 files changed, 64 insertions, 0 deletions
diff --git a/reader/src/library/Number.cpp b/reader/src/library/Number.cpp
new file mode 100644
index 0000000..003104e
--- /dev/null
+++ b/reader/src/library/Number.cpp
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2009-2012 Geometer Plus <contact@geometerplus.com>
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <cstdlib>
+
+#include <ZLStringUtil.h>
+
+#include "Number.h"
+
+static std::string ZERO = "0";
+
+Number::Number() : myNumber(ZERO) {
+}
+
+Number::Number(std::string number) : myNumber(validate(number)) {
+}
+
+Number::Number(int number) {
+	ZLStringUtil::appendNumber(myNumber, number);
+}
+
+std::string Number::validate(const std::string &value) {
+	std::string result = value;
+	while (result.size() > 1 && ZLStringUtil::stringStartsWith(result, ZERO)) {
+		result = result.substr(1);
+	}
+	return result;
+}
+
+const std::string &Number::value() const {
+	return myNumber;
+}
+
+void Number::setValue(const std::string &value) {
+	myNumber = validate(value);
+}
+
+bool Number::operator <(const Number &number) const {
+	int index = std::strtol(myNumber.c_str(), 0, 10);
+	int otherIndex = std::strtol(number.value().c_str(), 0, 10);
+	return index < otherIndex;
+}
+
+bool Number::operator ==(const Number &number) const {
+	int index = std::strtol(myNumber.c_str(), 0, 10);
+	int otherIndex = std::strtol(number.value().c_str(), 0, 10);
+	return index == otherIndex;
+}