1 files changed, 83 insertions, 0 deletions
diff --git a/src/uscxml/util/Convenience.h b/src/uscxml/util/Convenience.h
new file mode 100644
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+++ b/src/uscxml/util/Convenience.h
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+/**
+ *  @file
+ *  @author     2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
+ *  @copyright  Simplified BSD
+ *
+ *  @cond
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the FreeBSD license as published by the FreeBSD
+ *  project.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the FreeBSD license along with this
+ *  program. If not, see <http://www.opensource.org/licenses/bsd-license>.
+ *  @endcond
+ */
+
+#ifndef CONVENIENCE_H_LU7GZ6CB
+#define CONVENIENCE_H_LU7GZ6CB
+
+#include "uscxml/Common.h"
+#include <string>
+#include <limits>
+#include <sstream>
+
+namespace uscxml {
+inline bool isnan(double x);
+
+// see http://stackoverflow.com/questions/228005/alternative-to-itoa-for-converting-integer-to-string-c
+template <typename T> std::string toStr(T tmp) {
+	std::ostringstream outSS;
+	outSS.precision(std::numeric_limits<double>::digits10 + 1);
+	outSS << tmp;
+	return outSS.str();
+}
+
+template <typename T> T strTo(std::string tmp) {
+	T output;
+	std::istringstream in(tmp);
+	in >> output;
+	return output;
+}
+
+class USCXML_API NumAttr {
+public:
+	NumAttr(const std::string& str) {
+		size_t valueStart = str.find_first_of("0123456789.");
+		if (valueStart != std::string::npos) {
+			size_t valueEnd = str.find_last_of("0123456789.");
+			if (valueEnd != std::string::npos) {
+				value = str.substr(valueStart, (valueEnd - valueStart) + 1);
+				size_t unitStart = str.find_first_not_of(" \t", valueEnd + 1);
+				if (unitStart != std::string::npos) {
+					size_t unitEnd = str.find_last_of(" \t");
+					if (unitEnd != std::string::npos && unitEnd > unitStart) {
+						unit = str.substr(unitStart, unitEnd - unitStart);
+					} else {
+						unit = str.substr(unitStart, str.length() - unitStart);
+					}
+				}
+			}
+		}
+	}
+
+	std::string value;
+	std::string unit;
+};
+
+bool isNumeric(const char* pszInput, int nNumberBase);
+bool isInteger( const char* pszInput, int nNumberBase);
+bool iequals(const std::string& a, const std::string& b);
+bool equals(const std::string& a, const std::string& b);
+bool stringIsTrue(const std::string& value);
+bool envVarIsTrue(const char* name);
+bool envVarIEquals(const char* name, const char* value);
+
+std::string escape(const std::string& a);
+std::string unescape(const std::string& a);
+
+}
+#endif /* end of include guard: CONVENIENCE_H_LU7GZ6CB */