refactoring utils

1 files changed, 111 insertions, 0 deletions

diff --git a/rotord/src/utils.cpp b/rotord/src/utils.cpp
index 9828124..cd12aa4 100644
--- a/rotord/src/utils.cpp
+++ b/rotord/src/utils.cpp
@@ -27,3 +27,114 @@ bool fgreater(const float u,const float v){
 	if (v-u>FLOAT_THRESHOLD) return true;
 	else return false;
 };
+
+//----------------------------------------
+template <>
+string toHex(const string& value) {
+	ostringstream out;
+	// how many bytes are in the string
+	int numBytes = value.size();
+	for(int i = 0; i < numBytes; i++) {
+		// print each byte as a 2-character wide hex value
+		out << setfill('0') << setw(2) << hex << (unsigned int) ((unsigned char)value[i]);
+	}
+	return out.str();
+}
+
+//----------------------------------------
+string toHex(const char* value) {
+	// this function is necessary if you want to print a string
+	// using a syntax like toHex("test")
+	return toHex((string) value);
+}
+
+//----------------------------------------
+int toInt(const string& intString) {
+	int x = 0;
+	istringstream cur(intString);
+	cur >> x;
+	return x;
+}
+
+//----------------------------------------
+int hexToInt(const string& intHexString) {
+	int x = 0;
+	istringstream cur(intHexString);
+	cur >> hex >> x;
+	return x;
+}
+
+//----------------------------------------
+char hexToChar(const string& charHexString) {
+	int x = 0;
+	istringstream cur(charHexString);
+	cur >> hex >> x;
+	return (char) x;
+}
+
+//----------------------------------------
+float hexToFloat(const string& floatHexString) {
+	union intFloatUnion {
+		int x;
+		float f;
+	} myUnion;
+	myUnion.x = 0;
+	istringstream cur(floatHexString);
+	cur >> hex >> myUnion.x;
+	return myUnion.f;
+}
+
+//----------------------------------------
+string hexToString(const string& stringHexString) {
+	stringstream out;
+	stringstream stream(stringHexString);
+	// a hex string has two characters per byte
+	int numBytes = stringHexString.size() / 2;
+	for(int i = 0; i < numBytes; i++) {
+		string curByte;
+		// grab two characters from the hex string
+		stream >> setw(2) >> curByte;
+		// prepare to parse the two characters
+		stringstream curByteStream(curByte);
+		int cur = 0;
+		// parse the two characters as a hex-encoded int
+		curByteStream >> hex >> cur;
+		// add the int as a char to our output stream
+		out << (char) cur;
+	}
+	return out.str();
+}
+
+//----------------------------------------
+float toFloat(const string& floatString) {
+	float x = 0;
+	istringstream cur(floatString);
+	cur >> x;
+	return x;
+}
+
+//----------------------------------------
+bool toBool(const string& boolString) {
+	static const string trueString = "true";
+	static const string falseString = "false";
+	string lower = Poco::toLower(boolString);
+	if(lower == trueString) {
+		return true;
+	}
+	if(lower == falseString) {
+		return false;
+	}
+	bool x = false;
+	istringstream cur(lower);
+	cur >> x;
+	return x;
+}
+
+//----------------------------------------
+char toChar(const string& charString) {
+	char x = '\0';
+	istringstream cur(charString);
+	cur >> x;
+	return x;
+}
+