move string utils in namespace utils::string

common/utils/string_utils.h

@@ -0,0 +1,103 @@
+#ifndef STRING_UTILS_H
+#define STRING_UTILS_H
+
+#include <algorithm>
+#include <string>
+#include <sstream>
+#include <vector>
+
+
+namespace utils
+{
+namespace string
+{
+
+// trim from start
+static inline std::string &ltrim(std::string &s)
+{
+	s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
+	return s;
+}
+
+// trim from end
+static inline std::string &rtrim(std::string &s)
+{
+	s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
+	return s;
+}
+
+// trim from both ends
+static inline std::string &trim(std::string &s)
+{
+	return ltrim(rtrim(s));
+}
+
+// trim from start
+static inline std::string ltrim_copy(const std::string &s)
+{
+	std::string str(s);
+	return ltrim(str);
+}
+
+// trim from end
+static inline std::string rtrim_copy(const std::string &s)
+{
+	std::string str(s);
+	return rtrim(str);
+}
+
+// trim from both ends
+static inline std::string trim_copy(const std::string &s)
+{
+	std::string str(s);
+	return trim(str);
+}
+
+// decode %xx to char
+static std::string uriDecode(const std::string& src) {
+	std::string ret;
+	char ch;
+	for (size_t i=0; i<src.length(); i++)
+	{
+		if (int(src[i]) == 37)
+		{
+			unsigned int ii;
+			sscanf(src.substr(i+1, 2).c_str(), "%x", &ii);
+			ch = static_cast<char>(ii);
+			ret += ch;
+			i += 2;
+		}
+		else
+		{
+			ret += src[i];
+		}
+	}
+	return (ret);
+}
+
+
+
+static std::vector<std::string> &split(const std::string &s, char delim, std::vector<std::string> &elems)
+{
+	std::stringstream ss(s);
+	std::string item;
+	while (std::getline(ss, item, delim))
+	{
+		elems.push_back(item);
+	}
+	return elems;
+}
+
+
+static std::vector<std::string> split(const std::string &s, char delim)
+{
+	std::vector<std::string> elems;
+	split(s, delim, elems);
+	return elems;
+}
+
+} // namespace string
+} // namespace utils
+
+#endif
+