1 files changed, 77 insertions, 9 deletions

diff --git a/src/util/string.h b/src/util/string.h
index 40ef3e4d3..572c37150 100644
--- a/src/util/string.h
+++ b/src/util/string.h
@@ -21,12 +21,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define UTIL_STRING_HEADER
 
 #include "irrlichttypes_bloated.h"
+#include "cpp11_container.h"
 #include <stdlib.h>
 #include <string>
 #include <cstring>
 #include <vector>
 #include <map>
 #include <sstream>
+#include <iomanip>
 #include <cctype>
 
 #define STRINGIFY(x) #x
@@ -53,7 +55,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	(((unsigned char)(x) < 0xe0) ? 2 :     \
 	(((unsigned char)(x) < 0xf0) ? 3 : 4))
 
-typedef std::map<std::string, std::string> StringMap;
+typedef UNORDERED_MAP<std::string, std::string> StringMap;
 
 struct FlagDesc {
 	const char *name;
@@ -77,8 +79,8 @@ wchar_t *narrow_to_wide_c(const char *str);
 std::wstring narrow_to_wide(const std::string &mbs);
 std::string wide_to_narrow(const std::wstring &wcs);
 
-std::string urlencode(std::string str);
-std::string urldecode(std::string str);
+std::string urlencode(const std::string &str);
+std::string urldecode(const std::string &str);
 u32 readFlagString(std::string str, const FlagDesc *flagdesc, u32 *flagmask);
 std::string writeFlagString(u32 flags, const FlagDesc *flagdesc, u32 flagmask);
 size_t mystrlcpy(char *dst, const char *src, size_t size);
@@ -350,23 +352,57 @@ inline T from_string(const std::string &str)
 /// Returns a 64-bit signed value represented by the string \p str (decimal).
 inline s64 stoi64(const std::string &str) { return from_string<s64>(str); }
 
-// TODO: Replace with C++11 std::to_string.
+#if __cplusplus < 201103L
+namespace std {
 
 /// Returns a string representing the value \p val.
 template <typename T>
-inline std::string to_string(T val)
+inline string to_string(T val)
 {
-	std::ostringstream oss;
+	ostringstream oss;
 	oss << val;
 	return oss.str();
 }
+#define DEFINE_STD_TOSTRING_FLOATINGPOINT(T)		\
+	template <>					\
+	inline string to_string<T>(T val)		\
+	{						\
+		ostringstream oss;			\
+		oss << std::fixed			\
+			<< std::setprecision(6)		\
+			<< val;				\
+		return oss.str();			\
+	}
+DEFINE_STD_TOSTRING_FLOATINGPOINT(float)
+DEFINE_STD_TOSTRING_FLOATINGPOINT(double)
+DEFINE_STD_TOSTRING_FLOATINGPOINT(long double)
+
+#undef DEFINE_STD_TOSTRING_FLOATINGPOINT
+
+/// Returns a wide string representing the value \p val
+template <typename T>
+inline wstring to_wstring(T val)
+{
+      return utf8_to_wide(to_string(val));
+}
+}
+#endif
 
 /// Returns a string representing the decimal value of the 32-bit value \p i.
-inline std::string itos(s32 i) { return to_string(i); }
+inline std::string itos(s32 i) { return std::to_string(i); }
 /// Returns a string representing the decimal value of the 64-bit value \p i.
-inline std::string i64tos(s64 i) { return to_string(i); }
+inline std::string i64tos(s64 i) { return std::to_string(i); }
+
+// std::to_string uses the '%.6f' conversion, which is inconsistent with
+// std::ostream::operator<<() and impractical too.  ftos() uses the
+// more generic and std::ostream::operator<<()-compatible '%G' format.
 /// Returns a string representing the decimal value of the float value \p f.
-inline std::string ftos(float f) { return to_string(f); }
+inline std::string ftos(float f)
+{
+	std::ostringstream oss;
+	oss << f;
+	return oss.str();
+}
 
 
 /**
@@ -519,6 +555,38 @@ std::basic_string<T> unescape_enriched(const std::basic_string<T> &s)
 	return output;
 }
 
+template <typename T>
+std::vector<std::basic_string<T> > split(const std::basic_string<T> &s, T delim)
+{
+	std::vector<std::basic_string<T> > tokens;
+
+	std::basic_string<T> current;
+	bool last_was_escape = false;
+	for (size_t i = 0; i < s.length(); i++) {
+		T si = s[i];
+		if (last_was_escape) {
+			current += '\\';
+			current += si;
+			last_was_escape = false;
+		} else {
+			if (si == delim) {
+				tokens.push_back(current);
+				current = std::basic_string<T>();
+				last_was_escape = false;
+			} else if (si == '\\') {
+				last_was_escape = true;
+			} else {
+				current += si;
+				last_was_escape = false;
+			}
+		}
+	}
+	//push last element
+	tokens.push_back(current);
+
+	return tokens;
+}
+
 /**
  * Checks that all characters in \p to_check are a decimal digits.
  *