Basic internationalization (i18n) framework.

base/stringutil.cpp

@@ -1,8 +1,19 @@
 #include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string>
+#include <sstream>
+
+#include <iomanip>
 
 #include "base/buffer.h"
 #include "base/stringutil.h"
 
+#ifdef _WIN32
+// Function Cross-Compatibility
+#define strcasecmp _stricmp
+#endif
+
 unsigned int parseHex(const char *_szValue)
 {
 	int Value = 0;
@@ -51,3 +62,144 @@ void DataToHexString(const uint8 *data, size_t size, std::string *output) {
 	}
 	buffer.TakeAll(output);
 }
+
+std::string StringFromFormat(const char* format, ...)
+{
+	va_list args;
+	char *buf = NULL;
+	std::string temp = "";
+#ifdef _WIN32
+	int required = 0;
+
+	va_start(args, format);
+	required = _vscprintf(format, args);
+	buf = new char[required + 1];
+	if(vsnprintf(buf, required, format, args) < 0)
+		buf[0] = '\0';
+	va_end(args);
+
+	buf[required] = '\0';
+	temp = buf;
+	delete[] buf;
+#else
+	va_start(args, format);
+	if(vasprintf(&buf, format, args) < 0)
+		buf = NULL;
+	va_end(args);
+
+	if(buf != NULL) {
+		temp = buf;
+		free(buf);
+	}
+#endif
+	return temp;
+}
+
+std::string StringFromInt(int value)
+{
+	char temp[16];
+	sprintf(temp, "%i", value);
+	return temp;
+}
+
+std::string StringFromBool(bool value)
+{
+	return value ? "True" : "False";
+}
+
+// Turns "  hej " into "hej". Also handles tabs.
+std::string StripSpaces(const std::string &str)
+{
+	const size_t s = str.find_first_not_of(" \t\r\n");
+
+	if (str.npos != s)
+		return str.substr(s, str.find_last_not_of(" \t\r\n") - s + 1);
+	else
+		return "";
+}
+
+// "\"hello\"" is turned to "hello"
+// This one assumes that the string has already been space stripped in both
+// ends, as done by StripSpaces above, for example.
+std::string StripQuotes(const std::string& s)
+{
+	if (s.size() && '\"' == s[0] && '\"' == *s.rbegin())
+		return s.substr(1, s.size() - 2);
+	else
+		return s;
+}
+
+// For Debugging. Read out an u8 array.
+std::string ArrayToString(const uint8_t *data, uint32_t size, int line_len, bool spaces)
+{
+	std::ostringstream oss;
+	oss << std::setfill('0') << std::hex;
+
+	for (int line = 0; size; ++data, --size)
+	{
+		oss << std::setw(2) << (int)*data;
+		if (line_len == ++line)
+		{
+			oss << '\n';
+			line = 0;
+		}
+		else if (spaces)
+			oss << ' ';
+	}
+
+	return oss.str();
+}
+
+bool TryParse(const std::string &str, uint32_t *const output)
+{
+	char *endptr = NULL;
+
+	// Holy crap this is ugly.
+
+	// Reset errno to a value other than ERANGE
+	errno = 0;
+
+	unsigned long value = strtoul(str.c_str(), &endptr, 0);
+
+	if (!endptr || *endptr)
+		return false;
+
+	if (errno == ERANGE)
+		return false;
+
+	if (ULONG_MAX > UINT_MAX) {
+#ifdef _MSC_VER
+#pragma warning (disable:4309)
+#endif
+		// Note: The typecasts avoid GCC warnings when long is 32 bits wide.
+		if (value >= static_cast<unsigned long>(0x100000000ull)
+			&& value <= static_cast<unsigned long>(0xFFFFFFFF00000000ull))
+			return false;
+	}
+
+	*output = static_cast<uint32_t>(value);
+	return true;
+}
+
+bool TryParse(const std::string &str, bool *const output)
+{
+	if ("1" == str || !strcasecmp("true", str.c_str()))
+		*output = true;
+	else if ("0" == str || !strcasecmp("false", str.c_str()))
+		*output = false;
+	else
+		return false;
+
+	return true;
+}
+
+void SplitString(const std::string& str, const char delim, std::vector<std::string>& output)
+{
+	std::istringstream iss(str);
+	output.resize(1);
+
+	while (std::getline(iss, *output.rbegin(), delim))
+		output.push_back("");
+
+	output.pop_back();
+}