Changed: New functions to convert arguments string from/to an array of strings

--HG--
branch : develop

code/nel/include/nel/misc/common.h

@@ -378,6 +378,10 @@ std::string getCommandOutput(const std::string &command);
 /// Authorized characters in names are A-Z, a-z, 0-9 and _
 std::string expandEnvironmentVariables(const std::string &s);
 
+/// Functions to convert a string with arguments to array or array to string (will espace strings with spaces)
+bool explodeArguments(const std::string &str, std::vector<std::string> &args);
+std::string joinArguments(const std::vector<std::string> &args);
+
 /// This function kills a program using his pid (on unix, it uses the kill() POSIX function)
 bool killProgram(uint32 pid);
 

code/nel/src/misc/cmd_args.cpp

@@ -202,42 +202,13 @@ bool CCmdArgs::parse(const std::string &args)
 	wchar_t str[4096];
 	uint len = GetModuleFileNameW(NULL, str, 4096);
 
+	// first argument should be full path to executable
 	if (len && len < 4096)
 		argv.push_back(wideToUtf8(str));
 #endif
 
-	std::string::size_type pos1 = 0, pos2 = 0;
-
-	do
-	{
-		// Look for the first non space character
-		pos1 = args.find_first_not_of (" ", pos2);
-		if(pos1 == std::string::npos) break;
-
-		// Look for the first space or "
-		pos2 = args.find_first_of (" \"", pos1);
-		if(pos2 != std::string::npos)
-		{
-			// " ?
-			if(args[pos2] == '"')
-			{
-				// Look for the final \"
-				pos2 = args.find_first_of ("\"", pos2+1);
-				if(pos2 != std::string::npos)
-				{
-					// Look for the first space
-					pos2 = args.find_first_of (" ", pos2+1);
-				}
-			}
-		}
-
-		// Compute the size of the string to extract
-		std::string::difference_type length = (pos2 != std::string::npos) ? pos2-pos1 : std::string::npos;
-
-		std::string tmp = args.substr (pos1, length);
-		argv.push_back (tmp);
-	}
-	while(pos2 != std::string::npos);
+	// convert string with arguments to array
+	explodeArguments(args, argv);
 
 	return parse(argv);
 }

code/nel/src/misc/common.cpp

@@ -851,15 +851,7 @@ bool launchProgram(const std::string &programName, const std::string &arguments,
 
 	// convert one arg into several args
 	vector<string> args;
-	string::size_type pos1 = 0, pos2 = 0;
-	do
-	{
-		pos1 = arguments.find_first_not_of (" ", pos2);
-		if (pos1 == string::npos) break;
-		pos2 = arguments.find_first_of (" ", pos1);
-		args.push_back (arguments.substr (pos1, pos2-pos1));
-	}
-	while (pos2 != string::npos);
+	explodeArguments(arguments, args);
 
 	// Store the size of each arg
 	vector<char *> argv(args.size()+2);
@@ -1039,6 +1031,75 @@ std::string expandEnvironmentVariables(const std::string &s)
 	return ret;
 }
 
+bool explodeArguments(const std::string &str, std::vector<std::string> &args)
+{
+	if (str.empty()) return false;
+
+	std::string::size_type pos1 = 0, pos2 = 0;
+
+	do
+	{
+		// Look for the first non space character
+		pos1 = str.find_first_not_of (" ", pos2);
+		if (pos1 == std::string::npos) break;
+
+		// Look for the first space or "
+		pos2 = str.find_first_of (" \"", pos1);
+		if (pos2 != std::string::npos)
+		{
+			// " ?
+			if (str[pos2] == '"')
+			{
+				// Look for the final \"
+				pos2 = str.find_first_of ("\"", pos2+1);
+				if (pos2 != std::string::npos)
+				{
+					// Look for the first space
+					pos2 = str.find_first_of (" ", pos2+1);
+				}
+			}
+		}
+
+		// Compute the size of the string to extract
+		std::string::difference_type length = (pos2 != std::string::npos) ? pos2-pos1 : std::string::npos;
+
+		std::string tmp = str.substr (pos1, length);
+
+		// remove escape " from argument
+		if (tmp.length() > 1 && tmp[0] == '"' && tmp[tmp.length()-1] == '"') tmp = tmp.substr(1, tmp.length()-2);
+
+		args.push_back (tmp);
+	}
+	while(pos2 != std::string::npos);
+
+	return true;
+}
+
+std::string joinArguments(const std::vector<std::string> &args)
+{
+	std::string res;
+
+	for(uint i = 0, len = (uint)args.size(); i < len; ++i)
+	{
+		const std::string &arg = args[i];
+
+		// prepend space
+		if (!res.empty()) res += " ";
+
+		// escape only if spaces or empty argument
+		if (arg.empty() || arg.find(' ') != std::string::npos)
+		{
+			res += "\"" + arg + "\"";
+		}
+		else
+		{
+			res += arg;
+		}
+	}
+
+	return res;
+}
+
 /*
  * Display the bits (with 0 and 1) composing a byte (from right to left)
  */