Add optional max_params for commands, which means that we can compress 'extra' params, while still accepting ':' terminated params, etc.

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@10715 e03df62e-2008-0410-955e-edbf42e46eb7

1 files changed, 37 insertions, 0 deletions

diff --git a/src/command_parse.cpp b/src/command_parse.cpp
index 0f93e6f53..984ce2314 100644
--- a/src/command_parse.cpp
+++ b/src/command_parse.cpp
@@ -296,6 +296,43 @@ bool CommandParser::ProcessCommand(User *user, std::string &cmd)
 		return true;
 	}
 
+	if (cm->second->max_params && command_p.size() > cm->second->max_params)
+	{
+		/*
+		 * command_p input (assuming max_params 1):
+		 *	this
+		 *	is
+		 *	a
+		 *	test
+		 */
+		std::string lparam = "";
+
+		/*
+		 * The '-1' here is a clever trick, we'll go backwards throwing everything into a temporary param
+		 * and then just toss that into the array.
+		 * -- w00t
+		 */
+		while (command_p.size() > (cm->second->max_params - 1))
+		{
+			// BE CAREFUL: .end() returns past the end of the vector, hence decrement.
+			std::vector<std::string>::iterator it = --command_p.end();
+		
+			lparam.insert(0, " " + *(it));
+			command_p.erase(it); // remove last element
+		}
+
+		/* we now have (each iteration):
+		 *	' test'
+		 *	' a test'
+		 *	' is a test' <-- final string
+		 * ...now remove the ' ' at the start...
+		 */
+		lparam.erase(lparam.begin());
+
+		/* param is now 'is a test', which is exactly what we wanted! */
+		command_p.push_back(lparam);
+	}
+
 	/* Modify the user's penalty */
 	bool do_more = true;
 	if (!user->ExemptFromPenalty)