From 47015126a6457cafc71849edb16d2cac80c34c5c Mon Sep 17 00:00:00 2001
From: cloudwalk <cloudwalk@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Wed, 19 Aug 2020 14:24:03 +0000
Subject: [PATCH] cmd: Reduce duplicate code with command lookup

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12908 d7cf8633-e32d-0410-b094-e92efae38249
---
 cmd.c | 73 ++++++++++++++++++++++++++++-------------------------------
 cmd.h |  2 ++
 2 files changed, 36 insertions(+), 39 deletions(-)

diff --git a/cmd.c b/cmd.c
index f58730bf..6f76df95 100644
--- a/cmd.c
+++ b/cmd.c
@@ -1949,6 +1949,30 @@ next:
 	}
 }
 
+static int Cmd_Compare(const char *s1, const char *s2, size_t len, qboolean casesensitive)
+{
+	if(len)
+		return (casesensitive ? strncmp(s1, s2, len) : strncasecmp(s1, s2, len));
+	else
+		return (casesensitive ? strcmp(s1, s2) : strcasecmp(s1, s2));
+}
+
+cmd_function_t *Cmd_GetCommand(cmd_state_t *cmd, const char *partial, size_t len, qboolean casesensitive)
+{
+	cmd_function_t *func = NULL;
+
+	// check functions
+	for (func = cmd->userdefined->csqc_functions; func; func = func->next)
+		if (!Cmd_Compare(partial, func->name, len, casesensitive))
+			break;
+
+	for (func=cmd->engine_functions ; func ; func=func->next)
+		if (!Cmd_Compare(partial, func->name, len, casesensitive))
+			break;
+
+	return func;
+}
+
 /*
 ============
 Cmd_Exists
@@ -1956,20 +1980,11 @@ Cmd_Exists
 */
 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name)
 {
-	cmd_function_t	*func;
-
-	for (func = cmd->userdefined->csqc_functions; func; func = func->next)
-		if (!strcmp(cmd_name, func->name))
-			return true;
-
-	for (func=cmd->engine_functions ; func ; func=func->next)
-		if (!strcmp (cmd_name,func->name))
-			return true;
-
+	if(Cmd_GetCommand(cmd, cmd_name, 0, true))
+		return true;
 	return false;
 }
 
-
 /*
 ============
 Cmd_CompleteCommand
@@ -1978,22 +1993,10 @@ Cmd_CompleteCommand
 const char *Cmd_CompleteCommand (cmd_state_t *cmd, const char *partial)
 {
 	cmd_function_t *func;
-	size_t len;
-
-	len = strlen(partial);
-
-	if (!len)
-		return NULL;
-
-// check functions
-	for (func = cmd->userdefined->csqc_functions; func; func = func->next)
-		if (!strncasecmp(partial, func->name, len))
-			return func->name;
-
-	for (func = cmd->engine_functions; func; func = func->next)
-		if (!strncasecmp(partial, func->name, len))
-			return func->name;
 
+	func = Cmd_GetCommand(cmd, partial, strlen(partial), false);
+	if(func)
+		return func->name;
 	return NULL;
 }
 
@@ -2213,19 +2216,12 @@ void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qb
 		goto done; // no tokens
 
 // check functions
-	for (func = cmd->userdefined->csqc_functions; func; func = func->next)
+	func = Cmd_GetCommand(cmd, cmd->argv[0], 0, false);
+	if(func)
 	{
-		if (!strcasecmp(cmd->argv[0], func->name))
-		{
-			if (func->csqcfunc && CL_VM_ConsoleCommand(text))	//[515]: csqc
-				goto done;
-			break;
-		}
-	}
-
-	for (func = cmd->engine_functions; func; func=func->next)
-	{
-		if (!strcasecmp (cmd->argv[0], func->name))
+		if (func->csqcfunc && CL_VM_ConsoleCommand(text))	//[515]: csqc
+			goto done;
+		else
 		{
 			switch (src)
 			{
@@ -2245,7 +2241,6 @@ void Cmd_ExecuteString (cmd_state_t *cmd, const char *text, cmd_source_t src, qb
 					goto done;
 				}
 			}
-			break;
 		}
 	}
 
diff --git a/cmd.h b/cmd.h
index b1218a73..8a8d32b9 100644
--- a/cmd.h
+++ b/cmd.h
@@ -222,6 +222,8 @@ void Cmd_AddCommand(int flags, const char *cmd_name, xcommand_t function, const
 // register commands and functions to call for them.
 // The cmd_name is referenced later, so it should not be in temp memory
 
+cmd_function_t *Cmd_GetCommand(cmd_state_t *cmd, const char *partial, size_t len, qboolean casesensitive);
+
 /// used by the cvar code to check for cvar / command name overlap
 qboolean Cmd_Exists (cmd_state_t *cmd, const char *cmd_name);
 
-- 
2.39.2