IsNumeric(const string[])
{
for (new i = 0, j = strlen(string); i < j; i++)
{
if (string[i] > '9' || string[i] < '0') return 0;
}
return 1;
}

ReturnUser(text[], playerid = INVALID_PLAYER_ID)
{
new pos = 0;
while (text[pos] < 0x21) // Strip out leading spaces
{
if (text[pos] == 0) return INVALID_PLAYER_ID; // No passed text
pos++;
}
new userid = INVALID_PLAYER_ID;
if (IsNumeric(text[pos])) // Check whole passed string
{
// If they have a numeric name you have a problem (although names are checked on id failure)
userid = strval(text[pos]);
if (userid >=0 && userid < MAX_PLAYERS)
{
if(!IsPlayerConnected(userid))
{
/*if (playerid != INVALID_PLAYER_ID)
{
SendClientMessage(playerid, 0xFF0000AA, "User not connected");
}*/
userid = INVALID_PLAYER_ID;
}
else
{
return userid; // A player was found
}
}
/*else
{
if (playerid != INVALID_PLAYER_ID)
{
SendClientMessage(playerid, 0xFF0000AA, "Invalid user ID");
}
userid = INVALID_PLAYER_ID;
}
return userid;*/
// Removed for fallthrough code
}
// They entered [part of] a name or the id search failed (check names just incase)
new len = strlen(text[pos]);
new count = 0;
new name[MAX_PLAYER_NAME];
for (new i = 0; i < MAX_PLAYERS; i++)
{
if (IsPlayerConnected(i))
{
GetPlayerName(i, name, sizeof (name));
if (strcmp(name, text[pos], true, len) == 0) // Check segment of name
{
if (len == strlen(name)) // Exact match
{
return i; // Return the exact player on an exact match
// Otherwise if there are two players:
// Me and MeYou any time you entered Me it would find both
// And never be able to return just Me's id
}
else // Partial match
{
count++;
userid = i;
}
}
}
}
if (count != 1)
{
if (playerid != INVALID_PLAYER_ID)
{
if (count)
{
SendClientMessage(playerid, 0xFF0000AA, "Multiple users found, please narrow earch");
}
else
{
SendClientMessage(playerid, 0xFF0000AA, "No matching user found");
}
}
userid = INVALID_PLAYER_ID;
}
return userid; // INVALID_USER_ID for bad return
}