sscanf Error

[Jameskmonger]

I was writing a spawn weapon command I get an error on the sscanf line.

if(sscanf(params, "pk<weapon>i(-1)", target, weapon, ammo)) {

The command does not work (I get the Usage: message, which occurs if the player does not use the command correctly, and this is determined by the line above).

In the console, I get this printed:

[11:36:15] sscanf warning: Unknown format specifier '<', skipping.
[11:36:15] sscanf warning: Unknown format specifier 'w', skipping.
[11:36:22] sscanf warning: Unenclosed specifier parameters are deprecated, consider using something like p<k>.

[oscar-broman]

Did you create a sscanf "kustom specifier" for weapons?

[Jameskmonger]

There's already one in the sscanf2.inc file in the main "include" folder

[oscar-broman]

Perhaps the sscanf plugin is outdated. I can't test that at the moment, could you?

[Jameskmonger]

What do you mean by test it? If you mean download the "latest" plugin, add it to my server and try it then, then yeah sure :)

[oscar-broman]

Yeah, do that please.

[Jameskmonger]

I've updated both the plugin and the include and I still get this printed into the chatlog and the command does not work:

[12:08:46] sscanf warning: Unenclosed specifier parameters are deprecated, consider using something like p<k>.
[12:08:46] sscanf warning: Unknown format specifier '<', skipping.
[12:08:46] sscanf warning: Unknown format specifier 'w', skipping.
[12:08:46] sscanf error: No specified parameters found.

Here is my whole command:

CommandDescription<spawnweapon> = @"Spawn a weapon for the specified player.";
YCMD(GROUP_ADMIN, GROUP_MANAGEMENT, GROUP_RCON):spawnweapon(playerid, params[], help) {
    if(help) {
        SendClientMessage(playerid, COLOR_COMMAND_HELP, @"Spawn a weapon for a specified player");
    } else {
        new target, weapon, ammo;
        if(sscanf(params, "pk<weapon>i(-1)", target, weapon, ammo)) {
            SendClientMessage(playerid, COLOR_COMMAND_USAGE, @"* Usage: /spawnweapon [player] [weapon] [OPTIONAL: ammo-amount]");
        } else {
            if(playerid == INVALID_PLAYER_ID) {
                SendClientMessage(playerid, COLOR_COMMAND_ERROR, @"Invalid player ID");
                return 1;
            }
            if(weapon != -1) {
                if(ammo == -1) {
                    GivePlayerWeapon(target, weapon, 99999);
                    SendClientMessage(playerid, 0xFF87E9FF, @"You have given %p %w with unlimited ammo.", target, weapon);
                    SendClientMessage(target, 0xFF87E9FF, @"%p has given you %w with unlimited ammo.", playerid, weapon);
                } else {
                    GivePlayerWeapon(target, weapon, ammo);
                    SendClientMessage(playerid, 0xFF87E9FF, @"You have given %p %w with %d round of ammo.", target, weapon, ammo);
                    SendClientMessage(target, 0xFF87E9FF, @"%p has given you %w with %d rounds of ammo.", playerid, weapon, ammo);
                }
            } else {
                SendClientMessage(playerid, COLOR_COMMAND_ERROR, @"You entered an invalid weapon.");
            }
        }
    }
    return 1;
}

When I type /spawnweapon 0 24 1, I get the above error and I also get the "* Usage: /spawnweapon..." message sent to my client.

[oscar-broman]

I see what's wrong now. You should be using u for player - p is to specify delimiters.

[Jameskmonger]

Thanks, it works a lot better now. However, I get the "Usage:" line if I leave the "ammo" field blank, whereas it should work with or without the specification of ammo.

[oscar-broman]

Ask in the sscanf forum topic.

[Jameskmonger]

To anyone experiencing this same problem, capitalise the optional parameter! In the example above, I would need to use

"rk<weapon>I(-1)"

rather than

"rk<weapon>i(-1)"