[IceCucumber]

I'm attempting to remove all non-alphanumeric characters from a string to later check it against some phrases. If someone could help me with this I'd appreciate it.

PHP Code:

TrimMessage(String:message[256]) // Trim all non-alphanumeric characters from a message
for (new i = 0; i < sizeof(message); i++)
{      
    if (!IsCharAlpha(message[i]) || (!IsCharNumeric(message[i])))
    {
        // remove this particular character from the string. Format? strcopy? : /
    }
} 


[Powerlord]

You need && not ||

[IceCucumber]

Right. How would I go about editing (removing) the character numbered i from the string?

strcopy(message[i], sizeof(message), "");

Didn't seem to work.

[berni]

The solution with best performance is to build a new string and copy every character you want. This requires a for loop and two counter variables. One for the source string and one for the target string.

Not tested:

PHP Code:

new String:cleanedMessage[sizeof(message)+1];
new pos_cleanedMessage = 0;
for (new i = 0; i < sizeof(message); i++) {
    if (IsCharAlpha(message[i]) || IsCharNumeric(message[i])) {
        cleanedMessage[pos_cleanedMessage++] = message[i];
    }
}

// Terminate the string with 0
cleanedMessage[pos_cleanedMessage] = '\0'; 


[IceCucumber]

Thanks, both of you. This seems to be working fine.