[Misiur]

Hello. This is example code

pawn Code:

main() {
    new src[] = "I liek pancakes|52|tomatoes"; //String parsed by sscanf 
    new str[5][64], int[5], Float:flo[5]; //Variable holders
    new is_str[5], is_int[5]; //Variable type holders
    new pattern[5] = "sds"; //Sscanf pattern

    //Simple loop checking variable type from pattern, char by char (string, decimal and float only allowed)
    for(new i = 0, l = strlen(pattern); i < l; i++) {
        switch(pattern[i]) {
            case 's': {
                is_str[i] = true;
            }
            case 'i': {
                is_int[i] = true;
            }
        }
    }
    
    /*
    Equivalent to:
    if(is_str[%0]) str[%0];
    else {
        if(is_int[%0]) int[%0];
        else flo[%0];
    }
    */
    #define VAL(%0) ((is_str[%0]) ? (str[%0]) : ((is_int[%0]) ? (int[%0]) : (flo[%0])))
    sscanf(src, pattern, VAL(0), VAL(1), VAL(2), VAL(3), VAL(4));
    /*
    After preprocessing (pawn.cc -l):
        sscanf(src, pattern, ((is_str[0]) ? (str[0]) : ((is_int[0]) ? (int[0]) : (flo[0]))), ((is_str[1]) ? (str[1]) : ((is_int[1]) ? (int[1]) : (flo[1]))), ((is_str[2]) ? (str[2]) : ((is_int[2]) ? (int[2]) : (flo[2]))), ((is_str[3]) ? (str[3]) : ((is_int[3]) ? (int[3]) : (flo[3]))), ((is_str[4]) ? (str[4]) : ((is_int[4]) ? (int[4]) : (flo[4]))));
    */
}

Result:

pawn Code:

niga.pwn(23) : warning 213: tag mismatch
niga.pwn(23) : error 033: array must be indexed (variable "str")
Pawn compiler 3.2.3664          Copyright (c) 1997-2006, ITB CompuPhase

Wat? I thought "{Float,_}:..." in argument list means that all tags are acceptable. Dammit pawn, cooperate with me! (upd: now I know that it accepts only weak tags and Float)

[Misiur]

Well, that solved tag mismatch error. However it makes it impossible to pass a string variable (when I override the tag, it interprets string as simple array and requires specified index). Is there way past this (some magical OP codes, or using some additional plugins)?

[Misiur]

Ok, thank you very much (started playing with fasm few weeks ago, now it's time learn using emit). Nice catch on the loop thingy, I didn't thought about that. I will share the solution if I can manage to get some results