Re: I need more eyes on this one.

From: Pedro Graca (hexkid_at_hotpop.com)
Date: 07/04/04 

Date: 4 Jul 2004 13:19:46 GMT

KPR wrote:
> I'm getting a "parse error before 'else'" at the line indicated by the
> arrow. Can anybody see what the heck is wrong?
> -----------------------------------------------------------------------------------------------------------------------
> void IS_IT_A_DDR(string& mtgrec,string& temprec,int& ddrrc) {
> string Day2="SunMonTueWedThuFriSat";
> string Daytoken="0123456";
> int badday=0;
> if (mtgrec.size() < 8) {
> ddrrc=0;
> return;
> }
> for (int i=0; i <= 6; i++) {
> if (mtgrec.substr(0,3) == Day2.substr((i+1)*3-3,3)) {
> if ((mtgrec.substr(3,1) == "0") || (mtgrec.substr(3,1) ==
> "1")) {
> if ((mtgrec.substr(7,1)).find_first_of("BCLMOPSTW*") !=
> -1) {
> temprec=Daytoken.substr(i,1) + mtgrec.substr(1);
> ddrrc=1;
> return;
> }
> else {
> ddrrc=2;
> return;
> }
> else {
><<<<<=====================================
> ddrrc=3;
> return;
> }
> }
> }
> else badday++;
> }
> if (badday == 7) {
> ddrrc=4;
> return;
> }
> else ddrrc=5;
> return;
> }
> --------------------------------------------------------------------------------------------------------------------------------

Remove everything execpt the for() loop
------------
for (int i=0; i <= 6; i++) {
    if (mtgrec.substr(0,3) == Day2.substr((i+1)*3-3,3)) {
        if ((mtgrec.substr(3,1) == "0") || (mtgrec.substr(3,1) == "1")) {
            if ((mtgrec.substr(7,1)).find_first_of("BCLMOPSTW*") != -1) {
                temprec=Daytoken.substr(i,1) + mtgrec.substr(1);
                ddrrc=1;
                return;
            }
            else {
                ddrrc=2;
                return;
            }
        else { <<<<<=====================================
            ddrrc=3;
            return;
        }
        }
    }
    else badday++;
}
------------

Now remove all code, keeping just the structure
--------
for () {
    if () {
        if () {
            if () {
            }
            else {
            }
        else { <<<<<=====================================
        }
        }
    }
    else badday++;
}
--------

Now remove the innermost if() else
--------
for () {
    if () {
        if () {
        else { <<<<<=====================================
        }
        }
    }
    else badday++;
}
--------

Do you see the parse error now? :) 

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