Beispiel #1
0
int checkSize(const char * arg) {
    if (! isDecNum(arg) ) {
        cout << "size must be a positive integer: [" << arg << "]" << endl;
        exit(1);
    }
    return atoi(arg);
}
Beispiel #2
0
int getNextElem(char *str, int *pos, char *token) {
    int i;
    token[0] = '\0';
    i=0;
    while (str[*pos]!='\0') {
        /*bracelet*/
        if (str[*pos]=='(') {
            *pos = *pos+1;
            strcpy(token,"(");
            return 1;
        }
        else if (str[*pos]==')') {
            *pos = *pos+1;
            strcpy(token,")");
            return 1;
        }
        /*induction register*/
        else if (str[*pos]=='$') {
            token[i++]=str[*pos];
            *pos = *pos+1;
            while (isDecNum(str[*pos])) {
                token[i++]=str[*pos];
                *pos = *pos+1;
                if (str[*pos]=='\0') break;
            }
            token[i]='\0';
            return 1;
        }
        /*numerical value, 0x1234abcdef*/
        else if ( isHexNum(str[*pos]) ) {
            while( isHexNum(str[*pos]) ) {
                token[i++]=str[*pos];
                *pos = *pos+1;
                if (str[*pos]=='\0') break;
            }
            token[i]='\0';
            return 1;
        }
        else if (str[*pos]=='T') {//unknown var
            token[i++]=str[*pos];
            token[i]='\0';
            *pos = *pos+1;
            return 1; 
        }
        /*oprator, hopefully*/
        else if (str[*pos]!=' ') {
            while (str[*pos]!='$' && !isHexNum(str[*pos]) && str[*pos]!='T' 
                    && str[*pos]!='(' && str[*pos]!=')' && str[*pos]!=' ') {
                token[i++]=str[*pos];
                *pos = *pos+1;
                if (str[*pos]=='\0') break;
            }
            token[i]='\0';
            return 1;
        }
        //blank space
        else *pos = *pos + 1;
    }
    return 0;
}