int checkSize(const char * arg) {
if (! isDecNum(arg) ) {
cout << "size must be a positive integer: [" << arg << "]" << endl;
exit(1);
}
return atoi(arg);
}
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;
}
