Zelaron Gaming Forum - View Single Post

WetWired

WetWired said:

Or, you could simply put the loops in an inline function and return from it.

All this structure, of course, breaks down to gotos at the machine code level, anyway.

Of course, you can write spaghetti code without gotos, too:

Code:

unsigned uState=0;
while(1){
  switch(uState){
    case 0:
      //stuff
      uState=2;
      break;
    case 1:
      //other stuff
      break;
    case 2:
      //land here
      uState=1;
      break;
  }
}

This is actually a construct commonly used in my line of work 0_0

I think a "break 2;" is more elegant than an inline function but eh.

Actually, I've used that structure before too...here's a shitty html parser I wrote some time ago:

Code:

void HTMLParser::Parse(std::string code)
{
	std::string::iterator oldp, curp;
	int stage;
	Element elem;
	
	oldp = curp = code.begin();
	stage = 0;
	while(curp != code.end()) {
		switch(stage) {
		case 0:
			if(*curp == '<') {
				elem.type = Element::TEXT;
				elem.data.assign(oldp, curp);
				elements.push_back(elem);
				oldp = curp + 1;
				stage = 1;
			}
			break;
		case 1:
			if(*curp == '/') {
				elem.type = Element::CLOSINGTAG;
				oldp++;
				stage = 2;
				break;
			} else
				elem.type = Element::TAG;
				
			// Fall through
		case 2:
			if(!IsAlphanumeric(*curp)) {
				elem.data.assign(oldp, curp);
				elem.data = ToLower(elem.data);
				curp = BuildParamArray(code, curp, elem.params);
				elements.push_back(elem);
				stage = 3;
				continue;
			}
			break;
		case 3:
			if(*curp == '>') {
				oldp = curp + 1;
				stage = 0;
			}
			break;
			
		}	
		curp++;	
	}
	
	if(oldp < curp) {
		elem.type = Element::TEXT;
		elem.data.assign(oldp, curp);
		elements.push_back(elem);		
	}
}