C++ StringList::join方法代码示例

string keywordReturn(MavenCompiler* c, string line) {
	// we have to be in a function to use this
	if(c->currentFunction == "") {
		pushError(c, "Can not return out of non-function");
		return MAVEN_INVALID;
	}
	
	// it could be a void return
	if(line.length() == 6)
		return "return";
	
	StringList types;
	MavenMutability mut;
	string newCode = dissectCode(c, line.substr(7, line.length() - 7), types, mut);
	
	// check the return type matches the function its in
	int nID = findNamespaceID(c, c->currentNamespace);
	smartAssert(nID >= 0);
	int oID = findObjectID(c, nID, c->currentClass);
	smartAssert(oID >= 0);
	
	for(int i = 0; i < c->namespaces->at(nID).objects->at(oID)->functions->length(); ++i) {
		if(c->namespaces->at(nID).objects->at(oID)->functions->at(i).name == c->currentFunction) {
			if(canCastBetween(c, types.join(","), c->namespaces->at(nID).objects->at(oID)->functions->at(i).returnType)) {
				return "return " + newCode;
			} else {
				pushError(c, "Can not cast return type %s to %s", types.join(","),
						  c->namespaces->at(nID).objects->at(oID)->functions->at(i).returnType);
				return MAVEN_INVALID;
			}
		}
	}
	
	// if it gets to here something really bad has gone wrong
	return MAVEN_INVALID;
}

string unresolveMavenPath(MavenCompiler* c, string path) {
	// remove "$static", "->a", spaces and brackets
	while(path.find("$static") != string::npos)
		path = path.erase(path.find("$static"), strlen("$static"));
	while(path.find("->a") != string::npos)
		path = path.erase(path.find("->a"), strlen("->a"));
	while(path.find(" ") != string::npos)
		path = path.erase(path.find(" "), strlen(" "));
	while(path.find("(") != string::npos)
		path = path.erase(path.find("("), strlen("("));
	while(path.find(")") != string::npos)
		path = path.erase(path.find(")"), strlen(")"));
	
	// finalise
	StringList parts = split("::", path);
	return parts.join(".");
}

Path& Path::normalize()
{
	StringTokenizer tokenizer(_path);
	tokenizer.onCharset("/");

	std::string elem;

	StringList parts;

	while(tokenizer.next(elem))
	{
		if(elem == ".." && ! parts.empty())
			parts.pop();
		else if(elem != ".")
			parts << elem;
	}

	_path = parts.join('/');

	return *this;
}

String HaxeMessageSyntax::readValue(String message, Ref<Token> token)
{
	if (token->firstChild()) {
		StringList list;
		Ref<Token> child = token->firstChild();
		int i = token->i0();
		while (child) {
			if (i < child->i0())
				list.append(message->copy(i, child->i0()));
			String s;
			if (child->keyword() == gt_) s = ">";
			else if (child->keyword() == lt_) s = "<";
			else s = message->copy(child->i0(), child->i1());
			list.append(s);
			i = child->i1();
			child = child->nextSibling();
		}
		if (i < token->i1())
			list.append(message->copy(i, token->i1()));
		return list.join();
	}
	else
		return message->copy(token->i0(), token->i1());
}