public Rule ParseRule()
{
string name = ParseIdent();
SkipSymbol(":=");
SpecNode call = ParseSpecNode("call");
if (call != null)
{
var res = new CallRule();
res.Name = name;
res.FuncName = call.Args[0];
res.TypeName = call.Args[1];
SpecNode args = ParseSpecNode("args");
if (args != null)
{
res.CallArgs = args.Args;
}
SkipSymbol(";");
return(res);
}
var cres = new ChainRule();
SpecNode spec_cls = ParseSpecNode("class");
if (spec_cls != null)
{
cres.ClassName = spec_cls.Args[0];
}
cres.Name = name;
cres.Chain = ParseRuleChain();
SkipSymbol(";");
return(cres);
}
private SpecNode ParseSpecNode()
{
var res = new SpecNode();
res.Func = SkipToken().Substring(1);
if (IsSymbol("("))
{
bool was = false;
NextToken();
while (!IsSymbol(")"))
{
if (was)
{
SkipSymbol(",");
}
if (Current == TokenType.LowerCaseIdent || Current == TokenType.UpperCaseIdent || Current == TokenType.StringSingle)
{
res.Args.Add(SkipToken());
}
else
{
throw CreateParseError("DAE-00356 identifier expected");
}
was = true;
}
SkipSymbol(")");
}
return(res);
}
private RuleItem ParseRuleItem()
{
SpecNode nodeid = ParseSpecNode("nodeid");
RuleItem res = ParseRuleItemCore();
if (nodeid != null)
{
res.CodeId = nodeid.Args[0];
}
return(res);
}