//private void SkipSpaceLine()
//{
// while (tape.HasCurrent)
// {
// if (tape.Current.Count == 0)
// {
// tape.MoveNext();
// }
// else
// {
// break;
// }
// }
//}
private bool IsSectionHead(LineTokenCollection ltc)
{
if (ltc.Count < 2)
{
return(false);
}
int bracketCounter = 0;
for (int i = 0; i < ltc.Count; i++)
{
LexToken token = ltc.Get(i);
if (token.IsKind(TokenKindSymbol.LBS))
{
bracketCounter++;
}
else if (token.IsKind(TokenKindSymbol.RBS))
{
bracketCounter--;
}
else if (token.IsKind(TokenKindSymbol.Colon))
{
if (bracketCounter == 0)
{
return(true);
}
}
}
return(false);
}
public object ParseCurrent()
{
if (!tape.HasCurrent)
{
return(null);
}
//Debugr.WriteLine(tape.Current.ToString());
//if (tape.Current.ToString().IndexOf("之和")!=-1)
//{
// Debugr.WriteLine(tape.Current.ToString());
//}
BuildCurrentLineTape();
LexToken firstToken = currLineTokenTape.First;
if (firstToken.IsKind(TokenKindKeyword.IF))
{
StmtRaw stmt = ParseIf();
return(stmt);
}
else if (firstToken.IsKind(TokenKindKeyword.Dang))
{
StmtRaw stmt = ParseWhile();
return(stmt);
}
else if (firstToken.IsKind(TokenKindKeyword.Repeat))
{
StmtRaw stmt = ParseRepeat();
return(stmt);
}
else if (firstToken.IsKind(TokenKindKeyword.Loop))
{
StmtRaw stmt = ParseForeach();
return(stmt);
}
else if (firstToken.IsKind(TokenKindKeyword.Catch))
{
StmtRaw stmt = ParseCatch();
return(stmt);
}
else
{
List <StmtRaw> stmts = ParseStmtCall();
return(stmts);
}
}
private void ParseUseClass(SectionUseRaw ast, List <LexToken> sourceTokens)
{
ImportPackageRawParser packageParser = new ImportPackageRawParser();
for (int i = 0; i < sourceTokens.Count; i++)
{
LexToken token = sourceTokens[i];
if (token.IsKind(TokenKindKeyword.Ident))
{
ast.Parts.Add((LexTokenText)token);
}
else if (token.IsKind(TokenKindSymbol.Comma))
{
}
else
{
error(token, string.Format("使用的'{0}'不是正确的类型名称", token.Text));
}
}
}
private Exp ParseDi()
{
ExpDi diexp = new ExpDi(this.ExpContext);
diexp.KeyToken = (LexTokenText)Tape.Current;
diexp.SubjectExp = PopChainsExp();
MoveNext();
diexp.ArgExp = ParseExpect_Exp_Var();
if (Tape.HasCurrent == false)
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少‘个’匹配");
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少元素类型名称");
}
else
{
if (Tape.Current is LexToken)
{
LexToken tok1 = (LexToken)Tape.Current;
if (tok1.IsKind(TokenKindKeyword.Ge))
{
diexp.GeToken = (LexTokenText)tok1;
MoveNext();
}
else
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少‘个’匹配");
}
}
else
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少‘个’匹配");
}
var data = Tape.Current;
if (featurer.IsThisClassName(data) || featurer.IsImportTypeName(data))
{
Exp exp = ParseTypes();
diexp.ElementTypeExp = exp;
}
else
{
this.ExpContext.FileContext.Errorf(diexp.KeyToken.Position, "‘的’后面缺少元素类型名称");
}
}
return(diexp);
}
private bool isBracketEnd(LexToken tok)
{
return(tok.IsKind(TokenKindSymbol.EOF, TokenKindSymbol.Semi, TokenKindSymbol.RBS));
}
public bool IsCompareOp(LexToken tok)
{
return(tok.IsKind(TokenKindSymbol.GT, TokenKindSymbol.LT, TokenKindSymbol.GE,
TokenKindSymbol.LE, TokenKindSymbol.NE, TokenKindSymbol.EQ));
}
