Math-Parser

[Timon Gehr via Digitalmars-d-learn]

On 05/03/2014 12:34 AM, Tim Holzschuh via Digitalmars-d-learn wrote:
>
> Most probably this isn't a wrong use of something D-specific

Some of the problems are:

@property Lexer lexer() pure { return _lexer; }

If you change the result of a call to 'lexer' this will not change 
'_lexer'. Mark the property 'ref' or get rid of it


if( !previous && !token.type == TokenType.end )
     popFront();

=>

if(!previous && token.type != TokenType.end) popFront();


Let me know if you also want hints on how to get the logic right.