dmd support for IDEs and the D tool chain

[Nick Sabalausky]

"Ellery Newcomer" <ellery-newcomer at utulsa.edu> wrote in message 
news:hbcq8b$avf$1 at digitalmars.com...
>
> Does GOLD let you manually specify how to resolve the ambiguities? Cuz
> you're going to have them with D, and murphy says they're going to be
> reduce-reduce :)
>

No. Reduce-reduce are errors and require adjusting the grammar accordingly, 
and shift-reduce require either accepting the "resolve by assuming shift" or 
adjusting the grammar.

> All in all, she sounds pretty sweet. Maybe I'll try porting my D grammar
> to GOLD when I'm past exams.
>
> By the way, do you know if there be any way to put conditional
> productions in GOLD grammars? Like if you wanted to have a grammar that
> recognizes D1 or D2 dependent on a settable flag?

Not possible at this time, unfortunately.

>
> Wait wait wait wait, just looked on wikipedia, GOLD uses DFAs for
> lexing??!!! Please tell me she can do context sensitive lexers,
> otherwise how are you going to get perl-style strings let alone nesting
> comments?

For anything that GOLD doesn't normally support (such as nested comments, 
more than one pair of block-comments, or indentation increase/decrease), it 
has a kludge called "Virtual Terminals" ( 
http://www.devincook.com/goldparser/doc/meta-language/virtual-terminals.htm  
). These let you declare a terminal, but then leave it up to the lex/parse 
engine (ex, Goldie) to identify it however it sees fit. I plan to add a 
number of very useful ones to Goldie (such as nested comments). I also plan 
to make an alternate implementation of GOLD that will fill in some of the 
missing features.