example how a for statement is declared
http://seed7.sourceforge.net/examples/declstat.htm

ok i know that seed is an interpreter language but maybe there is a way walter can allow something like this for his buildin statements

or even better the case statement

http://seed7.sourceforge.net/manual/stats.htm#case-statement

as a statement-template wich can produce (with the help of the awaited static foreach) a nice objectfactory from a tuple or something like this

ciao denni

"dennis luehring" <dl.soluz@gmx.net> wrote in message news:esncoo$pid$1@digitalmars.com...
> example how a for statement is declared http://seed7.sourceforge.net/examples/declstat.htm
>
> ok i know that seed is an interpreter language but maybe there is a way walter can allow something like this for his buildin statements
>
> or even better the case statement
>
> http://seed7.sourceforge.net/manual/stats.htm#case-statement
>
> as a statement-template wich can produce (with the help of the awaited static foreach) a nice objectfactory from a tuple or something like this
>
> ciao denni

Stuff like this has been requested several times, but the same problem prevents these suggestions from being implemented: they break the separation of syntactic and semantic analysis.  This increases the complexity of the compiler greatly.

Now, some level of "custom code" may become available if/when D gets Lisp-style macros, which will (hopefully) allow for custom generation and reorganization of code by other code.

Jarrett Billingsley wrote:
> "dennis luehring" <dl.soluz@gmx.net> wrote in message news:esncoo$pid$1@digitalmars.com...
>> example how a for statement is declared
>> http://seed7.sourceforge.net/examples/declstat.htm
>>
>> ok i know that seed is an interpreter language but maybe there is a way walter can allow something like this for his buildin statements
>>
>> or even better the case statement
>>
>> http://seed7.sourceforge.net/manual/stats.htm#case-statement
>>
>> as a statement-template wich can produce (with the help of the awaited static foreach) a nice objectfactory from a tuple or something like this
>>
>> ciao denni
> 
> Stuff like this has been requested several times, but the same problem prevents these suggestions from being implemented: they break the separation of syntactic and semantic analysis.  This increases the complexity of the compiler greatly.
> 
> Now, some level of "custom code" may become available if/when D gets Lisp-style macros, which will (hopefully) allow for custom generation and reorganization of code by other code. 
> 

You should be able to do this now with mixins, although its not the neatest way to do things.

-Joel

http://www.maier-komor.de/metac/

http://seed7.sourceforge.net/index.htm

seed7 is also a compiler! and i use it, after comming from D, with great pleasure.





On Wednesday, 7 March 2007 at 22:02:00 UTC, dennis luehring wrote:
> example how a for statement is declared
> http://seed7.sourceforge.net/examples/declstat.htm
>
> ok i know that seed is an interpreter language but maybe there is a way walter can allow something like this for his buildin statements
>
> or even better the case statement
>
> http://seed7.sourceforge.net/manual/stats.htm#case-statement
>
> as a statement-template wich can produce (with the help of the awaited static foreach) a nice objectfactory from a tuple or something like this
>
> ciao denni