Re: delayed evaluation

Under CM, the easiest way is to simply name your file something.lml.
Otherwise you can specify the tool class explicitly:

    something.sml : lazysml

This is equivalent to enabling the "lazy" tool option for
class "sml", i.e.:

    something.sml : sml (lazy)

or simply

    something.sml (lazy)

To enable lazysml permanently in the interactive system, start
sml with the command-line switch "-Cparser.lazy-keyword=true":

    sml -Cparser.lazy-keyword=true

This has the effect of setting Control.lazysml to true at startup.

Matthias

On Aug 26, 2005, at 10:16 AM, John Reppy wrote:

> Do you have Control.lazysml set to true?  If you are using CM to  
> compile
> your source, then there is some magic to enable the lazy features, but
> I'm not sure what it is off hand.  The documentation should explain,
> or you can ask Matthias ([email protected]).
>
>     - John
>
> On Aug 24, 2005, at 12:07 AM, Jacques wrote:
>
>
>> I managed to get around the compiler flag by using the build  
>> manager cm,
>> though if anyone has any insight as to how to get around that it  
>> would
>> be great. However, I was wondering how I could write something like
>>
>>
>> val rec lazy fibs = scons(1,(scons(1,addStreams fibs (tail fibs))))
>>
>> where addStreams takes 2 streams and adds them and scons takes a  
>> value
>> and a stream and returns a new stream. This gives me the syntax error
>>
>> /tmp/sml11246KJy:9.14 Error: syntax error: inserting  EQUALOP
>>
>> thanks for any help!
>> --Jacques
>>
>>
>>
>>
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>
>
>
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September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices
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