Hi,
I'd like to merge this into the main repository, i see that it is copyright
you, would you like to make it available to us with BSD license like the
other factorcode?
Thanks,
John.
On Wed, Nov 13, 2013 at 4:58 PM, CW Alston <[email protected]> wrote:
> A good point, Björn -
>
> Since the number of elements is known beforehand in mdutil & mdls, an
> immutable array
> would suffice (& use less words). I carried the vector format over from a
> previous incarnation
> of <md-command>, where I didn't know how many elems would be needed in the
> array.
>
> I'm not religious about mutating data structures, but your suggestion
> makes the code more succinct.
>
> Thanks,
> ~cw
>
>
> On Wed, Nov 13, 2013 at 5:04 AM, Björn Lindqvist <[email protected]>wrote:
>
>> Here are some random tips from me. I'm also a Factor newbie so take it
>> with a grain of salt:
>>
>> * Don't use vectors because normal sequences works just as well.
>> * Be functional! Avoid words that mutate data structures because they
>> make the code harder to reason about.
>>
>> F.e. this piece of code in mdls:
>>
>> "mdls" 1vector swap suffix!
>>
>> can be written as just:
>>
>> "mdls" swap 2array
>>
>> Another example is your mdutil word:
>>
>> :: (mdutil) ( flags on|off volume root/owner -- seq )
>> root/owner 1vector "-" flags append suffix!
>> "-i" suffix! on|off suffix! volume suffix!
>>
>> It's a great showcase for local variables but can be better written
>> without array mutations:
>>
>> :: mdutil ( flags on|off volume root/owner -- seq )
>> root/owner flags "-" prepend "-i" on|off volume 5 narray
>>
>>
>> 2013/11/13 CW Alston <[email protected]>:
>> > I've posted a new gist for spotlight.factor w/ filename & Factor
>> > formatting.
>> > I think I dealt with most of Alex's red-lines, & I shed the string
>> > constants.
>> > The whole thing is much shorter. The included examples work on my
>> machine.
>> >
>> > The file can be USE:d from the listener if you give it a folder in your
>> > 'work'.
>> >
>> > After a long divagation, looks like I've wound up back where John &
>> Alex
>> > suggested I start, 3 weeks ago. Well, like I was warned in the Boy
>> Scouts,
>> > when you wander lost in the woods, you tend to go 'round in circles.
>> > Just couldn't see how to get on from there without a compass (or native
>> > guides),
>> > & I did learn a lot along the way. Still needs some improvement (maybe
>> bug
>> > fixes, too).
>> >
>> > In particular, I'd like to memoize an API call to
>> > MDSchemaCopyAllAttributes(),
>> > but I'm better at Chinese than C. Pointers on alien-invoke, or what
>> else to
>> > use?
>>
>>
>>
>> --
>> mvh/best regards Björn Lindqvist
>>
>
>
>
> --
> *~ Memento Amori*
>
>
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