Arc's out!

[pozorvlak]

http://arclanguage.org/

Well, that makes the "which language shall I learn next" question rather easier...

First impressions (based on reading the tutorial rather than playing with it): I like it. It embodies PG's philosophy that a language should get out of your way and let you shoot yourself in the foot because one day, you might need to do tarsal surgery and only have a pistol to hand. In many respects, it's the anti-Haskell: it encourages you to put off the decision of how to represent your data as long as possible. Here's a feature along those lines that I liked: indexes into data-structures are indistinguishable from function calls. So if I write

(foo 0)

you have no way of knowing if foo is a list, a string or a function. Evaluation is strict by default, which I think is a net loss (but you've got macros, so it's swings and roundabouts, I suppose). The anaphoric (pronoun-introducing) macros from On Lisp are included by default - I've found pronouns to be very useful in Perl, so this can only be a Good Thing. I was amused to see that most of the language is defined in Arc, and that PG seems to think that this is a bold and novel experiment :-)

Comments

[necaris.livejournal.com]

indexes into data structures are indistinguishable from function calls
Ooh! That sounds interesting! Possibly really confusing though?

From the website: Arc is designed above all for exploratory programming: the kind where you decide what to write by writing it
My favorite kind :-) Perhaps I should venture in there too...

[totherme.livejournal.com]

I'd be interested in your opinion of PLT-Scheme in this context. Are there any obvious reasons why one is better than the other? For scripting? For exploratory programming?

[sable-veins.livejournal.com]

My O my! Whenever I read these sorts of posts, I just don't understand a solitary thing! They do have some most terrific words in 'em, though!

[totherme.livejournal.com]

Incidentally, did you know about Q?

it was brought to my attention by this post on planet.haskell.

A quick google for "K2 Language" failed to find any clues about the other terse language mentioned.

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