I came across this statement as code, on a programming puzzle web site.
(i. >./) (0 >. +)/@:|.\ a
Wondering, what language has these type of syntax?
A:
APL had that sort of syntax. Not that exact syntax but near the same level of readability. Did the web site not offer a clue?
Forth, as well, had similar syntax (R> . .@) but it still tended to have spaces between words, unlike your sample.
Update:
Actually, it does look like APL or a variant thereof. See this link here for the line:
(i. >./) z NB. Hook. Linear index of pivot
The comments at the top of that file:
NB. AMENDMENT: "A Change for the Better"
NB. Vector, vol. 9, No. 3 (January 1993) p.134-140. Used J Version 5
NB. x i} m Amend was amended in Version 4 and further amended
NB. in J Release 2
NB. Executes with J Release 2.05, March 1995
so it's the J variant of APL. See here if you want to enhance your migraines.
paxdiablo
2009-06-11 07:23:23
APL seemed likely but @ isn't in their symbols. http://en.wikipedia.org/wiki/APL_(programming_language)#APL_symbols_and_keyboard_layout
John T
2009-06-11 07:26:38
Might be J, an APL descendant.
Joey
2009-06-11 07:34:00
A:
K has some really weird syntax. Also, on the list are APL, R and some other weird languages, which are pretty powerful for their purposes, and in some cases, use their own character set. My guess would be that this is closer to K than anything else.
Ryan Oberoi
2009-06-11 07:24:30
+6
A:
That's probably the J programming language. For example, here's a page that mentions the (i. >./) idiom
(I wanted to say Perl as a joke ;)
swampsjohn
2009-06-11 07:28:33
I thought that page was opaque until I wandered around the rest of the site. Not only do they want a language to be as terse as possible, but they seem to apply the same style guide to the documentation. They named the user manual "Usr", for instance.
RBerteig
2009-06-11 08:58:37