Argh.. typo, I meant a=. 1 3 :'a=:y' 1 for the approach that will work.
Sorry about that. -- Raul On Mon, Oct 31, 2011 at 1:41 PM, Raul Miller <[email protected]> wrote: > If you do this: > > a=. 1 > a=: 1 > > That will fail. But you can work around this by doing > > a=. 1 > 3 :'a=.y' 1 > > If that was not what you were asking about, perhaps you could clarify > your question? > > And a compare and a contrast with private methods in OO should, I > think, wait until you have a deeper understanding of the language. > (You can use local names like private OO members but there's a lot of > subtleties that I think should be addressed when making this kind of > comparison, and =. names are more like local variables of a block -- > though it's true that they they can be verbs.) > > -- > Raul > > On Mon, Oct 31, 2011 at 1:30 PM, Andrew Pennebaker > <[email protected]> wrote: >> Raul, does that mean =: declarations that depend on =. declarations will >> still work? Are =. like private methods in OO? >> >> Cheers, >> >> Andrew Pennebaker >> www.yellosoft.us >> >> On Mon, Oct 31, 2011 at 7:45 AM, Raul Miller <[email protected]> wrote: >> >>> [Sent to programming forum, Bcc to beta forum. If you respond, please >>> do so in programming.] >>> >>> Yes: >>> >>> =: definitions survive in the current locale (which defaults to 'base'). >>> >>> =. definitions end when the current explicit context ends. >>> >>> 'load' happens in a local context (which was generated specifically to >>> intercept =. definitions in the loaded file). >>> >>> -- >>> Raul >>> >>> On Mon, Oct 31, 2011 at 12:55 AM, Andrew Pennebaker >>> <[email protected]> wrote: >>> > I think I understand, but I want to put it in my words to double-check. >>> > >>> > Declarations that are to be exposed to code that loads this J file should >>> > use =: for assignment, and local declarations inside of code blocks >>> should >>> > use =. Right? >>> > >>> > Cheers, >>> > >>> > Andrew Pennebaker >>> > www.yellosoft.us >>> > >>> > On Sun, Oct 30, 2011 at 10:18 PM, Don Guinn <[email protected]> wrote: >>> > >>> >> In immediate mode it makes no difference. With explicit verbs or >>> whatever >>> >> names which are to be retained after the verb finishes should be >>> assigned >>> >> using global copula (=:). Other assignments in the definition should be >>> >> local (=.) so the names go away after the verb ends. That way the names >>> >> don't clutter up your work space and possibly accidentally overwrite a >>> name >>> >> you want to retain. >>> >> >>> >> On Sun, Oct 30, 2011 at 7:13 PM, Andrew Pennebaker < >>> >> [email protected]> wrote: >>> >> >>> >> > Thanks Don. If there's no particular reason to use globals, should I >>> use >>> >> =. >>> >> > every place in my code? >>> >> > >>> >> > Cheers, >>> >> > >>> >> > Andrew Pennebaker >>> >> > www.yellosoft.us >>> >> > >>> >> > On Sun, Oct 30, 2011 at 5:03 PM, Don Guinn <[email protected]> >>> wrote: >>> >> > >>> >> > > =: is a global copula. =. is a local copula within explicit >>> >> definitions. >>> >> > In >>> >> > > immediate mode or not enclosed in an explicit definition is the >>> same as >>> >> > =: >>> >> > > . Need to be aware that if you use "load" that puts the script >>> within >>> >> an >>> >> > > explicit definition. So =. produces a local definition that >>> disappears >>> >> > when >>> >> > > the "load" verb ends. >>> >> > > >>> >> > > On Sun, Oct 30, 2011 at 2:37 PM, Andrew Pennebaker < >>> >> > > [email protected]> wrote: >>> >> > > >>> >> > > > What's the difference between =: and =. ? >>> >> > > > >>> >> > > > Cheers, >>> >> > > > >>> >> > > > Andrew Pennebaker >>> >> > > > www.yellosoft.us >>> >> > > > >>> >> > > > 2011/10/30 Björn Helgason <[email protected]> >>> >> > > > >>> >> > > > > happy=.0 >>> >> > > > > > happy # <'clap hands' >>> >> > > > > >>> >> > > > > happy=.1 >>> >> > > > > > happy # <'clap hands' >>> >> > > > > clap hands >>> >> > > > > >>> >> > > > > >>> >> > > > > 2011/10/30 Andrew Pennebaker <[email protected]> >>> >> > > > > >>> >> > > > > > J won't let me write if. ... end. by itself; it must be >>> enclosed >>> >> > in a >>> >> > > > > > function definition. E.g., I'd like to do this: >>> >> > > > > > >>> >> > > > > > if. happy do. >>> >> > > > > > clapHands >>> >> > > > > > end. >>> >> > > > > > >>> >> > > > > > Rather than: >>> >> > > > > > >>> >> > > > > > arewehappy =: monad : 0 >>> >> > > > > > if. happy do. >>> >> > > > > > clapHands >>> >> > > > > > end. >>> >> > > > > > ) >>> >> > > > > > >>> >> > > > > > arewehappy 0 >>> >> > > > > > >>> >> > > > > > Can we add the ability to do the former to J? >>> >> > > > > > >>> >> > > > > > By the way, what's the preferred notation for long variable >>> and >>> >> > > > function >>> >> > > > > > names? camelCase? with_underscores? >>> >> > > > > > >>> >> > > > > > Cheers, >>> >> > > > > > >>> >> > > > > > Andrew Pennebaker >>> >> > > > > > www.yellosoft.us >>> >> > > > > > >>> >> > > >>> ---------------------------------------------------------------------- >>> >> > > > > > For information about J forums see >>> >> > > http://www.jsoftware.com/forums.htm >>> >> > > > > > >>> >> > > > > >>> >> > > > > >>> >> > > > > >>> >> > > > > -- >>> >> > > > > Björn Helgason, Verkfræðingur >>> >> > > > > Fornustekkum II >>> >> > > > > 781 Hornafirði, >>> >> > > > > t-póst: [email protected] >>> >> > > > > gsm: +3546985532 >>> >> > > > > twitter: @flugfiskur >>> >> > > > > http://groups.google.com/group/J-Programming >>> >> > > > > >>> >> > > > > >>> >> > > > > Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari >>> >> > > einfaldleikans >>> >> > > > > >>> >> > > > > góður kennari getur stigið á tær án þess að glansinn fari af >>> skónum >>> >> > > > > /|_ .-----------------------------------. >>> >> > > > > ,' .\ / | Með léttri lund verður | >>> >> > > > > ,--' _,' | Dagurinn í dag | >>> >> > > > > / / | Enn betri en gærdagurinn | >>> >> > > > > ( -. | `-----------------------------------' >>> >> > > > > | ) | (\_ _/) >>> >> > > > > (`-. '--.) (='.'=) ♖♘♗♕♔♙ >>> >> > > > > `. )----' (")_(") ☃☠ >>> >> > > > > >>> >> > ---------------------------------------------------------------------- >>> >> > > > > For information about J forums see >>> >> > http://www.jsoftware.com/forums.htm >>> >> > > > > >>> >> > > > >>> >> ---------------------------------------------------------------------- >>> >> > > > For information about J forums see >>> >> http://www.jsoftware.com/forums.htm >>> >> > > > >>> >> > > >>> ---------------------------------------------------------------------- >>> >> > > For information about J forums see >>> http://www.jsoftware.com/forums.htm >>> >> > > >>> >> > ---------------------------------------------------------------------- >>> >> > For information about J forums see >>> http://www.jsoftware.com/forums.htm >>> >> > >>> >> ---------------------------------------------------------------------- >>> >> For information about J forums see http://www.jsoftware.com/forums.htm >>> >> >>> > ---------------------------------------------------------------------- >>> > For information about J forums see http://www.jsoftware.com/forums.htm >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
