Scratch the question about using nl_z_. Wasn't really thinking.
On Sun, Sep 25, 2011 at 2:27 PM, Don Guinn <[email protected]> wrote: > Agreed. But for completeness "nl" should list these names if they are > defined globally, particularly to avoid confusing new users. If (4!:1) is > run tacitly then the names can be listed. Starting from the definition of > "nl", something like the following accomplishes this. > By the way. Noticed that the definition of "names" is defined as (list_z_ @ > nl). Shouldn't it be (list_z_ @ nl_z_)? > > NB.*nl v selective namelist > NB. Form: [mp] nl sel > NB. > NB. sel: one or more integer name classes, or a name list. > NB. if empty use: 0 1 2 3. > NB. mp: optional matching pattern. If mp contains '*', list names > NB. containing mp, otherwise list names starting mp. If mp > NB. contains '~', list names that do not match. > NB. > NB. e.g. 'f' nl 3 - list verbs that begin with 'f' > NB. '*com nl '' - list names containing 'com' > nl1=.(([:4!:1])&(]`(0 1 2 3"_)@.(0=#))) :: cutopen_z_ > nl=:(nl1 : ((4 : 0)nl1)) f. > if. 0 e. #y do. y return. end. > if. #t=. x -. ' ' do. > 'n s'=. '~*' e. t > t=. t -. '~*' > b=. t&E. &> y > if. s do. b=. +./"1 b > else. b=. {."1 b end. > y=. y #~ n ~: b > end. > ) > On Sun, Sep 25, 2011 at 11:16 AM, Raul Miller <[email protected]> wrote: >> >> On Sat, Sep 24, 2011 at 5:53 PM, Christopher McIntosh >> <[email protected]> wrote: >> > When defining global variables named "x" or "y" they do not show up when >> > using the *names* verb (and its associated verb, *nl*) from the z >> > library. >> >> Arguably, it's bad practice to use global values with any of these names: >> m n u v x y >> >> These names have special meanings for J, and using them globally is >> likely to confuse people. >> >> -- >> Raul >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
