Reading Ric's 2010-June post, I see that jpathsep is provided now in both j602 and j701.
So I guess that's the standard to use for a cross-platform utility? On Fri, Nov 25, 2011 at 8:07 AM, Ric Sherlock <tikk...@gmail.com> wrote: > The following post describes how some of my thoughts on cross-version, > cross-OS support of path speparators. > > http://www.jsoftware.com/pipermail/beta/2010-June/004045.html > > On Fri, Nov 25, 2011 at 8:48 PM, Ian Clark <earthspo...@gmail.com> wrote: >> PATHSEP_j_ does not exist in J7, it seems. >> >> Back to the drawing board. I shall revert to the first technique I >> tried, shabby though it is: I'll actually look for '\' and if it's not >> there I'll assume '/'. >> >> >> >> On Tue, Nov 22, 2011 at 7:16 AM, bob therriault <bobtherria...@mac.com> >> wrote: >>> PATHSEP_j_ may be what you are looking for Ian. It is set at startup from >>> the j602\bin\profile.ijs and is referenced in numerous verbs such as >>> jhostpath_z_ and jpath_z_ >>> >>> Cheers, bob >>> >>> On 2011-11-21, at 10:24 PM, Ian Clark wrote: >>> >>>> Does J (all versions, maybe stripped-down) maintain a dependable noun >>>> in _z_ or _j_ giving the file path separator, viz '/' or '\' ? >>>> >>>> Or should I always simply use? -- >>>> IFWIN{'/\' >>>> >>>> Does anyone know of a J-supported platform that uses anything other >>>> than '/' or '\' ? (The Mac used to use ':' but now accepts Unix's '/' >>>> pretty well everywhere.) >>>> >>>> And does IFWINCE imply IFWIN? >>>> >>>> I'm using tricks all over the place that empirically work -- but >>>> what's the set-in-stone convention for a widely-distributed utility? >>>> >>>> Here's the technique I propose to standardize on, for any utility >>>> script which needs to know where it resides: >>>> >>>> MYPATH=: 3 : 0 '' >>>> NB. returns directory containing this script >>>> NB. also assigns two globals: >>>> NB. WHEREAMI -the folder in question >>>> NB. SEP -the platform-dependent separator >>>> ws=. [: 'Not from script'"_`({ 4!:3@(0&$))@.(0&<:) [: 4!:4 [: < > >>>> WHEREAMI=: '<UNSET>' NB. needed for ws to work with >>>> z=. >ws 'WHEREAMI' >>>> SEP=: '/\' {~ '\' e. z NB. '\' present--> MSWin path conventions >>>> WHEREAMI=: (>: z i: SEP) {.z >>>> ) >>>> >>>> Any comments on its generality, style, redundancy, potential to break, etc? >>>> ---------------------------------------------------------------------- >>>> 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
