Jack Ort wrote:
> s2i =: 6 s: s:
> s2i ' NY'
>to return the corresponding code value (2) [...]
Mind you: that will return a singleton list with the corresponding code.
> [...] and use that to query.
which can, depending on the code you use, propagate into a singleton
result list. Just something one should be aware of.
>But what if I want to see all my coded strings, to find out if a string has
>been coded already?
All symbols are in a common pool. A symbol which is present might
be present because your application used it, because some library
used it, or because both did. There is no way to tell the origin
of a symbol, and I wouldn't base my code on a symbol's status.
I simply assume that "all symbols are there", used or not, just like
I don't care whether the character vector 'foo' has been ever
used by me before.
Martin
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm