[Jprogramming] Re: Tacit adverb definitions?

[Samuel Tardieu]

Thanks Dan, Mark and others for your very useful replies.

The question arose the other morning when, while taking my breakfast,
I wrote a few Forth stack-manipulating words waiting for my coffee to
get colder.

A lot of Forth words manipulate the two top elements of the stack
(represented as a rank 1 data structure), so instead of writing the
monadic 'plus' word as:

  plus =: _2&}. , _2&{ + {:

I made an oper adverb to factorize everything but the '+'

  oper  =: 1 : '_2&}. , _2&{ u {:'
  plus  =: + oper
  minus =: - oper
  swap  =: (],[) oper

and so on.

Being a big fan of tacit programming (more precisely of variable-less
programming), I wondered whether adverbs such as 'oper' could be written
tacitely or not.

  Sam
-- 
Samuel Tardieu -- sam at rfc1149.net -- http://www.rfc1149.net/