[REBOL] Re: Perl is to stupid to understand this 1 liner.
From: petr:krenzelok:trz:cz at: 14-Dec-2001 14:41
Hi,
Carl used parse without any need to define a rule, e.g. parse some-string
none will give you a block of strings separated by space
But why not to use rule? Because of having everything on one line? OK, with
rebol - it is pretty legal to have whole script on one line (if you don't
use comments of course :-), so:
digits: charset "0123456789"
spacer: #"-"
tel-num: [3 digits spacer some [digits | spacer]]
parse/all text [some [start: tel-num end: (print copy/part start end) |
skip]]
555-1212
800-555-1111
123-4576
987-6543
111-1111
== true
I know that tel-num rule allows for some 999------, but that is sufficient
for our demo ... Just put on one line, shorten word names, and replace
rebol code in parens to get your result ...
If someone finds easier solution (e.g. iteration based) for my string
replacement, cool then :-)
hide-it: func [s e][ l: length? copy/part s e remove/part s e insert/dup s
#
l)
parse/all text [some [start: tel-num end: (hide-it) | skip]]
; <----- clear and readable, isn't it? :-) Well, on the other hand not so
straightforward as your Perl example ...
Cheers,
-pekr-
