[REBOL] Re: Reverse Parsing
From: al:bri:xtra at: 28-Sep-2001 8:25
> Is there an easy, obvious, way that I can't see to parse backwards with
alternation capabilities? For example, I want to find the last word typed,
so I search backwards from the caret position looking for any [tab space
return]. I can search backwards with find, but it doesn't allow alternation
(does it?). I can parse forwards, ignoring all but the last item I find, but
is that the best approach?
Would reverse-ing the string first, then parse-ing work for you?
>> s: "a word at last ^-"
== "a word at last ^-"
>> head reverse s
== "^- tsal ta drow a"
Andrew Martin
ICQ: 26227169 http://zen.scripterz.org
