Zugg Software :: View topic - reversing a string or searching from the back

Wanderer Joined: 19 Apr 2001 Posts: 59 Location: USA

Is there a simple function to search for a character from the back of a string, like "%pos" but the other way around, or else is there a way to invert a string, so that %pos would effectively be working from the back.

Basically I am writing a script to word wrap descriptions that are input as a long string, into seperate lines no more than 80 characters long.

My method would have been to use the %left function to get 80 characters, then search back for a " ", then split the long string at that point.

Any elegant solutions available?

Regards
Marts

GURU Joined: 23 Dec 2000 Posts: 4834 Location: USA

You probably want to go another route that works with the lengths of each word instead of the positions of whitespace:

Line.original = your long string
Line.new = "" //will contain wrapped version of original
line.wraplength = 80
line.current = "" //will contain one line's worth of text from original
#noop
#forall %replace(@Line.original," ", "|") {#if ((%len(%concat(@Line.current," ",%i)) <= @Line.wraplength) {Line.current = %concat(%trimleft(@Line.current)," ",%i)} {Line.new = %concat(@Line.new,"%cr",@Line.current);Line.current = ""}}

As always, it's untested and not guaranteed to work.