[REBOL] Re: Script Error: Cannot use add on string! value
From: richard:coffre:francetelecom at: 11-Apr-2002 8:55
Thanks Gregg for this detail, I thought about this but because I'm new in
Rebol I walk through step by step but your explanation will allow me to
speed up.
-----Message d'origine-----
De : Gregg Irwin [mailto:[greggirwin--mindspring--com]]
Envoy=E9 : mercredi 10 avril 2002 18:53
=C0 : [rebol-list--rebol--com]
Objet : [REBOL] Re: Script Error: Cannot use add on string! value
Hi Richard,
<< file: to-file ask "Filename? "
parse file [ copy output to "." ]
output: output + ".sty" >>
The + operator in REBOL is not a string concatenation operator. If you do
help +
in the console you'll see all the datatypes it supports.
Use JOIN or APPEND instead of + to concatenate strings.
You want to be careful searching for the first dot, as you are, because long
filenames can contain embedded dots and the last one is what you want.
Here's another approach, changing the value in place and using FIND/LAST.
>> file: "dummy.txt"
== "dummy.txt"
>> head change find/last file "." ".sty"
== "dummy.sty"
>> file: "dummy.2.txt"
== "dummy.2.txt"
>> head change find/last file "." ".sty"
== "dummy.2.sty"
--Gregg
