[REBOL] Re: newbie parsing question
From: arolls:bigpond:au at: 4-Mar-2001 14:23
> I've got an <IMG SRC=""> tag, and I'd like to parse the filename
> in the SRC
> attribute.
> The format of the filename is : /some-path/AAA00000s0.jpg or
> /some-path/AAA00000s00.jpg where A is a character [A-Z], and 0
> represents
> a digit. I want to grab the one or two digits following the 's'.
a: "/some-path/AAA00000s12.jpg"
parse a [some [thru "/"] copy filename thru ".jpg"] ; get the filename
filename ;== "AAA00000s12.jpg"
Now extend the above to parse the filename:
alpha: charset "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
digit: charset "0123456789"
parse a [some [thru "/"] copy filename thru ".jpg"
(parse filename [3 alpha 5 digit "s" copy n to "."])]
n ;== "12"
Regards,
Anton.
