Hello, I'm new to perl.
I'm trying a regular expression that accepts register
format for assembly. (r0 - r31)
I have this regexp
$in =~ /\b[rR] ( ([0-9]) | ( [12][0-9] ) | ( 3[01]
))\b/x;
it works fine but I'm not satisfied with it.. (too
long!)
I have something in mind but I dont know the syntax
for it..
this one doesn't work as I wish it to be...
$in =~ /\b[rR] 0-31\b/x;
so my question is how do I specify a range? 0-31...
i can only do 0-9 inside [] as it seems that this
matches per character only..
thanks! and sorry if the solution is obvious to you
people
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