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Re: UK postcode regex

by Gilimanjaro (Hermit)
on Apr 21, 2005 at 13:55 UTC ( #449987=note: print w/replies, xml ) Need Help??

in reply to UK postcode regex

#!/usr/bin/perl -l $zipadidoda = 'le12 ogx'; print "In: $zipadidoda"; if( $zipadidoda =~ s/^([A-Z]{1,2}\d{1,2}[A-Z]?)\s?(O|\d)([A-Z]{2})$/uc +("$1 ".(0+$2).$3)/ie ) { print "Out: $zipadidoda"; } else { print "Invalid zipcode"; }

You wanted a single re, so you got one!

Or is the 'e' modified considered cheating?


Update: removed redundant quotes

Update: and fixed the space after a tip from ww

Replies are listed 'Best First'.
Re^2: UK postcode regex
by Roy Johnson (Monsignor) on Apr 21, 2005 at 14:10 UTC
    A cheat that lets you avoid the /e cheat:
    s/^([A-Z]{1,2}\d{1,2}[A-Z]?)\s?(O|\d)([A-Z]{2})$/\U$1 ${\(0+$2)}$3/i

    Caution: Contents may have been coded under pressure.
Re^2: UK postcode regex
by ww (Archbishop) on Apr 21, 2005 at 15:35 UTC
    Gilimanjaro: your regex strips the space between segment_one and the last_three, if one exists, whereas OP sought to insert one, if there was no space before \d[A-Za-z]{2}
      You're right! Fixed in an update...

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