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Un-hex
#!/usr/bin/perl
#
# un-hex - convert a hexadecimal encoded url (i.e. with % signs) to ASCII
# By John
#
while (<>) {
chomp() ;
s/[%=]([A-F0-9][A-F0-9])/pack("C", hex($1))/egi;
print "$_\n";
}
