The regex is looking for a ~ anywhere in $key, while it sounds like what you want is to compare against the entire value in $key. For example: 
if ($key eq "~") {
   # it's a tilde
}
elsif ($key eq "\e[5~") {
   # pgup
}
elsif ($key eq "\e[6~") {
   # pgdown
}

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In reply to Re: using \x in regex by ysth
in thread using \x in regex by halfcountplus

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