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https://github.com/pi-hole/pi-hole
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Use perl instead of grep?
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@ -66,11 +66,11 @@ HandleOther(){
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domain=$(sed -e "y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/" <<< "$1")
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#check validity of domain
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validDomain=$(echo "${domain}" | grep -P '^(?!.*[^a-z0-9-\.].*)\b((?=[a-z0-9-]{1,63}\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,63}\b')
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validDomain=$(echo "${domain}" | perl -lne 'print $1 if /^(?!.*[^a-z0-9-\.].*)\b((?=[a-z0-9-]{1,63}\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,63}\b/')
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if [ -z "${validDomain}" ]; then
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echo "::: $1 is not a valid argument or domain name"
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else
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domList=("${domList[@]}" ${validDomain})
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domList=("${domList[@]}" ${domain})
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fi
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}
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