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#!/usr/bin/env sh
# AUTHOR: gotbletu (@gmail|twitter|youtube|github|lbry)
# https://www.youtube.com/user/gotbletu
# DESC: remove all duckduckgo redirect links
# DEMO: https://youtu.be/rM5vBRfwwzc
# REFF: grep string between two words https://stackoverflow.com/a/13245961
# REQD: 1. $EDITOR ~/.w3m/siteconf
# url m@^https?://duckduckgo.com/l/\?uddg@
# substitute_url "file:///cgi-bin/redirect_duckduckgo.cgi?"
# 2. chmod +x ~/.w3m/cgi-bin/redirect_duckduckgo.cgi
# 3. sed -i 's@cgi_bin.*@cgi_bin ~/.w3m/cgi-bin:/usr/lib/w3m/cgi-bin:/usr/local/libexec/w3m/cgi-bin@g' ~/.w3m/config
W3M_CURRENT_LINK="$(printf "%s" "$W3M_CURRENT_LINK" | grep -oP '(?<=duckduckgo.com\/l\/\?uddg=).*(?=&)' | sed -e "s/%\([0-9A-F][0-9A-F]\)/\\\\\x\1/g" | xargs -0 echo -e)"
printf "%s\r\n" "W3m-control: GOTO $W3M_CURRENT_LINK"
printf "%s\r\n" "W3m-control: DELETE_PREVBUF"