### vim:ft=zsh:foldmethod=marker
## url encoding for lookup queries, etc.

LOOKUP_guard || return 1
emulate -L zsh
setopt extendedglob
local input output ws=$'\t '
local -A opts

lu_parseopts_args=( s bool q bool )
LOOKUP_parseopts "$@" || return 1
if [[ ${opts[-q]} == 'yes' ]] ; then
    # -q: QUERY is declared 'local -x QUERY' in backends.
    #     That means, it gets handed down to us. Apply our filters to it.
    unencQUERY="${QUERY}"
    set -- "${QUERY}"
else
    set -- "${args[@]}"
fi

input=( ${(s::)1} )
output=${(j::)input/(#b)([^A-Za-z0-9_${ws}.!~*\'\(\)+-])/%${(l:2::0:)$(([##16]#match))}}

if [[ ${opts[-s]} == 'yes' ]] ; then
    output=${${output##[$ws]#}%%[$ws]#}
    output="${output//+/%2B}"
    output=${output//[$ws]##/+}
else
    output="${output//[$ws]/%20}"
fi

if [[ ${opts[-q]} == 'yes' ]] ; then
    QUERY=${output}
else
    printf '%s' ${output}
fi