Dictionary lookup (full featured)

define() {
    local ret
    local lines=0
    local match
    local url="dict://dict.org"
    if [ $# -eq 0 ]; then
        echo "Usage: 'define word'"
        echo "Use specific database: 'define word db'"
        echo "Get listing of possible databases: 'define showdb'"
        echo "Word match: 'define word-part match-type' (suf, pre, sub, re)"
        echo "Suffix, prefix, substring, regular expression respectively"
        echo "If you use regular expression matching: 'define ^s.*r re'"
    fi
    if [ $# -eq 1 ]; then
        if [ $1 == "showdb" ]; then
            ret="`curl -# ${url}/show:db|tail -n +3|head -n -2|sed 's/^110.//'`"
        else
            #Lookup word
            ret="`curl -# ${url}/d:$1|tail -n +3|head -n -2|sed 's/^15[0-2].//'`"
        fi
    fi
    if [ $# -eq 2 ]; then
        case "$2" in
        "suf")
            #Match by suffix
            match="suffix"
            ret="`curl -# ${url}/m:$1::${match}|tail -n +3|head -n -2|sed 's/^15[0-2].//'`"
        ;;
        "pre")
            #Match by prefix
            match="prefix";
            ret="`curl -# ${url}/m:$1::${match}|tail -n +3|head -n -2|sed 's/^15[0-2].//'`"
        ;;
        "sub")
            #Match by substring
            match="substring";
            ret="`curl -# ${url}/m:$1::${match}|tail -n +3|head -n -2|sed 's/^15[0-2].//'`"
        ;;
        "re")
            #Regular expression match
            match="re";
            ret="`curl -# ${url}/m:$1::${match}|tail -n +3|head -n -2|sed 's/^15[0-2].//'`"
        ;;
        *)
            #Use specific databse for lookup
            ret="`curl -# ${url}/d:$1:$2|tail -n +3|head -n -2|sed 's/^15[0-2].//'`"
        ;;
        esac
    fi

    lines=`echo "${ret}"|grep -c -`

    #Output
    if [ ${lines} -gt 4 ]; then
        #Use less if more than 4 definitions
        echo "${ret}"|less -R
    else
        echo "${ret}"
    fi
}

thesaurus() {
    define $1 moby-thes
}