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# el.sh --- insert html elements using sh

### Code:

el() { # el NAME ARGS...
    ## Create an HTML element named NAME using ARGS.
    # Any ARGS that contain an equals sign will be made into attributes of the
    # element, until the special argument '--' which will stop attribute
    # processing.  While some nesting is possible with 'el', the way bash
    # expansion works it's not great.
    #
    # No validation is done on any arguments in this function.  It could create
    # something that looks vaguely like an HTML element but isn't valid.
    _name="$1"; shift || return 1 # Require at least an element name
    _element="\\<$_name"
    _content=""
    _process_args=true

    while test -n "$1"; do
        case "$1" in
            --) if "$_process_args"; then
                    _process_args=false
                else
                    _content="$_content${_content:+ }$1"
                fi
                ;;
            *=*)
                if "$_process_args"; then
                    _element="$_element ${1%%=*}=\"${1#*=}\""
                else
                    _content="$_content${_content:+ }$1"
                fi
                ;;
            *)
                if "$_process_args"; then
                    _process_args=false
                fi
                _content="$_content${_content:+ }$1"
                ;;
        esac
        shift
    done
    _element="$_element\\>"
    printf '%s%s\\</%s\\>\n' "$_element" "$_content" "$_name"
}

### HTML5 element aliases
## These come from https://developer.mozilla.org/en-US/docs/Web/HTML/Element

# To avoid clobbering the shell's namespace, a prefix is used.  Change this
# variable when sourcing el.sh in order to change or disable the prefix.  E.g.:
# $ EL_PREFIX= . ./el.sh
# $ EL_PREFIX=HTML . ./el.sh
: "${EL_PREFIX:=_}"

for e in \
    html \
        base \
        head \
        link \
        meta \
        style \
        title \
        body \
        address \
        article \
        aside \
        footer \
        header \
        h1 \
        h2 \
        h3 \
        h4 \
        h5 \
        h6 \
        main \
        nav \
        section \
        blockquote \
        dd \
        div \
        dl \
        dt \
        figcaption \
        figure \
        hr \
        li \
        menu \
        ol \
        p \
        pre \
        ul \
        a \
        abbr \
        b \
        bdi \
        bdo \
        br \
        cite \
        code \
        data \
        dfn \
        em \
        i \
        kbd \
        mark \
        q \
        rp \
        rt \
        ruby \
        s \
        samp \
        small \
        span \
        strong \
        sub \
        sup \
        time \
        u \
        var \
        wbr \
        area \
        audio \
        img \
        map \
        track \
        video \
        embed \
        iframe \
        object \
        picture \
        portal \
        source \
        svg \
        math \
        canvas \
        noscript \
        script \
        del \
        ins \
        caption \
        col \
        colgroup \
        table \
        tbody \
        td \
        tfoot \
        th \
        thead \
        tr \
        button \
        datalist \
        fieldset \
        form \
        input \
        label \
        legend \
        meter \
        optgroup \
        option \
        output \
        progress \
        select \
        textarea \
        details \
        dialog \
        summary \
        slot \
        template \
        acronym \
        applet \
        bgsound \
        big \
        blink \
        center \
        content \
        dir \
        font \
        frame \
        frameset \
        image \
        keygen \
        marquee \
        menuitem \
        nobr \
        noembed \
        noframes \
        param \
        plaintext \
        rb \
        rtc \
        shadow \
        spacer \
        strike \
        tt \
        xmp \
    ; do
    eval "alias $EL_PREFIX$e='el $e'"
done


# el.sh ends here