Command-line mode

[adamquaile]

This was developed originally in HTTP-mode for for enveloper, but it could be useful as a command-line app too.

Idea of usage:

# Sales invoice. Order no {{ order.number }}

| Item | Price | Qty | Total |
| ---- | ----- | --- | ----- | 
{% for item in order.items %}
    | {{ item.title }} | {{ item.price }} | {{ item.qty }} | {{ item.total }} |
{% endfor %}

cat invoice.pdf.md.twig \
    | pipeprint \
        --input @invoide.pdf.md.twig \
        --engine=twig \
        --parameters='{"order": {"number": "14", "items": [{"title": "widget", "price": "£5.00", "qty": 4, "total": "£20.00"]}' \
    | pipeprint --engine=markdown \
    | pipeprint --engine=wkhtmltopdf```