ptolemy/ptolemy-reader-slackdown

ptolemy-slackdown-reader

This module implements a ptolemy reader for the limited Markdown-like language understood by Slack and other chat services. This understands only a few basic inline markup constructs:

• *asterisks* for bold text
• _underscores_ for emphasized text
• ~tildes~ for ~strikethrough text~
• backticks for inline code

It also understands two block-level constructs, but these can be turned off using the SlackdownOpts value passed to the parser:

• A set of lines started with > become a blockquote
• A set of lines with triple backticks above and below become verbatim code blocks

Among other things, this is a good idea for situations where the full generality of Markdown is probably unnecessary. You don't want your blog comments or chat messages to include H2 headers or horizontal rules, but some bold and italic text would be fine!

Right now this is largely untested, and it badly needs QuickCheck or fuzzing, because it should absolutely be the case that every possible string parses as something, even if that something just doesn't include markup. This is certainly not the case right now.