#!/bin/sed -Ef

## markdown to html module for pinopress
## based off https://github.com/stamby/md-to-html
# input $1 - filepath to html file

# remove document meta
/^-- \w+: .+$/d

# html style comments
/<!--(.*)-->/d

# special html characters
s/\&/\&amp\;/g
s/</\&lt\;/g
s/>/\&gt\;/g

# horizontal rule
s/^\s*-{3,}\s*$/<hr\/>/

# inline styles
s/(^|[^\\\*])\*{3}([^\*]+)\*{3}([^\*]|$)/\1<strong><em>\2<\/em><\/strong>\3/g
s/(^|[^\\_])_{3}([^_]+)_{3}([^_]|$)/\1<strong><em>\2<\/em><\/strong>\3/g
s/(^|[^\\\*])\*{2}([^\*]+)\*{2}([^\*]|$)/\1<strong>\2<\/strong>\3/g
s/(^|[^\\_])_{2}([^\_]+)_{2}([^_]|$)/\1<strong>\2<\/strong>\3/g
s/(^|[^\\\*])\*([^\*]+)\*([^\*]|$)/\1<em>\2<\/em>\3/g
s/(^|[^\\_])_([^_]+)_([^_]|$)/\1<em>\2<\/em>\3/g
s/(^|[^\\`])`([^`]+)`([^`]|$)/\1<code>\2<\/code>\3/g
s/(^|[^\\~])~{2}([^~]+)~{2}([^~]|$)/\1<del>\2<\/del>\3/g

# images
s/!\[(.*)\]\((.*)\)/<img src="\2" alt="\1"\/>/g

# links
s/\[(.*)\]\((.*)\)/<a href="\1">\2<\/a>/g
s/\[(.*)\]/<a href="\1">\1<\/a>/g

# headers
s/^#{6} (.*)/<h6>\1<\/h6>/
s/^#{5} (.*)/<h5>\1<\/h5>/
s/^#{4} (.*)/<h4>\1<\/h4>/
s/^#{3} (.*)/<h3>\1<\/h3>/
s/^#{2} (.*)/<h2>\1<\/h2>/
s/^#} (.*)/<h1>\1<\/h1>/

# code block

# paragraphs

# /./{H;$!d} ; x ; s/^/\n<p>/ ; s/$/\n<\/p>/