miti.sh/renderers/markdown.moon

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Path = require "sitegen.path"
needs_shell_escape = (str) -> not not str\match "[^%w_-]"
shell_escape = (str) -> str\gsub "'", "''"
_prepare_command = (cmd, ...) ->
args = for x in *{...}
if needs_shell_escape x then "'#{shell_escape x}'" else x
args = table.concat args, " "
"#{cmd} #{args}"
-- config command like this in site.moon:
-- require("renderers.markdown").cmd = "pandoc --mathjax >"
class PandocRenderer extends require "sitegen.renderers.markdown"
unescape_cosmo = @unescape_cosmo
escape_cosmo = @escape_cosmo
pandoc: (md_source) =>
fname = os.tmpname!
with io.popen _prepare_command(@@cmd, fname), "w"
\write md_source
\close!
p = io.open fname
out = p\read"*a"
if mat = out\match('<div class="highlight"><pre>(.-)\n?</pre></div>')
rep = '<div class="sourceCode"><pre class="sourceCode ' .. 'moonscript"><code class="sourceCode ' .. 'moonscript">' .. mat .. '</code></pre></div>'
out = out\gsub('<div class="highlight"><pre>(.-)\n?</pre></div>', rep)
out
-- get rid of the div and pre inserted by pygments
-- assert out\match('^<div class="highlight"><pre>(.-)\n?</pre></div>'),
-- "Failed to parse pygmentize result, is pygments installed?"
cmd: "pandoc >"
render: (page, md_source) =>
md_source = page\pipe "renderer.markdown.pre_render", md_source
md_source, escapes = escape_cosmo md_source
html_source = assert @pandoc md_source
html_source = unescape_cosmo html_source, escapes
super page, html_source