honeylisp/vendor/lite-plugins/plugins/ghmarkdown.lua

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local core = require "core"
local command = require "core.command"
local keymap = require "core.keymap"
local html = [[
<html>
<style>
body {
margin:80 auto 100 auto;
max-width: 750px;
line-height: 1.6;
font-family: Open Sans, Arial;
color: #444;
padding: 0 10px;
}
h1, h2, h3 { line-height: 1.2; padding-top: 14px; }
hr { border: 0px; border-top: 1px solid #ddd; }
code, pre { background: #f3f3f3; padding: 8px; }
code { padding: 4px; }
a { text-decoration: none; color: #0366d6; }
a:hover { text-decoration: underline; }
table { border-collapse: collapse; }
table, th, td { border: 1px solid #ddd; padding: 6px; }
</style>
<head>
<title>${title}</title>
<head>
<body>
<script>
var xhr = new XMLHttpRequest;
xhr.open("POST", "https://api.github.com/markdown/raw");
xhr.setRequestHeader("Content-Type", "text/plain");
xhr.onload = function() { document.body.innerHTML = xhr.responseText; };
xhr.send("${content}");
</script>
</body>
</html>
]]
command.add("core.docview", {
["ghmarkdown:show-preview"] = function()
local dv = core.active_view
local content = dv.doc:get_text(1, 1, math.huge, math.huge)
local esc = { ['"'] = '\\"', ["\n"] = '\\n' }
local text = html:gsub("${(.-)}", {
title = dv:get_name(),
content = content:gsub(".", esc)
})
local htmlfile = core.temp_filename(".html")
local fp = io.open(htmlfile, "w")
fp:write(text)
fp:close()
core.log("Opening markdown preview for \"%s\"", dv:get_name())
if PLATFORM == "Windows" then
system.exec("start " .. htmlfile)
else
system.exec(string.format("xdg-open %q", htmlfile))
end
core.add_thread(function()
coroutine.yield(5)
os.remove(htmlfile)
end)
end
})
keymap.add { ["ctrl+shift+m"] = "ghmarkdown:show-preview" }