initial commit

1 files changed, 67 insertions, 0 deletions

diff --git a/_scripts/generate_page.lua b/_scripts/generate_page.lua
new file mode 100644
index 0000000..d6d60c3
--- /dev/null
+++ b/_scripts/generate_page.lua
@@ -0,0 +1,67 @@
+#!/usr/bin/lua
+
+markdown = require('discount')
+yaml = require('yaml')
+
+function read_markdown(file)
+	local f = assert(io.open(file))
+	local data = f:read("*a")
+	f:close()
+	local yml, md = data:match("^(%-%-%-.-%-%-%-)(.*)$")
+	local t
+	local pagename = file:gsub(".md$","")
+	if yml and md then
+		t = yaml.load(yml)
+		t.pagename = pagename
+		return t, markdown(md)
+	else
+		return {title=pagename, pagename=pagename}, markdown(data)
+	end
+end
+
+function read_layout(file)
+	-- try look for template for 'path/file.md' in this order:
+	--   path/file.template.html
+	--   layout.template.html
+	for _,t in pairs{file:gsub(".md$", ".template.html"),
+		"layout.template.html"} do
+		local f = io.open(t)
+		if f then
+			local data = f:read("*a")
+			f:close()
+			return data
+		end
+	end
+end
+
+function generate_navbar(active)
+	local f = assert(io.open("_navbar.yaml"))
+	local nav = yaml.load(f:read("*a"))
+	f:close()
+	local data = ""
+	for align, menu in pairs(nav) do
+		data = ('%s<span class="%s">'):format(data, align)
+		for _,t in pairs(menu) do
+			for label, ref in pairs(t) do
+				data = ('%s<a href="%s">%s</a>'):format(data,
+					ref, label)
+			end
+		end
+		data = data ..'</span>\n'
+	end
+	return data
+end
+
+function replace_tags(content, meta)
+	return content:gsub("{{(.-)}}", function(tag)
+			return meta[tag]
+		end)
+end
+
+page, content = read_markdown(assert(arg[1]))
+layout = read_layout(arg[1])
+page.navbar = generate_navbar()
+
+page.content = replace_tags(content, page)
+
+io.write((replace_tags(layout, page)))