1 files changed, 111 insertions, 0 deletions
diff --git a/bin/util.rb b/bin/util.rb
new file mode 100644
index 0000000..ce91007
--- /dev/null
+++ b/bin/util.rb
@@ -0,0 +1,111 @@
+# coding: utf-8
+load 'pandoc.rb'
+require 'erb'
+require 'date'
+
+$license_urls = {
+	"CC BY-SA-3.0" => 'https://creativecommons.org/licenses/by-sa/3.0/',
+	'WTFPL-2' => "http://www.wtfpl.net/txt/copying/",
+}
+$person_uris = {
+	"Luke Shumaker" => "https://lukeshu.com/",
+	"Andrew Murrell" => "https://andrewdm.me/",
+}
+$person_emails = {
+	"Luke Shumaker" => "lukeshu@parabola.nu",
+	"Andrew Murrell" => "ImFromNASA@gmail.com",
+}
+
+class Person
+	def initialize(name)
+		@name = name
+	end
+	def name
+		@name
+	end
+	def uri
+		$person_uris[@name]
+	end
+	def email
+		$person_emails[@name]
+	end
+	def html
+		if not email.nil?
+			return "<a href=\"mailto:#{email}\">#{name}</a>"
+		elsif not uri.nil?
+			return "<a href=\"#{uri}\">#{name}</a>"
+		else
+			return @name
+		end
+	end
+	def atom
+		ret = ""
+		ret += "<name>#{name}</name>" unless name.nil?
+		ret += "<uri>#{uri}</uri>" unless uri.nil?
+		ret += "<email>#{email}</email>" unless email.nil?
+	end
+end
+
+class License
+	def initialize(name)
+		@name = name
+	end
+	def name
+		@name
+	end
+	def url
+		$license_urls[@name]
+	end
+	def html
+		"<a href=\"#{url}\">#{name}</a>"
+	end
+end
+
+class Page
+	def initialize(infile)
+		@infile = infile
+	end
+
+	def infile ; @infile                      ; end
+	def input  ; @input ||= File.read(infile) ; end
+	def pandoc
+		if @pandoc.nil?
+			types = {
+				'md' => 'markdown'
+			}
+
+			ext = File.extname(infile).gsub(/^[.]/, '')
+			type = types[ext] || ext
+			@pandoc = Pandoc::load(type, input)
+
+			if @pandoc['pandoc_format']
+				@pandoc = Pandoc::load(@pandoc['pandoc_format'], input)
+			end
+		end
+		@pandoc
+	end
+
+	def title   ; @title   ||=             pandoc['title']   || input.split("\n",2).first ; end
+	def author  ; @author  ||= Person.new( pandoc['author']  || "Andrew Murrell")         ; end
+	def license ; @license ||= License.new(pandoc['license'] || "CC BY-SA-3.0")           ; end
+	def date    ; @date    ||= Date.parse(pandoc['date']) unless pandoc['date'].nil?      ; end
+	def slug    ; @slug    ||= infile.sub(/\..*$/,'').sub(/^.*\//,'')                     ; end
+	def content ; @content ||= pandoc.to('html5 '+(pandoc['pandoc_flags']||''))           ; end
+	def head    ; @head    ||= pandoc['html_head_extra']                                  ; end
+
+	def rights
+		@rights ||= "<p>The content of this page is Copyright © #{date.year unless date.nil?} #{author.html}.</p>\n" +
+					"<p>This page is licensed under the #{license.html} license.</p>"
+	end
+
+	def breadcrumbs
+		@breadcrumbs ||= '<a href="/">Andrew Murrell</a> » ' + ( (slug == 'index') ? "blog" : "<a href=/blog>blog</a> » #{slug}" )
+	end
+end
+
+def html_escape(html)
+	html
+		.gsub('&', '&amp;')
+		.gsub('>', '&gt;')
+		.gsub('<', '&lt;')
+end