149 lines
4.3 KiB
Ruby
149 lines
4.3 KiB
Ruby
|
#!/usr/bin/ruby
|
||
|
#
|
||
|
#Copyright 2022 Yessiest (yessiest@memeware.net)
|
||
|
#
|
||
|
#Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
#you may not use this file except in compliance with the License.
|
||
|
#You may obtain a copy of the License at
|
||
|
#
|
||
|
#http://www.apache.org/licenses/LICENSE-2.0
|
||
|
#
|
||
|
#Unless required by applicable law or agreed to in writing, software
|
||
|
#distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
#See the License for the specific language governing permissions and
|
||
|
#limitations under the License.
|
||
|
|
||
|
# Ruby CGI module to produce human-readable HTML from markdown pages
|
||
|
# Variables
|
||
|
ROOT_PATH="/var/www/"
|
||
|
TAB_MULTIPLIER=10
|
||
|
TAB_UNIT="px"
|
||
|
QUOTE_TAB=4
|
||
|
TEMPLATE_PRE="template.pre.html"
|
||
|
TEMPLATE_POST="template.post.html"
|
||
|
TEMPLATE_CSS="template.css"
|
||
|
# Script
|
||
|
require 'cgi'
|
||
|
|
||
|
cgi = CGI.new("html5")
|
||
|
|
||
|
def ident(ident)
|
||
|
return "<span style=\"margin-left: #{(ident*TAB_MULTIPLIER).to_s+TAB_UNIT}\">"
|
||
|
end
|
||
|
|
||
|
def _parse_list(text,mode=["ul",/ *-/])
|
||
|
new_text = ""
|
||
|
list_started = false
|
||
|
text.each_line do |line|
|
||
|
starts = line.start_with?(mode[1])
|
||
|
l_ident = line.match(/ */)[0].length
|
||
|
if (not list_started) and (starts) then
|
||
|
list_started = true
|
||
|
new_text=new_text+"<#{mode[0]}>\n<li>#{ident l_ident}\n"+line.gsub(mode[1],"")+"</span></li>\n"
|
||
|
elsif (list_started) and (not starts) then
|
||
|
list_started = false
|
||
|
new_text=new_text+"</#{mode[0]}>\n"+line
|
||
|
elsif (list_started) and (starts) then
|
||
|
new_text = new_text+"<li>#{ident l_ident}\n"+line.gsub(mode[1],"")+"</span></li>\n"
|
||
|
else
|
||
|
new_text = new_text+line
|
||
|
end
|
||
|
end
|
||
|
return new_text
|
||
|
end
|
||
|
|
||
|
template_css = ""
|
||
|
template_pre = ""
|
||
|
template_post = ""
|
||
|
if File::exists?( ROOT_PATH+TEMPLATE_CSS ) then
|
||
|
template_css = cgi.link( rel = "stylesheet", href = TEMPLATE_CSS)
|
||
|
end
|
||
|
if File::exists?( ROOT_PATH+TEMPLATE_PRE) then
|
||
|
template_pre_f = File.new( ROOT_PATH+TEMPLATE_PRE, "r")
|
||
|
template_pre = template_pre_f.read
|
||
|
template_pre_f.close
|
||
|
end
|
||
|
if File::exists?( ROOT_PATH+TEMPLATE_POST) then
|
||
|
template_post_f = File.new( ROOT_PATH+TEMPLATE_POST, "r")
|
||
|
template_post = template_post_f.read
|
||
|
template_post_f.close
|
||
|
end
|
||
|
|
||
|
doc = "---
|
||
|
# Error 404: Document not available
|
||
|
|
||
|
Document you requested is not available
|
||
|
---"
|
||
|
# Absolutely containing the script to the ROOT_PATH and making it only read .md
|
||
|
if cgi["docfile"].end_with?(".md") and
|
||
|
(File.absolute_path(ROOT_PATH+cgi["docfile"]).start_with?(ROOT_PATH)) and
|
||
|
File::exists?( ROOT_PATH+cgi["docfile"] ) then
|
||
|
docfile = File.new(ROOT_PATH+cgi["docfile"],"r")
|
||
|
doc = docfile.read
|
||
|
docfile.close
|
||
|
end
|
||
|
|
||
|
content = cgi.body {
|
||
|
doc = "\n"+CGI.escapeHTML(doc)
|
||
|
|
||
|
# Extra
|
||
|
# - Horizontal rule
|
||
|
doc = doc.gsub(/-{3,}/,"<hr />")
|
||
|
# - Paragraph separators
|
||
|
doc = doc.gsub(/(?<=\n\n)(.*?)(?=\n\n)/m,"<p>\n\\1\n</p>")
|
||
|
|
||
|
# Parse lists
|
||
|
# - Unordered lists
|
||
|
doc = _parse_list(doc)
|
||
|
# - Ordered lists
|
||
|
doc = _parse_list(doc,mode = ["ol",/ *\d*\./])
|
||
|
|
||
|
# Bounded markup
|
||
|
# - Bold/Italics
|
||
|
doc = doc.gsub(/(?<!\\)\*{3}(.*?)(?<!\\)\*{3}/m,"<i><b>\\1</b></i>")
|
||
|
doc = doc.gsub(/(?<!\\)\*{2}(.*?)(?<!\\)\*{2}/m,"<b>\\1</b>")
|
||
|
doc = doc.gsub(/(?<!\\)\*{1}(.*?)(?<!\\)\*{1}/m,"<i>\\1</i>")
|
||
|
# - Underline
|
||
|
doc = doc.gsub(/(?<!\\)_(.*?)_(?<!\\)/m,"<span style=\"text-decoration:underline;\">\\1</span>")
|
||
|
# - Strikethrough
|
||
|
doc = doc.gsub(/(?<!\\)~(.*?)~(?<!\\)/m,"<strike>\\1</strike>")
|
||
|
|
||
|
# Unbounded (line) markup
|
||
|
# - Headers
|
||
|
doc = doc.gsub(/(?<=\n)\#{4} ?(.*)/,"<h4>\\1</h4>")
|
||
|
doc = doc.gsub(/(?<=\n)\#{3} ?(.*)/,"<h3>\\1</h3>")
|
||
|
doc = doc.gsub(/(?<=\n)\#{2} ?(.*)/,"<h2>\\1</h2>")
|
||
|
doc = doc.gsub(/(?<=\n)\# ?(.*)/,"<h1>\\1</h1>")
|
||
|
|
||
|
# - Quote
|
||
|
doc = doc.gsub(/(?<=\n)>(.*)/,"#{ident QUOTE_TAB}<span class=\"quote\">\\1</span></span>")
|
||
|
|
||
|
# Links
|
||
|
# - Images
|
||
|
doc = doc.gsub(/!\[(.*?)\]\((.*?)\)/,"<img src=\"\\2\" alt=\"\\1\" />")
|
||
|
# - Hyperlinks
|
||
|
doc = doc.gsub(/\[(.*?)\]\((.*?)\)/,"<a href=\"\\2\">\\1</a>")
|
||
|
|
||
|
# Code blocks
|
||
|
# - Full block
|
||
|
doc = doc.gsub(/(?<!\\)`{3}(.*?)(?<!\\)`{3}/m,"<pre><code class=\"codeblock\">\n\\1</pre></code>")
|
||
|
# - Inline block
|
||
|
doc = doc.gsub(/(?<!\\)`{2}(.*?)(?<!\\)`{2}/m,"<code class=\"codeinline\">\\1</code>")
|
||
|
|
||
|
template_pre+"\n"+
|
||
|
doc+"\n"+
|
||
|
template_post+"\n"
|
||
|
}
|
||
|
|
||
|
cgi.out {
|
||
|
cgi.html {
|
||
|
cgi.head { "\n"+
|
||
|
cgi.title { cgi["docfile"].gsub(/.md$/,"") }+"\n"+
|
||
|
template_css
|
||
|
} +
|
||
|
content
|
||
|
}
|
||
|
}
|
||
|
|