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https://github.com/discourse/discourse.git
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234694b50f
This adds the markdown.it engine to Discourse. https://github.com/markdown-it/markdown-it As the migration is going to take a while the new engine is default disabled. To enable it you must change the hidden site setting: enable_experimental_markdown_it. This commit is a squash of many other commits, it also includes some improvements to autospec (ability to run plugins), and a dev dependency on the og gem for html normalization.
151 lines
2.7 KiB
Ruby
151 lines
2.7 KiB
Ruby
# frozen_string_literal: true
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#
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# this class is used to normalize html output for internal comparisons in specs
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#
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require 'oga'
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class HtmlNormalize
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def self.normalize(html)
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parsed = Oga.parse_html(html.strip, strict: true)
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if parsed.children.length != 1
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puts parsed.children.count
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raise "expecting a single child"
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end
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new(parsed.children.first).format
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end
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SELF_CLOSE = Set.new(%w{area base br col command embed hr img input keygen line meta param source track wbr})
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BLOCK = Set.new(%w{
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html
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body
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aside
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p
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h1 h2 h3 h4 h5 h6
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ol ul
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address
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blockquote
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dl
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div
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fieldset
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form
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hr
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noscript
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table
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pre
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})
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def initialize(doc)
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@doc = doc
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end
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def format
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buffer = String.new
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dump_node(@doc, 0, buffer)
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buffer.strip!
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buffer
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end
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def inline?(node)
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Oga::XML::Text === node || !BLOCK.include?(node.name.downcase)
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end
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def dump_node(node, indent=0, buffer)
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if Oga::XML::Text === node
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if node.parent&.name
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buffer << node.text
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end
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return
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end
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name = node.name.downcase
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block = BLOCK.include?(name)
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buffer << " " * indent * 2 if block
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buffer << "<" << name
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attrs = node&.attributes
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if (attrs && attrs.length > 0)
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attrs.sort!{|x,y| x.name <=> y.name}
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attrs.each do |a|
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buffer << " "
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buffer << a.name
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buffer << "='"
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buffer << a.value
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buffer << "'"
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end
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end
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buffer << ">"
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if block
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buffer << "\n"
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end
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children = node.children
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children = trim(children) if block
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inline_buffer = nil
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children&.each do |child|
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if block && inline?(child)
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inline_buffer ||= String.new
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dump_node(child, indent+1, inline_buffer)
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else
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if inline_buffer
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buffer << " " * (indent+1) * 2
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buffer << inline_buffer.strip
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inline_buffer = nil
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else
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dump_node(child, indent+1, buffer)
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end
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end
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end
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if inline_buffer
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buffer << " " * (indent+1) * 2
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buffer << inline_buffer.strip
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inline_buffer = nil
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end
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if block
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buffer << "\n" unless buffer[-1] == "\n"
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buffer << " " * indent * 2
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end
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unless SELF_CLOSE.include?(name)
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buffer << "</" << name
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buffer << ">\n"
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end
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end
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def trim(nodes)
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start = 0
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finish = nodes.length
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nodes.each do |n|
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if Oga::XML::Text === n && n.text.blank?
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start += 1
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else
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break
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end
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end
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nodes.reverse_each do |n|
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if Oga::XML::Text === n && n.text.blank?
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finish -= 1
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else
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break
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end
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end
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nodes[start...finish]
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end
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end
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