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# We need to be placed in Kramdown::Converter.
# When calling a method on a Kramdown document of the form "to_****",
# Kramdown will shave off the "****" portion, Pascal-case it, and
# look for a class of that name in Kramdown::Converter.
# See https://github.com/gettalong/kramdown/blob/05d467bfb9abb732046e441ef1958471195d665d/lib/kramdown/document.rb#L113-L116
module Kramdown
module Converter
# Fixes relative markdown links to point to their dash-separated, lowercased html outputs
class MarkdownLinkAmendedHtml < Html
def convert_a(el, indent)
href = el.attr['href']
# Ensure that the link is relative to the site (doesn't start with "protocol://")
# and that it links to a markdown file.
if not /^\w+?:\/\// =~ href and href.end_with?('.md')
# Duplicate the attributes to avoid modifying the tree.
attr = el.attr.dup
# Remove the 'md', replace whitespace with dashes, switch the extension to html
dir, md_base = File.split(href)
html_base = md_base.chomp('.md').gsub(/\s+|\.|'/, '-').downcase + '.html'
attr['href'] = File.join(dir, html_base)
self.format_as_span_html(el.type, attr, self.inner(el, indent))
else
super(el, indent)
end
end
end
end
end
# One requirement for Jekyll not to freak out
# is that we need to be in the Jekyll::Converters::Markdown
# module to be a valid markdown converter.
module Jekyll
class Converters::Markdown::JekyllMarkdownLinkConverter < Converter
safe true
# Match markdown files.
def matches(ext)
ext =~ /^\.md$/i
end
# Output html files.
def output_ext(ext)
'.html'
end
def convert(content)
kramdown_config = symbolize_keys(@config['kramdown'])
doc = Kramdown::Document.new(content, kramdown_config)
html = doc.to_markdown_link_amended_html
return html;
end
end
end
def symbolize_keys(input)
result = {}
input.each do |k,v|
result[k.intern] = v
end
result
end
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