6dfcf2e856
* Fix adding quotes and dashes in codeblocks * Use find_by for all remove_from_feed methods (#558) * Destroy memberships when chat channel is destroyed
53 lines
1.8 KiB
Ruby
53 lines
1.8 KiB
Ruby
class MarkdownFixer
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class << self
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def fix_all(markdown)
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methods = %i(add_quotes_to_title modify_hr_tags convert_new_lines split_tags)
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methods.reduce(markdown) { |result, method| send(method, result) }
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end
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def fix_for_preview(markdown)
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modify_hr_tags(add_quotes_to_title(markdown))
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end
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def add_quotes_to_title(markdown)
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# Only add quotes to front matter, or text between triple dashes
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markdown.gsub(/-{3}.*?-{3}/m) do |front_matter|
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front_matter.gsub(/title:\s?(.*?)(\r\n|\n)/m) do |target|
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# $1 is the captured group (.*?)
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captured_title = $1
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# The query below checks if the whole title is wrapped in
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# either single or double quotes.
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match = captured_title.scan(/(^".*"$|^'.*'$)/)
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if match.empty?
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# Double quotes that aren't already escaped will get esacped.
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# Then the whole title get warped in double quotes.
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parsed_title = captured_title.gsub(/(?<![\\])["]/, "\\\"")
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"title: \"#{parsed_title}\"\n"
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else
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# if the title comes pre-warped in either single or doublequotes,
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# no more processing is done
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target
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end
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end
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end
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end
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# This turns --- into ------- after the first two,
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# because --- messes with front matter
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def modify_hr_tags(markdown)
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markdown.gsub(/-{3}.*?-{3}/m) do |front_matter|
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front_matter.gsub(/^---/).with_index { |m, i| i > 1 ? "#{m}-----" : m }
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end
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end
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def convert_new_lines(markdown)
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markdown.gsub("\r\n", "\n")
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end
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def split_tags(markdown)
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markdown.gsub(/\ntags:.*\n/) do |tags|
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tags.split(" #").join(",").gsub("#", "").gsub(":,", ": ")
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end
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end
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end
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end
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