56 lines
1.4 KiB
Ruby
56 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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module Banzai
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module Filter
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class BlockquoteFenceFilter < HTML::Pipeline::TextFilter
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REGEX = %r{
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#{::Gitlab::Regex.markdown_code_or_html_blocks}
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(?=(?<=^\n|\A)>>>\ *\n.*\n>>>\ *(?=\n$|\z))(?:
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# Blockquote:
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# >>>
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# Anything, including code and HTML blocks
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# >>>
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(?<=^\n|\A)>>>\ *\n
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(?<quote>
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(?:
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# Any character that doesn't introduce a code or HTML block
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(?!
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^```
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^<[^>]+?>\ *\n
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)
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.
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# A code block
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\g<code>
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# An HTML block
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\g<html>
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)+?
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)
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\n>>>\ *(?=\n$|\z)
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)
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}mx.freeze
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def initialize(text, context = nil, result = nil)
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super text, context, result
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@text = @text.delete("\r")
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end
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def call
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@text.gsub(REGEX) do
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if $~[:quote]
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# keep the same number of source lines/positions by replacing the
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# fence lines with newlines
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"\n" + $~[:quote].gsub(/^/, "> ").gsub(/^> $/, ">") + "\n"
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else
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$~[0]
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end
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end
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end
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end
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end
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end
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