2018-07-23 09:32:32 +00:00
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# frozen_string_literal: true
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2016-04-27 21:38:33 +00:00
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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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2018-07-06 10:35:30 +00:00
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#{::Gitlab::Regex.markdown_code_or_html_blocks}
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2016-04-27 21:38:33 +00:00
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2022-02-04 00:13:53 +00:00
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(?=^>>>\ *\n.*\n>>>\ *$)(?:
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2016-07-10 19:47:53 +00:00
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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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2018-06-18 11:28:21 +00:00
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^>>>\ *\n
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2016-07-10 19:47:53 +00:00
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(?<quote>
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2016-04-27 21:38:33 +00:00
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(?:
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2016-07-10 19:47:53 +00:00
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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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2018-06-18 11:28:21 +00:00
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^<[^>]+?>\ *\n
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2016-07-10 19:47:53 +00:00
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)
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.
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2016-04-27 21:38:33 +00:00
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2016-07-10 19:47:53 +00:00
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# A code block
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2016-04-27 21:38:33 +00:00
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\g<code>
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2016-07-10 19:47:53 +00:00
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# An HTML block
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2016-04-27 21:38:33 +00:00
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\g<html>
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2016-07-10 19:47:53 +00:00
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)+?
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)
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2018-06-18 11:28:21 +00:00
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\n>>>\ *$
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2016-04-27 21:38:33 +00:00
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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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2016-07-10 19:47:53 +00:00
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@text = @text.delete("\r")
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2016-04-27 21:38:33 +00:00
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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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2019-04-03 13:42:23 +00:00
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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(/^> $/, ">") + "\n"
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2016-04-27 21:38:33 +00:00
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else
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$~[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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