cc09ed7cd1
It only runs when markdown has underscored usernames. Skip escaping underscore when content is in code or codeblock. It works by going through all lines of a markdown content. Find underscored username. Escape if we are not in the codeblock. The (?<!) is negative lookbehind which rules out the case when a underscored username is present in code, e.g., `@_dev_` will not be escaped.
37 lines
786 B
Ruby
37 lines
786 B
Ruby
# To go through a markdown document. Mainly used to decide if we are in
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# code blocks to decide if we should escape underscored usernames.
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class MarkdownTraverser
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def initialize(markdown)
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@lines = markdown.dup.lines
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init_position
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end
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def each
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lines.each do |line|
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update_position(line.include?(CODEBLOCK_MARKER))
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yield(line)
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end
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end
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def in_codeblock?
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prev == true && current == false
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end
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private
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CODEBLOCK_MARKER = "```".freeze
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private_constant :CODEBLOCK_MARKER
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attr_reader :lines
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attr_accessor :prev, :current
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def init_position
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self.prev = false
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self.current = lines.first.include?(CODEBLOCK_MARKER)
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end
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def update_position(current)
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self.current = current
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self.prev = current ? !prev : prev
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end
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end
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