39 lines
1,022 B
Ruby
39 lines
1,022 B
Ruby
class Markdowner
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def self.to_html(text, allow_images = false)
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if text.blank?
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return ""
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else
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html = RDiscount.new(text.to_s, *[ :smart, :autolink, :safelink,
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:filter_styles, :filter_html ] + (allow_images ? [] : [ :no_image ])).
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to_html
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# change <h1> headings to just emphasis tags
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html.gsub!(/<(\/)?h(\d)>/) {|_| "<#{$1}strong>" }
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# fix links that got the trailing punctuation appended to move it outside
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# the link
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html.gsub!(/<a ([^>]+)([\.\!\,])">([^>]+)([\.\!\,])<\/a>/) {|_|
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if $2.to_s == $4.to_s
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"<a #{$1}\">#{$3}</a>#{$2}"
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else
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_
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end
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}
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# make links have rel=nofollow
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html.gsub!(/<a href/, "<a rel=\"nofollow\" href")
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# make @username link to that user's profile
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html.gsub!(/\B\@([\w\-]+)/) do |u|
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if User.find_by_username(u[1 .. -1])
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"<a href=\"/u/#{u[1 .. -1]}\">#{u}</a>"
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else
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u
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end
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end
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html
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end
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end
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end
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