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luoxi avatar shengbo-medley avatar treby avatar yamadagenki avatar

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isucon2016's Issues

character_length使っているので、それをcolumnに落としてみる

isuda/web.rb

      def htmlify(content)
        keywords = db.xquery(%| select * from entry order by character_length(keyword) desc |)
        pattern = keywords.map {|k| Regexp.escape(k[:keyword]) }.join('|')
        kw2hash = {}
        hashed_content = content.gsub(/(#{pattern})/) {|m|
          matched_keyword = $1
          "isuda_#{Digest::SHA1.hexdigest(matched_keyword)}".tap do |hash|
            kw2hash[matched_keyword] = hash
          end
        }
        escaped_content = Rack::Utils.escape_html(hashed_content)
        kw2hash.each do |(keyword, hash)|
          keyword_url = url("/keyword/#{Rack::Utils.escape_path(keyword)}")
          anchor = '<a href="%s">%s</a>' % [keyword_url, Rack::Utils.escape_html(keyword)]
          escaped_content.gsub!(hash, anchor)
        end
        escaped_content.gsub(/\n/, "<br />\n")
      end

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