\n \n \n \n \n\n
\n \n \n \n
require<\/span> 'digest/md5'<\/span><\/div> <\/div>def<\/span> gfm<\/span>(<\/span>text<\/span>)<\/span><\/div>  # Extract pre blocks<\/span><\/div>  extractions<\/span> =<\/span> {}<\/span><\/div>  text<\/span>.<\/span>gsub!<\/span>(<\/span>%r{<pre>.*?</pre>}m<\/span>)<\/span> do<\/span> |<\/span>match<\/span>|<\/span><\/div>    md5<\/span> =<\/span> Digest<\/span>::<\/span>MD5<\/span>.<\/span>hexdigest<\/span>(<\/span>match<\/span>)<\/span><\/div>    extractions<\/span>[<\/span>md5<\/span>]<\/span> =<\/span> match<\/span><\/div>    "{gfm-extraction-<\/span>#{<\/span>md5<\/span>}<\/span>}"<\/span><\/div>  end<\/span><\/div> <\/div>  # prevent foo_bar_baz from ending up with an italic word in the middle<\/span><\/div>  text<\/span>.<\/span>gsub!<\/span>(<\/span>/(^(?! {4}|\\t)\\w+_\\w+_\\w[\\w_]*)/<\/span>)<\/span> do<\/span> |<\/span>x<\/span>|<\/span><\/div>    x<\/span>.<\/span>gsub<\/span>(<\/span>'_'<\/span>,<\/span> '\\_'<\/span>)<\/span> if<\/span> x<\/span>.<\/span>split<\/span>(<\/span>''<\/span>)<\/span>.<\/span>sort<\/span>.<\/span>to_s<\/span>[<\/span>0<\/span>.<\/span>.<\/span>1<\/span>]<\/span> ==<\/span> '__'<\/span><\/div>  end<\/span><\/div> <\/div>  # in very clear cases, let newlines become <br /> tags<\/span><\/div>  text<\/span>.<\/span>gsub!<\/span>(<\/span>/^[\\w\\<][^\\n]*\\n+/<\/span>)<\/span> do<\/span> |<\/span>x<\/span>|<\/span><\/div>    x<\/span> =~<\/span> /\\n{2}/<\/span> ?<\/span> x<\/span> :<\/span> (<\/span>x<\/span>.<\/span>strip!<\/span>;<\/span> x<\/span> <<<\/span> "  <\/span>\\n<\/span>"<\/span>)<\/span><\/div>  end<\/span><\/div> <\/div>  # Insert pre block extractions<\/span><\/div>  text<\/span>.<\/span>gsub!<\/span>(<\/span>/\\{gfm-extraction-([0-9a-f]{32})\\}/<\/span>)<\/span> do<\/span><\/div>    "<\/span>\\n\\n<\/span>"<\/span> +<\/span> extractions<\/span>[<\/span>$1<\/span>]<\/span><\/div>  end<\/span><\/div> <\/div>  text<\/span><\/div>end<\/span><\/div> <\/div>if<\/span> $0<\/span> ==<\/span> __FILE__<\/span><\/div>  require<\/span> 'test/unit'<\/span><\/div>  require<\/span> 'shoulda'<\/span><\/div> <\/div>  class<\/span> GFMTest<\/span> <<\/span> Test<\/span>::<\/span>Unit<\/span>::<\/span>TestCase<\/span><\/div>    context<\/span> "GFM"<\/span> do<\/span><\/div>      should<\/span> "not touch single underscores inside words"<\/span> do<\/span><\/div>        assert_equal<\/span> "foo_bar"<\/span>,<\/span> gfm<\/span>(<\/span>"foo_bar"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "not touch underscores in code blocks"<\/span> do<\/span><\/div>        assert_equal<\/span> "    foo_bar_baz"<\/span>,<\/span> gfm<\/span>(<\/span>"    foo_bar_baz"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "not touch underscores in pre blocks"<\/span> do<\/span><\/div>        assert_equal<\/span> "<\/span>\\n\\n<\/span><pre><\/span>\\n<\/span>foo_bar_baz<\/span>\\n<\/span></pre>"<\/span>,<\/span> gfm<\/span>(<\/span>"<pre><\/span>\\n<\/span>foo_bar_baz<\/span>\\n<\/span></pre>"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "not treat pre blocks with pre-text differently"<\/span> do<\/span><\/div>        a<\/span> =<\/span> "<\/span>\\n\\n<\/span><pre><\/span>\\n<\/span>this is `a<\/span>\\\\<\/span>_test` and this<\/span>\\\\<\/span>_too<\/span>\\n<\/span></pre>"<\/span><\/div>        b<\/span> =<\/span> "hmm<pre><\/span>\\n<\/span>this is `a<\/span>\\\\<\/span>_test` and this<\/span>\\\\<\/span>_too<\/span>\\n<\/span></pre>"<\/span><\/div>        assert_equal<\/span> gfm<\/span>(<\/span>a<\/span>)<\/span>[<\/span>2<\/span>.<\/span>.<\/span>-<\/span>1<\/span>]<\/span>,<\/span> gfm<\/span>(<\/span>b<\/span>)<\/span>[<\/span>3<\/span>.<\/span>.<\/span>-<\/span>1<\/span>]<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "escape two or more underscores inside words"<\/span> do<\/span><\/div>        assert_equal<\/span> "foo<\/span>\\\\<\/span>_bar<\/span>\\\\<\/span>_baz"<\/span>,<\/span> gfm<\/span>(<\/span>"foo_bar_baz"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "turn newlines into br tags in simple cases"<\/span> do<\/span><\/div>        assert_equal<\/span> "foo  <\/span>\\n<\/span>bar"<\/span>,<\/span> gfm<\/span>(<\/span>"foo<\/span>\\n<\/span>bar"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "convert newlines in all groups"<\/span> do<\/span><\/div>        assert_equal<\/span> "apple  <\/span>\\n<\/span>pear  <\/span>\\n<\/span>orange<\/span>\\n\\n<\/span>ruby  <\/span>\\n<\/span>python  <\/span>\\n<\/span>erlang"<\/span>,<\/span><\/div>                     gfm<\/span>(<\/span>"apple<\/span>\\n<\/span>pear<\/span>\\n<\/span>orange<\/span>\\n\\n<\/span>ruby<\/span>\\n<\/span>python<\/span>\\n<\/span>erlang"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "convert newlines in even long groups"<\/span> do<\/span><\/div>        assert_equal<\/span> "apple  <\/span>\\n<\/span>pear  <\/span>\\n<\/span>orange  <\/span>\\n<\/span>banana<\/span>\\n\\n<\/span>ruby  <\/span>\\n<\/span>python  <\/span>\\n<\/span>erlang"<\/span>,<\/span><\/div>                     gfm<\/span>(<\/span>"apple<\/span>\\n<\/span>pear<\/span>\\n<\/span>orange<\/span>\\n<\/span>banana<\/span>\\n\\n<\/span>ruby<\/span>\\n<\/span>python<\/span>\\n<\/span>erlang"<\/span>)<\/span><\/div>      end<\/span><\/div> <\/div>      should<\/span> "not convert newlines in lists"<\/span> do<\/span><\/div>        assert_equal<\/span> "# foo<\/span>\\n<\/span># bar"<\/span>,<\/span> gfm<\/span>(<\/span>"# foo<\/span>\\n<\/span># bar"<\/span>)<\/span><\/div>        assert_equal<\/span> "* foo<\/span>\\n<\/span>* bar"<\/span>,<\/span> gfm<\/span>(<\/span>"* foo<\/span>\\n<\/span>* bar"<\/span>)<\/span><\/div>      end<\/span><\/div>    end<\/span><\/div>  end<\/span><\/div>end<\/span><\/div><\/pre><\/div>\n          \n        <\/div>\n\n        \n          view raw<\/a>\n          gfm.rb<\/a>\n          This Gist<\/a> brought to you by GitHub<\/a>.\n        <\/div>\n      <\/div>\n    \n  \n<\/div>\n')