md4c

C Markdown parser. Fast. SAX-like interface. Compliant to CommonMark specification.
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permissive-url-autolinks.txt (2216B)

      1 
      2 # Permissive URL Autolinks
      3 
      4 With the flag `MD_FLAG_PERMISSIVEURLAUTOLINKS`, MD4C enables more permissive recognition
      5 of URLs and transform them to autolinks, even if they do not exactly follow the syntax
      6 of autolink as specified in CommonMark specification.
      7 
      8 This is standard CommonMark autolink:
      9 
     10 ```````````````````````````````` example
     11 Homepage: <https://github.com/mity/md4c>
     12 .
     13 <p>Homepage: <a href="https://github.com/mity/md4c">https://github.com/mity/md4c</a></p>
     14 ````````````````````````````````
     15 
     16 With the permissive autolinks enabled, this is sufficient:
     17 
     18 ```````````````````````````````` example
     19 Homepage: https://github.com/mity/md4c
     20 .
     21 <p>Homepage: <a href="https://github.com/mity/md4c">https://github.com/mity/md4c</a></p>
     22 ````````````````````````````````
     23 
     24 But this permissive autolink feature can work only for very widely used URL
     25 schemes, in alphabetical order `ftp:`, `http:`, `https:`.
     26 
     27 That's why this is not a permissive autolink:
     28 
     29 ```````````````````````````````` example
     30 ssh://root@example.com
     31 .
     32 <p>ssh://root@example.com</p>
     33 ````````````````````````````````
     34 
     35 The same rules for path validation as for permissivve WWW autolinks apply.
     36 Therefore the final question mark here is not part of the autolink:
     37 
     38 ```````````````````````````````` example
     39 Have you ever visited http://www.zombo.com?
     40 .
     41 <p>Have you ever visited <a href="http://www.zombo.com">http://www.zombo.com</a>?</p>
     42 ````````````````````````````````
     43 
     44 But in contrast, in this example it is:
     45 
     46 ```````````````````````````````` example
     47 http://www.bing.com/search?q=md4c
     48 .
     49 <p><a href="http://www.bing.com/search?q=md4c">http://www.bing.com/search?q=md4c</a></p>
     50 ````````````````````````````````
     51 
     52 And finally one complex example:
     53 
     54 ```````````````````````````````` example
     55 http://commonmark.org
     56 
     57 (Visit https://encrypted.google.com/search?q=Markup+(business))
     58 
     59 Anonymous FTP is available at ftp://foo.bar.baz.
     60 .
     61 <p><a href="http://commonmark.org">http://commonmark.org</a></p>
     62 <p>(Visit <a href="https://encrypted.google.com/search?q=Markup+(business)">https://encrypted.google.com/search?q=Markup+(business)</a>)</p>
     63 <p>Anonymous FTP is available at <a href="ftp://foo.bar.baz">ftp://foo.bar.baz</a>.</p>
     64 ````````````````````````````````