kc3-lang/md4c/test/permissive-www-autolinks.txt

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• Hash : 4585088a
  Author :
  Date : 2020-11-13T10:16:34
  

  md_analyze_permissive_url_autolink: Better GFM compatibility.
  
  The autolinks now allow unmatched parenthesis, only the trailing
  parenthesis closers are handled specially to deal with the situation the
  autolink is all inside an outer parenthesis.
  
  Somehow our tests were broken and avoided the cases with unmatched
  parenthesis pairs inside the auto-link. That's now fixed and in sync
  with GFM specs too.
  
  Fixes #135.
  

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• test/permissive-www-autolinks.txt

• 
  # Permissive WWW Autolinks
  
  With the flag `MD_FLAG_PERMISSIVEWWWAUTOLINKS`, MD4C enables recognition of
  autolinks starting with `www.`, even if they do not exactly follow the syntax
  of autolink as specified in CommonMark specification.
  
  These do not have to be enclosed in `<` and `>`, and they even do not need
  any preceding scheme specification.
  
  The WWW autolink will be recognized when the text `www.` is found followed by a
  valid domain. A valid domain consists of segments of alphanumeric characters,
  underscores (`_`) and hyphens (`-`) separated by periods (`.`). There must be
  at least one period, and no underscores may be present in the last two segments
  of the domain.
  
  The scheme `http` will be inserted automatically:
  
  ```````````````````````````````` example
  www.commonmark.org
  .
  <p><a href="http://www.commonmark.org">www.commonmark.org</a></p>
  ````````````````````````````````
  
  After a valid domain, zero or more non-space non-`<` characters may follow:
  
  ```````````````````````````````` example
  Visit www.commonmark.org/help for more information.
  .
  <p>Visit <a href="http://www.commonmark.org/help">www.commonmark.org/help</a> for more information.</p>
  ````````````````````````````````
  
  We then apply extended autolink path validation as follows:
  
  Trailing punctuation (specifically, `?`, `!`, `.`, `,`, `:`, `*`, `_`, and `~`)
  will not be considered part of the autolink, though they may be included in the
  interior of the link:
  
  ```````````````````````````````` example
  Visit www.commonmark.org.
  
  Visit www.commonmark.org/a.b.
  .
  <p>Visit <a href="http://www.commonmark.org">www.commonmark.org</a>.</p>
  <p>Visit <a href="http://www.commonmark.org/a.b">www.commonmark.org/a.b</a>.</p>
  ````````````````````````````````
  
  When an autolink ends in `)`, we scan the entire autolink for the total number
  of parentheses.  If there is a greater number of closing parentheses than
  opening ones, we don't consider the last character part of the autolink, in
  order to facilitate including an autolink inside a parenthesis:
  
  ```````````````````````````````` example
  www.google.com/search?q=Markup+(business)
  
  (www.google.com/search?q=Markup+(business))
  .
  <p><a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a></p>
  <p>(<a href="http://www.google.com/search?q=Markup+(business)">www.google.com/search?q=Markup+(business)</a>)</p>
  ````````````````````````````````
  
  This check is only done when the link ends in a closing parentheses `)`, so if
  the only parentheses are in the interior of the autolink, no special rules are
  applied:
  
  ```````````````````````````````` example
  www.google.com/search?q=(business))+ok
  .
  <p><a href="http://www.google.com/search?q=(business))+ok">www.google.com/search?q=(business))+ok</a></p>
  ````````````````````````````````
  
  If an autolink ends in a semicolon (`;`), we check to see if it appears to
  resemble an [entity reference][entity references]; if the preceding text is `&`
  followed by one or more alphanumeric characters.  If so, it is excluded from
  the autolink:
  
  ```````````````````````````````` example
  www.google.com/search?q=commonmark&hl=en
  
  www.google.com/search?q=commonmark&hl;
  .
  <p><a href="http://www.google.com/search?q=commonmark&amp;hl=en">www.google.com/search?q=commonmark&amp;hl=en</a></p>
  <p><a href="http://www.google.com/search?q=commonmark">www.google.com/search?q=commonmark</a>&amp;hl;</p>
  ````````````````````````````````
  
  `<` immediately ends an autolink.
  
  ```````````````````````````````` example
  www.commonmark.org/he<lp
  .
  <p><a href="http://www.commonmark.org/he">www.commonmark.org/he</a>&lt;lp</p>
  ````````````````````````````````
  
  
  ## GitHub Issues
  
  ### [Issue 53](https://github.com/mity/md4c/issues/53)
  ```````````````````````````````` example
  This is [link](www.github.com/).
  .
  <p>This is <a href="www.github.com/">link</a>.</p>
  ````````````````````````````````
  ```````````````````````````````` example
  This is [link](www.github.com/)X
  .
  <p>This is <a href="www.github.com/">link</a>X</p>
  ````````````````````````````````
  

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