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annotate tools/mdx_urlize.py @ 557:7247a406f92b

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Merging change to requirements.txt made on production server.
author Brian Neal <bgneal@gmail.com>
date Sun, 29 Jan 2012 14:45:09 -0600
parents f54bf3b3bece
children 2adf01661ac5
rev   line source
bgneal@356 1 """
bgneal@356 2 Taken from: https://github.com/r0wb0t/markdown-urlize
bgneal@356 3
bgneal@356 4 A more liberal autolinker
bgneal@356 5
bgneal@356 6 Inspired by Django's urlize function.
bgneal@356 7
bgneal@356 8 Positive examples:
bgneal@356 9
bgneal@356 10 >>> import markdown
bgneal@356 11 >>> md = markdown.Markdown(extensions=['urlize'])
bgneal@356 12
bgneal@356 13 >>> md.convert('http://example.com/')
bgneal@356 14 u'<p><a href="http://example.com/">http://example.com/</a></p>'
bgneal@356 15
bgneal@356 16 >>> md.convert('go to http://example.com')
bgneal@356 17 u'<p>go to <a href="http://example.com">http://example.com</a></p>'
bgneal@356 18
bgneal@356 19 >>> md.convert('example.com')
bgneal@356 20 u'<p><a href="http://example.com">example.com</a></p>'
bgneal@356 21
bgneal@356 22 >>> md.convert('example.net')
bgneal@356 23 u'<p><a href="http://example.net">example.net</a></p>'
bgneal@356 24
bgneal@356 25 >>> md.convert('www.example.us')
bgneal@356 26 u'<p><a href="http://www.example.us">www.example.us</a></p>'
bgneal@356 27
bgneal@356 28 >>> md.convert('(www.example.us/path/?name=val)')
bgneal@356 29 u'<p>(<a href="http://www.example.us/path/?name=val">www.example.us/path/?name=val</a>)</p>'
bgneal@356 30
bgneal@356 31 >>> md.convert('go to <http://example.com> now!')
bgneal@356 32 u'<p>go to <a href="http://example.com">http://example.com</a> now!</p>'
bgneal@356 33
bgneal@356 34 Negative examples:
bgneal@356 35
bgneal@356 36 >>> md.convert('del.icio.us')
bgneal@356 37 u'<p>del.icio.us</p>'
bgneal@356 38
bgneal@356 39 """
bgneal@356 40
bgneal@356 41 import markdown
bgneal@356 42
bgneal@356 43 # Global Vars
bgneal@356 44 URLIZE_RE = '(%s)' % '|'.join([
bgneal@356 45 r'<(?:f|ht)tps?://[^>]*>',
bgneal@356 46 r'\b(?:f|ht)tps?://[^)<>\s]+[^.,)<>\s]',
bgneal@356 47 r'\bwww\.[^)<>\s]+[^.,)<>\s]',
bgneal@356 48 r'[^(<\s]+\.(?:com|net|org)\b',
bgneal@356 49 ])
bgneal@356 50
bgneal@356 51 class UrlizePattern(markdown.inlinepatterns.Pattern):
bgneal@356 52 """ Return a link Element given an autolink (`http://example/com`). """
bgneal@356 53 def handleMatch(self, m):
bgneal@356 54 url = m.group(2)
bgneal@356 55
bgneal@356 56 if url.startswith('<'):
bgneal@356 57 url = url[1:-1]
bgneal@356 58
bgneal@356 59 text = url
bgneal@356 60
bgneal@356 61 if not url.split('://')[0] in ('http','https','ftp'):
bgneal@356 62 if '@' in url and not '/' in url:
bgneal@356 63 url = 'mailto:' + url
bgneal@356 64 else:
bgneal@356 65 url = 'http://' + url
bgneal@356 66
bgneal@356 67 el = markdown.etree.Element("a")
bgneal@356 68 el.set('href', url)
bgneal@356 69 el.text = markdown.AtomicString(text)
bgneal@356 70 return el
bgneal@356 71
bgneal@356 72 class UrlizeExtension(markdown.Extension):
bgneal@356 73 """ Urlize Extension for Python-Markdown. """
bgneal@356 74
bgneal@356 75 def extendMarkdown(self, md, md_globals):
bgneal@356 76 """ Replace autolink with UrlizePattern """
bgneal@356 77 md.inlinePatterns['autolink'] = UrlizePattern(URLIZE_RE, md)
bgneal@356 78
bgneal@356 79 def makeExtension(configs=None):
bgneal@356 80 return UrlizeExtension(configs=configs)
bgneal@356 81
bgneal@356 82 if __name__ == "__main__":
bgneal@356 83 import doctest
bgneal@356 84 doctest.testmod()