Algorithm for finding and replacing URLs with hyperlinks

Morten W. Petersen morten at nidelven-it.no
Wed Feb 19 22:04:34 CET 2003


Morten W. Petersen wrote:
> Peter Hansen wrote:
> 
>> "Morten W. Petersen" wrote:
>>
>>> Does anyone have a snippet of code that'll replace for example
>>> http://www.python.org with <a href="http://www.python.org"
>>> >http://www.python.org</a>?
>>
>>
>>
>> How perfect do you want it?  Various packages include regular
>> expression patterns which match URLs, although some are better
>> than others.  The one in an older version of ZWiki which I checked, 
>> for example, looks like this:
>>
>>  urlchars         = r'[A-Za-z0-9/:@_%~#=&\.\-\?]+'
>>  url              = r'["=]?((http|ftp|mailto|file):%s)' % (urlchars)
>>
>> ...but unfortunately that means it will be confused if you try
>> to put the URL at the end of a sentence like this http://www.python.org.
> 
> 
> OK, I managed to make a function for replacing URLs with hyperlinks,
> see attached code.  Thanks!  :)

Ajajaj, attached an old module.  Here's the correct one that works.

-Morten
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