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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 35148] - URI.parseUriReference treats strings with leading ':' as absolute URIs with zero-length scheme
Date Wed, 01 Jun 2005 06:28:59 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=35148





------- Additional Comments From rolweber@de.ibm.com  2005-06-01 08:28 -------
The colon is a reserved character, which means it may or may not have
to be escaped, depending on where it occurs. RFC 2396 includes the
following statements:

[section 2.2, page 7]
   ... If the data for a URI component would conflict with the
   reserved purpose, then the conflicting data must be escaped before
   forming the URI.

[bottom of page 16, top of page 17]
   Authors should be aware that a path segment which contains a colon
   character cannot be used as the first segment of a relative URI path
   (e.g., "this:that"), because it would be mistaken for a scheme name.

   It is therefore necessary to precede such segments with other
   segments (e.g., "./this:that") in order for them to be referenced as
   a relative path.

An application with a user interface, such as a browser, has to deal with
non-standard input and may interpret data in the way that is most likely
to make sense. For HttpClient however, it is desirable - and essential -
that data gets interpreted as stated in the relevant specifications.

Though the WWW seems to be guided by what a particular browser does rather
than by specifications, we strive to set an example, within our domain :-)
 
cheers,
  Roland

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