[Boost-bugs] [Boost C++ Libraries] #4738: property_tree parsers fail when top node has data()

Subject: [Boost-bugs] [Boost C++ Libraries] #4738: property_tree parsers fail when top node has data()
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-14 16:43:22

#4738: property_tree parsers fail when top node has data()
-----------------------------------------------+----------------------------
 Reporter:  Jess <jess@…>                      |       Owner:  cornedbee    
     Type:  Bugs                               |      Status:  new          
Milestone:  To Be Determined                   |   Component:  property_tree
  Version:  Boost 1.43.0                       |    Severity:  Problem      
 Keywords:  property_tree, data, root, parser  |  
-----------------------------------------------+----------------------------
 {{{
 ptree tree( "DATA" );
 write_xml( "test.xml", tree );  // writes out DATA with no tag
 read_xml( "test.xml", tree );   // fails since cannot read DATA without a
 tag.
 }}}


 {{{
 ptree pt1( "DATA" );
 write_info( "test.info", tree );  // does not write DATA at all
 ptree pt2;
 read_info( "test.info", pt2 );    // reads in empty ptree
 BOOST_CHECK( pt1 == pt2 );        // fails since the node has no data
 }}}


 --------------------
 These could be easy fixes but some convention will have to be adopted.
 The info parser could be modified to write out the top level data when
 indent==-1 but the reader would then have to interpret an initial string
 with no following data or children to as data().  Alternatively there
 could be a null key represented by "" or some special character.

 The XML is trickier because the DATA either needs to be an attribute or
 needs some sort of tag, or it cannot be parsed as XML.

 I only checked this on the 1.43.0 that I have installed but it does not
 appear that the problem has been fixed in 1.44.0 or in subversion.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4738>
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