[ruby-cvs:70326] kou:r63236 (trunk): rexml: Fix XPath bug of /#{ELEMENT_NAME}

[kou at ruby-lang.org]

kou	2018-04-22 17:09:04 +0900 (Sun, 22 Apr 2018)

  New Revision: 63236

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63236

  Log:
    rexml: Fix XPath bug of /#{ELEMENT_NAME}
    
    It doesn't mean that all elements which name "ELEMENT_NAME" with any
    namespace URI including null namespace URI. It means that all elements
    which name "ELEMENT_NAME" with null namespace URI.
    
    https://www.w3.org/TR/1999/REC-xpath-19991116/#NT-NodeTest
    
    > if the QName does not have a prefix, then the namespace URI is null
    > (this is the same way attribute names are expanded).
    
    We need to use "*[local-name()='#{ELEMENT_NAME}']" for all elements
    which name "ELEMENT_NAME" with any namespace URI including null
    namespace URI in XPath 1.0. But it's inconvenient. So this change
    includes "*:#{LOCAL_NAME}" syntax support that is introduced since
    XPath 2.0.
    
    * lib/rexml/parsers/xpathparser.rb: Support "*:#{LOCAL_NAME}" syntax that
      is introduced since XPath 2.0.
    
    * lib/rexml/xpath_parser.rb:
      * Fix namespace URI processing for "#{ELEMENT_NAME}". Now,
        "#{ELEMENT_NAME}" doesn't accept elements with null namespace URI.
      * Add "*:#{LOCAL_NAME}" support.
    
    * test/rexml/test_contrib.rb,
      test/rexml/test_core.rb,
      test/rexml/xpath/test_base.rb: Follow this change.
    
    * test/rexml/test_jaxen.rb: Fix namespace processing.

  Modified files:
    trunk/lib/rexml/parsers/xpathparser.rb
    trunk/lib/rexml/xpath_parser.rb
    trunk/test/rexml/test_contrib.rb
    trunk/test/rexml/test_core.rb
    trunk/test/rexml/test_jaxen.rb
    trunk/test/rexml/xpath/test_base.rb