Merged in development from the main REXML repository.

* Fixed bug #34, typo in xpath_parser.
* Previous fix, (include? -> includes?) was incorrect.
* Added another test for encoding
* Started AnyName support in RelaxNG
* Added Element#Attributes#to_a, so that it does something intelligent.
  This was needed by XPath, for '@*'
* Fixed XPath so that @* works.
* Added xmlgrep to the bin/ directory.  A little tool allowing you to grep
  for XPaths in an XML document.
* Fixed a CDATA pretty-printing bug. (#39)
* Fixed a buffering bug in Source.rb that affected the SAX parser
  This bug was related to how REXML determines the encoding of a file, and
  evinced itself by hanging on input when using the SAX parser.
* The unit test for the previous patch.  Forgot to commit it.
* Minor pretty printing fix.
* Applied Curt Sampson's optimization improvements
* Issue #9; 3.1.3: The SAX parser was not denormalizing entity references
  in incoming text.  All declared internal entities, as well as numeric
  entities, should now be denormalized.  There was a related bug in that the
  SAX parser was actually double-encoding entities; this is also fixed.
* bin/* programs should now be executable.  Setting bin apps to executable
* Issue 14; 3.1.3: DTD events are now all being passed by StreamParser
  Some of the DTD events were not being passed through by the stream parser.
* #26: Element#add_element(nil) now raises an error Changed XPath searches so
  that if a non-Hash is passed, an error is raised Fixed a spurrious undefined
  method error in encoding.  #29: XPath ordering bug fixed by Mark Williams.
  Incidentally, Mark supplied a superlative bug report, including a full unit
  test.  Then he went ahead and fixed the bug.  It doesn't get any better than
  this, folks.
* Fixed a broken link.  Thanks to Dick Davies for pointing it out.  Added
  functions courtesy of Michael Neumann <mneumann@xxxx.de>.
  Example code to follow.
* Added Michael's sample code.  Merged the changes in from branches/xpath_V
* Fixed preceding:: and following:: axis Fixed the ordering bug that Martin
  Fowler reported.
* Uncommented some code commented for testing Applied Nobu's changes to the
  Encoding infrastructure, which should fix potential threading issues.
* Added more tests, and the missing syncenumerator class.  Fixed the
  inheritance bug in the pull parser that James Britt found.  Indentation
  changes, and changed some exceptions to runtime
  exceptions.
* Changes by Matz, mostly of indent -> indent_level, to avoid
  function/variable naming conflicts
* Tabs -> spaces (whitespace)

Note the addition of syncenumerator.rb.  This is a stopgap, until I can work on
the class enough to get it accepted as a replacement for the SyncEnumerator
that comes with the Generator class.  My version is orders of magnitude faster
than the Generator SyncEnumerator, but is currently missing a couple of
features of the original.  Eventually, I expect this class to migrate to
another part of the source tree.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@8483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rexml/parsers/xpathparser.rb

@@ -20,7 +20,7 @@ module REXML
         path.gsub!(/([\(\[])\s+/, '\1') # Strip ignorable spaces
         path.gsub!( /\s+([\]\)])/, '\1' )
         parsed = []
-        path = LocationPath(path, parsed)
+        path = OrExpr(path, parsed)
         parsed
       end
 
@@ -302,7 +302,7 @@ module REXML
             path = path[1..-1]
           end
           parsed << :processing_instruction
-          parsed << literal
+          parsed << (literal || '')
         when NCNAMETEST
           #puts "NCNAMETEST"
           prefix = $1
@@ -589,9 +589,10 @@ module REXML
         when /^(\w[-\w]*)(?:\()/
           #puts "PrimaryExpr :: Function >>> #$1 -- '#$''"
           fname = $1
-          path = $'
+          tmp = $'
           #puts "#{fname} =~ #{NT.inspect}"
-          #return nil if fname =~ NT
+          return path if fname =~ NT
+          path = tmp
           parsed << :function
           parsed << fname
           path = FunctionCall(path, parsed)