NOTE: It's a backward incompatible change. If we have any serious
problems with this change, we may revert this change.

The XML namespace specification says the default namespace doesn't
apply to attribute names but it does in REXML without this change:

https://www.w3.org/TR/xml-names/#uniqAttrs

> the default namespace does not apply to attribute names

REXML reports a parse error for the following XML that is described as
a valid XML in the XML nsmaspace specification without this change:

    <!-- http://www.w3.org is bound to n1 and is the default -->
    <x xmlns:n1="http://www.w3.org"
       xmlns="http://www.w3.org" >
      <good a="1"     b="2" />
      <good a="1"     n1:a="2" />
    </x>

If attribute doesn't have prefix, the attribute should return "" for
both #prefix and #namespace.

https://github.com/ruby/rexml/commit/9e4fd552bc

https://github.com/ruby/rexml/commit/2384586811

[#15206] [Fix GH-1976]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65505 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

The position should be counted for each nodeset but the previous
implementation counts position for union-ed nodeset.

For example, "/a/*/*[1]" should be matched to "<c1/>" and "<c2/>" with
the following XML.

    <a>
      <b>
        <c1/>
      </b>
      <b>
        <c2/>
      </b>
    </a>

But the previous implementation just returns only "<c1/>".

* lib/rexml/element.rb (REXML::Attributes#each_attribute):
  Support Enumerator for no block use.

* lib/rexml/element.rb (REXML::Attributes#each):
  Support Enumerator for no block use.

* lib/rexml/functions.rb (REXML::Functions.string):
  Support NaN again.

* lib/rexml/xpath_parser.rb: Re-implement "Step" evaluator.
  It should evaluate "AxisSpecifier", "NodeTest" and "Predicate" in one
  step to respect position for each nodeset.

* test/rexml/test_jaxen.rb: Enable more tests. Remained tests should
  be also enabled but it'll not be near future.

* test/rexml/xpath/test_base.rb: Fix expected value.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

If uplevel keyword is given, the warning message is prepended
with caller file and line information and the string "warning: ".
The use of the uplevel keyword makes Kernel#warn format output
similar to how rb_warn formats output.

This patch modifies net/ftp and net/imap to use Kernel#warn
instead of $stderr.puts or $stderr.printf, since they are used
for printing warnings.

This makes lib/cgi/core and tempfile use $stderr.puts instead of
warn for debug logging, since they are used for debug printing
and not for warning.

This does not modify bundler, rubygems, or rdoc, as those are
maintained outside of ruby and probably wish to remain backwards
compatible with older ruby versions.

rb_warn_m code is originally from nobu, but I've changed it
so that it only includes the path and lineno from uplevel
(not the method), and also prepends the string "warning: ",
to make it more similar to rb_warn.

From: Jeremy Evans code@jeremyevans.net
Signed-off-by: Urabe Shyouhei shyouhei@ruby-lang.org


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When you change this to true, you may need to add more tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53141 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* lib/erb.rb: ditto.
* lib/mkmf.rb: ditto.
* lib/net/http/response.rb: ditto.
* lib/optparse/version.rb: ditto.
* lib/prime.rb: ditto.
* lib/racc/parser.rb: ditto.
* lib/rexml/document.rb: ditto.
* lib/rexml/dtd/dtd.rb: ditto.
* lib/rexml/element.rb: ditto.
* lib/rexml/functions.rb: ditto.
* lib/rexml/parsers/xpathparser.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46973 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

*  lib/net/http.rb: ditto
*  lib/rexml/attribute.rb: ditto
*  lib/rexml/element.rb: ditto
*  lib/rexml/source.rb: ditto
*  lib/rexml/streamlistener.rb: ditto
*  lib/rss/xmlparser.rb: ditto
*  lib/rubygems/commands/generate_index_command.rb: ditto
*  lib/shell.rb: ditto
*  lib/uri/common.rb:ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44650 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  namespaced attributes. [ruby-dev:47277] [Bug #8301]
  Patch by Ippei Obayashi. Thanks!!!
* test/rexml/test_attributes.rb
  (AttributesTester#test_to_a_with_namespaces): Add a test of the
  above change.


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