* lib/*.rb: Remove unused variable warnings.

  Patch by Run Paint [ruby-core:30991]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29726 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

11 files changed, 7 insertions, 16 deletions

diff --git a/lib/rexml/attribute.rb b/lib/rexml/attribute.rb
index 28a5923608..e99927943f 100644
--- a/lib/rexml/attribute.rb
+++ b/lib/rexml/attribute.rb
@@ -115,7 +115,7 @@ module REXML
     def doctype
       if @element
         doc = @element.document
-        doctype = doc.doctype if doc
+        doc.doctype if doc
       end
     end
 
diff --git a/lib/rexml/child.rb b/lib/rexml/child.rb
index fd59d7283a..de84a312fe 100644
--- a/lib/rexml/child.rb
+++ b/lib/rexml/child.rb
@@ -88,7 +88,7 @@ module REXML
 
     # This doesn't yet handle encodings
     def bytes
-      encoding = document.encoding
+      document.encoding
 
       to_s
     end
diff --git a/lib/rexml/doctype.rb b/lib/rexml/doctype.rb
index 1a946a1587..678095ae28 100644
--- a/lib/rexml/doctype.rb
+++ b/lib/rexml/doctype.rb
@@ -115,7 +115,6 @@ module REXML
       output << " #{@long_name.inspect}" if @long_name
       output << " #{@uri.inspect}" if @uri
       unless @children.empty?
-        next_indent = indent + 1
         output << ' ['
         @children.each { |child|
           output << "\n"
diff --git a/lib/rexml/element.rb b/lib/rexml/element.rb
index f999b0b2b1..97fbd0645b 100644
--- a/lib/rexml/element.rb
+++ b/lib/rexml/element.rb
@@ -874,7 +874,6 @@ module REXML
     #  a.elements.add(Element.new('b'))  #-> <a><b/></a>
     #  a.elements.add('c')               #-> <a><b/><c/></a>
     def add element=nil
-      rv = nil
       if element.nil?
         Element.new("", self, @element.context)
       elsif not element.kind_of?(Element)
@@ -1092,7 +1091,7 @@ module REXML
         delete attr
         return
       end
-      element_document = @element.document
+
       unless value.kind_of? Attribute
         if @element.document and @element.document.doctype
           value = Text::normalize( value, @element.document.doctype )
@@ -1197,7 +1196,7 @@ module REXML
         return @element
       else # the supplied attribute is a top-level one
         attr = old
-        res = super(name)
+        super(name)
       end
       @element
     end
diff --git a/lib/rexml/formatters/transitive.rb b/lib/rexml/formatters/transitive.rb
index 3a52e03f01..6cc690d922 100644
--- a/lib/rexml/formatters/transitive.rb
+++ b/lib/rexml/formatters/transitive.rb
@@ -37,7 +37,6 @@ module REXML
           # If compact and all children are text, and if the formatted output
           # is less than the specified width, then try to print everything on
           # one line
-          skip = false
           @level += @indentation
           node.children.each { |child|
             write( child, output )
diff --git a/lib/rexml/functions.rb b/lib/rexml/functions.rb
index 2d30e5fe92..7a05d0cf9f 100644
--- a/lib/rexml/functions.rb
+++ b/lib/rexml/functions.rb
@@ -170,7 +170,6 @@ module REXML
     # Kouhei fixed this too
     def Functions::substring_after( string, test )
       ruby_string = string(string)
-      test_string = string(test)
       return $1 if ruby_string =~ /#{test}(.*)/
       ""
     end
diff --git a/lib/rexml/parsers/sax2parser.rb b/lib/rexml/parsers/sax2parser.rb
index d0f0c5155e..1e69e14e45 100644
--- a/lib/rexml/parsers/sax2parser.rb
+++ b/lib/rexml/parsers/sax2parser.rb
@@ -87,7 +87,7 @@ module REXML
         @listeners.each { |sym,match,block|
           block.start_document if sym == :start_document or sym.nil?
         }
-        root = context = []
+        context = []
         while true
           event = @parser.pull
           case event[0]
diff --git a/lib/rexml/parsers/xpathparser.rb b/lib/rexml/parsers/xpathparser.rb
index 2db37a2578..780e312671 100644
--- a/lib/rexml/parsers/xpathparser.rb
+++ b/lib/rexml/parsers/xpathparser.rb
@@ -282,7 +282,6 @@ module REXML
       PI        = /^processing-instruction\(/
       def NodeTest path, parsed
         #puts "NodeTest with #{path}"
-        res = nil
         case path
         when /^\*/
           path = $'
@@ -578,7 +577,6 @@ module REXML
       NUMBER              = /^(\d*\.?\d+)/
       NT        = /^comment|text|processing-instruction|node$/
       def PrimaryExpr path, parsed
-        arry = []
         case path
         when VARIABLE_REFERENCE
           varname = $1
diff --git a/lib/rexml/quickpath.rb b/lib/rexml/quickpath.rb
index 3ad8023470..06cb4f9115 100644
--- a/lib/rexml/quickpath.rb
+++ b/lib/rexml/quickpath.rb
@@ -33,7 +33,6 @@ module REXML
         results = filter(element.to_a, path)
       when /^[\[!\w:]/u
         # match on child
-        matches = []
         children = element.to_a
         results = filter(children, path)
       else
@@ -51,8 +50,6 @@ module REXML
       when /^\/\//u											# Descendant
         return axe( elements, "descendant-or-self", $' )
       when /^\/?\b(\w[-\w]*)\b::/u							# Axe
-        axe_name = $1
-        rest = $'
         return axe( elements, $1, $' )
       when /^\/(?=\b([:!\w][-\.\w]*:)?[-!\*\.\w]*\b([^:(]|$)|\*)/u	# Child
         rest = $'
diff --git a/lib/rexml/validation/validation.rb b/lib/rexml/validation/validation.rb
index f0ffa78912..8042e5d062 100644
--- a/lib/rexml/validation/validation.rb
+++ b/lib/rexml/validation/validation.rb
@@ -33,7 +33,7 @@ module REXML
             sattr = [:start_attribute, nil]
             eattr = [:end_attribute]
             text = [:text, nil]
-            k,v = event[2].find { |key,value|
+            k, = event[2].find { |key,value|
               sattr[1] = key
               #puts "Looking for #{sattr.inspect}"
               m = @current.next( sattr )
diff --git a/lib/rexml/xpath_parser.rb b/lib/rexml/xpath_parser.rb
index d9088a25d9..3bffd389d0 100644
--- a/lib/rexml/xpath_parser.rb
+++ b/lib/rexml/xpath_parser.rb
@@ -687,7 +687,7 @@ module REXML
           return rv
         else
           res = []
-          enum = SyncEnumerator.new( set1, set2 ).each { |i1, i2|
+          SyncEnumerator.new( set1, set2 ).each { |i1, i2|
             #puts "i1 = #{i1.inspect} (#{i1.class.name})"
             #puts "i2 = #{i2.inspect} (#{i2.class.name})"
             i1 = norm( i1 )