summaryrefslogtreecommitdiff
path: root/jni/ruby/lib/rexml/light
diff options
context:
space:
mode:
Diffstat (limited to 'jni/ruby/lib/rexml/light')
-rw-r--r--jni/ruby/lib/rexml/light/node.rb195
1 files changed, 195 insertions, 0 deletions
diff --git a/jni/ruby/lib/rexml/light/node.rb b/jni/ruby/lib/rexml/light/node.rb
new file mode 100644
index 0000000..b33f78f
--- /dev/null
+++ b/jni/ruby/lib/rexml/light/node.rb
@@ -0,0 +1,195 @@
+require 'rexml/xmltokens'
+
+# [ :element, parent, name, attributes, children* ]
+ # a = Node.new
+ # a << "B" # => <a>B</a>
+ # a.b # => <a>B<b/></a>
+ # a.b[1] # => <a>B<b/><b/><a>
+ # a.b[1]["x"] = "y" # => <a>B<b/><b x="y"/></a>
+ # a.b[0].c # => <a>B<b><c/></b><b x="y"/></a>
+ # a.b.c << "D" # => <a>B<b><c>D</c></b><b x="y"/></a>
+module REXML
+ module Light
+ # Represents a tagged XML element. Elements are characterized by
+ # having children, attributes, and names, and can themselves be
+ # children.
+ class Node
+ NAMESPLIT = /^(?:(#{XMLTokens::NCNAME_STR}):)?(#{XMLTokens::NCNAME_STR})/u
+ PARENTS = [ :element, :document, :doctype ]
+ # Create a new element.
+ def initialize node=nil
+ @node = node
+ if node.kind_of? String
+ node = [ :text, node ]
+ elsif node.nil?
+ node = [ :document, nil, nil ]
+ elsif node[0] == :start_element
+ node[0] = :element
+ elsif node[0] == :start_doctype
+ node[0] = :doctype
+ elsif node[0] == :start_document
+ node[0] = :document
+ end
+ end
+
+ def size
+ if PARENTS.include? @node[0]
+ @node[-1].size
+ else
+ 0
+ end
+ end
+
+ def each
+ size.times { |x| yield( at(x+4) ) }
+ end
+
+ def name
+ at(2)
+ end
+
+ def name=( name_str, ns=nil )
+ pfx = ''
+ pfx = "#{prefix(ns)}:" if ns
+ _old_put(2, "#{pfx}#{name_str}")
+ end
+
+ def parent=( node )
+ _old_put(1,node)
+ end
+
+ def local_name
+ namesplit
+ @name
+ end
+
+ def local_name=( name_str )
+ _old_put( 1, "#@prefix:#{name_str}" )
+ end
+
+ def prefix( namespace=nil )
+ prefix_of( self, namespace )
+ end
+
+ def namespace( prefix=prefix() )
+ namespace_of( self, prefix )
+ end
+
+ def namespace=( namespace )
+ @prefix = prefix( namespace )
+ pfx = ''
+ pfx = "#@prefix:" if @prefix.size > 0
+ _old_put(1, "#{pfx}#@name")
+ end
+
+ def []( reference, ns=nil )
+ if reference.kind_of? String
+ pfx = ''
+ pfx = "#{prefix(ns)}:" if ns
+ at(3)["#{pfx}#{reference}"]
+ elsif reference.kind_of? Range
+ _old_get( Range.new(4+reference.begin, reference.end, reference.exclude_end?) )
+ else
+ _old_get( 4+reference )
+ end
+ end
+
+ def =~( path )
+ XPath.match( self, path )
+ end
+
+ # Doesn't handle namespaces yet
+ def []=( reference, ns, value=nil )
+ if reference.kind_of? String
+ value = ns unless value
+ at( 3 )[reference] = value
+ elsif reference.kind_of? Range
+ _old_put( Range.new(3+reference.begin, reference.end, reference.exclude_end?), ns )
+ else
+ if value
+ _old_put( 4+reference, ns, value )
+ else
+ _old_put( 4+reference, ns )
+ end
+ end
+ end
+
+ # Append a child to this element, optionally under a provided namespace.
+ # The namespace argument is ignored if the element argument is an Element
+ # object. Otherwise, the element argument is a string, the namespace (if
+ # provided) is the namespace the element is created in.
+ def << element
+ if node_type() == :text
+ at(-1) << element
+ else
+ newnode = Node.new( element )
+ newnode.parent = self
+ self.push( newnode )
+ end
+ at(-1)
+ end
+
+ def node_type
+ _old_get(0)
+ end
+
+ def text=( foo )
+ replace = at(4).kind_of?(String)? 1 : 0
+ self._old_put(4,replace, normalizefoo)
+ end
+
+ def root
+ context = self
+ context = context.at(1) while context.at(1)
+ end
+
+ def has_name?( name, namespace = '' )
+ at(3) == name and namespace() == namespace
+ end
+
+ def children
+ self
+ end
+
+ def parent
+ at(1)
+ end
+
+ def to_s
+
+ end
+
+ private
+
+ def namesplit
+ return if @name.defined?
+ at(2) =~ NAMESPLIT
+ @prefix = '' || $1
+ @name = $2
+ end
+
+ def namespace_of( node, prefix=nil )
+ if not prefix
+ name = at(2)
+ name =~ NAMESPLIT
+ prefix = $1
+ end
+ to_find = 'xmlns'
+ to_find = "xmlns:#{prefix}" if not prefix.nil?
+ ns = at(3)[ to_find ]
+ ns ? ns : namespace_of( @node[0], prefix )
+ end
+
+ def prefix_of( node, namespace=nil )
+ if not namespace
+ name = node.name
+ name =~ NAMESPLIT
+ $1
+ else
+ ns = at(3).find { |k,v| v == namespace }
+ ns ? ns : prefix_of( node.parent, namespace )
+ end
+ end
+ end
+ end
+end