From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/lib/rexml/light/node.rb | 195 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 195 insertions(+)
 create mode 100644 jni/ruby/lib/rexml/light/node.rb

(limited to 'jni/ruby/lib/rexml/light')

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
-- 
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