Froze rails gems

[depot.git] / vendor / rails / actionpack / lib / action_controller / vendor / html-scanner / html / document.rb

diff --git a/vendor/rails/actionpack/lib/action_controller/vendor/html-scanner/html/document.rb b/vendor/rails/actionpack/lib/action_controller/vendor/html-scanner/html/document.rb
new file mode 100644 (file)
index 0000000..b8d73c3
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+++ b/vendor/rails/actionpack/lib/action_controller/vendor/html-scanner/html/document.rb
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+require 'html/tokenizer'
+require 'html/node'
+require 'html/selector'
+require 'html/sanitizer'
+
+module HTML #:nodoc:
+  # A top-level HTMl document. You give it a body of text, and it will parse that
+  # text into a tree of nodes.
+  class Document #:nodoc:
+
+    # The root of the parsed document.
+    attr_reader :root
+
+    # Create a new Document from the given text.
+    def initialize(text, strict=false, xml=false)
+      tokenizer = Tokenizer.new(text)
+      @root = Node.new(nil)
+      node_stack = [ @root ]
+      while token = tokenizer.next
+        node = Node.parse(node_stack.last, tokenizer.line, tokenizer.position, token, strict)
+
+        node_stack.last.children << node unless node.tag? && node.closing == :close
+        if node.tag?
+          if node_stack.length > 1 && node.closing == :close
+            if node_stack.last.name == node.name
+              if node_stack.last.children.empty?
+                node_stack.last.children << Text.new(node_stack.last, node.line, node.position, "")
+              end
+              node_stack.pop
+            else
+              open_start = node_stack.last.position - 20
+              open_start = 0 if open_start < 0
+              close_start = node.position - 20
+              close_start = 0 if close_start < 0
+              msg = <<EOF.strip
+ignoring attempt to close #{node_stack.last.name} with #{node.name}
+  opened at byte #{node_stack.last.position}, line #{node_stack.last.line}
+  closed at byte #{node.position}, line #{node.line}
+  attributes at open: #{node_stack.last.attributes.inspect}
+  text around open: #{text[open_start,40].inspect}
+  text around close: #{text[close_start,40].inspect}
+EOF
+              strict ? raise(msg) : warn(msg)
+            end
+          elsif !node.childless?(xml) && node.closing != :close
+            node_stack.push node
+          end
+        end
+      end
+    end
+  
+    # Search the tree for (and return) the first node that matches the given
+    # conditions. The conditions are interpreted differently for different node
+    # types, see HTML::Text#find and HTML::Tag#find.
+    def find(conditions)
+      @root.find(conditions)
+    end
+
+    # Search the tree for (and return) all nodes that match the given
+    # conditions. The conditions are interpreted differently for different node
+    # types, see HTML::Text#find and HTML::Tag#find.
+    def find_all(conditions)
+      @root.find_all(conditions)
+    end
+    
+  end
+
+end