1 files changed, 144 insertions, 0 deletions
diff --git a/ruby_1_9_3/lib/rdoc/markup/inline.rb b/ruby_1_9_3/lib/rdoc/markup/inline.rb
new file mode 100644
index 0000000000..cf598d1583
--- /dev/null
+++ b/ruby_1_9_3/lib/rdoc/markup/inline.rb
@@ -0,0 +1,144 @@
+require 'rdoc'
+class RDoc::Markup
+
+  ##
+  # We manage a set of attributes. Each attribute has a symbol name and a bit
+  # value.
+
+  class Attribute
+
+    ##
+    # Special attribute type.  See RDoc::Markup#add_special
+
+    SPECIAL = 1
+
+    @@name_to_bitmap = { :_SPECIAL_ => SPECIAL }
+    @@next_bitmap = 2
+
+    ##
+    # Returns a unique bit for +name+
+
+    def self.bitmap_for(name)
+      bitmap = @@name_to_bitmap[name]
+      unless bitmap then
+        bitmap = @@next_bitmap
+        @@next_bitmap <<= 1
+        @@name_to_bitmap[name] = bitmap
+      end
+      bitmap
+    end
+
+    ##
+    # Returns a string representation of +bitmap+
+
+    def self.as_string(bitmap)
+      return "none" if bitmap.zero?
+      res = []
+      @@name_to_bitmap.each do |name, bit|
+        res << name if (bitmap & bit) != 0
+      end
+      res.join(",")
+    end
+
+    ##
+    # yields each attribute name in +bitmap+
+
+    def self.each_name_of(bitmap)
+      @@name_to_bitmap.each do |name, bit|
+        next if bit == SPECIAL
+        yield name.to_s if (bitmap & bit) != 0
+      end
+    end
+
+  end
+
+  AttrChanger = Struct.new :turn_on, :turn_off # :nodoc:
+
+  ##
+  # An AttrChanger records a change in attributes. It contains a bitmap of the
+  # attributes to turn on, and a bitmap of those to turn off.
+
+  class AttrChanger
+    def to_s # :nodoc:
+      "Attr: +#{Attribute.as_string turn_on}/-#{Attribute.as_string turn_off}"
+    end
+
+    def inspect # :nodoc:
+      "+%s/-%s" % [
+        Attribute.as_string(turn_on),
+        Attribute.as_string(turn_off),
+      ]
+    end
+  end
+
+  ##
+  # An array of attributes which parallels the characters in a string.
+
+  class AttrSpan
+
+    ##
+    # Creates a new AttrSpan for +length+ characters
+
+    def initialize(length)
+      @attrs = Array.new(length, 0)
+    end
+
+    ##
+    # Toggles +bits+ from +start+ to +length+
+    def set_attrs(start, length, bits)
+      for i in start ... (start+length)
+        @attrs[i] |= bits
+      end
+    end
+
+    ##
+    # Accesses flags for character +n+
+
+    def [](n)
+      @attrs[n]
+    end
+
+  end
+
+  ##
+  # Hold details of a special sequence
+
+  class Special
+
+    ##
+    # Special type
+
+    attr_reader   :type
+
+    ##
+    # Special text
+
+    attr_accessor :text
+
+    ##
+    # Creates a new special sequence of +type+ with +text+
+
+    def initialize(type, text)
+      @type, @text = type, text
+    end
+
+    ##
+    # Specials are equal when the have the same text and type
+
+    def ==(o)
+      self.text == o.text && self.type == o.type
+    end
+
+    def inspect # :nodoc:
+      "#<RDoc::Markup::Special:0x%x @type=%p, name=%p @text=%p>" % [
+        object_id, @type, RDoc::Markup::Attribute.as_string(type), text.dump]
+    end
+
+    def to_s # :nodoc:
+      "Special: type=#{type}, name=#{RDoc::Markup::Attribute.as_string type}, text=#{text.dump}"
+    end
+
+  end
+
+end
+