Class: RDoc::Markup::Attributes
Relationships & Source Files | |
Inherits: | Object |
Defined in: | lib/rdoc/markup/attributes.rb |
Overview
We manage a set of attributes. Each attribute has a symbol name and a bit value.
Class Method Summary
-
.new ⇒ Attributes
constructor
Creates a new attributes set.
Instance Attribute Summary
-
#regexp_handling
readonly
The regexp handling attribute type.
Instance Method Summary
-
#as_string(bitmap)
Returns a string representation of
bitmap
-
#bitmap_for(name)
Returns a unique bit for
name
-
#each_name_of(bitmap)
yields each attribute name in
bitmap
Constructor Details
.new ⇒ Attributes
Creates a new attributes set.
# File 'lib/rdoc/markup/attributes.rb', line 16
def initialize @regexp_handling = 1 @name_to_bitmap = [ [:_REGEXP_HANDLING_, @regexp_handling], ] @next_bitmap = @regexp_handling << 1 end
Instance Attribute Details
#regexp_handling (readonly)
The regexp handling attribute type. See RDoc::Markup#add_regexp_handling
# File 'lib/rdoc/markup/attributes.rb', line 11
attr_reader :regexp_handling
Instance Method Details
#as_string(bitmap)
Returns a string representation of bitmap
# File 'lib/rdoc/markup/attributes.rb', line 46
def 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
#bitmap_for(name)
Returns a unique bit for name
# File 'lib/rdoc/markup/attributes.rb', line 29
def bitmap_for name bitmap = @name_to_bitmap.assoc name unless bitmap then bitmap = @next_bitmap @next_bitmap <<= 1 @name_to_bitmap << [name, bitmap] else bitmap = bitmap.last end bitmap end
#each_name_of(bitmap)
yields each attribute name in bitmap
# File 'lib/rdoc/markup/attributes.rb', line 60
def each_name_of bitmap return enum_for __method__, bitmap unless block_given? @name_to_bitmap.each do |name, bit| next if bit == @regexp_handling yield name.to_s if (bitmap & bit) != 0 end end