module TTFunk::Table::Post::Format20

Version 2.0 is used for fonts that use glyph names that are not in the set of Macintosh glyph names. A given font may map some of its glyphs to the standard Macintosh glyph names, and some to its own custom names. A version 2.0 ‘post` table can be used in fonts with TrueType or CFF version 2 outlines.

Public Instance Methods

glyph_for(code) click to toggle source

Get glyph name for character code.

@param code [Integer] @return [String]

# File lib/ttfunk/table/post/format20.rb, line 21
def glyph_for(code)
  index = @glyph_name_index[code]
  return '.notdef' unless index

  if index <= 257
    POSTSCRIPT_GLYPHS[index]
  else
    @names[index - 258] || '.notdef'
  end
end

Private Instance Methods

parse_format!() click to toggle source
# File lib/ttfunk/table/post/format20.rb, line 34
def parse_format!
  number_of_glyphs = read(2, 'n').first
  @glyph_name_index = read(number_of_glyphs * 2, 'n*')
  @names = []

  strings = StringIO.new(io.read(offset + length - io.pos))
  until strings.eof?
    length = strings.read(1).unpack1('C')
    @names << strings.read(length)
  end
end