Module: Pdfrb::Font::Encoding

Defined in:
lib/pdfrb/font/encoding.rb,
lib/pdfrb/font/encoding/pdf_doc_encoding.rb,
lib/pdfrb/font/encoding/standard_encoding.rb,
lib/pdfrb/font/encoding/win_ansi_encoding.rb,
lib/pdfrb/font/encoding/mac_roman_encoding.rb,
lib/pdfrb/font/encoding/zapf_dingbats_encoding.rb

Defined Under Namespace

Modules: MacRomanEncoding, PDFDocEncoding, StandardEncoding, WinAnsiEncoding, ZapfDingbatsEncoding

Class Method Summary collapse

Class Method Details

.decode(encoding_name, bytes) ⇒ Object

Decode bytes (one byte per glyph) using encoding_name (a Symbol like :WinAnsiEncoding) to Unicode.



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# File 'lib/pdfrb/font/encoding.rb', line 15

def decode(encoding_name, bytes)
  table = table_for(encoding_name)
  return bytes unless table

  bytes.each_byte.with_object(+"") do |b, buf|
    buf << (table[b] ? [table[b]].pack("U") : "?")
  end.encode("UTF-8")
end

.table_for(name) ⇒ Object 



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# File 'lib/pdfrb/font/encoding.rb', line 24

def table_for(name)
  case name.to_sym
  when :WinAnsiEncoding then WinAnsiEncoding::TABLE
  when :MacRomanEncoding then MacRomanEncoding::TABLE
  when :StandardEncoding then StandardEncoding::TABLE
  when :PDFDocEncoding then PDFDocEncoding::TABLE
  when :ZapfDingbatsEncoding then ZapfDingbatsEncoding::TABLE
  end
end