Class: PDF::Reader::Encoding::ZapfDingbatsEncoding

Inherits:

PDF::Reader::Encoding

• Object
• PDF::Reader::Encoding
• PDF::Reader::Encoding::ZapfDingbatsEncoding

Defined in:

lib/pdf/reader/encoding.rb

Constant Summary

Constants inherited from PDF::Reader::Encoding

UNKNOWN_CHAR

Instance Attribute Summary

Attributes inherited from PDF::Reader::Encoding

#differences

Instance Method Summary

• #to_utf8(str, tounicode = nil) ⇒ Object

  convert a ZapfDingbatsEncoding string into UTF-8.

Methods inherited from PDF::Reader::Encoding

factory

Instance Method Details

#to_utf8(str, tounicode = nil) ⇒ Object

convert a ZapfDingbatsEncoding string into UTF-8

# File 'lib/pdf/reader/encoding.rb', line 842

def to_utf8(str, tounicode = nil)
  # mapping to unicode taken from:
  #   http://unicode.org/Public/MAPPINGS/VENDORS/ADOBE/zdingbat.txt
  array_symbol = str.unpack('C*')
  array_symbol = self.process_differences(array_symbol)
  array_enc = []
  array_symbol.each do |num|
    if tounicode && (code = tounicode.decode(num))
      array_enc << code
    elsif tounicode
      array_enc << PDF::Reader::Encoding::UNKNOWN_CHAR
    else
      case num
      when 0x21; array_enc << 0x2701
      when 0x22; array_enc << 0x2702
      when 0x23; array_enc << 0x2703
      when 0x24; array_enc << 0x2704
      when 0x25; array_enc << 0x260E
      when 0x26; array_enc << 0x2706
      when 0x27; array_enc << 0x2707
      when 0x28; array_enc << 0x2708
      when 0x29; array_enc << 0x2709
      when 0x2A; array_enc << 0x261B
      when 0x2B; array_enc << 0x261E
      when 0x2C; array_enc << 0x270C
      when 0x2D; array_enc << 0x270D
      when 0x2E; array_enc << 0x270E
      when 0x2F; array_enc << 0x270F
      when 0x30; array_enc << 0x2710
      when 0x31; array_enc << 0x2711
      when 0x32; array_enc << 0x2712
      when 0x33; array_enc << 0x2713
      when 0x34; array_enc << 0x2714
      when 0x35; array_enc << 0x2715
      when 0x36; array_enc << 0x2716
      when 0x37; array_enc << 0x2717
      when 0x38; array_enc << 0x2718
      when 0x39; array_enc << 0x2719
      when 0x3A; array_enc << 0x271A
      when 0x3B; array_enc << 0x271B
      when 0x3C; array_enc << 0x271C
      when 0x3D; array_enc << 0x271D
      when 0x3E; array_enc << 0x271E
      when 0x3F; array_enc << 0x271E
      when 0x40; array_enc << 0x2720
      when 0x41; array_enc << 0x2721
      when 0x42; array_enc << 0x2722
      when 0x43; array_enc << 0x2723
      when 0x44; array_enc << 0x2724
      when 0x45; array_enc << 0x2725
      when 0x46; array_enc << 0x2726
      when 0x47; array_enc << 0x2727
      when 0x48; array_enc << 0x2605
      when 0x49; array_enc << 0x2729
      when 0x4A; array_enc << 0x272A
      when 0x4B; array_enc << 0x272B
      when 0x4C; array_enc << 0x272C
      when 0x4D; array_enc << 0x272D
      when 0x4E; array_enc << 0x272E
      when 0x4F; array_enc << 0x272F
      when 0x50; array_enc << 0x2730
      when 0x51; array_enc << 0x2731
      when 0x52; array_enc << 0x2732
      when 0x53; array_enc << 0x2733
      when 0x54; array_enc << 0x2734
      when 0x55; array_enc << 0x2735
      when 0x56; array_enc << 0x2736
      when 0x57; array_enc << 0x2737
      when 0x58; array_enc << 0x2738
      when 0x59; array_enc << 0x2739
      when 0x5A; array_enc << 0x273A
      when 0x5B; array_enc << 0x273B
      when 0x5C; array_enc << 0x273C
      when 0x5D; array_enc << 0x273D
      when 0x5E; array_enc << 0x273E
      when 0x5F; array_enc << 0x273F
      when 0x60; array_enc << 0x2740
      when 0x61; array_enc << 0x2741
      when 0x62; array_enc << 0x2742
      when 0x63; array_enc << 0x2743
      when 0x64; array_enc << 0x2744
      when 0x65; array_enc << 0x2745
      when 0x66; array_enc << 0x2746
      when 0x67; array_enc << 0x2747
      when 0x68; array_enc << 0x2748
      when 0x69; array_enc << 0x2749
      when 0x6A; array_enc << 0x274A
      when 0x6B; array_enc << 0x274B
      when 0x6C; array_enc << 0x25CF
      when 0x6D; array_enc << 0x274D
      when 0x6E; array_enc << 0x25A0
      when 0x6F; array_enc << 0x274F
      when 0x70; array_enc << 0x2750
      when 0x71; array_enc << 0x2751
      when 0x72; array_enc << 0x2752
      when 0x73; array_enc << 0x2753
      when 0x74; array_enc << 0x2754
      when 0x75; array_enc << 0x2755
      when 0x76; array_enc << 0x2756
      when 0x77; array_enc << 0x2757
      when 0x78; array_enc << 0x2758
      when 0x79; array_enc << 0x2759
      when 0x7A; array_enc << 0x275A
      when 0x7B; array_enc << 0x275B
      when 0x7C; array_enc << 0x275C
      when 0x7D; array_enc << 0x275D
      when 0x7E; array_enc << 0x275E
      when 0x80; array_enc << 0xF8D7
      when 0x81; array_enc << 0xF8D8
      when 0x82; array_enc << 0xF8D9
      when 0x83; array_enc << 0xF8DA
      when 0x84; array_enc << 0xF8DB
      when 0x85; array_enc << 0xF8DC
      when 0x86; array_enc << 0xF8DD
      when 0x87; array_enc << 0xF8DE
      when 0x88; array_enc << 0xF8DF
      when 0x89; array_enc << 0xF8E0
      when 0x8A; array_enc << 0xF8E1
      when 0x8B; array_enc << 0xF8E2
      when 0x8C; array_enc << 0xF8E3
      when 0x8D; array_enc << 0xF8E4
      when 0xA1; array_enc << 0x2761
      when 0xA2; array_enc << 0x2762
      when 0xA3; array_enc << 0x2763
      when 0xA4; array_enc << 0x2764
      when 0xA5; array_enc << 0x2765
      when 0xA6; array_enc << 0x2766
      when 0xA7; array_enc << 0x2767
      when 0xA8; array_enc << 0x2663
      when 0xA9; array_enc << 0x2666
      when 0xAA; array_enc << 0x2665
      when 0xAB; array_enc << 0x2660
      when 0xAC; array_enc << 0x2460
      when 0xAD; array_enc << 0x2461
      when 0xAE; array_enc << 0x2462
      when 0xAF; array_enc << 0x2463
      when 0xB0; array_enc << 0x2464
      when 0xB1; array_enc << 0x2465
      when 0xB2; array_enc << 0x2466
      when 0xB3; array_enc << 0x2467
      when 0xB4; array_enc << 0x2468
      when 0xB5; array_enc << 0x2469
      when 0xB6; array_enc << 0x2776
      when 0xB7; array_enc << 0x2777
      when 0xB8; array_enc << 0x2778
      when 0xB9; array_enc << 0x2779
      when 0xBA; array_enc << 0x277A
      when 0xBB; array_enc << 0x277B
      when 0xBC; array_enc << 0x277C
      when 0xBD; array_enc << 0x277D
      when 0xBE; array_enc << 0x277E
      when 0xBF; array_enc << 0x277F
      when 0xC0; array_enc << 0x2780
      when 0xC1; array_enc << 0x2781
      when 0xC2; array_enc << 0x2782
      when 0xC3; array_enc << 0x2783
      when 0xC4; array_enc << 0x2784
      when 0xC5; array_enc << 0x2785
      when 0xC6; array_enc << 0x2786
      when 0xC7; array_enc << 0x2787
      when 0xC8; array_enc << 0x2788
      when 0xC9; array_enc << 0x2789
      when 0xCA; array_enc << 0x278A
      when 0xCB; array_enc << 0x278B
      when 0xCC; array_enc << 0x278C
      when 0xCD; array_enc << 0x278D
      when 0xCE; array_enc << 0x278E
      when 0xCF; array_enc << 0x278F
      when 0xD0; array_enc << 0x2790
      when 0xD1; array_enc << 0x2791
      when 0xD2; array_enc << 0x2792
      when 0xD3; array_enc << 0x2793
      when 0xD4; array_enc << 0x2794
      when 0xD5; array_enc << 0x2795
      when 0xD6; array_enc << 0x2796
      when 0xD7; array_enc << 0x2797
      when 0xD8; array_enc << 0x2798
      when 0xD9; array_enc << 0x2799
      when 0xDA; array_enc << 0x279A
      when 0xDB; array_enc << 0x279B
      when 0xDC; array_enc << 0x279C
      when 0xDD; array_enc << 0x279D
      when 0xDE; array_enc << 0x279E
      when 0xDF; array_enc << 0x279F
      when 0xE0; array_enc << 0x27A0
      when 0xE1; array_enc << 0x27A1
      when 0xE2; array_enc << 0x27A2
      when 0xE3; array_enc << 0x27A3
      when 0xE4; array_enc << 0x27A4
      when 0xE5; array_enc << 0x27A5
      when 0xE6; array_enc << 0x27A6
      when 0xE7; array_enc << 0x27A7
      when 0xE8; array_enc << 0x27A8
      when 0xE9; array_enc << 0x27A9
      when 0xEA; array_enc << 0x27AA
      when 0xEB; array_enc << 0x27AB
      when 0xEC; array_enc << 0x27AC
      when 0xED; array_enc << 0x27AD
      when 0xEE; array_enc << 0x27AE
      when 0xEF; array_enc << 0x27AF
      when 0xF1; array_enc << 0x27B1
      when 0xF2; array_enc << 0x27B2
      when 0xF3; array_enc << 0x27B3
      when 0xF4; array_enc << 0x27B4
      when 0xF5; array_enc << 0x27B5
      when 0xF6; array_enc << 0x27B6
      when 0xF7; array_enc << 0x27B7
      when 0xF8; array_enc << 0x27B8
      when 0xF9; array_enc << 0x27B9
      when 0xFA; array_enc << 0x27BA
      when 0xFB; array_enc << 0x27BB
      when 0xFC; array_enc << 0x27BC
      when 0xFD; array_enc << 0x27BD
      when 0xFE; array_enc << 0x27BE
      else
        array_enc << num
      end
    end
  end

  # convert any glyph names to unicode codepoints
  array_enc = self.process_glyphnames(array_enc)

  # replace charcters that didn't convert to unicode nicely with something valid
  array_enc.collect! { |c| c ? c : PDF::Reader::Encoding::UNKNOWN_CHAR }

  # pack all our Unicode codepoints into a UTF-8 string
  ret = array_enc.pack("U*")

  # set the strings encoding correctly under ruby 1.9+
  ret.force_encoding("UTF-8") if ret.respond_to?(:force_encoding)

  return ret
end