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 811

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|
    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

  # 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