Class: TTFunk::Encoding::Windows1252

Inherits:
Object
  • Object
show all
Defined in:
lib/ttfunk/encoding/windows_1252.rb

Constant Summary collapse

TO_UNICODE =

XXX: Ruby 1.9.2 on OS X Lion segfaults on range1.zip(range2)

Hash[*(0..255).zip((0..255).to_a).flatten]
FROM_UNICODE = 
{}
POSTSCRIPT_GLYPH_MAPPING =

Maps Windows-1252 codes to their corresponding index in the Postscript glyph table (see TTFunk::Table::Post::Format10). If any entry in this array is a string, it is a postscript glyph that is not in the standard list, and which should be emitted specially in the TTF postscript table (‘post’, see format 2).

[
    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
    3,   4,   5,   6,   7,   8,   9,  10,  11,  12,  13,  14,  15,  16,  17,  18,
   19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,  30,  31,  32,  33,  34,
   35,  36,  37,  38,  39,  40,  41,  42,  43,  44,  45,  46,  47,  48,  49,  50,
   51,  52,  53,  54,  55,  56,  57,  58,  59,  60,  61,  62,  63,  64,  65,  66,
   67,  68,  69,  70,  71,  72,  73,  74,  75,  76,  77,  78,  79,  80,  81,  82,
   83,  84,  85,  86,  87,  88,  89,  90,  91,  92,  93,  94,  95,  96,  97,   0,
     "Euro",   0, 196, 166, 197, 171, 130, 194, 216, 198, 228, 190, 176,   0, 230,   0,
    0, 182, 183, 180, 181, 135, 178, 179, 217, 140, 229, 191, 177,   0, 231, 186,
    3, 163, 132, 133, 189, 150, 232, 134, 142, 139, 157, 169, 164,  16, 138, 218,
  131, 147, 242, 243, 141, 151, 136, 195, 222, 241, 158, 170, 245, 244, 246, 162,
  173, 201, 199, 174,  98,  99, 144, 100, 203, 101, 200, 202, 207, 204, 205, 206,
  233, 102, 211, 208, 209, 175, 103, 240, 145, 214, 212, 213, 104, 235, 237, 137,
  106, 105, 107, 109, 108, 110, 160, 111, 113, 112, 114, 115, 117, 116, 118, 119,
  234, 120, 122, 121, 123, 125, 124, 184, 161, 127, 126, 128, 129, 236, 238, 186
]

Class Method Summary collapse

Class Method Details

.covers?(character) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ttfunk/encoding/windows_1252.rb', line 41

def self.covers?(character)
  !FROM_UNICODE[character].nil?
end

.from_unicode(string) ⇒ Object 



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# File 'lib/ttfunk/encoding/windows_1252.rb', line 57

def self.from_unicode(string)
  from_unicode_codepoints(string.unpack("n*")).pack("C*")
end

.from_unicode_codepoints(array) ⇒ Object 



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# File 'lib/ttfunk/encoding/windows_1252.rb', line 65

def self.from_unicode_codepoints(array)
  array.map { |code| FROM_UNICODE[code] || 0 }
end

.from_utf8(string) ⇒ Object 



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# File 'lib/ttfunk/encoding/windows_1252.rb', line 53

def self.from_utf8(string)
  from_unicode_codepoints(string.unpack("U*")).pack("C*")
end

.to_unicode(string) ⇒ Object 



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# File 'lib/ttfunk/encoding/windows_1252.rb', line 49

def self.to_unicode(string)
  to_unicode_codepoints(string.unpack("C*")).pack("n*")
end

.to_unicode_codepoints(array) ⇒ Object 



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# File 'lib/ttfunk/encoding/windows_1252.rb', line 61

def self.to_unicode_codepoints(array)
  array.map { |code| TO_UNICODE[code] }
end

.to_utf8(string) ⇒ Object 



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# File 'lib/ttfunk/encoding/windows_1252.rb', line 45

def self.to_utf8(string)
  to_unicode_codepoints(string.unpack("C*")).pack("U*")
end