Class: TTFunk::Encoding::MacRoman

Inherits:
Object
  • Object
show all
Defined in:
lib/ttfunk/encoding/mac_roman.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 MacRoman 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, # 0x0F
    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0, # 0x1F
    3,   4,   5,   6,   7,   8,   9,  10,  11,  12,  13,  14,  15,  16,  17,  18, # 0x2F
   19,  20,  21,  22,  23,  24,  25,  26,  27,  28,  29,  30,  31,  32,  33,  34, # 0x3F
   35,  36,  37,  38,  39,  40,  41,  42,  43,  44,  45,  46,  47,  48,  49,  50, # 0x4F
   51,  52,  53,  54,  55,  56,  57,  58,  59,  60,  61,  62,  63,  64,  65,  66, # 0x5F
   67,  68,  69,  70,  71,  72,  73,  74,  75,  76,  77,  78,  79,  80,  81,  82, # 0x6F
   83,  84,  85,  86,  87,  88,  89,  90,  91,  92,  93,  94,  95,  96,  97,   0, # 0x7F
   98,  99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, # 0x8F
  114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, # 0x9F
  130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, # 0xAF
  146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, # 0xBF
  162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, # 0xCF
  178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, "Euro", 190, 191, 192, 193, # 0xDF
  194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, # 0xEF
  210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225  # 0xFF
]

Class Method Summary collapse

Class Method Details

.covers?(character) ⇒ Boolean

Returns:

  • (Boolean) 


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

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

.from_unicode(string) ⇒ Object 



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# File 'lib/ttfunk/encoding/mac_roman.rb', line 77

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/mac_roman.rb', line 85

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/mac_roman.rb', line 73

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/mac_roman.rb', line 69

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/mac_roman.rb', line 81

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/mac_roman.rb', line 65

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