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Class: Encoding

Inherits:
Object show all
Defined in:
opal/stdlib/encoding.rb

Defined Under Namespace

Classes: CompatibilityError , EncodingError

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, names, ascii, dummy) ⇒ Encoding

Returns a new instance of Encoding

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# File 'opal/stdlib/encoding.rb', line 35
def initialize(name, names, ascii, dummy)
 @name = name
 @names = names
 @ascii = ascii
 @dummy = dummy
end

Class Attribute Details

.default_externalObject

Returns the value of attribute default_external

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# File 'opal/stdlib/encoding.rb', line 30
def default_external
 @default_external
end

Instance Attribute Details

#nameObject (readonly)

Returns the value of attribute name

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# File 'opal/stdlib/encoding.rb', line 33
def name
 @name
end

#namesObject (readonly)

Returns the value of attribute names

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# File 'opal/stdlib/encoding.rb', line 33
def names
 @names
end

Class Method Details

.find(name) ⇒ Object

Raises:

  • (ArgumentError)
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# File 'opal/stdlib/encoding.rb', line 14
def self.find(name)
 upcase_name = name.upcase
 return upcase_name if self === upcase_name
 constants.each {|const|
 encoding = const_get(const)
 if encoding.name == upcase_name || encoding.names.include?(upcase_name)
 return encoding
 end
 }
 raise ArgumentError, "unknown encoding name - #{name}"
end

.register(name, options = {}, &block) ⇒ Object

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# File 'opal/stdlib/encoding.rb', line 4
def self.register(name, options = {}, &block)
 names = [name] + (options[:aliases] || [])
 encoding = Class .new(self, &block).
 new(name, names, options[:ascii] || false, options[:dummy] || false)
 names.each {|name|
 const_set name.sub('-', '_'), encoding
 }
end

Instance Method Details

#ascii_compatible?Boolean

Returns:

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# File 'opal/stdlib/encoding.rb', line 42
def ascii_compatible?
 @ascii
end

#bytesizeObject

Raises:

  • (NotImplementedError)
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# File 'opal/stdlib/encoding.rb', line 67
def bytesize(*)
 raise NotImplementedError
end

#dummy?Boolean

Returns:

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# File 'opal/stdlib/encoding.rb', line 46
def dummy?
 @dummy
end

#each_byteObject

methods to implement per encoding

Raises:

  • (NotImplementedError)
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# File 'opal/stdlib/encoding.rb', line 59
def each_byte(*)
 raise NotImplementedError
end

#getbyteObject

Raises:

  • (NotImplementedError)
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# File 'opal/stdlib/encoding.rb', line 63
def getbyte(*)
 raise NotImplementedError
end

#inspectObject

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# File 'opal/stdlib/encoding.rb', line 54
def inspect
 "#<Encoding:#{@name}#{" (dummy)" if @dummy}>"
end

#to_sObject

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# File 'opal/stdlib/encoding.rb', line 50
def to_s
 @name
end

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