Class: ICU::BreakIterator

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/ffi-icu/break_iterator.rb

Constant Summary collapse

DONE = 
-1

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type, locale) ⇒ BreakIterator

Returns a new instance of BreakIterator.



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# File 'lib/ffi-icu/break_iterator.rb', line 17

def initialize(type, locale)
  ptr = Lib.check_error { |err| Lib.ubrk_open(type, locale, nil, 0, err) }
  @iterator = FFI::AutoPointer.new(ptr, Lib.method(:ubrk_close))
end

Instance Attribute Details

#text ⇒ Object

Returns the value of attribute text.



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# File 'lib/ffi-icu/break_iterator.rb', line 7

def text
  @text
end

Class Method Details

.available_locales ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 11

def self.available_locales
  (0...Lib.ubrk_countAvailable).map do |idx|
    Lib.ubrk_getAvailable(idx)
  end
end

Instance Method Details

#boundary?(offset) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ffi-icu/break_iterator.rb', line 90

def boundary?(offset)
  Lib.ubrk_isBoundary(@iterator, Integer(offset)) != 0
end

#current ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 86

def current
  Lib.ubrk_current(@iterator)
end

#each ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 30

def each
  return to_enum(:each) unless block_given?

  int = first

  while int != DONE
    yield(int)
    int = self.next
  end

  self
end

#each_substring ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 43

def each_substring
  return to_enum(:each_substring) unless block_given?

  # each_char needed for 1.8, where String#[] works on bytes, not characters
  chars = text.each_char.to_a
  low   = first

  while (high = self.next) != DONE
    yield(chars[low...high].join)
    low = high
  end

  self
end

#first ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 70

def first
  Lib.ubrk_first(@iterator)
end

#following(offset) ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 82

def following(offset)
  Lib.ubrk_following(@iterator, Integer(offset))
end

#last ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 74

def last
  Lib.ubrk_last(@iterator)
end

#next ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 62

def next
  Lib.ubrk_next(@iterator)
end

#preceding(offset) ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 78

def preceding(offset)
  Lib.ubrk_preceding(@iterator, Integer(offset))
end

#previous ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 66

def previous
  Lib.ubrk_next(@iterator)
end

#substrings ⇒ Object 



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# File 'lib/ffi-icu/break_iterator.rb', line 58

def substrings
  each_substring.to_a
end