Class: TextAlignment::CharMapping

Inherits:
Object
  • Object
show all
Defined in:
lib/text_alignment/char_mapping.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_text, char_mapping = nil, to_ignore_whitespaces = false) ⇒ CharMapping

Returns a new instance of CharMapping.



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# File 'lib/text_alignment/char_mapping.rb', line 85

def initialize(_text, char_mapping = nil, to_ignore_whitespaces = false)
	if to_ignore_whitespaces
		@method_get_positions_squeeze_ws = method(:get_positions_squeeze_ws_0)
		@method_squeeze_ws = method(:squeeze_ws_0!)
	else
		@method_get_positions_squeeze_ws = method(:get_positions_squeeze_ws_1)
		@method_squeeze_ws = method(:squeeze_ws_1!)
	end

	@text  = _text

	# sort by the length of the spell-outs is important
	char_mapping ||= TextAlignment::CHAR_MAPPING.sort{|a, b| b[1].length <=> a[1].length}
	@mapped_text, offset_mapping = enmap_text(_text, char_mapping)
	@index_enmap = offset_mapping.to_h
	@index_demap = offset_mapping.map{|m| m.reverse}.to_h
end

Instance Attribute Details

#index_enmap ⇒ Object (readonly)

Returns the value of attribute index_enmap.



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# File 'lib/text_alignment/char_mapping.rb', line 83

def index_enmap
  @index_enmap
end

#mapped_text ⇒ Object (readonly)

Returns the value of attribute mapped_text.



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# File 'lib/text_alignment/char_mapping.rb', line 83

def mapped_text
  @mapped_text
end

Instance Method Details

#demap_position(position) ⇒ Object 



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# File 'lib/text_alignment/char_mapping.rb', line 107

def demap_position(position)
	@index_demap[position]
end

#enmap_denotations(denotations) ⇒ Object 



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# File 'lib/text_alignment/char_mapping.rb', line 111

def enmap_denotations(denotations)
	return nil if denotations.nil?

	denotations.map do |d|
		d.dup.merge(span:{begin:enmap_position(d[:span][:begin]), end:enmap_position(d[:span][:end])})
	end
end

#enmap_position(position) ⇒ Object 



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# File 'lib/text_alignment/char_mapping.rb', line 103

def enmap_position(position)
	@index_enmap[position]
end