Class: Plurimath::Math::Symbol

Inherits:
Core
  • Object
show all
Defined in:
lib/plurimath/math/symbol.rb

Direct Known Subclasses

Unicode

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Core

#class_name, #empty_tag, #omml_parameter, #r_element

Constructor Details

#initialize(sym) ⇒ Symbol

Returns a new instance of Symbol.



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# File 'lib/plurimath/math/symbol.rb', line 8

def initialize(sym)
  @value = sym.is_a?(Parslet::Slice) ? sym.to_s : sym
end

Instance Attribute Details

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/plurimath/math/symbol.rb', line 6

def value
  @value
end

Instance Method Details

#==(object) ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 12

def ==(object)
  object.value == value
end

#insert_t_tag ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 65

def insert_t_tag
  r_tag = Utility.ox_element("r", namespace: "m")
  r_tag << (Utility.ox_element("t", namespace: "m") << value)
  [r_tag]
end

#nary_attr_value ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 75

def nary_attr_value
  value
end

#tag_name ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 71

def tag_name
  ["&#x22c0;", "&#x22c1;", "&#x22c2;", "&#x22c3;"].include?(value) ? "underover" : "subsup"
end

#to_asciimath ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 16

def to_asciimath
  return "" if value.nil?

  symbol = Asciimath::Constants::SYMBOLS.invert[value.strip.to_sym]
  unicodes = Latex::Constants::UNICODE_SYMBOLS.invert
  if value.match?(/&#x[0-9\w]+;/) && symbol.nil? && unicodes[value]
    return unicodes[value].to_s
  end

  symbol ? symbol.to_s : value
end

#to_html ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 57

def to_html
  value
end

#to_latex ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 42

def to_latex
  returned = specific_values
  return returned if returned

  special_char = %w[&#x26; &#x23;]
  symbols = Latex::Constants::UNICODE_SYMBOLS.invert

  symbol = symbols[value]
  if Latex::Constants::SYMBOLS[symbol] == :operant
    special_char.include?(value) ? "\\#{symbol}" : symbol
  else
    symbols.key?(value) ? "\\#{symbol}" : value
  end
end

#to_mathml_without_math_tag ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 28

def to_mathml_without_math_tag
  mi_tag = Utility.ox_element("mi")
  return mi_tag if ["{:", ":}"].include?(value)

  unicodes = Mathml::Constants::UNICODE_SYMBOLS
  unicode = unicodes.invert[value]
  if operator?(unicode) || unicode || explicit_checks(unicode)
    mo_value = (unicodes[value] || unicode || value).to_s
    return Utility.ox_element("mo") << mo_value
  end

  mi_tag << value
end

#to_omml_without_math_tag ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 61

def to_omml_without_math_tag
  value
end

#validate_function_formula ⇒ Object 



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# File 'lib/plurimath/math/symbol.rb', line 79

def validate_function_formula
  false
end