class Numerals::Format::LatexNotation

Public Instance Methods

assemble(output, text_parts) click to toggle source
# File lib/numerals/format/notations/latex.rb, line 7
def assemble(output, text_parts)
  # 1.23\overline{456}\times10^{9}
  # TODO: padding
  if text_parts.special?
    output << text_parts.special
  else
    output << text_parts.sign
    if format.symbols.base_prefix
      output << format.symbols.base_prefix
    end
    output << text_parts.integer # or decide here if empty integer part is shown as 0?
    if text_parts.show_point?(format)
      output << format.symbols.point
    end
    output << text_parts.fractional
    if text_parts.repeat?
      output << "\\overline{#{text_parts.repeat}}"
    end
    if format.symbols.base_suffix || format.base != 10
      if format.symbols.base_prefix
        output << format.symbols.base_suffix
      else
        # show base suffix as a subscript
        subscript = format.symbols.base_suffix || base.to_s
        output << "_{#{subscript}}"
      end
    end
    if text_parts.exponent_value != 0 || format.mode.mode == :scientific
      output << "\\times"
      output << text_parts.exponent_base
      output << "^"
      output << "{#{text_parts.exponent}}"
    end
  end
end

Private Instance Methods

escape(text) click to toggle source
# File lib/numerals/format/notations/latex.rb, line 45
def escape(text)
  text.gsub('\\', '\\\\')
end
unescape(text) click to toggle source
# File lib/numerals/format/notations/latex.rb, line 49
def unescape(text)
  text.gsub('\\\\', '\\')
end