class RuboCop::Cop::Utils::FormatString::FormatSequence

@see ruby-doc.org/core-2.6.3/Kernel.html#method-i-format<br><br>For more complex formatting, Ruby supports a reference by name.
type character.
flags, width, and precision indicators, then terminated with a field
A format sequence consists of a percent sign, followed by optional<br><br>“‘<br>%[width]type
“`
The syntax of a format sequence is as follows.

def annotated? 

def annotated?
  name && @source.include?('<')
end

def arity

Number of arguments required for the format sequence 
def arity
  @source.scan('*').count + 1
end

def initialize(match) 

def initialize(match)
  @source = match[0]
  @begin_pos = match.begin(0)
  @end_pos = match.end(0)
  @flags = match[:flags].to_s + match[:more_flags].to_s
  @width = match[:width]
  @precision = match[:precision]
  @name = match[:name]
  @type = match[:type]
  @arg_number = match[:arg_number]
end

def max_digit_dollar_num 

def max_digit_dollar_num
  @source.scan(DIGIT_DOLLAR).map { |(digit_dollar_num)| digit_dollar_num.to_i }.max
end

def percent? 

def percent?
  type == '%'
end

def style 

def style
  if annotated?
    :annotated
  elsif template?
    :template
  else
    :unannotated
  end
end

def template? 

def template?
  name && @source.include?('{')
end