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Class: Scanf::FormatString

Do not use. This class is for internal use only.
Relationships & Source Files
Inherits: Object
Defined in: lib/scanf.rb

Constant Summary

  • REGEX =
    # File 'lib/scanf.rb', line 495 
    /
        # possible space, followed by...
          (?:\s*
          # percent sign, followed by...
            %
            # another percent sign, or...
(?:%|
   # optional assignment suppression flag
   \*?
   # optional maximum field width
   \d*
     # named character class, ...
     (?:\[\[:\w+:\]\]|
     # traditional character class, or...
        \[[^\]]*\]|
     # specifier letter.
        [#{SPECIFIERS}])))|
            # or miscellaneous characters
[^%\s]+/ix
  • SPECIFIERS =
    # File 'lib/scanf.rb', line 494 
    'diuXxofFeEgGscaA'

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(str) ⇒ FormatString

[ GitHub ] 

  


# File 'lib/scanf.rb', line 515



def initialize(str)
  @specs = []
  @i = 1
  s = str.to_s
  return unless /\S/.match(s)
  @space = true if /\s\z/.match(s)
  @specs.replace s.scan(REGEX).map {|spec| FormatSpecifier.new(spec) }
end


  







Instance Attribute Details



  

    #last_match_tried   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 491



attr_reader :string_left, :last_spec_tried,
            :last_match_tried, :matched_count, :space


  








  

    #last_spec_tried   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 491



attr_reader :string_left, :last_spec_tried,
            :last_match_tried, :matched_count, :space


  








  

    #matched_count   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 491



attr_reader :string_left, :last_spec_tried,
            :last_match_tried, :matched_count, :space


  








  

    #space   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 491



attr_reader :string_left, :last_spec_tried,
            :last_match_tried, :matched_count, :space


  








  

    #string_left   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 491



attr_reader :string_left, :last_spec_tried,
            :last_match_tried, :matched_count, :space


  







Instance Method Details



  

    #last_spec  
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 536



def last_spec
  @i == spec_count - 1
end


  








  

    #match(str)  
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 540



def match(str)
  accum = []
  @string_left = str
  @matched_count = 0

  @specs.each_with_index do |spec,i|
    @i=i
    @last_spec_tried = spec
    @last_match_tried = spec.match(@string_left)
    break unless @last_match_tried
    @matched_count += 1

    accum << spec.conversion

    @string_left = @last_match_tried.post_match
    break if @string_left.empty?
  end
  return accum.compact
end


  








  

    #prune(n = matched_count)  
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 528



def prune(n=matched_count)
  n.times { @specs.shift }
end


  








  

    #spec_count  
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 532



def spec_count
  @specs.size
end


  








  

    #to_s  
  

  [ GitHub ]


  

  


# File 'lib/scanf.rb', line 524



def to_s
  @specs.join('')
end