Class: CodeRay::Scanners::Ruby::Patterns::StringState

Inherits:
Struct
  • Object
show all
Defined in:
lib/coderay/scanners/ruby/patterns.rb

Constant Summary collapse

CLOSING_PAREN = 


OPENING_PAREN =



CLOSING_PAREN.invert


STRING_PATTERN =



Hash.new do |h, k|
  delim, interpreted = *k
  delim_pattern = Regexp.escape(delim.dup)  # dup: workaround for old Ruby
  if closing_paren = CLOSING_PAREN[delim]
    delim_pattern = delim_pattern[0..-1] if defined? JRUBY_VERSION  # JRuby fix
    delim_pattern << Regexp.escape(closing_paren)
  end
  delim_pattern << '\\\\' unless delim == '\\'
  
  special_escapes =
    case interpreted
    when :regexp_symbols
      '| ' + REGEXP_SYMBOLS.source
    when :words
      '| \s'
    end
  
  h[k] =
    if interpreted and not delim == '#'
      / (?= [#{delim_pattern}] | \# [{$@] #{special_escapes} ) /mx
    else
      / (?= [#{delim_pattern}] #{special_escapes} ) /mx
    end
end


HEREDOC_PATTERN =



Hash.new do |h, k|
  delim, interpreted, indented = *k
  delim_pattern = Regexp.escape(delim.dup)  # dup: workaround for old Ruby
  delim_pattern = / \n #{ '(?>[\ \t]*)' if indented } #{ Regexp.new delim_pattern } $ /x
  h[k] =
    if interpreted
      / (?= #{delim_pattern}() | \\ | \# [{$@] ) /mx  # $1 set == end of heredoc
    else
      / (?= #{delim_pattern}() | \\ ) /mx
    end
end




Instance Attribute Summary collapse




Instance Method Summary
collapse






Constructor Details





#initialize(kind, interpreted, delim, heredoc = false) ⇒ StringState







Returns a new instance of StringState.















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# File 'lib/coderay/scanners/ruby/patterns.rb', line 223

def initialize kind, interpreted, delim, heredoc = false
  if heredoc
    pattern = HEREDOC_PATTERN[ [delim, interpreted, heredoc == :indented] ]
    delim = nil
  else
    pattern = STRING_PATTERN[ [delim, interpreted] ]
    if paren = CLOSING_PAREN[delim]
      delim, paren = paren, delim
      paren_depth = 1
    end
  end
  super kind, interpreted, delim, heredoc, paren, paren_depth, pattern, :initial
end













Instance Attribute Details






#delim ⇒ Object







Returns the value of attribute delim








Returns:


    

  • 
(Object)
—

    

    the current value of delim
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def delim
  @delim
end













#heredoc ⇒ Object







Returns the value of attribute heredoc








Returns:


    

  • 
(Object)
—

    

    the current value of heredoc
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def heredoc
  @heredoc
end













#interpreted ⇒ Object







Returns the value of attribute interpreted








Returns:


    

  • 
(Object)
—

    

    the current value of interpreted
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def interpreted
  @interpreted
end













#next_state ⇒ Object







Returns the value of attribute next_state








Returns:


    

  • 
(Object)
—

    

    the current value of next_state
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def next_state
  @next_state
end













#paren ⇒ Object







Returns the value of attribute paren








Returns:


    

  • 
(Object)
—

    

    the current value of paren
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def paren
  @paren
end













#paren_depth ⇒ Object







Returns the value of attribute paren_depth








Returns:


    

  • 
(Object)
—

    

    the current value of paren_depth
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def paren_depth
  @paren_depth
end













#pattern ⇒ Object







Returns the value of attribute pattern








Returns:


    

  • 
(Object)
—

    

    the current value of pattern
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def pattern
  @pattern
end













#type ⇒ Object







Returns the value of attribute type








Returns:


    

  • 
(Object)
—

    

    the current value of type
    

    

    • 










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# File 'lib/coderay/scanners/ruby/patterns.rb', line 173

def type
  @type
end