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 220

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 170

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 170

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 170

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 170

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 170

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 170

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 170

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 170

def type
  @type
end