Class: Ronin::Code::SQL::Like

Inherits:
Expr
  • Object
show all
Defined in:
lib/ronin/code/sql/like.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Expr

#===, #in?, #not_in?

Constructor Details

#initialize(op, left, right, escape = nil) ⇒ Like

Returns a new instance of Like.



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# File 'lib/ronin/code/sql/like.rb', line 38

def initialize(op,left,right,escape=nil)
  @op = op
  @left = left
  @right = right
  @escape = escape
  @negated = false
end

Instance Attribute Details

#left ⇒ Object (readonly)

Left-hand side



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# File 'lib/ronin/code/sql/like.rb', line 33

def left
  @left
end

#op ⇒ Object (readonly)

Operator



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# File 'lib/ronin/code/sql/like.rb', line 30

def op
  @op
end

#right ⇒ Object (readonly)

Right-hand side



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# File 'lib/ronin/code/sql/like.rb', line 36

def right
  @right
end

Instance Method Details

#emit ⇒ Object 



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# File 'lib/ronin/code/sql/like.rb', line 54

def emit
  tokens = emit_value(@left)

  tokens += emit_token('NOT') if @negated

  tokens += emit_token(@op)
  tokens += emit_value(@right)

  if @escape
    tokens += emit_token('ESCAPE')
    tokens << @escape.to_s[0..0]
  end

  return tokens
end

#escape(str) ⇒ Object 



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# File 'lib/ronin/code/sql/like.rb', line 46

def escape(str)
  @escape = str
end

#not! ⇒ Object 



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# File 'lib/ronin/code/sql/like.rb', line 50

def not!
  @negated = true
end