parameters: (n)
return_statement: return verifyCol
docstring: Helper method for defining parse actions that require matching at a specific
         column in the input text.
docstring_summary: Helper method for defining parse actions that require matching at a specific
         column in the input text.
docstring_tokens: Helper method for defining parse actions that require matching at a specific column in the input text .
function: def matchOnlyAtCol(n):
      """Helper method for defining parse actions that require matching at a specific
         column in the input text.
      """
      def verifyCol(strg,locn,toks):
          if col(locn,strg) != n:
              raise ParseException(strg,locn,"matched token not at column %d" % n)
      return verifyCol
function_tokens: def matchOnlyAtCol ( n ) : def verifyCol ( strg , locn , toks ) : if col ( locn , strg ) != n : raise ParseException ( strg , locn , "matched token not at column %d" % n ) return verifyCol