162 lines
4.4 KiB
Scilab
162 lines
4.4 KiB
Scilab
class String
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String self.new_string(int len )
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len = len << 2
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return super.new_object( len)
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end
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int length()
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return self.length
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end
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int plus(String str)
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my_length = self.length
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str_len = str.length()
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my_length = str_len + my_length
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new_string = self.new_string(my_length )
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i = 0
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while( i < my_length)
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char = get(i)
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new_string.set(i , char)
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i = i + 1
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end
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i = 0
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while( i < str_len)
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char = str.get(i)
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len = i + my_length
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new_string.set( len , char)
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i = i + 1
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end
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return new_string
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end
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end
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-- -- --
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s(:statements,
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s(:class, :String,
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s(:derives, nil),
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s(:statements,
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s(:function, :String,
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s(:name, :new_string),
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s(:parameters,
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s(:parameter, :Integer, :len)),
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s(:statements,
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s(:assignment,
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s(:name, :len),
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s(:operator_value, :<<,
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s(:name, :len),
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s(:int, 2))),
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s(:return,
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s(:call,
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s(:name, :new_object),
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s(:arguments,
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s(:name, :len)),
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s(:receiver,
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s(:name, :super))))),
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s(:receiver, :self)),
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s(:function, :Integer,
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s(:name, :length),
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s(:parameters),
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s(:statements,
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s(:return,
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s(:field_access,
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s(:receiver,
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s(:name, :self)),
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s(:field,
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s(:name, :length)))))),
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s(:function, :Integer,
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s(:name, :plus),
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s(:parameters,
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s(:parameter, :String, :str)),
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s(:statements,
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s(:assignment,
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s(:name, :my_length),
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s(:field_access,
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s(:receiver,
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s(:name, :self)),
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s(:field,
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s(:name, :length)))),
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s(:assignment,
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s(:name, :str_len),
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s(:call,
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s(:name, :length),
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s(:arguments),
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s(:receiver,
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s(:name, :str)))),
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s(:assignment,
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s(:name, :my_length),
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s(:operator_value, :+,
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s(:name, :str_len),
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s(:name, :my_length))),
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s(:assignment,
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s(:name, :new_string),
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s(:call,
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s(:name, :new_string),
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s(:arguments,
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s(:name, :my_length)),
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s(:receiver,
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s(:name, :self)))),
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s(:assignment,
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s(:name, :i),
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s(:int, 0)),
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s(:while_statement,
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s(:condition,
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s(:operator_value, :<,
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s(:name, :i),
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s(:name, :my_length))),
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s(:statements,
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s(:assignment,
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s(:name, :char),
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s(:call,
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s(:name, :get),
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s(:arguments,
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s(:name, :i)))),
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s(:call,
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s(:name, :set),
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s(:arguments,
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s(:name, :i),
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s(:name, :char)),
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s(:receiver,
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s(:name, :new_string))),
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s(:assignment,
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s(:name, :i),
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s(:operator_value, :+,
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s(:name, :i),
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s(:int, 1))))),
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s(:assignment,
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s(:name, :i),
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s(:int, 0)),
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s(:while_statement,
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s(:condition,
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s(:operator_value, :<,
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s(:name, :i),
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s(:name, :str_len))),
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s(:statements,
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s(:assignment,
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s(:name, :char),
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s(:call,
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s(:name, :get),
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s(:arguments,
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s(:name, :i)),
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s(:receiver,
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s(:name, :str)))),
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s(:assignment,
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s(:name, :len),
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s(:operator_value, :+,
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s(:name, :i),
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s(:name, :my_length))),
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s(:call,
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s(:name, :set),
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s(:arguments,
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s(:name, :len),
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s(:name, :char)),
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s(:receiver,
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s(:name, :new_string))),
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s(:assignment,
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s(:name, :i),
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s(:operator_value, :+,
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s(:name, :i),
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s(:int, 1))))),
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s(:return,
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s(:name, :new_string)))))))
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