Mozart IDE(Emacs)解析错误求助：Oz代码报错如何修复？

Hey there! Let's break down this issue and get your code running smoothly.

What the Error Means #

That parse error in file Oz, line 6, column 1 message tells you the Oz interpreter can't understand the syntax of your code at that specific spot. In your case, the problem is an extra, unnecessary end statement that breaks the structure of your function definition.

Why It Happens #

Oz follows a strict structure for function declarations: the standard pattern is declare fun {FunctionName Parameters} FunctionBody end. Your code has an extra end tacked on after the function's closing end—the interpreter sees this extra keyword as a random, unconnected syntax element that doesn't fit into the code's structure, hence the parse failure.

The Fixed Code #

Simply remove that extra end and your code will work as expected. Here's the corrected version:

declare
fun {Mult X Y}
  X*Y
end
{Browse {Mult 1 1}}

When you run this, it’ll calculate 1*1 correctly and display the result in Mozart’s browser window.

内容的提问来源于stack exchange，提问作者Hank