On Jun 25, 4:14 pm, Rich Hickey <[email protected]> wrote:
> (let [x map inc nums)] ...)
>
> Clearly the message: "java.lang.Exception: Missing delimiter: ]" would
> not be helpful here.
But perhaps the message:
java.lang.Exception: Unmatched delimiter ')', expecting ']'
Would be quite useful? It would tell the user that the unmatched
delimiter was inside the [] block.
Some languages go a step further, and highlight syntax errors directly
with some ASCII art:
Unmatched delimiter:
(let [x map inc nums)]
^
Though that seems quite tricky to do within the limits of Java's
exception handling. You couldn't really guarentee your output would be
to a terminal with a fixed-width font.
- James
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