>> I rest my case: you're confusing variables and symbols.
>> Symbols are fundamentally nothing more than hash-consed strings.
>>
>> Symbols are created by the lexer, not by the evaluator, so insertion into
>> a big obarray only affects the performance of the lexer/parser.
>>
>>
>> Stefan
> Thanks, I guess I understand a bit more. Just out of curiosity: Does the
> lexer/parser know that it is a let variable at the time the symbol is
> inserted or is that information only available later to the evaluator?
The lexer/parser doesn't even know if it's parsing code or data. That's the
meaning of "syntax" as opposed to "semantics".
Stefan
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