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From: Patricia Ferreira <pferreira@example.com>
Newsgroups: pt.comp.programacao
Subject: Re: sobre common lisp e o sistema de arquivos
Date: Tue, 23 Jan 2024 15:42:20 -0300
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Patricia Ferreira <pferreira@example.com> writes:

> Patricia Ferreira <pferreira@example.com> writes:
>
>> Patricia Ferreira <pferreira@example.com> writes:
>>
>>> Tenho lido vários pedaços de documentação Common Lisp por aí, livros
>>> incluindo.  Antes de falar com o sistema de arquivos, vale a pena ler o
>>> capítulo 14 de Peter Seibel ``Practical Common Lisp''.
>>>
>>>   Files and File I/O
>>>   https://gigamonkeys.com/book/files-and-file-io.html
>>>
>>>   ``When pathnames were designed, the set of file systems in general use
>>>   was quite a bit more variegated than those in common use today.
>>>   Consequently, some nooks and crannies of the pathname abstraction make
>>>   little sense if all you're concerned about is representing Unix or
>>>   Windows filenames.''
>>
>> Eis o tipo de armadilha contras as quais estamos.
>>
>> NNTPD> (rename-file (make-pathname :name "1" :type "tmp")
>> (make-pathname :name "2" :type "txt"))
>> Failed to find the TRUENAME of
>> "c:\\[...]\\quicklisp\\local-projects\\nntp\\groups\\1.tmp":
>>
>> Lol.  Não consigo nem renomear um arquivo.
>
> Eis a próxima.
>
> NNTPD> (rename-file "3.txt" "3")
> #P"c:/[...]/nntp/groups/local.test/3.txt"
> #P"c:/[...]/nntp/groups/local.test/3.txt"
> #P"c:/[...]/nntp/groups/local.test/3.txt"
>
> Não é fácil renomear um arquivo sem uma ``extensão'', que Common Lisp
> adequadamente chama de ``type''.  Tentei também um experimento aleatório
> como
>
>   (make-pathname :name "3" :type nil)
>
> com mesmo comportamento.  Desisti de não usar extensões.

Lol.  /Shame on me./  Em vez de NIL, basta :type "".