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Re: An alias named `done` breaks for loops
From: |
Oğuz |
Subject: |
Re: An alias named `done` breaks for loops |
Date: |
Sun, 15 Aug 2021 07:58:14 +0300 |
On Sun, Aug 15, 2021 at 1:59 AM George Nachman <gnachman@llamas.org> wrote:
> `done` should not be considered a simple command in the context where it
> would terminate a for loop. Alternately, prevent the user from creating
> aliases that will cause problems like this.
There already is an alias substitution rule for preventing these problems:
The first word of the replacement text is tested for aliases, but
a word that is identical to an alias being expanded is not expanded a
second time.
and I think that's enough; you can still produce reserved words and
have them recognized as such. There is no need for such radical
changes to the language.