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Re: how to replace old-style backquotes
From: |
Stefan Monnier |
Subject: |
Re: how to replace old-style backquotes |
Date: |
Mon, 27 Dec 2010 21:32:23 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
>> "(` ...)" --> "`..."
>> "(, ...)" --> ",..."
>> "(,@ ...)" --> ",@..."
> Hm, well, I think, yes. But don't complain at me if there is some
> corner case where that simple rule is not correct.
That's right. Another way to solve this is to use neither old- nor
new-style and simply use explicit symbol names. I.e. add backslash
before each comma and backquote:
(` ...) --> (\` ...)
(, ...) --> (\, ...)
(,@ ...) --> (\,@ ...)
>> Or is it more complex than that? E.g. does it matter how these are
>> nested
> Well, yes. Commas are only to be replaced in backquoted forms, but
> since that's the only use anyway...
Actually, while commas are usually only used within backquotes, the `
and , special syntax can also be used for other things than the
backquote macro.
Stefan