Re: [Emacs-diffs] emacs-25 fb7c581: Minor correction to pcase docstring

Re: [Emacs-diffs] emacs-25 fb7c581: Minor correction to pcase docstring

[Stefan Monnier]

> +of values.  For example, the pattern (foo bar) matches any two

Hmm...no.

>  meaning they must match exactly: The pattern (\\='foo \\='bar)
>  matches only against two element lists containing the symbols

Hmm...still not.

If you want (...) to mean "the pattern that matches a list ..." then you
need a backquote in front:

  `(foo bar) matches a list containing the symbols `foo' and `bar'.

  `(,foo ,bar) matches any two-element list.

The intuition is that the pattern matches elements that could be the
result of evaluating an expression of the same shape.


        Stefan

Re: [Emacs-diffs] emacs-25 fb7c581: Minor correction to pcase docstring

[John Wiegley]

>>>>> Stefan Monnier <monnier@iro.umontreal.ca> writes:

> If you want (...) to mean "the pattern that matches a list ..." then you
> need a backquote in front:

Thanks, Stefan, I didn't test fully enough before committing. I didn't realize
that using a list in a pattern always requires a backquote, though I can see
now why it does. I'll fix the docstring.

-- 
John Wiegley                  GPG fingerprint = 4710 CF98 AF9B 327B B80F
http://newartisans.com                          60E1 46C4 BD1A 7AC1 4BA2