In xmtn-dvc.el, xmtn-dvc-ignore-file-extensions uses this syntax:
(mapcar #'file-name-extension file-names)
Other places doing the same thing use this syntax:
(mapcar 'file-name-extension file-names)
I'm working on moving the common UI part of this code up into
dvc-unified, so I'm trying to understand the difference.
The elisp manual, in node 'function cells', says:
We sometimes write `function' instead of `quote' when quoting the
name of a function, but this usage is just a sort of comment:
(function SYMBOL) == (quote SYMBOL) == 'SYMBOL
The read syntax `#'' is a short-hand for using `function'. For
example,
#'(lambda (x) (* x x))
is equivalent to
(function (lambda (x) (* x x)))
Earlier, it says:
Using `function' instead of `quote' makes a difference if you
compile the function `double-property'. For example, if you
compile the second definition of `double-property', the anonymous
function is compiled as well. By contrast, if you compile the
first definition which uses ordinary `quote', the argument passed
to `change-property' is the precise list shown.
So I think Christian added `#' in order to improve byte-compiling, but
I don't think it means anything in this case, since the function is a
symbol, not a list.
Is this just a style issue, or have I missed something?
--
-- Stephe
_______________________________________________
Dvc-dev mailing list
[email protected]
https://mail.gna.org/listinfo/dvc-dev
