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docs/faq: add "Why sharp-quote functions"

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Henrik Lissner 2020-07-23 17:47:49 -04:00
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@ -51,6 +51,8 @@
- [[#why-do-non-evil-users-get-expand-region-but-not-evil-users][Why do non-evil users get expand-region, but not evil users?]] - [[#why-do-non-evil-users-get-expand-region-but-not-evil-users][Why do non-evil users get expand-region, but not evil users?]]
- [[#why-not-use-exec-path-from-shell-instead-of-doom-env][Why not use exec-path-from-shell instead of ~doom env~?]] - [[#why-not-use-exec-path-from-shell-instead-of-doom-env][Why not use exec-path-from-shell instead of ~doom env~?]]
- [[#why-wsbutler-over-delete-trailing-whitespace-or-whitespace-cleanup][Why wsbutler over delete-trailing-whitespace or whitespace-cleanup?]] - [[#why-wsbutler-over-delete-trailing-whitespace-or-whitespace-cleanup][Why wsbutler over delete-trailing-whitespace or whitespace-cleanup?]]
- [[#emacs-lisp][Emacs Lisp]]
- [[#why-do-you-quote-some-symbols-with-symbol][Why do you quote some symbols with ~#'symbol~?]]
- [[#common-issues][Common Issues]] - [[#common-issues][Common Issues]]
- [[#i-get-the-vanilla-emacs-splash-screen-at-startup][I get the vanilla Emacs splash screen at startup]] - [[#i-get-the-vanilla-emacs-splash-screen-at-startup][I get the vanilla Emacs splash screen at startup]]
- [[#i-see-a-blank-scratch-buffer-at-startup][I see a blank scratch buffer at startup]] - [[#i-see-a-blank-scratch-buffer-at-startup][I see a blank scratch buffer at startup]]
@ -989,6 +991,19 @@ cleanup work.
In any case, if you had used =ws-butler= from the beginning, trailing whitespace In any case, if you had used =ws-butler= from the beginning, trailing whitespace
and newlines would never be a problem! and newlines would never be a problem!
* Emacs Lisp
** Why do you quote some symbols with ~#'symbol~?
~#'symbol~ is short for ~(function symbol)~, the same way ~'symbol~ is short for
~(quote symbol)~.
In elisp there is no /functional/ difference between the two syntaxes, but the
sharp-quote does hint to the byte-compiler that "this symbol refers to a
function", which it can perform additional checks on when the code is
byte-compiled.
My reason for using it is to make it explicit to readers how I intend (or
expect) the symbol to be used. No sharp-quote means I'm using the symbol as a
literal data value.
* Common Issues * Common Issues
** I get the vanilla Emacs splash screen at startup ** I get the vanilla Emacs splash screen at startup