tvl-depot/configs/shared/emacs/.emacs.d/wpc/string-functions.el
William Carroll 44e46bbce2 Fix Emacs installation
My Emacs installation would fail on new machines because:

* use-package
* evil
* paredit

use-package is needed to install everything else.

evil and paredit were required in functions.el and other places before they were
called like (use-package evil ...). This should improve things but not fix the
entire issue.
2019-03-11 23:08:23 +00:00

48 lines
1.2 KiB
EmacsLisp

;; functions.el --- String helper functions for my Emacs development -*- lexical-binding: t -*-
;; Author: William Carroll <wpcarro@gmail.com>
;;; Commentary:
;; String & Symbol helpers!
;;; Code:
;; Strings
(defun string/hookify (x)
"Append \"-hook\" to X."
(s-append "-hook" x))
(defun symbol->string (symbol)
"Alias for `symbol-name' with SYMBOL, since I can never remember that
function's name."
(symbol-name symbol))
(defun string->symbol (string)
"Alias for `intern' for STRING since I can never remember that function's
name."
(intern string))
(defun string/ensure-hookified (x)
"Ensure that X has \"-hook\" appended to it."
(if (s-ends-with? "-hook" x)
x
(string/hookify x)))
;; Symbols
(defun symbol/as-string (callback x)
"Treat the symbol, X, as a string while applying CALLBACK to it.
Coerce back to a symbol on the way out."
(->> x
symbol-name
callback
intern))
(defun symbol/hookify (x)
"Append \"-hook\" to X when X is a symbol."
(symbol/as-string #'string/hookify x))
(defun symbol/ensure-hookified (x)
"Ensure that X has \"-hook\" appended to it when X is a symbol."
(symbol/as-string #'string/ensure-hookified x))
(provide 'string-functions)
;;; string-functions.el ends here