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Diffstat (limited to 'users/wpcarro/emacs/.emacs.d/wpc/string.el')
-rw-r--r-- | users/wpcarro/emacs/.emacs.d/wpc/string.el | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/users/wpcarro/emacs/.emacs.d/wpc/string.el b/users/wpcarro/emacs/.emacs.d/wpc/string.el new file mode 100644 index 000000000000..7e3f10c75adf --- /dev/null +++ b/users/wpcarro/emacs/.emacs.d/wpc/string.el @@ -0,0 +1,110 @@ +;;; string.el --- Library for working with strings -*- lexical-binding: t -*- + +;; Author: William Carroll <wpcarro@gmail.com> +;; Version: 0.0.1 +;; Package-Requires: ((emacs "24")) + +;;; Commentary: +;; Library for working with string. + +;;; Code: + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Dependencies +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(require 's) +(require 'dash) +;; TODO: Resolve the circular dependency that this introduces. +;; (require 'prelude) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Library +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(defun string-contains? (c x) + "Return t if X is in C." + (s-contains? c x)) + +(defun string-hookify (x) + "Append \"-hook\" to X." + (s-append "-hook" x)) + +(defun string-split (y x) + "Map string X into a list of strings that were separated by Y." + (s-split y x)) + +(defun string-ensure-hookified (x) + "Ensure that X has \"-hook\" appended to it." + (if (s-ends-with? "-hook" x) + x + (string-hookify x))) + +(defun string-format (x &rest args) + "Format template string X with ARGS." + (apply #'format (cons x args))) + +(defun string-concat (&rest strings) + "Joins `STRINGS' into onto string." + (apply #'s-concat strings)) + +(defun string-->symbol (string) + "Maps `STRING' to a symbol." + (intern string)) + +(defun string-<-symbol (symbol) + "Maps `SYMBOL' into a string." + (symbol-name symbol)) + +(defun string-prepend (prefix x) + "Prepend `PREFIX' onto `X'." + (s-concat prefix x)) + +(defun string-append (postfix x) + "Appen `POSTFIX' onto `X'." + (s-concat x postfix)) + +(defun string-surround (s x) + "Surrounds `X' one each side with `S'." + (->> x + (string-prepend s) + (string-append s))) + +;; TODO: Define a macro for defining a function and a test. + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Casing +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(defun string-caps->kebab (x) + "Change the casing of `X' from CAP_CASE to kebab-case." + (->> x + s-downcase + (s-replace "_" "-"))) + +(defun string-kebab->caps (x) + "Change the casing of X from CAP_CASE to kebab-case." + (->> x + s-upcase + (s-replace "-" "_"))) + +(defun string-lower->caps (x) + "Change the casing of X from lowercase to CAPS_CASE." + (->> x + s-upcase + (s-replace " " "_"))) + +(defun string-lower->kebab (x) + "Change the casing of `X' from lowercase to kebab-case." + (s-replace " " "-" x)) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Predicates +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(defun string-instance? (x) + "Return t if X is a string." + (stringp x)) + +(provide 'string) +;;; string.el ends here |