diff options
Diffstat (limited to 'emacs/.emacs.d/wpc')
-rw-r--r-- | emacs/.emacs.d/wpc/vector.el | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/emacs/.emacs.d/wpc/vector.el b/emacs/.emacs.d/wpc/vector.el index 6d2fe20d1209..20413ecfb1fa 100644 --- a/emacs/.emacs.d/wpc/vector.el +++ b/emacs/.emacs.d/wpc/vector.el @@ -1,5 +1,9 @@ ;;; vector.el --- Working with Elisp's Vector data type -*- lexical-binding: t -*- + ;; Author: William Carroll <wpcarro@gmail.com> +;; Version: 0.0.1 +;; URL: https://git.wpcarro.dev/wpcarro/briefcase +;; Package-Requires: ((emacs "25.1")) ;;; Commentary: ;; It might be best to think of Elisp vectors as tuples in languages like @@ -25,12 +29,12 @@ ;; Library ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -(defconst vector/enable-tests? t +(defconst vector-enable-tests? t "When t, run the tests defined herein.") -;; TODO: Consider labelling variadic functions like `vector/concat*' -;; vs. `vector/concat'. -(defun vector/concat (&rest args) +;; TODO: Consider labelling variadic functions like `vector-concat*' +;; vs. `vector-concat'. +(defun vector-concat (&rest args) "Return a new vector composed of all vectors in `ARGS'." (apply #'vconcat args)) @@ -38,39 +42,39 @@ ;; (definstance monoid vector ;; :empty (lambda () [])) -(defun vector/prepend (x xs) +(defun vector-prepend (x xs) "Add `X' to the beginning of `XS'." - (vector/concat `[,x] xs)) + (vector-concat `[,x] xs)) -(defun vector/append (x xs) +(defun vector-append (x xs) "Add `X' to the end of `XS'." - (vector/concat xs `[,x])) + (vector-concat xs `[,x])) -(defun vector/get (i xs) +(defun vector-get (i xs) "Return the value in `XS' at index, `I'." (aref xs i)) -(defun vector/set (i v xs) +(defun vector-set (i v xs) "Set index `I' to value `V' in `XS'. Returns a copy of `XS' with the updates." (let ((copy (vconcat [] xs))) (aset copy i v) copy)) -(defun vector/set! (i v xs) +(defun vector-set! (i v xs) "Set index `I' to value `V' in `XS'. This function mutates XS." (aset xs i v)) -(when vector/enable-tests? +(when vector-enable-tests? (let ((xs [1 2 3]) (ys [1 2 3])) - (prelude/assert (= 1 (vector/get 0 ys))) - (vector/set 0 4 ys) - (prelude/assert (= 1 (vector/get 0 ys))) - (prelude/assert (= 1 (vector/get 0 xs))) - (vector/set! 0 4 xs) - (prelude/assert (= 4 (vector/get 0 xs))))) + (prelude/assert (= 1 (vector-get 0 ys))) + (vector-set 0 4 ys) + (prelude/assert (= 1 (vector-get 0 ys))) + (prelude/assert (= 1 (vector-get 0 xs))) + (vector-set! 0 4 xs) + (prelude/assert (= 4 (vector-get 0 xs))))) ;; TODO: Decide between "remove" and "delete" as the appropriate verbs. ;; TODO: Implement this. |