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easily create simple evil-mode text objects
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; courtesy of Gordon Gustafson on StackOverflow | |
; originally posted 2014-03-15 | |
; http://stackoverflow.com/questions/18102004/emacs-evil-mode-how-to-create-a-new-text-object-to-select-words-with-any-non-sp | |
(defmacro define-and-bind-text-object (key start-regex end-regex) | |
(let ((inner-name (make-symbol "inner-name")) | |
(outer-name (make-symbol "outer-name"))) | |
`(progn | |
(evil-define-text-object ,inner-name (count &optional beg end type) | |
(evil-regexp-range count beg end type ,start-regex ,end-regex t)) | |
(evil-define-text-object ,outer-name (count &optional beg end type) | |
(evil-regexp-range count beg end type ,start-regex ,end-regex nil)) | |
(define-key evil-inner-text-objects-map ,key (quote ,inner-name)) | |
(define-key evil-outer-text-objects-map ,key (quote ,outer-name))))) | |
;;; Useage: | |
; between dollars sign: | |
(define-and-bind-text-object "$" "\\$" "\\$") | |
; between pipe characters: | |
(define-and-bind-text-object "|" "|" "|") | |
; from the letter b up to the letter c, bound to k (invoke with "vik"): | |
(define-and-bind-text-object "k" "b" "c") |
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