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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/engine-mode-20180401.946/engine-mode.el')
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diff --git a/configs/shared/emacs/.emacs.d/elpa/engine-mode-20180401.946/engine-mode.el b/configs/shared/emacs/.emacs.d/elpa/engine-mode-20180401.946/engine-mode.el new file mode 100644 index 0000000000..caf724cf0d --- /dev/null +++ b/configs/shared/emacs/.emacs.d/elpa/engine-mode-20180401.946/engine-mode.el @@ -0,0 +1,178 @@ +;;; engine-mode.el --- Define and query search engines from within Emacs. + +;; Author: Harry R. Schwartz <hello@harryrschwartz.com> +;; Version: 2.1.0 +;; Package-Version: 20180401.946 +;; URL: https://github.com/hrs/engine-mode +;; Package-Requires: ((cl-lib "0.5")) + +;; This file is NOT part of GNU Emacs. + +;;; Commentary: + +;; `engine-mode' is a global minor mode for Emacs. It enables you to +;; easily define search engines, bind them to keybindings, and query +;; them from the comfort of your editor. + +;; For example, suppose we want to be able to easily search GitHub: + +;; (defengine github +;; "https://github.com/search?ref=simplesearch&q=%s") + +;; This defines an interactive function `engine/search-github'. When +;; executed it will take the selected region (or prompt for input, if +;; no region is selected) and search GitHub for it, displaying the +;; results in your default browser. + +;; The `defengine' macro can also take an optional key combination, +;; prefixed with "C-x /": + +;; (defengine duckduckgo +;; "https://duckduckgo.com/?q=%s" +;; :keybinding "d") + +;; `C-x / d' is now bound to the new function +;; engine/search-duckduckgo'! Nifty. + +;;; License: + +;; This program is free software: you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; This program is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with this program. If not, see <http://www.gnu.org/licenses/>. + +;;; Code: +(eval-when-compile (require 'cl-macs)) + +(defcustom engine/keybinding-prefix "C-x /" + "The default engine-mode keybindings prefix." + :group 'engine-mode + :type 'string) + +(define-prefix-command 'engine-mode-prefixed-map) +(defvar engine-mode-prefixed-map) + +(defvar engine-mode-map + (let ((map (make-sparse-keymap))) + (define-key map (kbd engine/keybinding-prefix) engine-mode-prefixed-map) + map) + "Keymap for `engine-mode'.") + +;;;###autoload +(define-minor-mode engine-mode + "Minor mode for defining and querying search engines through Emacs. + +\\{engine-mode-map}" + :global t + :keymap engine-mode-map) + +(defun engine/set-keymap-prefix (prefix-key) + "Bind the engine-mode keymap to a new prefix. +For example, to use \"C-c s\" instead of the default \"C-x /\": + +\(engine/set-keymap-prefix (kbd \"C-c s\"))" + (define-key engine-mode-map (kbd engine/keybinding-prefix) nil) + (define-key engine-mode-map prefix-key engine-mode-prefixed-map)) + +(defcustom engine/browser-function nil + "The default browser function used when opening a URL in an engine. +Defaults to `nil' which means to go with `browse-url-browser-function'." + :group 'engine-mode + :type 'symbol) + +(defun engine/search-prompt (engine-name default-word) + (if (string= default-word "") + (format "Search %s: " (capitalize engine-name)) + (format "Search %s (%s): " (capitalize engine-name) default-word))) + +(defun engine/prompted-search-term (engine-name) + (let ((current-word (or (thing-at-point 'symbol) ""))) + (read-string (engine/search-prompt engine-name current-word) + nil nil current-word))) + +(defun engine/get-query (engine-name) + "Return the selected region (if any) or prompt the user for a query." + (if (use-region-p) + (buffer-substring (region-beginning) (region-end)) + (engine/prompted-search-term engine-name))) + +(defun engine/execute-search (search-engine-url browser-function search-term) + "Display the results of the query." + (interactive) + (let ((browse-url-browser-function (or browser-function + browse-url-browser-function))) + (browse-url + (format-spec search-engine-url + (format-spec-make ?s (url-hexify-string search-term)))))) + +(defun engine/function-name (engine-name) + (intern (concat "engine/search-" (downcase (symbol-name engine-name))))) + +(defun engine/docstring (engine-name) + (concat "Search " + (capitalize (symbol-name engine-name)) + " for the selected text. Prompt for input if none is selected.")) + +(defun engine/bind-key (engine-name keybinding) + (when keybinding + `(define-key engine-mode-prefixed-map ,keybinding + (quote ,(engine/function-name engine-name))))) + +;;;###autoload +(cl-defmacro defengine (engine-name search-engine-url &key keybinding docstring (browser 'engine/browser-function) (term-transformation-hook 'identity)) + "Define a custom search engine. + +`engine-name' is a symbol naming the engine. +`search-engine-url' is the url to be queried, with a \"%s\" +standing in for the search term. +The optional keyword argument `docstring' assigns a docstring to +the generated function. A reasonably sensible docstring will be +generated if a custom one isn't provided. +The optional keyword argument `browser` assigns the browser +function to be used when opening the URL. +The optional keyword argument `term-transformation-hook' is a +function that will be applied to the search term before it's +substituted into `search-engine-url'. For example, if we wanted +to always upcase our search terms, we might use: + +\(defengine duckduckgo + \"https://duckduckgo.com/?q=%s\" + :term-transformation-hook 'upcase) + +In this case, searching for \"foobar\" will hit the url +\"https://duckduckgo.com/?q=FOOBAR\". + +The optional keyword argument `keybinding' is a string describing +the key to bind the new function. + +Keybindings are in the `engine-mode-map', so they're prefixed. + +For example, to search Wikipedia, use: + + (defengine wikipedia + \"http://www.wikipedia.org/search-redirect.php?language=en&go=Go&search=%s\" + :keybinding \"w\" + :docstring \"Search Wikipedia!\") + +Hitting \"C-x / w\" will be bound to the newly-defined +`engine/search-wikipedia' function." + + (cl-assert (symbolp engine-name)) + `(prog1 + (defun ,(engine/function-name engine-name) (search-term) + ,(or docstring (engine/docstring engine-name)) + (interactive + (list (engine/get-query ,(symbol-name engine-name)))) + (engine/execute-search ,search-engine-url ,browser (,term-transformation-hook search-term))) + ,(engine/bind-key engine-name keybinding))) + +(provide 'engine-mode) +;;; engine-mode.el ends here |