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;; -*- lexical-binding: t; -*-
(defvar hmm-search-engines nil "hmm web search engines.")
(defvar hmm-web-browsers nil "hmm web browers.")
(defvar hmm-query-handlers nil "hmm query handlers.")
(defvar hmm-favourite-commands nil)
(defmacro hmm-define-web-search-engine (engine browser)
(let* ((engine-name (plist-get engine :name))
(browser-name (plist-get browser :name))
(function-name (intern
(format "hmm-search-%s-%s" engine-name browser-name))))
`(progn
(defun ,function-name (query)
,(format "Search %s in %s." engine-name browser-name)
(interactive ,(format "sSearch %s in %s for: " engine-name browser-name))
(,(plist-get browser :command)
(format ,(plist-get engine :format) query)))
(hmm-add-to-favourite-commands ',function-name))))
(defun hmm-add-to-favourite-commands (command)
(add-to-list 'hmm-favourite-commands command))
(defun hmm-search-region (from to)
(interactive "r")
(unless (region-active-p) (error "Region not active."))
(let* ((query (buffer-substring from to)))
(hmm-search-internal query)))
(defun hmm-search (query)
(interactive "sQuery: ")
(hmm-search-internal query))
(defun hmm-search-internal (query)
(let ((selected (completing-read
(format "Search %s using: " query)
(mapcar
(lambda (command)
(format "%s (%s)" command
(if (documentation command)
(car
(split-string
(documentation command)
"\n"))
"Undocumented")))
hmm-favourite-commands))))
(funcall (intern (car (split-string selected " ("))) query)))
(dolist (engine hmm-web-search-engines)
(dolist (browser hmm-web-browsers)
(eval `(hmm-define-web-search-engine ,engine ,browser))))
(mapc 'hmm-add-to-favourite-commands hmm-query-handlers)
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