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(defvar *thanos/search-engines*
(list
'("google" "https://google.com/search?q=~a")
'("aa" "https://annas-archive.org/search?q=~a")
'("v" "https://yewtu.be/search?q=~a")
'("aw" "https://wiki.archlinux.org/index.php?search=~a")
'("duck" "https://duckduckgo.com/?q=~a"))
"List of search engines.
Last entry is the default.")
(defun direct-url-p (url)
"Checks if `url` is a direct URL with specific extensions, returning
t if so and nil otherwise. The URL must not contain spaces."
(not (null (or (and (null (cl-ppcre:scan "\\s" url))
(or (cl-ppcre:scan "^(https?://)?.*\\.org(\\/.*)?$" url)
(cl-ppcre:scan "^(https?://)?.*\\.com(\\/.*)?$" url)
(cl-ppcre:scan "^(https?://)?.*\\.net(\\/.*)?$" url)
(cl-ppcre:scan "^(https?://)?.*\\.gr(\\/.*)?$" url)
(cl-ppcre:scan "^(https?://)?.*\\.co(\\/.*)?$" url)
(cl-ppcre:scan "^(https?://)?.*\\.engineer(\\/.*)?$" url)))))))
(defun handle-url (query func)
"Process `query` as a URL or search query.
Applies `func` to the query`.
Requires the variable `*thanos/search-engines*` for search queries."
(cond
((or (str:starts-with-p "localhost" query))
(funcall func (str:concat "http://" query)))
((direct-url-p query)
(funcall func (str:concat "https://" query)))
((str:starts-with-p "http" query)
(funcall func query))
((let ((split-result (str:split #\Space query)))
(find (first split-result) *thanos/search-engines* :key #'first :test #'string=))
(let* ((engine-tag (subseq query 0 (position #\Space query)))
(query (subseq query (+ 1 (position #\Space query))))
(engine (find engine-tag *thanos/search-engines* :key #'first :test #'string=))
(search-url (second engine)))
(funcall func (cl-ppcre:regex-replace "~a" search-url (quri:url-encode query)))))
(t
(let* ((engine (first (last *thanos/search-engines*)))
(search-url (second engine)))
(funcall func (cl-ppcre:regex-replace "~a" search-url (quri:url-encode query)))))))
(defun thanos/make-buffer-focus-url (url)
(make-buffer-focus :url url))
(define-command-global thanos/set-url ()
(let* ((prompt-result (first
(prompt
:prompt "Search"
:sources (list (make-instance 'prompter:raw-source))))))
(handle-url prompt-result 'buffer-load)))
(define-command-global thanos/set-url-new-buffer ()
(let* ((prompt-result (first
(prompt
:prompt "Search [New Buffer]"
:sources (list (make-instance 'prompter:raw-source))))))
(handle-url prompt-result 'thanos/make-buffer-focus-url)))
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