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gimme-tagedit.el
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gimme-tagedit.el
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(require 'ecoli)
(defvar gimme-tagedit-buffer-name "GIMME - Tagedit")
(defvar gimme-tagedit-largecol-width 60)
(defvar gimme-tagedit-smallcol-width 10)
(defvar gimme-tagedit-tags '(artist album title genre url))
(defvar gimme-tagedit-last-used nil)
(defvar gimme-tagedit-map
(let ((map (ecoli-gen-basic-map)))
(define-key map (kbd "j") 'gimme-tagedit-next)
(define-key map (kbd "k") 'gimme-tagedit-previous)
(define-key map (kbd "l") 'gimme-tagedit-goto-next-field)
(define-key map (kbd "h") 'gimme-tagedit-goto-prev-field)
(define-key map (kbd "1") 'gimme-tagedit-show-1)
(define-key map (kbd "2") 'gimme-tagedit-show-2)
(define-key map (kbd "3") 'gimme-tagedit-show-3)
(define-key map (kbd "4") 'gimme-tagedit-show-4)
(define-key map (kbd "5") 'gimme-tagedit-show-5)
(define-key map (kbd "s") 'gimme-tagedit-scan)
(define-key map (kbd "S") 'gimme-tagedit-scan-range)
(define-key map (kbd "TAB") 'gimme-tagedit-goto-next-field)
(define-key map (kbd "<backtab>") 'gimme-tagedit-goto-prev-field)
(define-key map (kbd "<return>") 'gimme-tagedit-set-current-field)
(define-key map (kbd "S-<return>") 'gimme-tagedit-set-current-field-to-last)
map))
(defun gimme-tagedit-gen-format-lists ()
"It's complicated to explain. Try it on IELM!"
(let* ((fancy (->> gimme-tagedit-tags (mapcar (lambda (x) (->> x symbol-name (format "%%%s") intern)))))
(format-string (->> fancy (mapcar (lambda (x) "%s ")) (apply 'concat))))
(loop for i from 0 upto (1- (length fancy)) collecting
`(apply #'propertize
(format "%s %s %s %s %s"
,@(loop for j from 0 upto (1- (length fancy)) if (= i j) collect
`(propertize (string-expanded ,(nth i fancy) gimme-tagedit-largecol-width)
'font-lock-face `(:foreground ,(color-for ,(nth i fancy))))
if (not (= i j)) collect
`(propertize (string-expanded ,(nth j fancy) gimme-tagedit-smallcol-width)
'font-lock-face `(:foreground ,(color-for ,(nth j fancy))))))
(plist-del plist 'font-lock-face)))))
(defun gimme-update-header ()
(let ((header (funcall ecoli-format-function '(artist "Artist" album "Album" title "Title" genre "Genre" url "URL"))))
(goto-char (point-min))
(when ecoli-min (delete-region (point-min) ecoli-min))
(insert header) (insert ecoli-separator)
(insert (make-string (length header) ?-)) (insert ecoli-separator)))
(defun gimme-tagedit-mode ()
(let ((buffer (current-buffer)))
(gimme-update-header)
(setq-local ecoli-min (point))
(use-local-map gimme-tagedit-map)
(dolist (datum data) (ecoli-append buffer datum))))
(defun gimme-tagedit ()
(interactive)
(let* ((plists xoxotinha ;(ecoli-plists-on-region)
)
(plists (mapi1000 (lambda (i x) (plist-put x 'pos i)) plists))
(plist `(buffer-name ,gimme-tagedit-buffer-name data ,plists
ecoli-formats ,(gimme-tagedit-gen-format-lists)
ecoli-before-update-function gimme-update-header))
(setup-plist `(ecoli-separator "\n"
ecoli-format-function gimme-string))
(function #'gimme-tagedit-mode)
(buffer (ecoli-gen-buffer plist setup-plist function)))))
(defun gimme-tagedit-fields-position ()
(let* ((both (->> ecoli-formats caddar cddr (mapcar (lambda (x) (-> x cdadr)))
(mapcar (lambda (x) (list (car x) (eval (cadr x))))) transpose))
(pos (cadr both)) (names (mapcar (lambda (x) (-> x symbol-name (substring 1) intern)) (car both))))
(->> (loop for i from 0 upto (1- (length pos)) collecting
(loop for j from 0 upto i summing (nth j pos)))
butlast (map 'list #'+ '(1 2 3 4 5)) (cons 0) (list names))))
(defun gimme-tagedit-show-1 () (interactive) (gimme-tagedit-show-field 0))
(defun gimme-tagedit-show-2 () (interactive) (gimme-tagedit-show-field 1))
(defun gimme-tagedit-show-3 () (interactive) (gimme-tagedit-show-field 2))
(defun gimme-tagedit-show-4 () (interactive) (gimme-tagedit-show-field 3))
(defun gimme-tagedit-show-5 () (interactive) (gimme-tagedit-show-field 4))
(defun gimme-tagedit-show-field (goal)
(interactive)
(let* ((fields (cadr (gimme-tagedit-fields-position))) (len (length fields))
(delta (map 'list #'- (cdr fields) (butlast fields)))
(min (apply #'min delta))
(curr (loop for i in delta and j = 0 then (1+ j)
if (> i min) return j
finally return (length delta)))
(pos (- (point) (line-beginning-position) -1))
(goal♥ (-> goal (- 1) (+ len) (mod len))))
(loop for i = curr then (mod (1+ i) len)
while (not (= i goal♥))
doing (setq-local ecoli-formats (append (cdr ecoli-formats) (list (car ecoli-formats))))
finally do (ecoli-toggle-view))
(gimme-tagedit-goto-field goal)))
(defun gimme-tagedit-goto-next-field ()
(interactive)
(let ((poss (cadr (gimme-tagedit-fields-position)))
(pos (- (point) (line-beginning-position))))
(goto-char (loop for i in poss if (> i pos) return (+ i (line-beginning-position))
finally return (1+ (line-end-position))))
(when (= (point-max) (point)) (goto-char ecoli-min))))
(defun gimme-tagedit-goto-prev-field ()
(interactive)
(when (>= (1+ ecoli-min) (point)) (goto-char (point-max)))
(let ((poss (-> (gimme-tagedit-fields-position) cadr reverse))
(pos (- (point) (line-beginning-position))))
(goto-char (loop for i in poss if (< i pos) return (+ i (line-beginning-position))
finally return (- (line-beginning-position) (- (car poss) (cadr poss)))))))
(defun gimme-tagedit-goto-field (n)
(interactive)
(let* ((pos (line-beginning-position)))
(->> (gimme-tagedit-fields-position) cadr (mapcar (lambda (x) (+ x pos)))
(nth n) goto-char)))
(defun gimme-tagedit-get-property (property)
(get-text-property (point) property))
(defun gimme-tagedit-current-property (&optional fields)
(let ((both (mapcar #'reverse (or fields (gimme-tagedit-fields-position))))
(pos (- (point) (line-beginning-position))))
(loop for i in (cadr both) and j = 0 then (1+ j)
when (>= pos i) return (nth j (car both)))))
(defun gimme-tagedit-current-position (&optional fields)
(let ((both (mapcar #'reverse (or fields (gimme-tagedit-fields-position))))
(pos (- (point) (line-beginning-position))))
(loop for i in (cadr both) and j = 0 then (1+ j)
when (>= pos i) return (-> both cadr length (- j) (- 1)))))
(defun message-safe (string)
(message (replace-regexp-in-string "%" "%%" string)))
(defun gimme-tagedit-set-current-field (&optional new)
(interactive)
(when (get-text-property (point) 'pos)
(let* ((pos (gimme-tagedit-current-position))
(field (gimme-tagedit-current-property))
(value (gimme-tagedit-get-property field))
(new (or new (read-from-minibuffer (format "%s -> " field) value))))
(-> (point) text-properties-at (plist-put field new) ecoli-update-item)
(setq-local gimme-tagedit-last-used new)
(gimme-tagedit-goto-field pos))))
(defun gimme-tagedit-set-current-field-to-last ()
(interactive)
(gimme-tagedit-set-current-field gimme-tagedit-last-used))
(defun gimme-tagedit-previous ()
(interactive)
(previous-line))
(defun gimme-tagedit-next ()
(interactive)
(next-line))
(defvar gimme-tagedit-scan-map
(let ((map minibuffer-local-map))
(define-key map (kbd "TAB") 'gimme-tagedit-recalculate-tags)
map)
"Tagedit's scan keymap")
(defun gimme-tagedit-recalculate-tags ()
"Recalculates the tags, given the pattern in the minibuffer."
(interactive)
(let* ((regexp (minibuffer-contents))
(url (with-current-buffer gimme-tagedit-buffer-name url))
(plist (gimme-tagedit-scan-regexp url regexp))
(formatted-string
(loop for x = plist then (cddr x) while x
collecting (format "$%s = \"%s\"; " (car x) (cadr x))
into strings and finally return (apply #'concat strings))))
(message-safe formatted-string)))
(defun gimme-tagedit-scan-regexp (string regexp)
"Scans all fields, given the regexp"
(let* ((new-regexp (replace-regexp-in-string "$[a-zA-Z]\+" "\\\\\(\.\*\\\\\)"
regexp))
(symbols (mapcar (lambda (x) (intern (substring (car x) 1)))
(regexp-all-matches regexp "\\($[a-zA-Z]\+\\)")))
(matches (car (regexp-all-matches string new-regexp))))
(loop for i = 0 then (1+ i) while (nth i matches)
collecting (list (nth i symbols) (nth i matches)) into alist
and finally return (mapcan (lambda (x) x) alist))))
(defun gimme-tagedit-scan (&optional try-previous)
"Scans fields from the URL."
(interactive)
(let* ((prev (text-properties-at (point)))
(url (decode-percent-encoding (plist-get prev 'url)))
(_ (setq-local url url))
(regexp (read-from-minibuffer (format "%s> " url) "" gimme-tagedit-scan-map))
(new (gimme-tagedit-scan-regexp url regexp)))
(ecoli-update-item (plist-add new prev))))
(defun gimme-tagedit-scan-range (&optional try-previous)
"Scans fields from the URL."
(interactive)
(let* ((prev (text-properties-at (point)))
(url (decode-percent-encoding (plist-get prev 'url)))
(_ (setq-local url url))
(regexp (read-from-minibuffer (format "%s> " url) "" gimme-tagedit-scan-map))
(new (gimme-tagedit-scan-regexp url regexp)))
(loop for p in (ecoli-plists-on-region)
doing (-> p (plist-get 'url) (gimme-tagedit-scan-regexp regexp)
(plist-add p) ecoli-update-item))))
(provide 'gimme-tagedit)