sacha chua living an awesome life

This extracts all kanji in the buffer and converts them to the format
expected by flashcard.el.

(defun sacha/kanji/get-ordered-kanji-list ()
  "Return a list of characters in the buffer."
  (goto-char (point-min))
  (let (kanji-list)
    (while (not (eobp))
      (let ((c (char-after (point))))
        (when (>= c ?亜) (add-to-list 'kanji-list c)))
      (forward-char 1))
    kanji-list))

(defun sacha/kanji/to-flashcard-j2e (&optional list)
  "Return a Japanese-English flashcard set.
If LIST is non-nil, use that instead of the current buffer."
  (interactive (list (sacha/kanji/get-ordered-kanji-list)))
  (unless list (setq list (sacha/kanji/get-ordered-kanji-list)))
  (let ((result
         (with-current-buffer (find-file-noselect "/usr/share/edict/kanjidic")
           (mapconcat
            (lambda (kanji)
              (goto-char (point-min))
              (when (re-search-forward (format "^%c.*?{\\(.*\\)}" kanji) nil t)
                (format "%c : %s\n"
                        kanji
                        (replace-regexp-in-string "}\\s-+{" "," (match-string 1)))))
            list
            ""))))
    (if (interactive-p) (kill-new result) result)))

(defun sacha/flashcard-method-leitner-check-answer (card answer)
  "Check answer for correctness. Allow multiple correct answers and provide feedback."
  (if (member answer (split-string (flashcard-card-answer card) ","))
      (progn
        (flashcard-insert "Correct! Answer is:\n"
                          (propertize (flashcard-card-answer card)
                                      'face 'flashcard-answer-face
                                      'rear-nonsticky t)
                          "\n"
                          "\n")
        t)
    (flashcard-insert "The correct answer is:\n"
                      (propertize (flashcard-card-answer card)
                                  'face 'flashcard-answer-face
                                  'rear-nonsticky t)
                      "\n"
                      "\n")
    (y-or-n-p "Was your answer correct? ")))

(setq flashcard-method-check-answer-function 'sacha/flashcard-method-leitner-check-answer)
(add-to-list 'auto-mode-alist '("\\.deck\\'" . flashcard-mode))
(add-hook 'flashcard-mode-hook 'flashcard-add-scroll-to-bottom)
(add-hook 'flashcard-positive-feedback-functions 'flashcard-feedback-highlight-answer)
(add-hook 'flashcard-positive-feedback-functions 'flashcard-feedback-congratulate)
(add-hook 'flashcard-positive-feedback-functions 'flashcard-method-leitner-positive-feedback)

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