code.delx.au - gnu-emacs-elpa/blob - chess-scid.el

   1 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
   2 ;;
   3 ;; A game database that uses SCID for storage/retrieval
   4 ;;
   5 ;; The advantage is that it's much faster than PGN, and far, far more
   6 ;; compact.
   7 ;;
   8
   9 (defvar chess-scid-process)
  10
  11 (make-variable-buffer-local 'chess-scid-process)
  12
  13 (defsubst chess-scid-send (string)
  14   (process-send-string chess-scid-process (concat string "\n")))
  15
  16 (defun chess-scid-get-result (command)
  17   (let ((here (point-max)))
  18     (chess-scid-send command)
  19     (accept-process-output chess-scid-process)
  20     (goto-char (point-max))
  21     (while (memq (char-before) '(?  ?\t ?\n ?\r ?\%))
  22       (backward-char 1))
  23     (buffer-substring here (point))))
  24
  25 (defun chess-scid-handler (event &rest args)
  26   (cond
  27    ((eq event 'open)
  28     (if (file-readable-p (concat (car args) ".sg3"))
  29         (let* ((buffer (generate-new-buffer " *chess-scid*"))
  30                (proc (start-process "*chess-scid*" buffer
  31                                     (executable-find "tcscid"))))
  32           (if (and proc (eq (process-status proc) 'run))
  33               (with-current-buffer buffer
  34                 (accept-process-output proc)
  35                 (setq chess-scid-process proc)
  36                 (if (= 1 (string-to-number
  37                           (chess-scid-get-result
  38                            (format "sc_base open %s"
  39                                    (expand-file-name (car args))))))
  40                     buffer
  41                   (kill-process proc)
  42                   (kill-buffer buffer)
  43                   nil))
  44             (kill-buffer buffer)
  45             nil))))
  46
  47    ((eq event 'close)
  48     (chess-scid-send "sc_base close\nexit")
  49     (while (eq (process-status chess-scid-process) 'run)
  50       (sit-for 0 250)))
  51
  52    ((eq event 'read-only-p)
  53     (if (zerop (string-to-number (chess-scid-get-result "sc_base isReadOnly")))
  54         nil
  55       t))
  56
  57    ((eq event 'filename)
  58     (chess-scid-get-result "sc_base filename"))
  59
  60    ((eq event 'count)
  61     (string-to-number (chess-scid-get-result "sc_base numGames")))
  62
  63    ((eq event 'read)
  64     (let ((here (point-max)) game)
  65       (process-send-string chess-scid-process
  66                            (format "sc_game load %d\nsc_game pgn\n"
  67                                    (car args)))
  68       (accept-process-output chess-scid-process)
  69       (goto-char here)
  70       (when (setq game (chess-pgn-to-game))
  71         (chess-game-set-data game 'database (current-buffer))
  72         (chess-game-set-data game 'database-index (car args))
  73         (chess-game-set-data game 'database-count (chess-scid-handler 'count))
  74         game)))
  75
  76    ((and (eq event 'query)
  77          (eq (car args) 'tree-search))
  78     (if (string=
  79          (chess-scid-get-result
  80           (format "sc_game import \"%s\""
  81                   (with-temp-buffer
  82                     (chess-pgn-insert-plies
  83                      (cadr args) 1 (chess-game-plies (cadr args)))
  84                     (insert " " (or (chess-game-tag (cadr args) "Result") "*"))
  85                     (buffer-string))))
  86          "PGN text imported with no errors or warnings.")
  87         (let ((here (point-max)))
  88           (chess-scid-send "sc_tree search")
  89           (accept-process-output chess-scid-process)
  90           (goto-char here)
  91           (let ((lines (list t)))
  92             (while
  93                 (re-search-forward
  94                  (concat "\\s-*\\([1-9][0-9]*\\):\\s-+\\([^ ]+\\)\\s-+"
  95                          "\\([0-9]+\\):\\s-*\\([0-9.]+\\)%\\s-+"
  96                          "\\([0-9.]+\\)%\\s-+\\([0-9]+\\|    \\)\\s-+"
  97                          "\\([0-9]+\\|    \\)\\s-+\\([0-9]+\\|    \\)\\s-+"
  98                          "\\([0-9.]+\\)%")
  99                  nil t)
 100               (let ((move (match-string 2))
 101                     (freq (string-to-number (match-string 3)))
 102                     (score (string-to-number (match-string 5)))
 103                     (avgelo (string-to-number (match-string 6)))
 104                     (perf (string-to-number (match-string 7)))
 105                     (avgyear (string-to-number (match-string 8)))
 106                     (draws (string-to-number (match-string 9))))
 107                 (nconc lines
 108                        (list
 109                         (append
 110                          (list move freq score draws)
 111                          (cond
 112                           ((and (zerop avgyear) (zerop avgelo) (zerop perf))
 113                            nil)
 114                           ((and (zerop avgelo) (zerop perf))
 115                            (list avgyear))
 116                           (t
 117                            (list
 118                             (unless (zerop avgyear) avgyear)
 119                             (unless (zerop avgelo) avgelo)
 120                             (unless (zerop perf) perf)))))))))
 121             (when (re-search-forward
 122                    (concat "TOTAL:\\s-+\\([0-9]+\\):100.0%\\s-+"
 123                            "\\([0-9.]+\\)%\\s-+\\([0-9]+\\|    \\)\\s-+"
 124                            "\\([0-9]+\\|    \\)\\s-+\\([0-9]+\\|    \\)\\s-+"
 125                            "\\([0-9.]+\\)%") nil t)
 126               (goto-char (point-max))
 127               (append
 128                (list (string-to-number (match-string 1))
 129                      (string-to-number (match-string 2))
 130                      (string-to-number (match-string 6)))
 131                (cdr lines)))))
 132       (error "Unable to import game")))
 133
 134    ((eq event 'write)
 135     (chess-scid-handler 'replace (car args) 0))
 136
 137    ((eq event 'replace)
 138     (unless (chess-scid-handler 'read-only-p)
 139       (let ((index (or (cadr args)
 140                        (chess-game-data (car args) 'database-index))))
 141         (chess-scid-send
 142          (format "sc_game import \"%s\""
 143                  (with-temp-buffer
 144                    (chess-pgn-insert-plies
 145                     (car args) 1 (chess-game-plies (car args)))
 146                    (insert (or (chess-game-tag (car args) "Result") "*"))
 147                    (buffer-string))))
 148         (dolist (tag (chess-game-tags (car args)))
 149           ;; jww (2002-05-01): how do I set extra tags?
 150           (unless (string= (car tag) "TimeControl")
 151             (chess-scid-send
 152              (concat "sc_game tags set "
 153                      (cond
 154                       ((string= (car tag) "Event")     "-event")
 155                       ((string= (car tag) "Site")      "-site")
 156                       ((string= (car tag) "Date")      "-date")
 157                       ((string= (car tag) "Round")     "-round")
 158                       ((string= (car tag) "White")     "-white")
 159                       ((string= (car tag) "WhiteElo")  "-whiteElo")
 160                       ((string= (car tag) "Black")     "-black")
 161                       ((string= (car tag) "BlackElo")  "-blackElo")
 162                       ((string= (car tag) "Result")    "-result")
 163                       ((string= (car tag) "ECO")       "-eco")
 164                       ((string= (car tag) "EventDate") "-eventdate")
 165                       ((string= (car tag) "Extra")     "-extra"))
 166                      " \"" (cdr tag) "\""))))
 167         (chess-scid-send (format "sc_game save %d" index)))))))
 168
 169 (provide 'chess-scid)
 170
 171 ;;; chess-scid.el ends here