my-emacs-d/elpa/go-20160430.1739/back-ends/sgf2el.el
2016-09-15 13:54:46 +02:00

189 lines
6.9 KiB
EmacsLisp
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

;;; sgf2el.el --- conversion between sgf and emacs-lisp
;; Copyright (C) 2012 Free Software Foundation, Inc.
;; Author: Eric Schulte <schulte.eric@gmail.com>
;; Created: 2012-05-15
;; Version: 0.1
;; Keywords: game go sgf
;; This software is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This software is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Code:
(require 'go-util)
(defvar prop-re
"\\([[:alpha:]]+\\)\\(\\(\\[\\]\\|[[:space:]]*\\[[^\000]*?[^\\]\\]\\)+\\)")
(defvar prop-val-re
"\\(\\[\\]\\|\\[\\([^\000]*?[^\\]\\)\\]\\)")
(defvar sgf2el-special-properties nil
"A-list of properties and functions to specially convert their values.")
(defun make-keyword (string)
(intern (concat ":" (upcase string))))
(defun sgf2el-convert-prop-key (key)
"Convert a keyerty name to elisp."
(save-match-data (make-keyword key)))
(defun sgf2el-read-prop (val)
(when (and (stringp val) (not (equal val "")))
(or (go-number-p val) val)))
(defun sgf2el-convert-prop-vals (key vals)
"Convert a property value to elisp."
(save-match-data
(let ((func (cdr (assoc key sgf2el-special-properties))))
(if func
(funcall func vals)
(delete nil (mapcar #'sgf2el-read-prop vals))))))
(defun sgf2el-all-matches (str re &optional sub-exp)
(save-match-data
(with-temp-buffer
(insert str)
(goto-char (point-min))
(loop while (re-search-forward re nil t)
collect (go-clean-text-properties
(match-string (or sub-exp 0)))))))
(defun sgf2el-region (&optional start end)
(interactive "r")
(let ((start (copy-marker (or start (point-min))))
(end (copy-marker (or end (point-max))))
(re (format "\\(%s\\|%s\\)" prop-re "\\(([[:space:]]*\\)*\\(;\\)"))
last-node)
(save-excursion (goto-char start)
(while (re-search-forward re end t)
(let ((start (marker-position start)))
(message "parsing %.2f%%"
(* 100 (/ (float (- (point) start))
(float (- (marker-position end) start))))))
(if (string= (match-string 6) ";")
(progn
(replace-match "(" nil nil nil 6)
(when last-node
(save-excursion (goto-char (match-beginning 0)) (insert ")")))
(setq last-node t))
(let* ((key (sgf2el-convert-prop-key (match-string 2)))
(val (sgf2el-convert-prop-vals key
(sgf2el-all-matches (match-string 3) prop-val-re 2)))
(rep (format "%S " (cons key (if (= 1 (length val))
(car val) val)))))
(replace-match rep nil 'literal))))
(when last-node (insert ")")))
(message "parsing DONE")))
(defun sgf2el-normalize (&optional buffer)
"Cleanup the formatting of the elisp sgf data in BUFFER."
(interactive)
(let ((buffer (or buffer (current-buffer))) temp)
(sgf2el-set-to-var temp buffer)
(with-current-buffer buffer
(save-excursion
(delete-region (point-min) (point-max))
(insert (pp temp))))
temp))
(defun sgf2el (&optional sgf-buffer)
"Convert the content of SGF-BUFFER to emacs-lisp in a new buffer."
(interactive)
(let* ((sgf-buffer (or sgf-buffer (current-buffer)))
(buffer (generate-new-buffer (concat (buffer-name sgf-buffer) "-el")))
(sgf-str (with-current-buffer sgf-buffer (buffer-string))))
(with-current-buffer buffer
(insert sgf-str)
(goto-char (point-min))
(sgf2el-region)
(emacs-lisp-mode))
(pop-to-buffer buffer)))
(defun sgf2el-read (&optional buf)
(with-current-buffer (or buf (current-buffer))
(goto-char (point-min))
(read (current-buffer))))
(defun sgf2el-buffer-to-el (&optional bufffer)
"Convert the sgf contents of BUFFER to emacs lisp."
(interactive "b")
(with-current-buffer (or bufffer (current-buffer))
(sgf2el-region (point-min) (point-max))
(sgf2el-read)))
(defun sgf2el-str-to-el (str)
"Convert a string of sgf into the equivalent Emacs Lisp."
(interactive)
(with-temp-buffer (insert str) (sgf2el-buffer-to-el)))
(defun sgf2el-file-to-el (file)
"Convert the sgf contents of FILE to emacs lisp."
(interactive "f")
(with-temp-buffer
(insert-file-contents-literally file)
(sgf2el-buffer-to-el)))
;;; Specific property converters
(defun process-date (date-args)
(save-match-data (parse-time-string
(if (> 1 (length date-args))
(mapconcat #'number-to-string date-args " ")
(car date-args)))))
(add-to-list 'sgf2el-special-properties (cons :DT #'process-date))
(defun process-position (position-string)
(cl-flet ((char-to-num (char)
(cond
((or (< char ?A) (< ?z char))
(error "sgf: invalid char %s" char))
((< char ?a) (+ 26 (- char ?A)))
(t (- char ?a)))))
(cons (char-to-num (aref position-string 0))
(char-to-num (aref position-string 1)))))
(defun process-move (move-args)
(list (cons :pos (process-position (car move-args)))))
(add-to-list 'sgf2el-special-properties (cons :B #'process-move))
(add-to-list 'sgf2el-special-properties (cons :W #'process-move))
(defun process-label (label-args)
(let ((res (mapcar (lambda (l-arg)
(if (string-match "\\([[:alpha:]]+\\):\\(.*\\)" l-arg)
(list
(cons :label (match-string 2 l-arg))
(cons :pos (process-position
(match-string 1 l-arg))))
(error "sgf: malformed label %S" l-arg)))
label-args)))
(if (= 1 (length label-args)) (list res) res)))
(add-to-list 'sgf2el-special-properties (cons :LB #'process-label))
(add-to-list 'sgf2el-special-properties (cons :LW #'process-label))
(defun process-comment (comments)
(let ((replacements '(("\\(" . "(")
("\\)" . ")")
("\\[" . "[")
("\\]" . "]"))))
(mapcar (lambda (comment)
(dolist (pair replacements comment)
(setq comment (replace-regexp-in-string
(regexp-quote (car pair)) (cdr pair) comment))))
comments)))
(add-to-list 'sgf2el-special-properties (cons :C #'process-comment))
(provide 'sgf2el)
;;; sgf2el.el ends here