tm 6.76.2.

[elisp/tm.git] / tinyrich.el

diff --git a/tinyrich.el b/tinyrich.el
index 2253d64..edf4056 100644 (file)
--- a/tinyrich.el
+++ b/tinyrich.el
@@ -1,5 +1,5 @@
 ;;;
-;;; $Id: tinyrich.el,v 1.1 1995/07/05 16:21:36 morioka Exp $
+;;; $Id: tinyrich.el,v 2.0 1995/07/17 22:31:32 morioka Exp $
 ;;;
 ;;;          by MORIOKA Tomohiko  <morioka@jaist.ac.jp>
 ;;; modified by YAMATE Keiichirou <ics9118@sem1.info.osaka-cu.ac.jp>
@@ -90,4 +90,98 @@
          )
        ))))
 
+
+;;; @ text/richtext <-> text/enriched converter
+;;;
+
+(defun richtext-to-enriched-region (beg end)
+  "Convert the region of text/richtext style to text/enriched style."
+  (save-excursion
+    (save-restriction
+      (narrow-to-region beg end)
+      (goto-char (point-min))
+      (let (b e i)
+       (while (re-search-forward "[ \t]*<comment>" nil t)
+         (setq b (match-beginning 0))
+         (delete-region b
+                        (if (re-search-forward "</comment>[ \t]*" nil t)
+                            (match-end 0)
+                          (point-max)
+                          ))
+         )
+       (goto-char (point-min))
+       (while (re-search-forward "\n\n+" nil t)
+         (replace-match "\n")
+         )
+       (goto-char (point-min))
+       (while (re-search-forward "[ \t\n]*<nl>[ \t\n]*" nil t)
+         (setq b (match-beginning 0))
+         (setq e (match-end 0))
+         (setq i 1)
+         (while (looking-at "[ \t\n]*<nl>[ \t\n]*")
+           (setq e (match-end 0))
+           (setq i (1+ i))
+           (goto-char e)
+           )
+         (delete-region b e)
+         (while (>= i 0)
+           (insert "\n")
+           (setq i (1- i))
+           ))
+       (goto-char (point-min))
+       (while (search-forward "<lt>" nil t)
+         (replace-match "<<")
+         )
+       ))))
+
+(defun enriched-to-richtext-region (beg end)
+  "Convert the region of text/enriched style to text/richtext style."
+  (save-excursion
+    (save-restriction
+      (goto-char beg)
+      (and (search-forward "text/enriched")
+          (replace-match "text/richtext"))
+      (search-forward "\n\n")
+      (narrow-to-region (match-end 0) end)
+      (let (str n)
+       (goto-char (point-min))
+       (while (re-search-forward "\n\n+" nil t)
+         (setq str (buffer-substring (match-beginning 0)
+                                     (match-end 0)))
+         (setq n (1- (length str)))
+         (setq str "")
+         (while (> n 0)
+           (setq str (concat str "<nl>\n"))
+           (setq n (1- n))
+           )
+         (replace-match str)
+         )
+       (goto-char (point-min))
+       (while (search-forward "<<" nil t)
+         (replace-match "<lt>")
+         )
+       ))))
+
+
+;;; @ encoder and decoder
+;;;
+
+(defun richtext-decode (beg end)
+  (save-restriction
+    (narrow-to-region beg end)
+    (richtext-to-enriched-region beg (point-max))
+    (enriched-decode beg (point-max))
+    ))
+
+;; (defun richtext-encode (beg end)
+;;   (save-restriction
+;;     (narrow-to-region beg end)
+;;     (enriched-encode beg (point-max))
+;;     (enriched-to-richtext-region beg (point-max))
+;;     ))
+
+
+;;; @ end
+;;;
+
 (provide 'tinyrich)