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bug#5954: 23.1; ps-run-mode should derive from comint-mode


From: Markus Triska
Subject: bug#5954: 23.1; ps-run-mode should derive from comint-mode
Date: Thu, 15 Apr 2010 21:36:25 +0200

ps-run-mode should be derived from comint-mode instead of fundamental
mode to get input history etc. The following patch implements this:

2010-04-15  Markus Triska  <address@hidden>

        * progmodes/ps-mode.el: Require commint.
        (ps-run-mode-map): Adapt for comint-mode; omit "\r", [return]..
        (ps-mode-other-newline): Simplify.
        (ps-run-mode): Derive from comint-mode instead of
        fundamental-mode, yielding input history etc.
        (ps-run-start, ps-run-quit, ps-run-clear, ps-run-region)
        (ps-run-send-string): Adapt for comint-mode.
        (ps-run-newline): Remove now unneeded function.


diff --git a/ps-mode.el b/ps-mode.el
index 93a5592..e4469b0 100644
--- a/ps-mode.el
+++ b/ps-mode.el
@@ -39,6 +39,7 @@
 (defconst ps-mode-version "1.1h, 16 Jun 2005")
 (defconst ps-mode-maintainer-address "Peter Kleiweg <address@hidden>")
 
+(require 'comint)
 (require 'easymenu)
 
 ;; Define core `PostScript' group.
@@ -431,12 +432,11 @@ If nil, use `temporary-file-directory'."
 
 (unless ps-run-mode-map
   (setq ps-run-mode-map (make-sparse-keymap))
+  (set-keymap-parent ps-run-mode-map comint-mode-map)
   (define-key ps-run-mode-map "\C-c\C-q" 'ps-run-quit)
   (define-key ps-run-mode-map "\C-c\C-k" 'ps-run-kill)
   (define-key ps-run-mode-map "\C-c\C-e" 'ps-run-goto-error)
-  (define-key ps-run-mode-map [mouse-2] 'ps-run-mouse-goto-error)
-  (define-key ps-run-mode-map "\r" 'ps-run-newline)
-  (define-key ps-run-mode-map [return] 'ps-run-newline))
+  (define-key ps-run-mode-map [mouse-2] 'ps-run-mouse-goto-error))
 
 
 ;; Syntax table.
@@ -718,12 +718,9 @@ defines the beginning of a group. These tokens are:  {  [  
<<"
   (blink-matching-open))
 
 (defun ps-mode-other-newline ()
-  "Perform newline in `*ps run*' buffer."
+  "Perform newline in `*ps-run*' buffer."
   (interactive)
-  (let ((buf (current-buffer)))
-    (set-buffer "*ps run*")
-    (ps-run-newline)
-    (set-buffer buf)))
+  (ps-run-send-string ""))
 
 
 ;; Print PostScript.
@@ -980,7 +977,7 @@ plus the usually uncoded characters inserted on positions 1 
through 28."
 
 ;; Interactive PostScript interpreter.
 
-(define-derived-mode ps-run-mode fundamental-mode "Interactive PS"
+(define-derived-mode ps-run-mode comint-mode "Interactive PS"
   "Major mode in interactive PostScript window.
 This mode is invoked from `ps-mode' and should not be called directly.
 
@@ -1014,20 +1011,23 @@ This mode is invoked from `ps-mode' and should not be 
called directly.
       (setq init-file (ps-run-make-tmp-filename))
       (write-region (concat ps-run-init "\n") 0 init-file)
       (setq init-file (list init-file)))
-    (pop-to-buffer "*ps run*")
+    (pop-to-buffer "*ps-run*")
     (ps-run-mode)
     (when (process-status "ps-run")
       (delete-process "ps-run"))
     (erase-buffer)
     (setq command (append command init-file))
     (insert (mapconcat 'identity command " ") "\n")
-    (apply 'start-process "ps-run" "*ps run*" command)
+    (apply 'make-comint "ps-run" (car command) nil (cdr command))
+    (with-current-buffer "*ps-run*"
+      (use-local-map ps-run-mode-map)
+      (setq comint-prompt-regexp ps-run-prompt))
     (select-window oldwin)))
 
 (defun ps-run-quit ()
   "Quit interactive PostScript."
   (interactive)
-  (ps-run-send-string "quit" t)
+  (ps-run-send-string "quit")
   (ps-run-cleanup))
 
 (defun ps-run-kill ()
@@ -1039,9 +1039,9 @@ This mode is invoked from `ps-mode' and should not be 
called directly.
 (defun ps-run-clear ()
   "Clear/reset PostScript graphics."
   (interactive)
-  (ps-run-send-string "showpage" t)
+  (ps-run-send-string "showpage")
   (sit-for 1)
-  (ps-run-send-string "" t))
+  (ps-run-send-string ""))
 
 (defun ps-run-buffer ()
   "Send buffer to PostScript interpreter."
@@ -1056,7 +1056,7 @@ This mode is invoked from `ps-mode' and should not be 
called directly.
   (let ((f (ps-run-make-tmp-filename)))
     (set-marker ps-run-mark begin)
     (write-region begin end f)
-    (ps-run-send-string (format "(%s) run" f) t)))
+    (ps-run-send-string (format "(%s) run" f))))
 
 (defun ps-run-boundingbox ()
   "View BoundingBox."
@@ -1104,17 +1104,15 @@ grestore
 " x1 y1 x2 y1 x2 y2 x1 y2)
      0
      f)
-    (ps-run-send-string (format "(%s) run" f) t)
+    (ps-run-send-string (format "(%s) run" f))
     (set-buffer buf)))
 
-(defun ps-run-send-string (string &optional echo)
+(defun ps-run-send-string (string)
   (let ((oldwin (selected-window)))
-    (pop-to-buffer "*ps run*")
-    (goto-char (point-max))
-    (when echo
-      (insert string "\n"))
-    (set-marker (process-mark (get-process "ps-run")) (point))
-    (process-send-string "ps-run" (concat string "\n"))
+    (pop-to-buffer "*ps-run*")
+    (comint-goto-process-mark)
+    (insert string)
+    (comint-send-input)
     (select-window oldwin)))
 
 (defun ps-run-make-tmp-filename ()
@@ -1140,18 +1138,6 @@ grestore
   (mouse-set-point event)
   (ps-run-goto-error))
 
-(defun ps-run-newline ()
-  "Process newline in PostScript interpreter window."
-  (interactive)
-  (end-of-line)
-  (insert "\n")
-  (forward-line -1)
-  (when (looking-at ps-run-prompt)
-    (goto-char (match-end 0)))
-  (looking-at ".*")
-  (goto-char (1+ (match-end 0)))
-  (ps-run-send-string (buffer-substring (match-beginning 0) (match-end 0))))
-
 (defun ps-run-goto-error ()
   "Jump to buffer position read as integer at point.
 Use line numbers if `ps-run-error-line-numbers' is not nil"


In GNU Emacs 23.1.1 (i386-apple-darwin9.8.0, GTK+ Version 2.14.7)
 of 2009-09-05 on mt-imac.local







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