2005-09-20 Michael Kifer <kifer@cs.stonybrook.edu>

	* ediff-ptch.el (ediff-file-name-sans-prefix): treat nil as an empty
	string.
	(ediff-fixup-patch-map): better heuristic for intuiting the file names
	to patch.
	(ediff-prompt-for-patch-file): more intuitive prompt.

	* ediff-util.el: use insert-buffer-substring.

	* ediff-vers.el (cvs-run-ediff-on-file-descriptor): bug fix.

	* viper-cmd.el (viper-change-state): don't move over the field
	boundaries in the minibuffer.
	(viper-set-minibuffer-style): add viper-minibuffer-post-command-hook.
	(viper-minibuffer-post-command-hook): new hook.
	(viper-line): don't move cursor at bolp.

	* viper-ex.el (ex-pwd, viper-info-on-file): fixed message

	* viper-init.el: add alias to make-variable-buffer-local to avoid
	compiler warnings.

	* viper-macs.el (ex-map): better messages.

	* viper-utils.el (viper-beginning-of-field): new function.

	* viper.el: replace make-variable-buffer-local with
	viper-make-variable-buffer-local everywhere, to avoid warnings.

5 files changed, 29 insertions, 13 deletions

diff --git a/lisp/emulation/viper-cmd.el b/lisp/emulation/viper-cmd.el
index 99a130e7f1d..7d2e10a8f31 100644
--- a/lisp/emulation/viper-cmd.el
+++ b/lisp/emulation/viper-cmd.el
@@ -358,7 +358,7 @@
 					  'viper-insertion-ring))
 
 		(if viper-ESC-moves-cursor-back
-		    (or (bolp) (backward-char 1))))
+		    (or (bolp) (viper-beginning-of-field) (backward-char 1))))
 	       ))
 
 	;; insert or replace
@@ -1996,7 +1996,8 @@ Undo previous insertion and inserts new."
 ;;; Minibuffer business
 
 (defsubst viper-set-minibuffer-style ()
-  (add-hook 'minibuffer-setup-hook 'viper-minibuffer-setup-sentinel))
+  (add-hook 'minibuffer-setup-hook 'viper-minibuffer-setup-sentinel)
+  (add-hook 'post-command-hook 'viper-minibuffer-post-command-hook))
 
 
 (defun viper-minibuffer-setup-sentinel ()
@@ -2039,6 +2040,11 @@ Undo previous insertion and inserts new."
       (minibuffer-prompt-end)
     (point-min)))
 
+(defun viper-minibuffer-post-command-hook()
+  (when (active-minibuffer-window)
+    (when (< (point) (viper-minibuffer-real-start))
+      (goto-char (viper-minibuffer-real-start)))))
+
 
 ;; Interpret last event in the local map first; if fails, use exit-minibuffer.
 ;; Run viper-minibuffer-exit-hook before exiting.
@@ -2570,7 +2576,7 @@ These keys are ESC, RET, and LineFeed"
     ;; last line of buffer when this line has no \n.
     (viper-add-newline-at-eob-if-necessary)
     (viper-execute-com 'viper-line val com))
-  (if (and (eobp) (not (bobp))) (forward-line -1))
+  (if (and (eobp) (bolp) (not (bobp))) (forward-line -1))
   )
 
 (defun viper-yank-line (arg)
diff --git a/lisp/emulation/viper-init.el b/lisp/emulation/viper-init.el
index 9c1df1b0ad5..8aa7e4649d4 100644
--- a/lisp/emulation/viper-init.el
+++ b/lisp/emulation/viper-init.el
@@ -115,6 +115,11 @@ In all likelihood, you don't need to bother with this setting."
 
 ;;; Macros
 
+;; Fool the compiler to avoid warnings.
+;; Viper calls make-variable-buffer-local from within other functions, which
+;; triggers compiler warnings.
+(defalias 'viper-make-variable-buffer-local 'make-variable-buffer-local)
+
 (defmacro viper-deflocalvar (var default-value &optional documentation)
   `(progn
     (defvar ,var ,default-value
diff --git a/lisp/emulation/viper-macs.el b/lisp/emulation/viper-macs.el
index 9349a950e97..d401c148ad6 100644
--- a/lisp/emulation/viper-macs.el
+++ b/lisp/emulation/viper-macs.el
@@ -118,7 +118,7 @@ a key is a symbol, e.g., `a', `\\1', `f2', etc., or a list, e.g.,
       (define-key viper-vi-intercept-map "\C-x)" 'viper-end-mapping-kbd-macro)
       (define-key viper-insert-intercept-map "\C-x)" 'viper-end-mapping-kbd-macro)
       (define-key viper-emacs-intercept-map "\C-x)" 'viper-end-mapping-kbd-macro)
-      (message "Mapping %S in %s state.  Hit `C-x )' to complete the mapping"
+      (message "Mapping %S in %s state.  Type macro definition followed by `C-x )'"
 	       (viper-display-macro macro-name)
 	       (if ins "Insert" "Vi")))
     ))
@@ -170,7 +170,7 @@ a key is a symbol, e.g., `a', `\\1', `f2', etc., or a list, e.g.,
 	      ((stringp macro-name)
 	       (setq macro-name (vconcat macro-name)))
 	      (t (setq macro-name (vconcat (prin1-to-string macro-name)))))
-      (message ":map%s <Name>" variant)(sit-for 2)
+      (message ":map%s <Macro Name>" variant)(sit-for 2)
       (while
 	  (not (member key
 		       '(?\C-m ?\n (control m) (control j) return linefeed)))
@@ -442,10 +442,6 @@ If SCOPE is nil, the user is asked to specify the scope."
 		       scope)
 	       viper-custom-file-name))
 
-	  ;; 2005-09-18 T06:41:22-0400 (Sunday)    D. Goel
-	  ;; From careful parsing of the above code, it looks like msg
-	  ;; couldn't be nil when we reach here. Since it is a string,
-	  ;; and a complicated one too, we might as well provide it a "%s"
 	  (message "%s" msg)
 	  ))
 
diff --git a/lisp/emulation/viper-util.el b/lisp/emulation/viper-util.el
index cc9f42b9800..d0b9b34e4d6 100644
--- a/lisp/emulation/viper-util.el
+++ b/lisp/emulation/viper-util.el
@@ -1405,6 +1405,7 @@ This option is appropriate if you like Emacs-style words."
 		       viper-SEP-char-class
 		       (or within-line "\n")
 		       (if within-line (viper-line-pos 'end)))))
+
 (defsubst viper-skip-all-separators-backward (&optional within-line)
   (if (eq viper-syntax-preference 'strict-vi)
       (if within-line
@@ -1433,6 +1434,7 @@ This option is appropriate if you like Emacs-style words."
      ;; Emacs may consider some of these as words, but we don't want them
      viper-non-word-characters
      (viper-line-pos 'end))))
+
 (defun viper-skip-nonalphasep-backward ()
   (if (eq viper-syntax-preference 'strict-vi)
       (skip-chars-backward
@@ -1502,6 +1504,12 @@ This option is appropriate if you like Emacs-style words."
     total
     ))
 
+;; tells when point is at the beginning of field
+(defun viper-beginning-of-field ()
+  (or (bobp)
+      (not (eq (get-char-property (point) 'field)
+	       (get-char-property (1- (point)) 'field)))))
+
 
 ;; this is copied from cl-extra.el
 ;; Return the subsequence of SEQ from START to END.
diff --git a/lisp/emulation/viper.el b/lisp/emulation/viper.el
index bfa730cc434..b3fd6d139c0 100644
--- a/lisp/emulation/viper.el
+++ b/lisp/emulation/viper.el
@@ -9,7 +9,7 @@
 ;; Author: Michael Kifer <kifer@cs.stonybrook.edu>
 ;; Keywords: emulations
 
-(defconst viper-version "3.11.5 of August 6, 2005"
+(defconst viper-version "3.11.5 of September 19, 2005"
   "The current version of Viper")
 
 ;; This file is part of GNU Emacs.
@@ -606,7 +606,7 @@ This startup message appears whenever you load Viper, unless you type `y' now."
 	      (viper-set-expert-level 'dont-change-unless)))
 
 	(if viper-xemacs-p
-	    (make-variable-buffer-local 'bar-cursor))
+	    (viper-make-variable-buffer-local 'bar-cursor))
 	(if (eq major-mode 'viper-mode)
 	    (setq major-mode 'fundamental-mode))
 
@@ -769,6 +769,7 @@ It also can't undo some Viper settings."
   (remove-hook 'comint-mode-hook 'viper-comint-mode-hook)
   (remove-hook 'minibuffer-setup-hook 'viper-minibuffer-setup-sentinel)
   (remove-hook 'change-major-mode-hook 'viper-major-mode-change-sentinel)
+  (remove-hook 'post-command-hook 'viper-minibuffer-post-command-hook)
 
   ;; unbind Viper mouse bindings
   (viper-unbind-mouse-search-key)
@@ -1008,7 +1009,7 @@ It also can't undo some Viper settings."
   ;; ***This is needed only in case emulation-mode-map-alists is not defined
   (unless
       (and (fboundp 'add-to-ordered-list) (boundp 'emulation-mode-map-alists))
-    (make-variable-buffer-local 'minor-mode-map-alist))
+    (viper-make-variable-buffer-local 'minor-mode-map-alist))
 
   ;; Viper changes the default mode-line-buffer-identification
   (setq-default mode-line-buffer-identification '(" %b"))
@@ -1017,7 +1018,7 @@ It also can't undo some Viper settings."
   (setq next-line-add-newlines nil
 	require-final-newline t)
 
-  (make-variable-buffer-local 'require-final-newline)
+  (viper-make-variable-buffer-local 'require-final-newline)
 
   ;; don't bark when mark is inactive
   (if viper-emacs-p