XEmacs 21.2.27 "Hera".

[chise/xemacs-chise.git.1] / lisp / minibuf.el

diff --git a/lisp/minibuf.el b/lisp/minibuf.el
index d567f42..af83e9c 100644 (file)
--- a/lisp/minibuf.el
+++ b/lisp/minibuf.el
@@ -77,10 +77,12 @@ t means to return a list of all possible completions of STRING.
 (defvar minibuffer-completion-confirm nil
   "Non-nil => demand confirmation of completion before exiting minibuffer.")
 
-(defvar minibuffer-confirm-incomplete nil
+(defcustom minibuffer-confirm-incomplete nil
   "If true, then in contexts where completing-read allows answers which
 are not valid completions, an extra RET must be typed to confirm the
-response.  This is helpful for catching typos, etc.")
+response.  This is helpful for catching typos, etc."
+  :type 'boolean
+  :group 'minibuffer)
 
 (defcustom completion-auto-help t
   "*Non-nil means automatically provide help for invalid completion input."
@@ -344,7 +346,8 @@ minibuffer history if its length is less than that value."
                                     keymap
                                     readp
                                     history
-                                   abbrev-table)
+                                   abbrev-table
+                                   default)
   "Read a string from the minibuffer, prompting with string PROMPT.
 If optional second arg INITIAL-CONTENTS is non-nil, it is a string
   to be inserted into the minibuffer before reading input.
@@ -366,6 +369,8 @@ Fifth arg HISTORY, if non-nil, specifies a history list
   Positions are counted starting from 1 at the beginning of the list.
 Sixth arg ABBREV-TABLE, if non-nil, becomes the value of `local-abbrev-table'
   in the minibuffer.
+Seventh arg DEFAULT, if non-nil, will be returned when user enters
+  an empty string.
 
 See also the variable completion-highlight-first-word-only for control over
   completion display."
@@ -412,7 +417,8 @@ See also the variable completion-highlight-first-word-only for control over
         ;; `M-x doctor' makes history a local variable, and thus
         ;; our binding above is buffer-local and doesn't apply
         ;; once we switch buffers!!!!  We demand better scope!
-        (_history_ history))
+        (_history_ history)
+        (minibuffer-default default))
     (unwind-protect
          (progn
            (set-buffer (reset-buffer buffer))
@@ -490,8 +496,13 @@ See also the variable completion-highlight-first-word-only for control over
                (let* ((val (progn (set-buffer buffer)
                                   (if minibuffer-exit-hook
                                       (run-hooks 'minibuffer-exit-hook))
-                                  (buffer-string)))
-                    (histval val)
+                                  (if (and (eq (char-after (point-min)) nil)
+                                          default)
+                                     default
+                                   (buffer-string))))
+                     (histval (if (and default (string= val ""))
+                                  default
+                                val))
                       (err nil))
                  (if readp
                      (condition-case e
@@ -784,7 +795,9 @@ Completion ignores case if the ambient value of
                                        minibuffer-local-completion-map
                                      minibuffer-local-must-match-map)
                                    nil
-                                   history))
+                                   history
+                                   nil
+                                   default))
     (if (and (string= ret "")
             default)
        default
@@ -1237,7 +1250,9 @@ With prefix argument N, search for Nth previous match.
 If N is negative, find the next or Nth next match."
   (interactive
    (let ((enable-recursive-minibuffers t)
-        (minibuffer-history-sexp-flag nil))
+        (minibuffer-history-sexp-flag nil)
+        (minibuffer-max-depth (and minibuffer-max-depth
+                                   (1+ minibuffer-max-depth))))
      (if (eq 't (symbol-value minibuffer-history-variable))
         (error "History is not being recorded in this context"))
      (list (read-from-minibuffer "Previous element matching (regexp): "
@@ -1285,7 +1300,9 @@ With prefix argument N, search for Nth next match.
 If N is negative, find the previous or Nth previous match."
   (interactive
    (let ((enable-recursive-minibuffers t)
-        (minibuffer-history-sexp-flag nil))
+        (minibuffer-history-sexp-flag nil)
+        (minibuffer-max-depth (and minibuffer-max-depth
+                                   (1+ minibuffer-max-depth))))
      (if (eq t (symbol-value minibuffer-history-variable))
         (error "History is not being recorded in this context"))
      (list (read-from-minibuffer "Next element matching (regexp): "
@@ -1434,7 +1451,10 @@ only existing buffer names are allowed."
         result)
     (while (progn
              (setq result (completing-read prompt alist nil require-match
-                                          nil 'buffer-history))
+                                          nil 'buffer-history 
+                                          (if (bufferp default)
+                                              (buffer-name default)
+                                            default)))
              (cond ((not (equal result ""))
                     nil)
                    ((not require-match)
@@ -1537,8 +1557,9 @@ only existing buffer names are allowed."
                                      read-file-name-map
                                    read-file-name-must-match-map)
                                  nil
-                                 history))
-             ))
+                                 history
+                                 nil
+                                 default))))
 ;;;     ;; Kludge!  Put "/foo/bar" on history rather than "/default//foo/bar"
 ;;;     (let ((hist (cond ((not history) 'minibuffer-history)
 ;;;                       ((consp history) (car history))
@@ -1631,7 +1652,7 @@ only existing buffer names are allowed."
 This will prompt with a dialog box if appropriate, according to
  `should-use-dialog-box-p'.
 Value is not expanded---you must call `expand-file-name' yourself.
-Value is subject to interpreted by substitute-in-file-name however.
+Value is subject to interpretation by `substitute-in-file-name' however.
 Default name to DEFAULT if user enters a null string.
  (If DEFAULT is omitted, the visited file name is used,
   except that if INITIAL-CONTENTS is specified, that combined with DIR is