Allow Info-fontify-maximum-menu-size to specify unlimited

[gnu-emacs] / lisp / info.el

diff --git a/lisp/info.el b/lisp/info.el
index 89ca8bdbe33e3f81f20291e5a6d815012639cf10..2a8ba9064b2295e742bfb16c90d72189e43005c7 100644 (file)
--- a/lisp/info.el
+++ b/lisp/info.el
@@ -138,10 +138,15 @@ The Lisp code is executed when the node is selected.")
   :type 'boolean
   :group 'info)
 
-(defcustom Info-fontify-maximum-menu-size 100000
+;; It's unfortunate that nil means no fontification, as opposed to no limit,
+;; since that differs from font-lock-maximum-size.
+(defcustom Info-fontify-maximum-menu-size 400000
   "Maximum size of menu to fontify if `font-lock-mode' is non-nil.
-Set to nil to disable node fontification."
-  :type 'integer
+Set to nil to disable node fontification; set to t for no limit."
+  :type '(choice (const :tag "No fontification" nil)
+                (const :tag "No size limit" t)
+                (integer :tag "Up to this many characters"))
+  :version "25.1"                      ; 100k -> 400k
   :group 'info)
 
 (defcustom Info-use-header-line t
@@ -774,8 +779,7 @@ with the top-level Info directory.
 In interactive use, a non-numeric prefix argument directs
 this command to read a file name from the minibuffer.
 
-A numeric prefix argument N selects an Info buffer named
-\"*info*<%s>\".
+A numeric prefix argument of N selects an Info buffer named \"*info*<N>\".
 
 The search path for Info files is in the variable `Info-directory-list'.
 The top-level Info directory is made by combining all the files named `dir'
@@ -2691,9 +2695,7 @@ Because of ambiguities, this should be concatenated with something like
                      (equal (nth 1 Info-complete-cache) Info-current-node)
                      (equal (nth 2 Info-complete-cache) Info-complete-next-re)
                      (equal (nth 5 Info-complete-cache) Info-complete-nodes)
-                     (let ((prev (nth 3 Info-complete-cache)))
-                       (eq t (compare-strings string 0 (length prev)
-                                              prev 0 nil t))))
+                     (string-prefix-p (nth 3 Info-complete-cache) string) t)
                 ;; We can reuse the previous list.
                 (setq completions (nth 4 Info-complete-cache))
               ;; The cache can't be used.
@@ -4011,6 +4013,7 @@ If FORK is non-nil, it is passed to `Info-goto-node'."
     (define-key map "," 'Info-index-next)
     (define-key map "\177" 'Info-scroll-down)
     (define-key map [mouse-2] 'Info-mouse-follow-nearest-node)
+    (define-key map [down-mouse-2] 'ignore) ;Override potential global binding.
     (define-key map [follow-link] 'mouse-face)
     (define-key map [XF86Back] 'Info-history-back)
     (define-key map [XF86Forward] 'Info-history-forward)
@@ -4607,7 +4610,9 @@ first line or header line, and for breadcrumb links.")
             (and Info-fontify-visited-nodes
                  ;; Don't take time to refontify visited nodes in huge nodes
                 Info-fontify-maximum-menu-size
-                 (< (- (point-max) (point-min)) Info-fontify-maximum-menu-size)))
+                 (or (eq Info-fontify-maximum-menu-size t)
+                    (< (- (point-max) (point-min))
+                       Info-fontify-maximum-menu-size))))
            rbeg rend)
 
       ;; Fontify header line
@@ -4864,7 +4869,9 @@ first line or header line, and for breadcrumb links.")
                  (search-forward "\n* Menu:" nil t)
                  ;; Don't take time to annotate huge menus
                 Info-fontify-maximum-menu-size
-                 (< (- (point-max) (point)) Info-fontify-maximum-menu-size))
+                (or (eq Info-fontify-maximum-menu-size t)
+                    (< (- (point-max) (point))
+                       Info-fontify-maximum-menu-size)))
         (let ((n 0)
               cont)
           (while (re-search-forward