Update copyright year to 2016

[gnu-emacs] / lisp / textmodes / ispell.el

diff --git a/lisp/textmodes/ispell.el b/lisp/textmodes/ispell.el
index 7d5bb6dbc592a23ca15f06fbc839557d1c7d7e8b..97e64c906c81a3ae5de6bae6e06b8249b0dec88d 100644 (file)
--- a/lisp/textmodes/ispell.el
+++ b/lisp/textmodes/ispell.el
@@ -1,6 +1,6 @@
 ;;; ispell.el --- interface to International Ispell Versions 3.1 and 3.2
 
-;; Copyright (C) 1994-1995, 1997-2015 Free Software Foundation, Inc.
+;; Copyright (C) 1994-1995, 1997-2016 Free Software Foundation, Inc.
 
 ;; Author:           Ken Stevens <k.stevens@ieee.org>
 ;; Maintainer:       Ken Stevens <k.stevens@ieee.org>
@@ -1782,6 +1782,51 @@ Extended character mode can be changed for this buffer by placing
 a `~' followed by an extended-character mode -- such as `~.tex'.
 The last occurring definition in the buffer will be used.")
 
+(defun ispell--\\w-filter (char)
+  "Return CHAR in a string when CHAR doesn't have \"word\" syntax,
+nil otherwise.  CHAR must be a character."
+  (let ((str (string char)))
+    (and
+     (not (string-match "\\w" str))
+     str)))
+
+(defun ispell--make-\\w-expression (chars)
+  "Make a regular expression like \"\\(\\w\\|[-_]\\)\".
+This (parenthesized) expression matches either a character of
+\"word\" syntax or one in CHARS.
+
+CHARS is a string of characters.  A member of CHARS is omitted
+from the expression if it already has word syntax.  (Be careful
+about special characters such as ?\\, ?^, ?], and ?- in CHARS.)
+If after this filtering there are no chars left, or only one, a
+special form of the expression is generated."
+  (let ((filtered
+        (mapconcat #'ispell--\\w-filter chars "")))
+    (concat
+     "\\(\\w"
+     (cond
+      ((equal filtered "")
+       "\\)")
+      ((eq (length filtered) 1)
+       (concat "\\|" filtered "\\)"))
+      (t
+       (concat "\\|[" filtered "]\\)"))))))
+
+(defun ispell--make-filename-or-URL-re ()
+  "Construct a regexp to match some file names or URLs or email addresses.
+The expression is crafted to match as great a variety of these
+objects as practicable, without too many false matches happening."
+  (concat ;"\\(--+\\|_+\\|"
+          "\\(/\\w\\|\\("
+          (ispell--make-\\w-expression "-_")
+          "+[.:@]\\)\\)"
+          (ispell--make-\\w-expression "-_")
+          "*\\([.:/@]+"
+          (ispell--make-\\w-expression "-_~=?&")
+          "+\\)+"
+          ;"\\)"
+          ))
+
 ;;;###autoload
 (defvar ispell-skip-region-alist
   `((ispell-words-keyword         forward-line)
@@ -1798,7 +1843,7 @@ The last occurring definition in the buffer will be used.")
     ;; Matches e-mail addresses, file names, http addresses, etc.  The
     ;; `-+' `_+' patterns are necessary for performance reasons when
     ;; `-' or `_' part of word syntax.
-    (,(purecopy "\\(--+\\|_+\\|\\(/\\w\\|\\(\\(\\w\\|[-_]\\)+[.:@]\\)\\)\\(\\w\\|[-_]\\)*\\([.:/@]+\\(\\w\\|[-_~=?&]\\)+\\)+\\)"))
+;    (,(purecopy "\\(--+\\|_+\\|\\(/\\w\\|\\(\\(\\w\\|[-_]\\)+[.:@]\\)\\)\\(\\w\\|[-_]\\)*\\([.:/@]+\\(\\w\\|[-_~=?&]\\)+\\)+\\)"))
     ;; above checks /.\w sequences
     ;;("\\(--+\\|\\(/\\|\\(\\(\\w\\|[-_]\\)+[.:@]\\)\\)\\(\\w\\|[-_]\\)*\\([.:/@]+\\(\\w\\|[-_~=?&]\\)+\\)+\\)")
     ;; This is a pretty complex regexp.  It can be simplified to the following:
@@ -2323,7 +2368,7 @@ Global `ispell-quit' set to start location to continue spell session."
     (run-hooks 'ispell-update-post-hook)
 
     ;; ensure word is visible
-    (if (not (pos-visible-in-window-p end nil nil t))
+    (if (not (pos-visible-in-window-group-p end))
        (sit-for 0))
 
     ;; Display choices for misspelled word.
@@ -2816,6 +2861,7 @@ The variable `ispell-highlight-face' selects the face to use for highlighting."
                  (regexp-quote (buffer-substring-no-properties start end))
                  "\\b"))
                (isearch-regexp t)
+               (isearch-regexp-function nil)
                (isearch-case-fold-search nil)
                (isearch-forward t)
                (isearch-other-end start)
@@ -3387,7 +3433,8 @@ Must be called after `ispell-buffer-local-parsing' due to dependence on mode."
               (if (string= "" comment-end) "^" (regexp-quote comment-end)))
           (if (and (null ispell-check-comments) comment-start)
               (regexp-quote comment-start))
-          (ispell-begin-skip-region ispell-skip-region-alist)))
+          (ispell-begin-skip-region ispell-skip-region-alist)
+          (ispell--make-filename-or-URL-re)))
    "\\|"))
 
 
@@ -3426,6 +3473,8 @@ Manual checking must include comments and tib references.
 The list is of the form described by variable `ispell-skip-region-alist'.
 Must be called after `ispell-buffer-local-parsing' due to dependence on mode."
   (let ((skip-alist ispell-skip-region-alist))
+    (setq skip-alist (append (list (list (ispell--make-filename-or-URL-re)))
+                             skip-alist))
     ;; only additional explicit region definition is tex.
     (if (eq ispell-parser 'tex)
        (setq case-fold-search nil
@@ -4119,9 +4168,10 @@ You can bind this to the key C-c i in GNUS or mail by adding to
                      (ispell-non-empty-string vm-included-text-prefix)))
             (t default-prefix)))
           (ispell-skip-region-alist
-           (cons (list (concat "^\\(" cite-regexp "\\)")
-                       (function forward-line))
-                 ispell-skip-region-alist))
+           (cons (list (ispell--make-filename-or-URL-re))
+                  (cons (list (concat "^\\(" cite-regexp "\\)")
+                              (function forward-line))
+                        ispell-skip-region-alist)))
           (old-case-fold-search case-fold-search)
           (dictionary-alist ispell-message-dictionary-alist)
           (ispell-checking-message t))