* lisp/isearch.el: Rename word search to regexp-function search

`isearch-word' went well beyond its original purpose, and the name
no longer makes sense.  It is now called
`isearch-regexp-function', and it's value should always be a
function that converts a string to a regexp (though setting it to
t is still supported for now).

(isearch-word): Make obsolete.
(isearch-regexp-function): New variable.
(isearch-mode, isearch-done, isearch--state, isearch--set-state)
(with-isearch-suspended, isearch-toggle-regexp)
(isearch-toggle-word, isearch-toggle-symbol)
(isearch-toggle-character-fold, isearch-query-replace)
(isearch-occur, isearch-highlight-regexp)
(isearch-search-and-update, isearch-message-prefix)
(isearch-search-fun-default, isearch-search)
(isearch-lazy-highlight-new-loop, isearch-lazy-highlight-search):
Use it.
(isearch-lazy-highlight-regexp-function): New var.
(isearch-lazy-highlight-word): Make obsolete.
(isearch--describe-regexp-mode): New function.
(isearch--describe-word-mode): Make obsolete.

* lisp/info.el (Info-isearch-search): Use the new var.

* lisp/replace.el (replace-search, replace-highlight): Use the new
var.

* lisp/obsolete/longlines.el (longlines-search-function): Use the
new var.

* lisp/hexl.el (hexl-isearch-search-function): Use the new var.

* lisp/cedet/semantic/senator.el (senator-isearch-search-fun): Use
the new var.

1 files changed, 2 insertions, 2 deletions

diff --git a/lisp/replace.el b/lisp/replace.el
index 3a908ac4d8d..d6590c5516a 100644
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -2013,7 +2013,7 @@ It is called with three arguments, as if it were
   ;; outside of this function because then another I-search
   ;; used after `recursive-edit' might override them.
   (let* ((isearch-regexp regexp-flag)
-         (isearch-word (or delimited-flag
+         (isearch-regexp-function (or delimited-flag
                            (and replace-character-fold
                                 (not regexp-flag)
                                 #'character-fold-to-regexp)))
@@ -2046,7 +2046,7 @@ It is called with three arguments, as if it were
   (if query-replace-lazy-highlight
       (let ((isearch-string search-string)
             (isearch-regexp regexp-flag)
-            (isearch-word delimited-flag)
+            (isearch-regexp-function delimited-flag)
             (isearch-lax-whitespace
              replace-lax-whitespace)
             (isearch-regexp-lax-whitespace