Replace faulty non-matching regexp "\\<\\>" with "a\\`"

The regexp "\\<\\>", which is supposed never to match, actually matches, for
instance, where a Chinese character is directly followed by an ASCII letter.
So, replace it with "a\\`".

* lisp/progmodes/cc-defs.el (cc-fix, c-make-keywords-re)
* lisp/progmodes/cc-engine.el (c-beginning-of-statement-1)
(c-forward-<>-arglist-recur, c-forward-decl-or-cast-1)
(c-looking-at-decl-block)
* lisp/progmodes/cc-langs.el (c-assignment-op-regexp)
(c-block-comment-ender-regexp, c-block-comment-start-regexp)
(c-line-comment-start-regexp, c-doc-comment-start-regexp)
(c-decl-start-colon-kwd-re, c-type-decl-prefix-key)
(c-type-decl-operator-prefix-key, c-pre-id-bracelist-key)
(c-enum-clause-introduction-re, c-nonlabel-token-2-key)
* lisp/progmodes/cc-vars.el (c-noise-macro-with-parens-name-re)
(c-make-noise-macro-regexps):
Replace "\\<\\>" by "a\\`".

1 files changed, 11 insertions, 11 deletions

diff --git a/lisp/progmodes/cc-langs.el b/lisp/progmodes/cc-langs.el
index 9913c6feb2b..98cfd2073d1 100644
--- a/lisp/progmodes/cc-langs.el
+++ b/lisp/progmodes/cc-langs.el
@@ -1280,7 +1280,7 @@ operators."
 	   (c--set-difference (c-lang-const c-assignment-operators)
 			      '("=")
 			      :test 'string-equal)))
-      "\\<\\>"))
+      "a\\`"))
 (c-lang-defvar c-assignment-op-regexp
   (c-lang-const c-assignment-op-regexp))
 
@@ -1503,7 +1503,7 @@ properly."
   ;; language)
   t (if (c-lang-const c-block-comment-ender)
 	(regexp-quote (c-lang-const c-block-comment-ender))
-      "\\<\\>"))
+      "a\\`"))
 (c-lang-defvar c-block-comment-ender-regexp
 	       (c-lang-const c-block-comment-ender-regexp))
 
@@ -1522,7 +1522,7 @@ properly."
   ;; language)
   t (if (c-lang-const c-block-comment-starter)
 	(regexp-quote (c-lang-const c-block-comment-starter))
-      "\\<\\>"))
+      "a\\`"))
 (c-lang-defvar c-block-comment-start-regexp
   (c-lang-const c-block-comment-start-regexp))
 
@@ -1531,7 +1531,7 @@ properly."
   ;; language; it does in all 7 CC Mode languages).
   t (if (c-lang-const c-line-comment-starter)
 	(regexp-quote (c-lang-const c-line-comment-starter))
-      "\\<\\>"))
+      "a\\`"))
 (c-lang-defvar c-line-comment-start-regexp
 	       (c-lang-const c-line-comment-start-regexp))
 
@@ -1546,7 +1546,7 @@ properly."
 
 (c-lang-defconst c-doc-comment-start-regexp
   "Regexp to match the start of documentation comments."
-  t    "\\<\\>"
+  t    "a\\`"
   ;; From font-lock.el: `doxygen' uses /*! while others use /**.
   (c c++ objc) "/\\*[*!]"
   java "/\\*\\*"
@@ -2990,7 +2990,7 @@ Note that Java specific rules are currently applied to tell this from
   "Regexp matching a keyword that is followed by a colon, where
   the whole construct can precede a declaration.
   E.g. \"public:\" in C++."
-  t "\\<\\>"
+  t "a\\`"
   c++ (c-make-keywords-re t (c-lang-const c-protection-kwds)))
 (c-lang-defvar c-decl-start-colon-kwd-re
   (c-lang-const c-decl-start-colon-kwd-re))
@@ -3171,7 +3171,7 @@ Identifier syntax is in effect when this is matched \(see
   t (if (c-lang-const c-type-modifier-kwds)
 	(concat (regexp-opt (c-lang-const c-type-modifier-kwds) t) "\\>")
       ;; Default to a regexp that never matches.
-      "\\<\\>")
+      "a\\`")
   ;; Check that there's no "=" afterwards to avoid matching tokens
   ;; like "*=".
   (c objc) (concat "\\("
@@ -3209,7 +3209,7 @@ that might precede the identifier in a declaration, e.g. the
 as the end of the operator.  Identifier syntax is in effect when
 this is matched \(see `c-identifier-syntax-table')."
   t ;; Default to a regexp that never matches.
-    "\\<\\>"
+    "a\\`"
   ;; Check that there's no "=" afterwards to avoid matching tokens
   ;; like "*=".
   (c objc) (concat "\\(\\*\\)"
@@ -3368,7 +3368,7 @@ list."
 (c-lang-defconst c-pre-id-bracelist-key
   "A regexp matching tokens which, preceding an identifier, signify a bracelist.
 "
-  t "\\<\\>"
+  t "a\\`"
   c++ "new\\([^[:alnum:]_$]\\|$\\)\\|&&?\\(\\S.\\|$\\)")
 (c-lang-defvar c-pre-id-bracelist-key (c-lang-const c-pre-id-bracelist-key))
 
@@ -3424,7 +3424,7 @@ the invalidity of the putative template construct."
 	 ;; before the '{' of the enum list, to avoid searching too far.
 	 "[^][{};/#=]*"
 	 "{")
-      "\\<\\>"))
+      "a\\`"))
 (c-lang-defvar c-enum-clause-introduction-re
 	       (c-lang-const c-enum-clause-introduction-re))
 
@@ -3540,7 +3540,7 @@ i.e. before \":\".  Only used if `c-recognize-colon-labels' is set."
   "Regexp matching things that can't occur two symbols before a colon in
 a label construct.  This catches C++'s inheritance construct \"class foo
 : bar\".  Only used if `c-recognize-colon-labels' is set."
-  t "\\<\\>"				; matches nothing
+  t "a\\`"				; matches nothing
   c++ (c-make-keywords-re t '("class")))
 (c-lang-defvar c-nonlabel-token-2-key (c-lang-const c-nonlabel-token-2-key))