From: Alan Mackenzie <acm@muc.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Consequent CC Mode fix to the release branch or to master?
Date: Mon, 23 Jan 2023 17:04:00 +0000 [thread overview]
Message-ID: <Y86+AEk2H2tM/WU+@ACM> (raw)
In-Reply-To: <83h6whi4g5.fsf@gnu.org>
Hello, Eli.
On Mon, Jan 23, 2023 at 18:46:50 +0200, Eli Zaretskii wrote:
> > Date: Mon, 23 Jan 2023 16:00:49 +0000
> > Cc: emacs-devel@gnu.org
> > From: Alan Mackenzie <acm@muc.de>
> > Whilst fixing bug #59234 (Inappropriate fontification as a type of
> > function call NSRectFill), I came across inappropriate handling of
> > whitespace which leads to the Lisp error "Invalid search bound (wrong
> > side of point)". This error is likely to occur only rarely, and probably
> > not in the more used CC Mode modes such as C and C++.
> > I now have a patch to fix this. Is it still OK to commit such patches to
> > the release branch, or would it be preferred to commit it to master?
> It depends on the patch. Please show it, so I could have an idea of
> what it entails.
OK, here it is:
CC Mode: Don't do c-backward-syntactic-ws following a forward movement
This was happening in, e.g., c-forward-type, which moves over whitespace
at the end of the scanned type. This WS movement can exit a comment or a
macro, such that a c-backward-syntactic-ws does not return to the desired
point, but to before the entire comment/macro.
* cc-engine.el (c-forward-keyword-prefixed-id, c-forward-id-comma-list)
(c-forward-noise-clause, c-forward-keyword-clause, c-forward-name)
(c-forward-type): Add a new &optional parameter `stop-at-end' which when
non-nil means "do not move over syntactic WS after performing the main job",
and adapt the internals of this macros and functions accordingly.
(c-forward-declarator, c-forward-decl-or-cast-1): In the calls to
c-forward-type and c-forward-name, set the stop-at-end argument to t, and call
c-forward-sytactic-ws later.
diff -r c92df45c6758 cc-engine.el
--- a/cc-engine.el Thu Jan 19 10:39:25 2023 +0000
+++ b/cc-engine.el Mon Jan 23 15:16:50 2023 +0000
@@ -8314,10 +8314,17 @@
(setq c-record-ref-identifiers
(cons range c-record-ref-identifiers))))))
-(defmacro c-forward-keyword-prefixed-id (type)
+(defmacro c-forward-keyword-prefixed-id (type &optional stop-at-end)
;; Used internally in `c-forward-keyword-clause' to move forward
;; over a type (if TYPE is 'type) or a name (otherwise) which
;; possibly is prefixed by keywords and their associated clauses.
+ ;; Point should be at the type/name or a preceding keyword at the start of
+ ;; the macro, and it is left at the first token following the type/name,
+ ;; or (when STOP-AT-END is non-nil) immediately after that type/name.
+ ;;
+ ;; Note that both parameters are evaluated at compile time, not run time,
+ ;; so they must be constants.
+ ;;
;; Try with a type/name first to not trip up on those that begin
;; with a keyword. Return t if a known or found type is moved
;; over. The point is clobbered if nil is returned. If range
@@ -8326,51 +8333,84 @@
;;
;; This macro might do hidden buffer changes.
(declare (debug t))
- `(let (res)
+ `(let (res pos)
(setq c-last-identifier-range nil)
(while (if (setq res ,(if (eq type 'type)
- `(c-forward-type)
- `(c-forward-name)))
- nil
- (cond ((looking-at c-keywords-regexp)
- (c-forward-keyword-clause 1))
- ((and c-opt-cpp-prefix
- (looking-at c-noise-macro-with-parens-name-re))
- (c-forward-noise-clause)))))
+ `(c-forward-type nil ,stop-at-end)
+ `(c-forward-name ,stop-at-end)))
+ (progn
+ (setq pos (point))
+ nil)
+ (and
+ (cond ((looking-at c-keywords-regexp)
+ (c-forward-keyword-clause 1 t))
+ ((and c-opt-cpp-prefix
+ (looking-at c-noise-macro-with-parens-name-re))
+ (c-forward-noise-clause t)))
+ (progn
+ (setq pos (point))
+ (c-forward-syntactic-ws)
+ t))))
(when (memq res '(t known found prefix maybe))
(when c-record-type-identifiers
,(if (eq type 'type)
`(c-record-type-id c-last-identifier-range)
`(c-record-ref-id c-last-identifier-range)))
+ (when pos
+ (goto-char pos)
+ ,(unless stop-at-end
+ `(c-forward-syntactic-ws)))
t)))
-(defmacro c-forward-id-comma-list (type update-safe-pos)
+(defmacro c-forward-id-comma-list (type update-safe-pos &optional stop-at-end)
;; Used internally in `c-forward-keyword-clause' to move forward
;; over a comma separated list of types or names using
- ;; `c-forward-keyword-prefixed-id'.
+ ;; `c-forward-keyword-prefixed-id'. Point should start at the first token
+ ;; after the already scanned type/name, or (if STOP-AT-END is non-nil)
+ ;; immediately after that type/name. Point is left either before or
+ ;; after the whitespace following the last type/name in the list, depending
+ ;; on whether STOP-AT-END is non-nil or nil. The return value is without
+ ;; significance.
+ ;;
+ ;; Note that all three parameters are evaluated at compile time, not run
+ ;; time, so they must be constants.
;;
;; This macro might do hidden buffer changes.
(declare (debug t))
- `(while (and (progn
- ,(when update-safe-pos
- `(setq safe-pos (point)))
- (eq (char-after) ?,))
- (progn
- (forward-char)
- (c-forward-syntactic-ws)
- (c-forward-keyword-prefixed-id ,type)))))
-
-(defun c-forward-noise-clause ()
+ `(let ((pos (point)))
+ (while (and (progn
+ ,(when update-safe-pos
+ `(setq safe-pos (point)))
+ (setq pos (point))
+ (c-forward-syntactic-ws)
+ (eq (char-after) ?,))
+ (progn
+ (forward-char)
+ (setq pos (point))
+ (c-forward-syntactic-ws)
+ (c-forward-keyword-prefixed-id ,type t))))
+ (goto-char pos)
+ ,(unless stop-at-end
+ `(c-forward-syntactic-ws))))
+
+(defun c-forward-noise-clause (&optional stop-at-end)
;; Point is at a c-noise-macro-with-parens-names macro identifier. Go
;; forward over this name, any parenthesis expression which follows it, and
- ;; any syntactic WS, ending up at the next token or EOB. If there is an
+ ;; any syntactic WS, ending up either at the next token or EOB or (when
+ ;; STOP-AT-END is non-nil) directly after the clause. If there is an
;; unbalanced paren expression, leave point at it. Always Return t.
- (or (zerop (c-forward-token-2))
- (goto-char (point-max)))
- (if (and (eq (char-after) ?\()
- (c-go-list-forward))
+ (let (pos)
+ (or (c-forward-over-token)
+ (goto-char (point-max)))
+ (setq pos (point))
+ (c-forward-syntactic-ws)
+ (when (and (eq (char-after) ?\()
+ (c-go-list-forward))
+ (setq pos (point)))
+ (goto-char pos)
+ (unless stop-at-end
(c-forward-syntactic-ws))
- t)
+ t))
(defun c-forward-noise-clause-not-macro-decl (maybe-parens)
;; Point is at a noise macro identifier, which, when MAYBE-PARENS is
@@ -8404,11 +8444,12 @@
(goto-char here)
nil)))
-(defun c-forward-keyword-clause (match)
+(defun c-forward-keyword-clause (match &optional stop-at-end)
;; Submatch MATCH in the current match data is assumed to surround a
;; token. If it's a keyword, move over it and any immediately
- ;; following clauses associated with it, stopping at the start of
- ;; the next token. t is returned in that case, otherwise the point
+ ;; following clauses associated with it, stopping either at the start
+ ;; of the next token, or (when STOP-AT-END is non-nil) at the end
+ ;; of the clause. t is returned in that case, otherwise the point
;; stays and nil is returned. The kind of clauses that are
;; recognized are those specified by `c-type-list-kwds',
;; `c-ref-list-kwds', `c-colon-type-list-kwds',
@@ -8438,19 +8479,23 @@
(when kwd-sym
(goto-char (match-end match))
+ (setq safe-pos (point))
(c-forward-syntactic-ws)
- (setq safe-pos (point))
(cond
((and (c-keyword-member kwd-sym 'c-type-list-kwds)
- (c-forward-keyword-prefixed-id type))
+ (c-forward-keyword-prefixed-id type t))
;; There's a type directly after a keyword in `c-type-list-kwds'.
- (c-forward-id-comma-list type t))
+ (setq safe-pos (point))
+ (c-forward-syntactic-ws)
+ (c-forward-id-comma-list type t t))
((and (c-keyword-member kwd-sym 'c-ref-list-kwds)
- (c-forward-keyword-prefixed-id ref))
+ (c-forward-keyword-prefixed-id ref t))
;; There's a name directly after a keyword in `c-ref-list-kwds'.
- (c-forward-id-comma-list ref t))
+ (setq safe-pos (point))
+ (c-forward-syntactic-ws)
+ (c-forward-id-comma-list ref t t))
((and (c-keyword-member kwd-sym 'c-paren-any-kwds)
(eq (char-after) ?\())
@@ -8470,20 +8515,20 @@
(goto-char (match-end 0)))))
(goto-char pos)
- (c-forward-syntactic-ws)
- (setq safe-pos (point))))
+ (setq safe-pos (point)))
+ (c-forward-syntactic-ws))
((and (c-keyword-member kwd-sym 'c-<>-sexp-kwds)
(eq (char-after) ?<)
(c-forward-<>-arglist (c-keyword-member kwd-sym 'c-<>-type-kwds)))
- (c-forward-syntactic-ws)
- (setq safe-pos (point)))
+ (setq safe-pos (point))
+ (c-forward-syntactic-ws))
((and (c-keyword-member kwd-sym 'c-nonsymbol-sexp-kwds)
(not (looking-at c-symbol-start))
(c-safe (c-forward-sexp) t))
- (c-forward-syntactic-ws)
- (setq safe-pos (point)))
+ (setq safe-pos (point))
+ (c-forward-syntactic-ws))
((and (c-keyword-member kwd-sym 'c-protection-kwds)
(or (null c-post-protection-token)
@@ -8493,8 +8538,8 @@
(not (c-end-of-current-token))))))
(if c-post-protection-token
(goto-char (match-end 0)))
- (c-forward-syntactic-ws)
- (setq safe-pos (point))))
+ (setq safe-pos (point))
+ (c-forward-syntactic-ws)))
(when (c-keyword-member kwd-sym 'c-colon-type-list-kwds)
(if (eq (char-after) ?:)
@@ -8503,8 +8548,10 @@
(progn
(forward-char)
(c-forward-syntactic-ws)
- (when (c-forward-keyword-prefixed-id type)
- (c-forward-id-comma-list type t)))
+ (when (c-forward-keyword-prefixed-id type t)
+ (setq safe-pos (point))
+ (c-forward-syntactic-ws)
+ (c-forward-id-comma-list type t t)))
;; Not at the colon, so stop here. But the identifier
;; ranges in the type list later on should still be
;; recorded.
@@ -8514,18 +8561,20 @@
;; this one, we move forward to the colon following the
;; clause matched above.
(goto-char safe-pos)
+ (c-forward-syntactic-ws)
(c-forward-over-colon-type-list))
(progn
(c-forward-syntactic-ws)
- (c-forward-keyword-prefixed-id type))
+ (c-forward-keyword-prefixed-id type t))
;; There's a type after the `c-colon-type-list-re' match
;; after a keyword in `c-colon-type-list-kwds'.
(c-forward-id-comma-list type nil))))
(goto-char safe-pos)
+ (unless stop-at-end
+ (c-forward-syntactic-ws))
t)))
-
(defun c-forward-<>-arglist (all-types)
;; The point is assumed to be at a "<". Try to treat it as the open
;; paren of an angle bracket arglist and move forward to the
@@ -8849,11 +8898,12 @@
(/= (point) start))))
-(defun c-forward-name ()
- ;; Move forward over a complete name if at the beginning of one,
- ;; stopping at the next following token. A keyword, as such,
- ;; doesn't count as a name. If the point is not at something that
- ;; is recognized as a name then it stays put.
+(defun c-forward-name (&optional stop-at-end)
+ ;; Move forward over a complete name if at the beginning of one, stopping
+ ;; either at the next following token or (when STOP-AT-END is non-nil) at
+ ;; the end of the name. A keyword, as such, doesn't count as a name. If
+ ;; the point is not at something that is recognized as a name then it stays
+ ;; put.
;;
;; A name could be something as simple as "foo" in C or something as
;; complex as "X<Y<class A<int>::B, BIT_MAX >> b>, ::operator<> ::
@@ -8875,7 +8925,7 @@
;;
;; This function might do hidden buffer changes.
- (let ((pos (point)) (start (point)) res id-start id-end
+ (let ((pos (point)) pos2 pos3 (start (point)) res id-start id-end
;; Turn off `c-promote-possible-types' here since we might
;; call `c-forward-<>-arglist' and we don't want it to promote
;; every suspect thing in the arglist to a type. We're
@@ -8917,7 +8967,7 @@
(c-forward-syntactic-ws lim+)
(cond ((eq (char-before id-end) ?e)
;; Got "... ::template".
- (let ((subres (c-forward-name)))
+ (let ((subres (c-forward-name t)))
(when subres
(setq pos (point)
res subres))))
@@ -8929,7 +8979,7 @@
(and (eq (c-forward-token-2) 0)
(not (eq (char-after) ?\())))))
;; Got a cast operator.
- (when (c-forward-type)
+ (when (c-forward-type nil t)
(setq pos (point)
res 'operator)
;; Now we should match a sequence of either
@@ -8953,8 +9003,8 @@
(forward-char)
t)))))
(while (progn
+ (setq pos (point))
(c-forward-syntactic-ws lim+)
- (setq pos (point))
(and
(<= (point) lim+)
(looking-at c-opt-type-modifier-key)))
@@ -8969,30 +9019,34 @@
;; operator"" has an (?)optional tag after it.
(progn
(goto-char (match-end 0))
+ (setq pos2 (point))
(c-forward-syntactic-ws lim+)
(when (c-on-identifier)
- (c-forward-token-2 1 nil lim+)))
- (goto-char (match-end 0))
- (c-forward-syntactic-ws lim+))
- (setq pos (point)
+ (c-forward-over-token nil lim+)))
+ (goto-char (match-end 0))
+ (setq pos2 (point))
+ (c-forward-syntactic-ws lim+))
+ (setq pos pos2
res 'operator)))
nil)
;; `id-start' is equal to `id-end' if we've jumped over
;; an identifier that doesn't end with a symbol token.
- ;; That can occur e.g. for Java import directives on the
+ ;; That can occur e.g. for Java import directives of the
;; form "foo.bar.*".
(when (and id-start (/= id-start id-end))
(setq c-last-identifier-range
(cons id-start id-end)))
(goto-char id-end)
+ (setq pos (point))
(c-forward-syntactic-ws lim+)
- (setq pos (point)
- res t)))
+ (setq res t)))
(progn
(goto-char pos)
+ (c-forward-syntactic-ws lim+)
+ (setq pos3 (point))
(when (or c-opt-identifier-concat-key
c-recognize-<>-arglists)
@@ -9003,7 +9057,6 @@
;; cases with tricky syntactic whitespace that aren't
;; covered in `c-identifier-key'.
(goto-char (match-end 0))
- (c-forward-syntactic-ws lim+)
t)
((and c-recognize-<>-arglists
@@ -9015,11 +9068,12 @@
;; `lim+'.
(setq lim+ (c-determine-+ve-limit 500))
+ (setq pos2 (point))
(c-forward-syntactic-ws lim+)
(unless (eq (char-after) ?\()
(setq c-last-identifier-range nil)
- (c-add-type start (1+ pos)))
- (setq pos (point))
+ (c-add-type start (1+ pos3)))
+ (setq pos pos2)
(if (and c-opt-identifier-concat-key
(looking-at c-opt-identifier-concat-key))
@@ -9029,7 +9083,7 @@
(progn
(when (and c-record-type-identifiers id-start)
(c-record-ref-id (cons id-start id-end)))
- (forward-char 2)
+ (goto-char (match-end 0))
(c-forward-syntactic-ws lim+)
t)
@@ -9041,11 +9095,14 @@
)))))
(goto-char pos)
+ (unless stop-at-end
+ (c-forward-syntactic-ws lim+))
res))
-(defun c-forward-type (&optional brace-block-too)
+(defun c-forward-type (&optional brace-block-too stop-at-end)
;; Move forward over a type spec if at the beginning of one,
- ;; stopping at the next following token. The keyword "typedef"
+ ;; stopping at the next following token (if STOP-AT-END is nil) or
+ ;; at the end of the type spec (otherwise). The keyword "typedef"
;; isn't part of a type spec here.
;;
;; BRACE-BLOCK-TOO, when non-nil, means move over the brace block in
@@ -9094,6 +9151,7 @@
(when (looking-at c-no-type-key)
(setq res 'no-id)))
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)
(or (eq res 'no-id)
(setq res 'prefix))))
@@ -9102,32 +9160,41 @@
(cond
((looking-at c-typeof-key) ; e.g. C++'s "decltype".
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)
(setq res (and (eq (char-after) ?\()
(c-safe (c-forward-sexp))
'decltype))
(if res
- (c-forward-syntactic-ws)
+ (progn
+ (setq pos (point))
+ (c-forward-syntactic-ws))
(goto-char start)))
((looking-at c-type-prefix-key) ; e.g. "struct", "class", but NOT
; "typedef".
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)
(while (cond
((looking-at c-decl-hangon-key)
- (c-forward-keyword-clause 1))
+ (c-forward-keyword-clause 1 t)
+ (setq pos (point))
+ (c-forward-syntactic-ws))
((looking-at c-pack-key)
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws))
((and c-opt-cpp-prefix
(looking-at c-noise-macro-with-parens-name-re))
- (c-forward-noise-clause))))
-
+ (c-forward-noise-clause t)
+ (setq pos (point))
+ (c-forward-syntactic-ws))))
+
+ (setq id-start (point))
+ (setq name-res (c-forward-name t))
(setq pos (point))
-
- (setq name-res (c-forward-name))
(setq res (not (null name-res)))
(when (eq name-res t)
;; With some keywords the name can be used without the prefix, so we
@@ -9135,21 +9202,21 @@
(when (save-excursion
(goto-char post-prefix-pos)
(looking-at c-self-contained-typename-key))
- (c-add-type pos (save-excursion
- (c-backward-syntactic-ws)
- (point))))
+ (c-add-type id-start
+ (point)))
(when (and c-record-type-identifiers
c-last-identifier-range)
(c-record-type-id c-last-identifier-range)))
+ (c-forward-syntactic-ws)
(when (and brace-block-too
(memq res '(t nil))
(eq (char-after) ?\{)
(save-excursion
(c-safe
(progn (c-forward-sexp)
- (c-forward-syntactic-ws)
(setq pos (point))))))
(goto-char pos)
+ (c-forward-syntactic-ws)
(setq res t))
(unless res (goto-char start))) ; invalid syntax
@@ -9163,7 +9230,7 @@
(if (looking-at c-identifier-start)
(save-excursion
(setq id-start (point)
- name-res (c-forward-name))
+ name-res (c-forward-name t))
(when name-res
(setq id-end (point)
id-range c-last-identifier-range))))
@@ -9176,8 +9243,9 @@
(>= (save-excursion
(save-match-data
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)
- (setq pos (point))))
+ pos))
id-end)
(setq res nil)))))
;; Looking at a primitive or known type identifier. We've
@@ -9185,7 +9253,7 @@
;; known type match only is a prefix of another name.
(setq id-end (match-end 1))
-
+
(when (and c-record-type-identifiers
(or c-promote-possible-types (eq res t)))
(c-record-type-id (cons (match-beginning 1) (match-end 1))))
@@ -9195,35 +9263,41 @@
(looking-at c-opt-type-component-key)))
;; There might be more keywords for the type.
(let (safe-pos)
- (c-forward-keyword-clause 1)
+ (c-forward-keyword-clause 1 t)
(while (progn
(setq safe-pos (point))
+ (c-forward-syntactic-ws)
(looking-at c-opt-type-component-key))
(when (and c-record-type-identifiers
(looking-at c-primitive-type-key))
(c-record-type-id (cons (match-beginning 1)
(match-end 1))))
- (c-forward-keyword-clause 1))
+ (c-forward-keyword-clause 1 t))
(if (looking-at c-primitive-type-key)
(progn
(when c-record-type-identifiers
(c-record-type-id (cons (match-beginning 1)
(match-end 1))))
- (c-forward-keyword-clause 1)
+ (c-forward-keyword-clause 1 t)
(setq res t))
(goto-char safe-pos)
- (setq res 'prefix)))
- (unless (save-match-data (c-forward-keyword-clause 1))
+ (setq res 'prefix))
+ (setq pos (point)))
+ (if (save-match-data (c-forward-keyword-clause 1 t))
+ (setq pos (point))
(if pos
(goto-char pos)
(goto-char (match-end 1))
- (c-forward-syntactic-ws)))))
+ (setq pos (point)))))
+ (c-forward-syntactic-ws))
((and (eq name-res t)
(eq res 'prefix)
(c-major-mode-is 'c-mode)
(save-excursion
(goto-char id-end)
+ (setq pos (point))
+ (c-forward-syntactic-ws)
(and (not (looking-at c-symbol-start))
(not (looking-at c-type-decl-prefix-key)))))
;; A C specifier followed by an implicit int, e.g.
@@ -9235,13 +9309,11 @@
(cond ((eq name-res t)
;; A normal identifier.
(goto-char id-end)
+ (setq pos (point))
(if (or res c-promote-possible-types)
(progn
(when (not (eq c-promote-possible-types 'just-one))
- (c-add-type id-start (save-excursion
- (goto-char id-end)
- (c-backward-syntactic-ws)
- (point))))
+ (c-add-type id-start id-end))
(when (and c-record-type-identifiers id-range)
(c-record-type-id id-range))
(unless res
@@ -9255,6 +9327,7 @@
((eq name-res 'template)
;; A template is sometimes a type.
(goto-char id-end)
+ (setq pos (point))
(c-forward-syntactic-ws)
(setq res
(if (eq (char-after) ?\()
@@ -9280,6 +9353,7 @@
(when c-opt-type-modifier-key
(while (looking-at c-opt-type-modifier-key) ; e.g. "const", "volatile"
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)
(setq res t)))
@@ -9290,11 +9364,13 @@
(when c-opt-type-suffix-key ; e.g. "..."
(while (looking-at c-opt-type-suffix-key)
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)))
;; Skip any "WS" identifiers (e.g. "final" or "override" in C++)
(while (looking-at c-type-decl-suffix-ws-ids-key)
(goto-char (match-end 1))
+ (setq pos (point))
(c-forward-syntactic-ws)
(setq res t))
@@ -9318,8 +9394,9 @@
(progn
(goto-char (match-end 1))
(c-forward-syntactic-ws)
- (setq subres (c-forward-type))))
-
+ (setq subres (c-forward-type nil t))
+ (setq pos (point))))
+
(progn
;; If either operand certainly is a type then both are, but we
;; don't let the existence of the operator itself promote two
@@ -9354,9 +9431,11 @@
;; `nconc' doesn't mind that the tail of
;; `c-record-found-types' is t.
(nconc c-record-found-types
- c-record-type-identifiers))))
-
- (goto-char pos))))
+ c-record-type-identifiers)))))))
+
+ (goto-char pos)
+ (unless stop-at-end
+ (c-forward-syntactic-ws))
(when (and c-record-found-types (memq res '(known found)) id-range)
(setq c-record-found-types
@@ -9759,7 +9838,7 @@
;; (e.g. "," or ";" or "}").
(let ((here (point))
id-start id-end brackets-after-id paren-depth decorated
- got-init arglist double-double-quote)
+ got-init arglist double-double-quote pos)
(or limit (setq limit (point-max)))
(if (and
(< (point) limit)
@@ -9793,6 +9872,7 @@
(eq (char-after (1+ (point))) ?\"))
(setq double-double-quote t))
(goto-char (match-end 0))
+ (setq pos (point))
(c-forward-syntactic-ws limit)
(setq got-identifier t)
nil)
@@ -9805,7 +9885,10 @@
;; prefix only if it specifies a member pointer.
(progn
(setq id-start (point))
- (when (c-forward-name)
+ (when (c-forward-name t)
+ (setq pos (point))
+ (c-forward-syntactic-ws limit)
+
(if (save-match-data
(looking-at "\\(::\\)"))
;; We only check for a trailing "::" and
@@ -9834,10 +9917,12 @@
(setq id-start (point)))
(cond
((or got-identifier
- (c-forward-name))
- (save-excursion
- (c-backward-syntactic-ws)
- (setq id-end (point))))
+ (c-forward-name t))
+ (setq id-end
+ (or pos
+ (point)))
+ (c-forward-syntactic-ws limit)
+ t)
(accept-anon
(setq id-start nil id-end nil)
t)
@@ -10589,11 +10674,11 @@
(or got-identifier
(and (looking-at c-identifier-start)
(setq pos (point))
- (setq got-identifier (c-forward-name))
+ (setq got-identifier (c-forward-name t))
(save-excursion
- (c-backward-syntactic-ws)
(c-simple-skip-symbol-backward)
(setq identifier-start (point)))
+ (progn (c-forward-syntactic-ws) t)
(setq name-start pos))
(when (looking-at "[0-9]")
(setq got-number t)) ; We probably have an arithmetic expression.
@@ -10816,8 +10901,7 @@
type-start
(progn
(goto-char type-start)
- (c-forward-type)
- (c-backward-syntactic-ws)
+ (c-forward-type nil t)
(point)))))))))
;; Got a declaration of the form "foo bar (gnu);" or "bar
;; (gnu);" where we've recognized "bar" as the type and "gnu"
@@ -11141,8 +11225,7 @@
(space-after-type
(save-excursion
(goto-char type-start)
- (and (c-forward-type)
- (progn (c-backward-syntactic-ws) t)
+ (and (c-forward-type nil t)
(or (eolp)
(memq (char-after) '(?\ ?\t)))))))
(when (not (eq (not space-before-id)
> > I also have the actual fix to the above mentioned bug, #59234, which I
> > intend to commit to the release branch, and one other open bug (an
> > offshoot from bug #58883) which doesn't yet have a completed patch.
> > Do you have firm ideas, yet, of when you're going to start the pretest
> > cycle, such that non-pressing bugs would no longer be wanted in the
> > release branch?
> I hope we will have the first pretest in a week or so.
OK, thanks!
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2023-01-23 17:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-23 16:00 Consequent CC Mode fix to the release branch or to master? Alan Mackenzie
2023-01-23 16:46 ` Eli Zaretskii
2023-01-23 17:04 ` Alan Mackenzie [this message]
2023-01-23 17:09 ` Eli Zaretskii
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