Package: cc-mode;
Reported by: Michael Welsh Duggan <mwd <at> md5i.com>
Date: Sun, 13 Dec 2015 05:16:01 UTC
Severity: normal
Done: Alan Mackenzie <acm <at> muc.de>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: help-debbugs <at> gnu.org (GNU bug Tracking System) To: Michael Welsh Duggan <mwd <at> md5i.com> Subject: bug#22156: closed (Re: bug#22156: CC Mode 5.33 (C++/l); Strange end-of-buffer error) Date: Tue, 22 Dec 2015 16:38:02 +0000
[Message part 1 (text/plain, inline)]
Your bug report #22156: CC Mode 5.33 (C++/l); Strange end-of-buffer error which was filed against the cc-mode package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 22156 <at> debbugs.gnu.org. -- 22156: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=22156 GNU Bug Tracking System Contact help-debbugs <at> gnu.org with problems
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From: Alan Mackenzie <acm <at> muc.de> To: Michael Welsh Duggan <mwd <at> md5i.com> Cc: 22156-done <at> debbugs.gnu.org Subject: Re: bug#22156: CC Mode 5.33 (C++/l); Strange end-of-buffer error Date: Tue, 22 Dec 2015 16:39:56 +0000Hello, Michael. On Tue, Dec 22, 2015 at 01:13:38AM -0500, Michael Welsh Duggan wrote: > Alan Mackenzie <acm <at> muc.de> writes: [ .... ] > >> Emacs : GNU Emacs 25.1.50.1 (x86_64-pc-linux-gnu, X toolkit) > >> of 2015-11-26 > >> Package: CC Mode 5.33 (C++/l) > >> Buffer Style: SiLK > >> c-emacs-features: (pps-extended-state col-0-paren posix-char-classes > >> gen-string-delim gen-comment-delim syntax-properties 1-bit) > > [ Dump of CC Mode's state snipped, but appreciated. ] > > The cause was a simple coding error: after searching forward (for a > > closing >), c-forward-<>-arglist-recur failed to set point back to the > > starting place before trying the next possibility. > > Here is a patch which I hope fixes things. Please let me know whether > > or not it works satisfactorily. > I can confirm that this seems to fix the problem. Thanks. I've committed the fix (both to SourceForge and savannah emacs-25 branch) and am marking this bug as closed. > -- > Michael Welsh Duggan > (md5i <at> md5i.com) -- Alan Mackenzie (Nuremberg, Germany).
[Message part 3 (message/rfc822, inline)]
From: Michael Welsh Duggan <mwd <at> md5i.com> To: submit <at> debbugs.gnu.org Subject: CC Mode 5.33 (C++/l); Strange end-of-buffer error Date: Sun, 13 Dec 2015 00:15:42 -0500Using emacs -Q /tmp/foo.cpp to start a new file, type the following: struct foo<A<B, When you type the comma, you should get an "End of buffer" error. The error seems to be at the point following this in the backtrace: Debugger entered--returning value: nil c-syntactic-re-search-forward("[<;{},|+&-]\\|[>)]" nil t t) * c-forward-<>-arglist-recur(nil) * c-forward-<>-arglist-recur(nil) * c-forward-<>-arglist(nil) * c-forward-name() * c-forward-type(t) * #[(preceding-token-end context last-cast-end) "`\306\211\211\211\211\211\211\211\211\211\211\211\211\211\211\211\211 @3ABCDEFGHIJKLMN\307 \203C\310 \210\2028`O\306\211PQ\306R\311S!\204cT\312=\203\213\311\313!\203\213\314 U\315\216\311V!\203s\316E*\317\320!W\321WX\")P\212\322\320!\210`Q)\323\316!\211R\203\366T\324=\203\272C\325W\321WX\")=\203\272\311\326!\203\272\316\306ROb\210M\203\325\3273M\330=\203\325\212Lb\210\316Y\323 \210*MJLIKHPGRMOL`K\306\211BAP\203\210P\331Z\211[ZN*\203#\3163M\203QK\202QNQb\202\222\306JQNR\203WP\332Z\211[ZN*\203A\316BP\333Z\211[ZN*\205\222\316\211A\202\222P\332Z\211[ZN*\203i\316FP\333Z\211[ZN*\203{\316D\3163PCQb\202\222R\205\222R\316=?,\204CM\316=\203\261\311\\!\203\253\322\320!\210\202\235`K\202\233M\334=\203\276\316M\202\233M\204\312NK\202\233M\335=\203\233T\324=\203\233\212\306\211\211]^_Kb\210\336 \210`^\337\340!\341W\204*T\342=\203\232``\343\306x\341W\203!\344\306x\341W\203!\311a!\203!\341\225`Y\203!\316\202&`b\210\306)\203\232\345`^\"_\346\306x\341W\203\232`]\337\340!\341W\204zT\342=\203\232``\343\306x\341W\203q\344\306x\341W\203q\311a!\203q\341\225`Y\203q\316\202v`b\210\306)\203\232`LY\203\232\345`]\"_\232\203\232Lb\210\306\211MJLK,`\341\306\211\211\211\211\211\211\211\211\211\211\211bcdefghijkl`mOKb\210n\203\347o\347\232\203\347\306f\350=\203<mTm\306u\210\202<\311o!\203<T\324=\203\351\224\203``\352 \211j\203<`b\311\353!\203<\306j\306f\350=\203$mTm\306u\210\2026h\204/m\341Uh\316l\320\225b\210\310 \210\202\347m\341Vkj\204a\311p!\203a`\211`\203a\352 \211j\203a`b\311q!\203\300\306f\354=\203\201m\341V\203pmSm\306u\210\202j\314 U\355\216\311\356!*\203\241\3571\235\360`\320\"b\210\3160\202\246\210\202p\320\225b\210\316\203pg\204\271m\341U\203\271\341\224g\316\211i\202gm\320U\203ph\204pM\316=\204pJ\204\354D\204\354A\204\354n\203pr\204p\3611\371\362`\320\211#0\202\373\210\306\211`\203p`\206`Sf\354=\203pMeLd\306k\316\211jiKg\341mJ\334=\2031\316\2023J\211M\203DILHK\202LNLNKF\204UBFD\204^ADKO`b\210\316\203p\310 \210\202a\f\203{\311s!\204\224D\204\205A\203\350j\204\350l\204\350M\203\350MeLd\306k\316\211jiKg\341mJ\334=\203\267\316\202\271J\211M\203\312ILHK\202\322NLNKF\204\333BFD\204\344ADKO\f\203\311t!\203\212\341\225b\210\310 \210`L\323 M)\3632\354m\341V\203*\3641\362`\320m#b0\202!\210\202\"\210\365\3633\316=\"\210\311r\366=\2036\367\202@r\203?\370\202@\371!fj\203\345M\204RD\203al\204ak\204a\365\363\316\"\210k\203Ul\204UJ\204\216D\204\216A\204\2163\316=\204\216\212bb\210\323 \372>)\204UMeLd\306k\316\211jiKg\341mJ\334=\203\261\316\202\263J\211M\203\304ILHK\202\314NLNKF\204\325BFD\204\336ADKO\202UJ\203G`OU\203-\306f\373=\203%T\312=\204%3\316=\203\365\363\316\"\210\202-u\203-3\327=\203-\316@\365\363\316\"\210\202-\316@\365\363\316\"\210i\203\223l\204\223k\204\223\316@\365\363\316\"\210\202\223M\316=\203S\365\363\316\"\210`OU\203\223f\203\215r\374=\203wv\204pw\203\205M\375>\202\202r\366=\203\215M\376>\203\215\365\363\316\"\210\202\223\365\3633\"\210k\203 l\204 r\204 M\316=\204 J\204\311D\204\311A\204\311n\203 i\203\311\311x!\204 MeLd\306k\316\211jiKg\341mJ\334=\203\354\316\202\356J\211M\203\377ILHK\202NLNKF\204BFD\204ADKO\202Ul\2034k\204/i\2034\365\363\316\"\210M\203Ul\204Uk\204Ug\203Ugf\350=\203U\365\363\306\"\2103\203_\365\363\316\"\210j\203\347r\204\347\311y!\203\347k\203\335l\204\335i\204\335M\316=\204\335MeLd\306k\316\211jiKg\341mJ\334=\203\251\316\202\253J\211M\203\274ILHK\202\304NLNKF\204\315BFD\204\326ADKO\202\342g\203\347\365\363\316\"\210l\204\361k\204\375M\377>\203\375\365\363\316\"\210M\201\212>\203 \365\363\316\"\210T\324=\203re\203re\201\213>\204mdf\201\214=\203r\212dTb\210\310 \210\201\215 z\201\216\216\201\217{!\210\311|!+\204m\212dTb\210`\323 \210`}~\321\201\220~}#\200\"+\203r\365\363\316\"\210j\203\302h\203\235M\203\235f\204\216\311\201\221!\203\235r\204\235i\204\235\365\363\316\"\210g\204\252\311\201\221!\203\347M\330=\203\347r\201\222=\204\347\365\363\316\"\210\202\347r\203\347l\204\342r\374=\203\347w\204\347k\204\342i\203\347\365\363\316\"\210r\374=03.\212\201\205\224 \202eV\205\224 \202\206 `Sf\201>\205\224 \310 \210\311\201\223!\205\224 \306\211`u\210\310 \210`\311\203!\205[ \341\225`\201\224\224\204N \320\224\203F 3\204N M\201\225>\202K \311\204!?\205[ \311\205!?\206[ \341\225`X)\205\224 \202eV\205\224 \202Sb\210`\206=\206\224 \336 \210\337\340!\341W\203\204 \311\207!\202\224 `Sf\201\226>?\205\224 \201\227 ?)\203\274 \203\263 M\203\263 M\316=\204\263 \316YLb\210\323 \210)b\210\201\230\202V\n3\203Q\n@\203\376 J\334=\203\321 \316\202\323 J\211M\203\344 ILHK\202\354 NLNKF\204\365 BFD\204\376 ADr\374=\203'\n\311\201\231!\203'\n`\201\232 \210\211`\211\201\233\211\211T\201\234\210$+\210\203<\nM\203<\n\316Y\212Lb\210\323 \210*KF\204H\nE\205M\nFEBB\202V\n \n\306.\207" [c-record-type-identifiers c-record-ref-identifiers save-rec-ref-ids save-rec-type-ids new-style-auto cast-end nil c-forward-annotation c-forward-sws looking-at java-mode "@[A-Za-z0-9]+" match-data #[nil "\301\302\"\207" [save-match-data-internal set-match-data evaporate] 3] t match-string 1 intern-soft c-forward-keyword-clause c-forward-type c++-mode "auto" "[=(]" ids found c-decl-hangon-kwds c-typedef-decl-kwds c-typeless-decl-kwds prefix maybe c-backward-sws skip-syntax-backward "w_" 0 pike-mode "-!%&*+/<=>^|~[]()" "`" buffer-substring-no-properties ":~ \n \f" "\\<\\>" 40 3 c-forward-name "\\(::\\)" 41 #[nil "\301\302\"\207" [save-match-data-internal set-match-data evaporate] 3] "\\s(" (error) scan-sexps (error) ...] 21](1 nil nil) * apply(#[(preceding-token-end context last-cast-end) "`\306\211\211\211\211\211\211\211\211\211\211\211\211\211\211\211\211 @3ABCDEFGHIJKLMN\307 \203C\310 \210\2028`O\306\211PQ\306R\311S!\204cT\312=\203\213\311\313!\203\213\314 U\315\216\311V!\203s\316E*\317\320!W\321WX\")P\212\322\320!\210`Q)\323\316!\211R\203\366T\324=\203\272C\325W\321WX\")=\203\272\311\326!\203\272\316\306ROb\210M\203\325\3273M\330=\203\325\212Lb\210\316Y\323 \210*MJLIKHPGRMOL`K\306\211BAP\203\210P\331Z\211[ZN*\203#\3163M\203QK\202QNQb\202\222\306JQNR\203WP\332Z\211[ZN*\203A\316BP\333Z\211[ZN*\205\222\316\211A\202\222P\332Z\211[ZN*\203i\316FP\333Z\211[ZN*\203{\316D\3163PCQb\202\222R\205\222R\316=?,\204CM\316=\203\261\311\\!\203\253\322\320!\210\202\235`K\202\233M\334=\203\276\316M\202\233M\204\312NK\202\233M\335=\203\233T\324=\203\233\212\306\211\211]^_Kb\210\336 \210`^\337\340!\341W\204*T\342=\203\232``\343\306x\341W\203!\344\306x\341W\203!\311a!\203!\341\225`Y\203!\316\202&`b\210\306)\203\232\345`^\"_\346\306x\341W\203\232`]\337\340!\341W\204zT\342=\203\232``\343\306x\341W\203q\344\306x\341W\203q\311a!\203q\341\225`Y\203q\316\202v`b\210\306)\203\232`LY\203\232\345`]\"_\232\203\232Lb\210\306\211MJLK,`\341\306\211\211\211\211\211\211\211\211\211\211\211bcdefghijkl`mOKb\210n\203\347o\347\232\203\347\306f\350=\203<mTm\306u\210\202<\311o!\203<T\324=\203\351\224\203``\352 \211j\203<`b\311\353!\203<\306j\306f\350=\203$mTm\306u\210\2026h\204/m\341Uh\316l\320\225b\210\310 \210\202\347m\341Vkj\204a\311p!\203a`\211`\203a\352 \211j\203a`b\311q!\203\300\306f\354=\203\201m\341V\203pmSm\306u\210\202j\314 U\355\216\311\356!*\203\241\3571\235\360`\320\"b\210\3160\202\246\210\202p\320\225b\210\316\203pg\204\271m\341U\203\271\341\224g\316\211i\202gm\320U\203ph\204pM\316=\204pJ\204\354D\204\354A\204\354n\203pr\204p\3611\371\362`\320\211#0\202\373\210\306\211`\203p`\206`Sf\354=\203pMeLd\306k\316\211jiKg\341mJ\334=\2031\316\2023J\211M\203DILHK\202LNLNKF\204UBFD\204^ADKO`b\210\316\203p\310 \210\202a\f\203{\311s!\204\224D\204\205A\203\350j\204\350l\204\350M\203\350MeLd\306k\316\211jiKg\341mJ\334=\203\267\316\202\271J\211M\203\312ILHK\202\322NLNKF\204\333BFD\204\344ADKO\f\203\311t!\203\212\341\225b\210\310 \210`L\323 M)\3632\354m\341V\203*\3641\362`\320m#b0\202!\210\202\"\210\365\3633\316=\"\210\311r\366=\2036\367\202@r\203?\370\202@\371!fj\203\345M\204RD\203al\204ak\204a\365\363\316\"\210k\203Ul\204UJ\204\216D\204\216A\204\2163\316=\204\216\212bb\210\323 \372>)\204UMeLd\306k\316\211jiKg\341mJ\334=\203\261\316\202\263J\211M\203\304ILHK\202\314NLNKF\204\325BFD\204\336ADKO\202UJ\203G`OU\203-\306f\373=\203%T\312=\204%3\316=\203\365\363\316\"\210\202-u\203-3\327=\203-\316@\365\363\316\"\210\202-\316@\365\363\316\"\210i\203\223l\204\223k\204\223\316@\365\363\316\"\210\202\223M\316=\203S\365\363\316\"\210`OU\203\223f\203\215r\374=\203wv\204pw\203\205M\375>\202\202r\366=\203\215M\376>\203\215\365\363\316\"\210\202\223\365\3633\"\210k\203 l\204 r\204 M\316=\204 J\204\311D\204\311A\204\311n\203 i\203\311\311x!\204 MeLd\306k\316\211jiKg\341mJ\334=\203\354\316\202\356J\211M\203\377ILHK\202NLNKF\204BFD\204ADKO\202Ul\2034k\204/i\2034\365\363\316\"\210M\203Ul\204Uk\204Ug\203Ugf\350=\203U\365\363\306\"\2103\203_\365\363\316\"\210j\203\347r\204\347\311y!\203\347k\203\335l\204\335i\204\335M\316=\204\335MeLd\306k\316\211jiKg\341mJ\334=\203\251\316\202\253J\211M\203\274ILHK\202\304NLNKF\204\315BFD\204\326ADKO\202\342g\203\347\365\363\316\"\210l\204\361k\204\375M\377>\203\375\365\363\316\"\210M\201\212>\203 \365\363\316\"\210T\324=\203re\203re\201\213>\204mdf\201\214=\203r\212dTb\210\310 \210\201\215 z\201\216\216\201\217{!\210\311|!+\204m\212dTb\210`\323 \210`}~\321\201\220~}#\200\"+\203r\365\363\316\"\210j\203\302h\203\235M\203\235f\204\216\311\201\221!\203\235r\204\235i\204\235\365\363\316\"\210g\204\252\311\201\221!\203\347M\330=\203\347r\201\222=\204\347\365\363\316\"\210\202\347r\203\347l\204\342r\374=\203\347w\204\347k\204\342i\203\347\365\363\316\"\210r\374=03.\212\201\205\224 \202eV\205\224 \202\206 `Sf\201>\205\224 \310 \210\311\201\223!\205\224 \306\211`u\210\310 \210`\311\203!\205[ \341\225`\201\224\224\204N \320\224\203F 3\204N M\201\225>\202K \311\204!?\205[ \311\205!?\206[ \341\225`X)\205\224 \202eV\205\224 \202Sb\210`\206=\206\224 \336 \210\337\340!\341W\203\204 \311\207!\202\224 `Sf\201\226>?\205\224 \201\227 ?)\203\274 \203\263 M\203\263 M\316=\204\263 \316YLb\210\323 \210)b\210\201\230\202V\n3\203Q\n@\203\376 J\334=\203\321 \316\202\323 J\211M\203\344 ILHK\202\354 NLNKF\204\365 BFD\204\376 ADr\374=\203'\n\311\201\231!\203'\n`\201\232 \210\211`\211\201\233\211\211T\201\234\210$+\210\203<\nM\203<\n\316Y\212Lb\210\323 \210*KF\204H\nE\205M\nFEBB\202V\n \n\306.\207" [c-record-type-identifiers c-record-ref-identifiers save-rec-ref-ids save-rec-type-ids new-style-auto cast-end nil c-forward-annotation c-forward-sws looking-at java-mode "@[A-Za-z0-9]+" match-data #[nil "\301\302\"\207" [save-match-data-internal set-match-data evaporate] 3] t match-string 1 intern-soft c-forward-keyword-clause c-forward-type c++-mode "auto" "[=(]" ids found c-decl-hangon-kwds c-typedef-decl-kwds c-typeless-decl-kwds prefix maybe c-backward-sws skip-syntax-backward "w_" 0 pike-mode "-!%&*+/<=>^|~[]()" "`" buffer-substring-no-properties ":~ \n \f" "\\<\\>" 40 3 c-forward-name "\\(::\\)" 41 #[nil "\301\302\"\207" [save-match-data-internal set-match-data evaporate] 3] "\\s(" (error) scan-sexps (error) ...] 21] (1 nil nil)) * c-forward-decl-or-cast-1(1 nil nil) c-just-after-func-arglist-p(1) c-guess-basic-syntax() c-indent-line() c-electric-semi&comma(nil) funcall-interactively(c-electric-semi&comma nil) call-interactively(c-electric-semi&comma nil nil) command-execute(c-electric-semi&comma) Emacs : GNU Emacs 25.1.50.1 (x86_64-pc-linux-gnu, X toolkit) of 2015-11-26 Package: CC Mode 5.33 (C++/l) Buffer Style: SiLK c-emacs-features: (pps-extended-state col-0-paren posix-char-classes gen-string-delim gen-comment-delim syntax-properties 1-bit) current state: ============== (setq c-basic-offset 4 c-comment-only-line-offset 0 c-indent-comment-alist '((anchored-comment column . 0) (end-block space . 1) (cpp-end-block space . 2)) c-indent-comments-syntactically-p nil c-block-comment-prefix "* " c-comment-prefix-regexp '((pike-mode . "//+!?\\|\\**") (awk-mode . "#+") (other . "//+\\|\\**")) c-doc-comment-style '((java-mode . javadoc) (pike-mode . autodoc) (c-mode . gtkdoc)) c-cleanup-list '(scope-operator) c-hanging-braces-alist '((brace-list-open) (brace-entry-open) (statement-cont) (substatement-open after) (block-close . c-snug-do-while) (extern-lang-open after) (namespace-open after) (module-open after) (composition-open after) (inexpr-class-open after) (inexpr-class-close before) (arglist-cont-nonempty)) c-hanging-colons-alist nil c-hanging-semi&comma-criteria '(c-semi&comma-inside-parenlist) c-backslash-column 48 c-backslash-max-column 72 c-special-indent-hook nil c-label-minimum-indentation 1 c-offsets-alist '((inexpr-class . +) (inexpr-statement . +) (lambda-intro-cont . +) (inlambda . c-lineup-inexpr-block) (template-args-cont c-lineup-template-args +) (incomposition . +) (inmodule . +) (innamespace . 0) (inextern-lang . 0) (composition-close . 0) (module-close . 0) (namespace-close . 0) (extern-lang-close . 0) (composition-open . 0) (module-open . 0) (namespace-open . 0) (extern-lang-open . 0) (objc-method-call-cont c-lineup-ObjC-method-call-colons c-lineup-ObjC-method-call + ) (objc-method-args-cont . c-lineup-ObjC-method-args) (objc-method-intro . [0]) (friend . 0) (cpp-define-intro c-lineup-cpp-define +) (cpp-macro-cont . +) (cpp-macro . [0]) (inclass . +) (stream-op . c-lineup-streamop) (arglist-cont-nonempty c-lineup-gcc-asm-reg c-lineup-arglist ) (arglist-cont c-lineup-gcc-asm-reg 0) (comment-intro c-lineup-knr-region-comment c-lineup-comment ) (catch-clause . 0) (else-clause . 0) (do-while-closure . 0) (access-label . /) (case-label . *) (substatement . +) (statement-case-intro . *) (statement . 0) (brace-entry-open . 0) (brace-list-entry . 0) (brace-list-intro . +) (brace-list-close . 0) (block-close . 0) (block-open . 0) (inher-cont . c-lineup-multi-inher) (inher-intro . +) (member-init-cont . c-lineup-multi-inher) (member-init-intro . +) (annotation-var-cont . +) (annotation-top-cont . 0) (topmost-intro . 0) (knr-argdecl . 0) (func-decl-cont . +) (inline-close . 0) (class-close . 0) (class-open . 0) (defun-block-intro . +) (defun-close . 0) (defun-open . 0) (c . c-lineup-C-comments) (string . c-lineup-dont-change) (topmost-intro-cont . c-lineup-topmost-intro-cont) (brace-list-open . 0) (inline-open . 0) (arglist-close . +) (arglist-intro . +) (statement-cont . c-lineup-math) (statement-case-open . *) (label . *) (substatement-label . 2) (substatement-open . 0) (knr-argdecl-intro . +) (statement-block-intro . +) ) c-buffer-is-cc-mode 'c++-mode c-tab-always-indent t c-syntactic-indentation t c-syntactic-indentation-in-macros t c-ignore-auto-fill '(string cpp code) c-auto-align-backslashes t c-backspace-function 'backward-delete-char-untabify c-delete-function 'delete-char c-electric-pound-behavior nil c-default-style '((java-mode . "java") (awk-mode . "awk") (other . "gnu")) c-enable-xemacs-performance-kludge-p nil c-old-style-variable-behavior nil defun-prompt-regexp nil tab-width 8 comment-column 32 parse-sexp-ignore-comments t parse-sexp-lookup-properties t auto-fill-function nil comment-multi-line t comment-start-skip "\\(//+\\|/\\*+\\)\\s *" fill-prefix nil fill-column 70 paragraph-start "[ ]*\\(//+\\|\\**\\)[ ]*$\\|^\f" adaptive-fill-mode t adaptive-fill-regexp "[ ]*\\(//+\\|\\**\\)[ ]*\\([ ]*\\([-–!|#%;>*·•‣⁃◦]+[ ]*\\)*\\)" ) -- Michael Welsh Duggan (md5i <at> md5i.com)
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.