* bug#15767: 24.3; [patch] electric-indent-mode bug @ 2013-10-30 23:03 Dave Abrahams 2013-10-31 17:06 ` Stefan Monnier ` (2 more replies) 0 siblings, 3 replies; 7+ messages in thread From: Dave Abrahams @ 2013-10-30 23:03 UTC (permalink / raw) To: 15767 [-- Attachment #1: Type: text/plain, Size: 450 bytes --] 1. emacs -Q 2. eval the following: (electric-indent-mode) (electric-layout-mode) (setq electric-indent-chars (append "{}" electric-indent-chars)) (setq electric-layout-rules '((?\{ . after) (?\} . before))) 3. type `f o o {' Result expected: a buffer containing ----- schnipp ----- foo { ----- schnapp ----- Result received: a buffer containing ----- schnipp ----- foo{ ----- schnapp ----- Patch is enclosed that fixes the problem. [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #2: electric.el.patch --] [-- Type: text/x-patch, Size: 1548 bytes --] diff --git a/lisp/electric.el b/lisp/electric.el index 58b8e10..e4257b2 100644 --- a/lisp/electric.el +++ b/lisp/electric.el @@ -212,7 +212,7 @@ point right after that char, and it should return t to cause indentation, ;; electric-pair-mode wrapping a region with a pair of parens. ;; There might be a way to get it working by analyzing buffer-undo-list, but ;; it looks challenging. - (let (pos) + (let (pos line-beginning-pos) (when (and electric-indent-mode ;; Don't reindent while inserting spaces at beginning of line. @@ -221,6 +221,7 @@ point right after that char, and it should return t to cause indentation, (setq pos (electric--after-char-pos)) (save-excursion (goto-char pos) + (setq line-beginning-pos (line-beginning-position)) (let ((act (or (run-hook-with-args-until-success 'electric-indent-functions last-command-event) @@ -231,7 +232,7 @@ point right after that char, and it should return t to cause indentation, (unless (eq act 'do-indent) (nth 8 (syntax-ppss)))))))) ;; For newline, we want to reindent both lines and basically behave like ;; reindent-then-newline-and-indent (whose code we hence copied). - (when (< (1- pos) (line-beginning-position)) + (when (< (1- pos) line-beginning-pos) (let ((before (copy-marker (1- pos) t))) (save-excursion (unless (memq indent-line-function [-- Attachment #3: Type: text/plain, Size: 8779 bytes --] In GNU Emacs 24.3.1 (x86_64-apple-darwin11.4.2, Carbon Version 1.6.0 AppKit 1138.51) of 2013-10-27 on Yukikaze.local Windowing system distributor `Apple Inc.', version 10.9.0 Configured using: `configure '--with-mac' '--enable-mac-app=/Users/xin/Documents/emacs-mac-port/build' '--prefix=/Users/xin/Documents/emacs-mac-port/build'' Important settings: locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: Emacs-Lisp Minor modes in effect: electric-layout-mode: t electric-pair-mode: t electric-indent-mode: t shell-dirtrack-mode: t recentf-mode: t diff-auto-refine-mode: t global-auto-complete-mode: t auto-complete-mode: t override-global-mode: t workgroups-mode: t nxhtml-menu-mode: t yas-global-mode: t yas-minor-mode: t me-minor-mode: t which-function-mode: t show-paren-mode: t server-mode: t global-auto-revert-mode: t display-time-mode: t delete-selection-mode: t tooltip-mode: t mac-mouse-wheel-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: C-e C-p C-p C-p C-p C-p C-p C-p C-p C-p C-b SPC l i n e - b e g g <backspace> i n - p o s C-b C-b C-b C-b i n g b b <backspace> <backspace> <backspace> <backspace> <backspace> <backspace> n n i n g C-n C-e C-p C-e C-, C-, C-, C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-e C-n C-b C-SPC C-, C-, C-, C-b M-w C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-e C-n C-n C-n C-n C-n C-n C-e <return> <tab> ( s e t q SPC l i n e - b e M-/ SPC C-y C-e C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-, C-, C-, <backspace> C-. C-. C-. C-d <backspace> <backspace> <backspace> <backspace> <backspace> C-x C-s C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-e C-p C-p C-e C-n C-x C-e <C-return> C-p C-e C-n <backspace> <backspace> <backspace> <backspace> SPC { <C-return> C-SPC C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-g C-g C-g M-! g i t SPC d i f f <return> <C-return> C-s e l e C-p C-n C-n C-s e l e c t r i c C-a C-SPC C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n M-w <C-return> C-x C-b C-x C-b M-x e m a v <backspace> c - <backspace> <backspace> <backspace> <backspace> <backspace> <backspace> r e p o r t - e m <tab> <return> Recent messages: Mark set Saving file /Users/dave/src/emacs-mac-port/lisp/electric.el... 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* bug#15767: 24.3; [patch] electric-indent-mode bug 2013-10-30 23:03 bug#15767: 24.3; [patch] electric-indent-mode bug Dave Abrahams @ 2013-10-31 17:06 ` Stefan Monnier 2013-11-01 3:27 ` Dave Abrahams 2013-11-04 20:04 ` Stefan Monnier [not found] ` <handler.15767.D15767.138359548417885.notifdone@debbugs.gnu.org> 2 siblings, 1 reply; 7+ messages in thread From: Stefan Monnier @ 2013-10-31 17:06 UTC (permalink / raw) To: Dave Abrahams; +Cc: 15767 > 1. emacs -Q > 2. eval the following: > (electric-indent-mode) > (electric-layout-mode) > (setq electric-indent-chars (append "{}" electric-indent-chars)) > (setq electric-layout-rules '((?\{ . after) (?\} . before))) > 3. type `f o o {' > Result expected: a buffer containing > ----- schnipp ----- > foo { > ----- schnapp ----- > Result received: a buffer containing > ----- schnipp ----- > foo{ > ----- schnapp ----- I must be missing something: - your patch does not seem to make any difference to your test case. - I don't understand why you'd expect `f o o {' to end up inserting a space between foo and the open brace. Stefan ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#15767: 24.3; [patch] electric-indent-mode bug 2013-10-31 17:06 ` Stefan Monnier @ 2013-11-01 3:27 ` Dave Abrahams 0 siblings, 0 replies; 7+ messages in thread From: Dave Abrahams @ 2013-11-01 3:27 UTC (permalink / raw) To: Stefan Monnier; +Cc: 15767@debbugs.gnu.org Sorry, the test case is wrong; you're supposed to type `f o o SPC {' Sent from my illudium Q-36 explosive space modulator On Oct 31, 2013, at 10:06 AM, Stefan Monnier <monnier@iro.umontreal.ca> wrote: >> 1. emacs -Q >> 2. eval the following: > >> (electric-indent-mode) >> (electric-layout-mode) >> (setq electric-indent-chars (append "{}" electric-indent-chars)) >> (setq electric-layout-rules '((?\{ . after) (?\} . before))) > >> 3. type `f o o {' > >> Result expected: a buffer containing >> ----- schnipp ----- >> foo { > >> ----- schnapp ----- > >> Result received: a buffer containing >> ----- schnipp ----- >> foo{ > >> ----- schnapp ----- > > I must be missing something: > - your patch does not seem to make any difference to your test case. > - I don't understand why you'd expect `f o o {' to end up inserting > a space between foo and the open brace. > > > Stefan ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#15767: 24.3; [patch] electric-indent-mode bug 2013-10-30 23:03 bug#15767: 24.3; [patch] electric-indent-mode bug Dave Abrahams 2013-10-31 17:06 ` Stefan Monnier @ 2013-11-04 20:04 ` Stefan Monnier [not found] ` <handler.15767.D15767.138359548417885.notifdone@debbugs.gnu.org> 2 siblings, 0 replies; 7+ messages in thread From: Stefan Monnier @ 2013-11-04 20:04 UTC (permalink / raw) To: Dave Abrahams; +Cc: 15767-done > (electric-indent-mode) > (electric-layout-mode) > (setq electric-indent-chars (append "{}" electric-indent-chars)) > (setq electric-layout-rules '((?\{ . after) (?\} . before))) > 3. type `f o o SPC {' Thanks. Your patch defeated a useful case, so I replaced it with the one below, Stefan --- lisp/electric.el 2013-10-07 18:51:26 +0000 +++ lisp/electric.el 2013-11-04 20:01:20 +0000 @@ -251,9 +251,10 @@ ;; whereas we need `move after insertion', so we do the ;; save/restore by hand. (goto-char before) + (when (eolp) ;; Remove the trailing whitespace after indentation because ;; indentation may (re)introduce the whitespace. - (delete-horizontal-space t)))) + (delete-horizontal-space t))))) (unless (or (memq indent-line-function '(indent-to-left-margin)) (and electric-indent-inhibit (> pos (line-beginning-position)))) ^ permalink raw reply [flat|nested] 7+ messages in thread
[parent not found: <handler.15767.D15767.138359548417885.notifdone@debbugs.gnu.org>]
* bug#15767: closed (Re: bug#15767: 24.3; [patch] electric-indent-mode bug) [not found] ` <handler.15767.D15767.138359548417885.notifdone@debbugs.gnu.org> @ 2013-11-05 5:06 ` Dave Abrahams 2013-11-05 15:44 ` Stefan Monnier 0 siblings, 1 reply; 7+ messages in thread From: Dave Abrahams @ 2013-11-05 5:06 UTC (permalink / raw) To: 15767 [-- Attachment #1: Type: text/plain, Size: 13792 bytes --] On Nov 4, 2013, at 12:05 PM, GNU bug Tracking System <help-debbugs@gnu.org> wrote: > Your bug report > > #15767: 24.3; [patch] electric-indent-mode bug > > which was filed against the emacs package, has been closed. > > The explanation is attached below, along with your original report. > If you require more details, please reply to 15767@debbugs.gnu.org. > > -- > 15767: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15767 > GNU Bug Tracking System > Contact help-debbugs@gnu.org with problems > > From: Stefan Monnier <monnier@iro.umontreal.ca> > Subject: Re: bug#15767: 24.3; [patch] electric-indent-mode bug > Date: November 4, 2013 at 12:04:31 PM PST > To: Dave Abrahams <dave@boostpro.com> > Cc: 15767-done@debbugs.gnu.org > > >> (electric-indent-mode) >> (electric-layout-mode) >> (setq electric-indent-chars (append "{}" electric-indent-chars)) >> (setq electric-layout-rules '((?\{ . after) (?\} . before))) > >> 3. type `f o o SPC {' > > Thanks. Your patch defeated a useful case, so I replaced it with the > one below, Well, the problem I see is that you left the call to line-beginning-position where it was in the original call. At that point, point may be on a different line than it started on, so it’s actually getting information about the wrong line. It’s possible that your patch somehow makes everything work out, but leaving the call to line-beginning-position where it is seems at best fragile to me. > > Stefan > > > --- lisp/electric.el 2013-10-07 18:51:26 +0000 > +++ lisp/electric.el 2013-11-04 20:01:20 +0000 > @@ -251,9 +251,10 @@ > ;; whereas we need `move after insertion', so we do the > ;; save/restore by hand. > (goto-char before) > + (when (eolp) > ;; Remove the trailing whitespace after indentation because > ;; indentation may (re)introduce the whitespace. > - (delete-horizontal-space t)))) > + (delete-horizontal-space t))))) > (unless (or (memq indent-line-function '(indent-to-left-margin)) > (and electric-indent-inhibit > (> pos (line-beginning-position)))) > > > > > From: Dave Abrahams <dave@boostpro.com> > Subject: 24.3; [patch] electric-indent-mode bug > Date: October 30, 2013 at 4:03:34 PM PDT > To: bug-gnu-emacs@gnu.org > > > > 1. emacs -Q > 2. eval the following: > > (electric-indent-mode) > (electric-layout-mode) > (setq electric-indent-chars (append "{}" electric-indent-chars)) > (setq electric-layout-rules '((?\{ . after) (?\} . before))) > > 3. type `f o o {' > > Result expected: a buffer containing > ----- schnipp ----- > foo { > > ----- schnapp ----- > > Result received: a buffer containing > ----- schnipp ----- > foo{ > > ----- schnapp ----- > > Patch is enclosed that fixes the problem. > > > diff --git a/lisp/electric.el b/lisp/electric.el > index 58b8e10..e4257b2 100644 > --- a/lisp/electric.el > +++ b/lisp/electric.el > @@ -212,7 +212,7 @@ point right after that char, and it should return t to cause indentation, > ;; electric-pair-mode wrapping a region with a pair of parens. > ;; There might be a way to get it working by analyzing buffer-undo-list, but > ;; it looks challenging. > - (let (pos) > + (let (pos line-beginning-pos) > (when (and > electric-indent-mode > ;; Don't reindent while inserting spaces at beginning of line. > @@ -221,6 +221,7 @@ point right after that char, and it should return t to cause indentation, > (setq pos (electric--after-char-pos)) > (save-excursion > (goto-char pos) > + (setq line-beginning-pos (line-beginning-position)) > (let ((act (or (run-hook-with-args-until-success > 'electric-indent-functions > last-command-event) > @@ -231,7 +232,7 @@ point right after that char, and it should return t to cause indentation, > (unless (eq act 'do-indent) (nth 8 (syntax-ppss)))))))) > ;; For newline, we want to reindent both lines and basically behave like > ;; reindent-then-newline-and-indent (whose code we hence copied). > - (when (< (1- pos) (line-beginning-position)) > + (when (< (1- pos) line-beginning-pos) > (let ((before (copy-marker (1- pos) t))) > (save-excursion > (unless (memq indent-line-function > > > > In GNU Emacs 24.3.1 (x86_64-apple-darwin11.4.2, Carbon Version 1.6.0 AppKit 1138.51) > of 2013-10-27 on Yukikaze.local > Windowing system distributor `Apple Inc.', version 10.9.0 > Configured using: > `configure '--with-mac' > '--enable-mac-app=/Users/xin/Documents/emacs-mac-port/build' > '--prefix=/Users/xin/Documents/emacs-mac-port/build'' > > Important settings: > locale-coding-system: utf-8-unix > default enable-multibyte-characters: t > > Major mode: Emacs-Lisp > > Minor modes in effect: > electric-layout-mode: t > electric-pair-mode: t > electric-indent-mode: t > shell-dirtrack-mode: t > recentf-mode: t > diff-auto-refine-mode: t > global-auto-complete-mode: t > auto-complete-mode: t > override-global-mode: t > workgroups-mode: t > nxhtml-menu-mode: t > yas-global-mode: t > yas-minor-mode: t > me-minor-mode: t > which-function-mode: t > show-paren-mode: t > server-mode: t > global-auto-revert-mode: t > display-time-mode: t > delete-selection-mode: t > tooltip-mode: t > mac-mouse-wheel-mode: t > menu-bar-mode: t > file-name-shadow-mode: t > global-font-lock-mode: t > font-lock-mode: t > auto-composition-mode: t > auto-encryption-mode: t > auto-compression-mode: t > line-number-mode: t > transient-mark-mode: t > > Recent input: > C-e C-p C-p C-p C-p C-p C-p C-p C-p C-p C-b SPC l i > n e - b e g g <backspace> i n - p o s C-b C-b C-b C-b > i n g b b <backspace> <backspace> <backspace> <backspace> > <backspace> <backspace> n n i n g C-n C-e C-p C-e C-, > C-, C-, C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n > C-n C-n C-n C-n C-n C-n C-n C-e C-n C-b C-SPC C-, C-, > C-, C-b M-w C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p > C-p C-p C-p C-p C-p C-p C-p C-e C-n C-n C-n C-n C-n > C-n C-e <return> <tab> ( s e t q SPC l i n e - b e > M-/ SPC C-y C-e C-n C-n C-n C-n C-n C-n C-n C-n C-n > C-n C-n C-, C-, C-, <backspace> C-. C-. C-. C-d <backspace> > <backspace> <backspace> <backspace> <backspace> C-x > C-s C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n > C-n C-n C-n C-n C-n C-n C-n C-n C-n C-e C-p C-p C-e > C-n C-x C-e <C-return> C-p C-e C-n <backspace> <backspace> > <backspace> <backspace> SPC { <C-return> C-SPC C-p > C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p > C-p C-g C-g C-g M-! g i t SPC d i f f <return> <C-return> > C-s e l e C-p C-n C-n C-s e l e c t r i c C-a C-SPC > C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n > C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n > C-n C-n C-n C-n M-w <C-return> C-x C-b C-x C-b M-x > e m a v <backspace> c - <backspace> <backspace> <backspace> > <backspace> <backspace> <backspace> r e p o r t - e > m <tab> <return> > > Recent messages: > Mark set > Saving file /Users/dave/src/emacs-mac-port/lisp/electric.el... > Wrote /Users/dave/src/emacs-mac-port/lisp/electric.el > electric-indent-post-self-insert-function > Mark set > Quit [3 times] > Mark saved where 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files text-properties overlay sha1 md5 base64 format > env code-pages mule custom widget hashtable-print-readable backquote mac > multi-tty make-network-process emacs) > > [-- Attachment #2: Type: text/html, Size: 19230 bytes --] ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#15767: closed (Re: bug#15767: 24.3; [patch] electric-indent-mode bug) 2013-11-05 5:06 ` bug#15767: closed (Re: bug#15767: 24.3; [patch] electric-indent-mode bug) Dave Abrahams @ 2013-11-05 15:44 ` Stefan Monnier 2013-11-05 15:54 ` Dave Abrahams 0 siblings, 1 reply; 7+ messages in thread From: Stefan Monnier @ 2013-11-05 15:44 UTC (permalink / raw) To: Dave Abrahams; +Cc: 15767 > Well, the problem I see is that you left the call to line-beginning-position > where it was in the original call. At that point, point may be > on a different line than it started on, so it’s actually getting information > about the wrong line. It’s possible that your patch somehow makes > everything work out, but leaving the call to line-beginning-position where > it is seems at best fragile to me. On the contrary, moving the call like you did was wrong, IMO. The test against line-beginning-position is meant to check if pos is on a previous line, in which case we also need to reindent that previous line, whereas with your patch it reduces to just check if pos is at (bolp) which is not as interesting (tho it will often work as well for the newline case). Stefan ^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#15767: closed (Re: bug#15767: 24.3; [patch] electric-indent-mode bug) 2013-11-05 15:44 ` Stefan Monnier @ 2013-11-05 15:54 ` Dave Abrahams 0 siblings, 0 replies; 7+ messages in thread From: Dave Abrahams @ 2013-11-05 15:54 UTC (permalink / raw) To: Stefan Monnier; +Cc: 15767@debbugs.gnu.org Ok thanks for making it right then! Sent from my moss-covered three-handled family gradunza On Nov 5, 2013, at 7:44 AM, Stefan Monnier <monnier@iro.umontreal.ca> wrote: >> Well, the problem I see is that you left the call to line-beginning-position >> where it was in the original call. At that point, point may be >> on a different line than it started on, so it’s actually getting information >> about the wrong line. It’s possible that your patch somehow makes >> everything work out, but leaving the call to line-beginning-position where >> it is seems at best fragile to me. > > On the contrary, moving the call like you did was wrong, IMO. The test > against line-beginning-position is meant to check if pos is on > a previous line, in which case we also need to reindent that previous > line, whereas with your patch it reduces to just check if pos is at > (bolp) which is not as interesting (tho it will often work as well for > the newline case). > > > Stefan ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-11-05 15:54 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-10-30 23:03 bug#15767: 24.3; [patch] electric-indent-mode bug Dave Abrahams 2013-10-31 17:06 ` Stefan Monnier 2013-11-01 3:27 ` Dave Abrahams 2013-11-04 20:04 ` Stefan Monnier [not found] ` <handler.15767.D15767.138359548417885.notifdone@debbugs.gnu.org> 2013-11-05 5:06 ` bug#15767: closed (Re: bug#15767: 24.3; [patch] electric-indent-mode bug) Dave Abrahams 2013-11-05 15:44 ` Stefan Monnier 2013-11-05 15:54 ` Dave Abrahams
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