GNU bug report logs -
#36241
26.2; documentation error in elisp/Regexp-Functions node
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Reported by: Mandar Mitra <mandar.mitra <at> gmail.com>
Date: Sun, 16 Jun 2019 08:53:02 UTC
Severity: normal
Found in version 26.2
Done: Juanma Barranquero <lekktu <at> gmail.com>
Bug is archived. No further changes may be made.
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Your bug report
#36241: 26.2; documentation error in elisp/Regexp-Functions node
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 36241 <at> debbugs.gnu.org.
--
36241: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=36241
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
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On Sun, Jun 16, 2019 at 10:53 AM Mandar Mitra <mandar.mitra <at> gmail.com> wrote:
> The expressions on the third last line and the last line should be (car parens) and (cdr parens), no?
Yes, thanks.
It was fixed in the sources a while ago and it's already correct in
26.2.90, the current pretest release for 26.3.
You can download a source tarball of 26.2.90 here:
https://alpha.gnu.org/gnu/emacs/pretest/
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The documentation under "Function: regexp-opt" says:
The resulting regexp of regexp-opt is equivalent to but usually more efficient than that of a simplified version:
(defun simplified-regexp-opt (strings &optional paren)
(let ((parens
(cond
((stringp paren) (cons paren "\\)"))
((eq paren 'words) '("\\<\\(" . "\\)\\>"))
((eq paren 'symbols) '("\\_<\\(" . "\\)\\_>"))
((null paren) '("\\(?:" . "\\)"))
(t '("\\(" . "\\)")))))
(concat (car paren) ;; BUG: should be parens, not paren?
(mapconcat 'regexp-quote strings "\\|")
(cdr paren)))) ;; BUG: should be parens, not paren?
---------------------------------------------------------------------------
The expressions on the third last line and the last line should be (car parens) and (cdr parens), no?
---------------------------------------------------------------------------
In GNU Emacs 26.2 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
of 2019-04-13 built on lgw01-amd64-060
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Linux Mint 19 Tara
Recent messages:
Describe-Bindings...
Type M-x delete-other-windows to delete the help window, C-M-v to scroll help.
Quit [2 times]
Describe-Function...
No library info.el in search path
Type M-x delete-other-windows to delete the help window.
Fill column set to 75 (was 70)
Invalid face reference: info-menu-5 [3 times]
Mark set
Invalid face reference: info-menu-5 [14 times]
Configured using:
'configure --build=x86_64-linux-gnu --prefix=/usr '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' --sysconfdir=/etc --localstatedir=/var --disable-silent-rules '--libdir=${prefix}/lib/x86_64-linux-gnu' '--libexecdir=${prefix}/lib/x86_64-linux-gnu' --disable-maintainer-mode --disable-dependency-tracking --prefix=/usr --sharedstatedir=/var/lib --program-suffix=26 --with-modules --with-file-notification=inotify --with-mailutils --with-x=yes --with-x-toolkit=gtk3 --with-xwidgets --with-lcms2 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/emacs26-CYbeHB/emacs26-26.2~1.gitfd1b34b=. -fstack-protector-strong -Wformat -Werror=format-security -no-pie' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro -no-pie''
This bug report was last modified 5 years and 336 days ago.
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