GNU bug report logs - #36241
26.2; documentation error in elisp/Regexp-Functions node

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Mandar Mitra <mandar.mitra <at> gmail.com>
Subject: bug#36241: closed (Re: bug#36241: 26.2; documentation error in
 elisp/Regexp-Functions node)
Date: Sun, 16 Jun 2019 09:56:01 +0000

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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

[Message part 2 (message/rfc822, inline)]

From: Juanma Barranquero <lekktu <at> gmail.com>
To: Mandar Mitra <mandar.mitra <at> gmail.com>
Cc: 36241-done <at> debbugs.gnu.org
Subject: Re: bug#36241: 26.2;
 documentation error in elisp/Regexp-Functions node
Date: Sun, 16 Jun 2019 11:54:24 +0200

Ok, I backported the fix already in the master branch, so it should be
fixed now.

Thanks

[Message part 3 (message/rfc822, inline)]

From: Mandar Mitra <mandar.mitra <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 26.2; documentation error in elisp/Regexp-Functions node
Date: Sun, 16 Jun 2019 14:21:46 +0530

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''

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