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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: Errors indicated by ineffective backslashes in string literals
Date: Sat, 16 Mar 2019 14:25:22 -0400	[thread overview]
Message-ID: <jwvmulu65q9.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: D2E71D4B-FBCE-42BA-B937-DF5350DF7C8C@acm.org

> Sorry to bother you again, but while trying to get a better understanding of
> regexp usage and errors I found several ineffective backslashes in string
> literals (like "\.") and decided to do something about them.

I went through something similar "recently" and added the corresponding
highlighting in elisp-mode (see elisp--font-lock-backslash in lisp-mode.el).

> -     (directory-files-recursively store-dir "\.gpg$"))))
> +     (directory-files-recursively store-dir "\\.gpg$"))))
                                                      ^
should be \\'

[ Yes, I know it's unrelated, but it's another common (minor) error.  ]

> -		     (if file (replace-regexp-in-string "\.pdf$" ".ps" file)
> +		     (if file (replace-regexp-in-string "\\.pdf$" ".ps" file)
                                                               ^
Here's another ;-)


        Stefan




  reply	other threads:[~2019-03-16 18:25 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-16 18:09 Errors indicated by ineffective backslashes in string literals Mattias Engdegård
2019-03-16 18:25 ` Stefan Monnier [this message]
2019-03-16 19:04   ` Mattias Engdegård
2019-03-16 19:22     ` Stefan Monnier
2019-03-19  1:56     ` Paul Eggert
2019-03-16 18:40 ` Paul Eggert
2019-03-16 19:06   ` Mattias Engdegård

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