GNU bug report logs - #19946
js-mode indentation with mixed Unix/DOS line endings

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Message #26 received at 19946 <at> debbugs.gnu.org (full text, mbox):

From: Dmitry Gutov <dgutov <at> yandex.ru>
To: jostein <at> kjonigsen.net, Simen Heggestøyl
 <simenheg <at> gmail.com>
Cc: 19946 <at> debbugs.gnu.org, dan.colascione <at> gmail.com
Subject: Re: bug#19946: 24.4; js-mode, indentation
Date: Sun, 20 Mar 2016 21:18:26 +0200

On 03/20/2016 09:01 PM, Jostein Kjønigsen wrote:

>> Some modes try to match [\r\n] (like CC Mode), but in general they seem
>> to be a minority, and even CC Mode doesn't do that consistently.
>
> I really don't see how that argument makes sense.

It's not an argument, it's an observation: clearly we, as a project, 
haven't made a decision to properly support mixed-newline files.

> By following the cardinal rule of good software, that is produce the
> least amont of astonishment, cc-mode does what's right: it produces the
> expected outcome, no matter what kind of file it's working with.

Does it? CC Mode still uses $ in a lot of places.

>> I wonder why ?\r doesn't have whitespace syntax in the first place.
>
> Make ?\r be interpreted as white-space, because once you put Emacs
> outside a GNU/Linux system honestly nothing else makes sense. Is there
> any specific reason for its current behaviour?

Hmm, does this help?

diff --git a/lisp/progmodes/js.el b/lisp/progmodes/js.el
index 15a52ba..dffdb77 100644
--- a/lisp/progmodes/js.el
+++ b/lisp/progmodes/js.el
@@ -578,6 +578,7 @@ js-mode-syntax-table
     (c-populate-syntax-table table)
     (modify-syntax-entry ?$ "_" table)
     (modify-syntax-entry ?` "\"" table)
+    (modify-syntax-entry ?\C-M " " table)
     table)
   "Syntax table for `js-mode'.")

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