bug#21230: 25.0.50; scss-mode: Font Lock hangs on Sass lists

[Simen Heggestøyl]

In scss-mode, Font Lock hangs on particular instances of Sass lists.

To see an example of this, paste the following into a buffer, and

activate scss-mode + font-lock-mode:

$list: (

    ('string', #000000, #fff)

    ('string', #000000, #fff)

    ('string', #000000, #fff)

    ('string', #000000, #fff)

    ('string', #000000, #fff)

    ('string', #000000, #fff)

);

Font Lock hangs, and I find that I have to press C-g a number of times

to be able to continue editing.

In GNU Emacs 25.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.16.6)

 of 2015-08-10 on x240

Repository revision: a9bb9d8fc22417d1fafd8001d89a91c33c8b39ec

Windowing system distributor `The X.Org Foundation', version 11.0.11702000

System Description: Debian GNU/Linux testing (stretch)

Configured features:

XPM JPEG TIFF GIF PNG SOUND DBUS GSETTINGS NOTIFY LIBXML2 FREETYPE XFT

ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:

  value of $LANG: en_US.UTF-8

  locale-coding-system: utf-8-unix

Major mode: SCSS