GNU bug report logs - #10786
24.0.93; ruby-mode improperly handles symbols with keyword names in JS-style hashes

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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: 10786 <at> debbugs.gnu.org
Subject: bug#10786: 24.0.93; ruby-mode improperly handles symbols with keyword names in JS-style hashes
Date: Sat, 11 Feb 2012 04:27:33 +0400

[Message part 1 (text/plain, inline)]

Ruby 1.9 introduced the new syntax for hashes:

{key1: value1, key2: value2}

which is synonymous to {:key1 => value1, :key2 => value2}

The latest ruby-mode highlights the keywords in the new-style hashes 
properly, but fails to account for the case when the symbol's name is an 
otherwise reserved keyword. Examples:

link_to("root", root_path, class: "pink")

before_filter :do_stuff, if: :not_busy?

announce("The end is near!", end: "2012-12-31")

In all examples, the symbol (class, if, end) is being highlighted as a 
reserved keyword, and the indentation becomes broken on all lines below it.

There's a similar bug on the Ruby bug tracker:
http://bugs.ruby-lang.org/issues/5140

See attachment for the patch.

[ruby-keyword-symbols-patch.diff (text/plain, attachment)]

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