Indentation Rules.tmPreferences

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>scope</key>
	<string>source.coffee</string>
	<key>settings</key>
	<dict>
		<key>decreaseIndentPattern</key>
		<string>^\s*(\}|\]|else|catch|finally|else\s+if\s+\S.*)$</string>
		<key>increaseIndentPattern</key>
		<string>(?x)
			^\s*
			( .*\bclass\b(?!\s*:) # class keyword without colon after it (otherwise we are in object with property name "class")
			| [a-zA-Z\$_](\w|\$|:|\.)*\s*(?=\:(\s*\(.*\))?\s*((=|-)&gt;\s*$)) # function that is not one line
			| [a-zA-Z\$_](\w|\$|\.)*\s*(:|=)\s*((if|while)(?!.*?then)|for|$) # assignment using multiline if/while/for
			| (if|while|unless)\b(?!.*?then)|(for|switch|when|loop)\b
			| (else|try|finally|catch\s+\S.*|else\s+if\s+\S.*)\s*$
			| .*[-=]&gt;$
			| .*[\{\[]$
			)
		</string>
	</dict>
</dict>
</plist>