Issue #5024 has been reported by Robert Smith.

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Bug #5024: ruby-mode.el syntax highlighting breaks on regular expression with quotes
http://redmine.ruby-lang.org/issues/5024

Author: Robert Smith
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 1.9.2
ruby -v: 1.9.2-p180 revision 30909


I am using 1.9.2-p160 revision 29036

If there are an odd number of quotation marks inside a regular expression, the syntax highlighting breaks, continuing the regular expression color until another quotation mark is found.

method /^"([^"]*)"$/ do |arg|
# continues regular expression syntax color until quotation is matched

Syntax continues to work correctly with parentheses around the method, such as
method(/^"([^"]*)"$/) do |arg|

Searching led me to a related bug that was fixed: http://redmine.ruby-lang.org/issues/show/4242


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