Xuân Baldauf created JRUBY-6604:
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Summary: Cannot programmatically create regular expression
/[\\x80]/n
Key: JRUBY-6604
URL: https://jira.codehaus.org/browse/JRUBY-6604
Project: JRuby
Issue Type: Bug
Components: Compiler, Parser
Affects Versions: JRuby 1.6.7
Reporter: Xuân Baldauf
In the expression "/#{a}/n", apparently the "n" flag is ignored, while it
should be honoured.
{noformat}
# jruby --1.9 -S irb
irb(main):001:0> a = '[\\x80]'
=> "[\\x80]"
irb(main):002:0> b = /(?:#{a})/n
=> /(?:[\x80])/
irb(main):003:0> c = /#{a}/n
RegexpError: (RegexpError) invalid multibyte escape: /[\x80]/
{noformat}
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