[jruby-dev] [jira] (JRUBY-6434) sprintf does not support name references, like sprintf('%s', :xyz => 'abc')

[Theo Hultberg (JIRA)]

Theo Hultberg created JRUBY-6434:
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             Summary: sprintf does not support name references, like 
sprintf('%<xyz>s', :xyz => 'abc')
                 Key: JRUBY-6434
                 URL: https://jira.codehaus.org/browse/JRUBY-6434
             Project: JRuby
          Issue Type: Bug
    Affects Versions: JRuby 1.6.6, JRuby 1.6.5, JRuby 1.6.4
         Environment: jruby 1.6.6 (ruby-1.9.2-p312) (2012-01-30 5673572) 
(OpenJDK Client VM 1.7.0-b222) [darwin-i386-java]
            Reporter: Theo Hultberg
            Assignee: Thomas E Enebo


MRI supports name references in {{sprintf}}, like

{noformat}
sprintf("%<foo>d : %<bar>f", { :foo => 1, :bar => 2 })
{noformat}

this results in an argument error in JRuby:

{noformat}
ArgumentError: malformed format string - %<
{noformat}

The feature is described at the end of the {{sprintf}} documentation here:

http://rubydoc.info/stdlib/core/1.9.2/Kernel#sprintf-instance_method

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