String#each_line is DEADLY SLOW
-------------------------------

                 Key: JRUBY-1429
                 URL: http://jira.codehaus.org/browse/JRUBY-1429
             Project: JRuby
          Issue Type: Bug
          Components: Core Classes/Modules
            Reporter: Ola Bini
            Assignee: Ola Bini
             Fix For: JRuby 1.1.0


In general usage String#each_line is really, really slow (about 200 times 
slower for a typical small example, but becoming really pathological for larger 
examples)

For larger Strings, the backtracking will easily kill you.

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