Regression: String#match after String#gsub (and vice versa) with the same
string work incorrectly
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Key: JRUBY-1778
URL: http://jira.codehaus.org/browse/JRUBY-1778
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Environment: Latest JRuby 1.1b1 from trunk.
Reporter: Vladimir Sizikov
Consider the following example:
{noformat}
p "hello.".gsub('.', "!")
p "hello".match('.')
{noformat}
MRI produces:
"hello!"
#<MatchData:0x174219d>
JRuby produces
"hello!"
nil
This problem also leads to one Rubinius spec failure, when all String tests are
executed in one run:
String#match tries to convert pattern to a string via to_str FAILED
undefined method `[]' for nil:NilClass:
/opt/work/rubinius/./spec/core/string/match_spec.rb:47:in `method_missing'
/opt/work/rubinius/./spec/core/string/match_spec.rb:42:in `call'
./mspec/runner/runner.rb:136:in `describe'
./mspec/runner/runner.rb:135:in `each'
./mspec/runner/runner.rb:130:in `describe'
./mspec/runner/runner.rb:135:in `describe'
/opt/work/rubinius/./spec/core/string/match_spec.rb:37:in `describe'
/opt/work/rubinius/./spec/core/string/match_spec.rb:37:in `load'
tmp/last_mspec.rb:19:in `load'
tmp/last_mspec.rb:13:in `each'
tmp/last_mspec.rb:13:in `each'
The root cause of the problem is identified, and the patch is going to be
submitted shortly, along with regression test.
(The root cause is that patternCache is used incorrectly and mixes quoted and
non-quoted strings).
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