regexp.c: Backport #3403; backported from r28192 to fix a bug with non-greedy matching.

test/ruby/test_regexp.rb: Backport #3403; added this test suite, commenting out inapplicable tests to the current 1.8.6.
ChangeLog: Got my date wrong in the last few entries. Tuesday is the 8th, not the 9th!


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8_6@28231 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/regex.c b/regex.c
index 54f6b4c9a1..416bb0f9ec 100644
--- a/regex.c
+++ b/regex.c
@@ -2147,6 +2147,12 @@ re_compile_pattern(pattern, size, bufp)
 	   more at the end of the loop.  */
 	unsigned nbytes = upper_bound == 1 ? 10 : 20;
 
+	if (lower_bound == 0 && greedy == 0) {
+	    GET_BUFFER_SPACE(3);
+	    insert_jump(try_next, laststart, b + 3, b);
+	    b += 3;
+	}
+
 	GET_BUFFER_SPACE(nbytes);
 	/* Initialize lower bound of the `succeed_n', even
 	   though it will be set during matching by its