naruse	2010-06-07 15:14:46 +0900 (Mon, 07 Jun 2010)

  New Revision: 28192

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=28192

  Log:
    * regexp.c (re_compile_pattern): allow zero times match for
      non-greedy range repeatation. [ruby-core:30613]

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/regex.c
    branches/ruby_1_8/test/ruby/test_regexp.rb
    branches/ruby_1_8/version.h

Index: ruby_1_8/ChangeLog
===================================================================
--- ruby_1_8/ChangeLog	(revision 28191)
+++ ruby_1_8/ChangeLog	(revision 28192)
@@ -1,3 +1,8 @@
+Mon Jun  7 12:27:29 2010  NARUSE, Yui  <naruse@r...>
+
+	* regexp.c (re_compile_pattern): allow zero times match for
+	  non-greedy range repeatation. [ruby-core:30613]
+
 Sat Jun  5 13:31:15 2010  Marc-Andre Lafortune  <ruby-core@m...>
 
 	* lib/matrix.rb: Matrix library copied from 1.9. It is now identical
Index: ruby_1_8/version.h
===================================================================
--- ruby_1_8/version.h	(revision 28191)
+++ ruby_1_8/version.h	(revision 28192)
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.8.8"
-#define RUBY_RELEASE_DATE "2010-06-05"
+#define RUBY_RELEASE_DATE "2010-06-07"
 #define RUBY_VERSION_CODE 188
-#define RUBY_RELEASE_CODE 20100605
+#define RUBY_RELEASE_CODE 20100607
 #define RUBY_PATCHLEVEL -1
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 8
 #define RUBY_RELEASE_YEAR 2010
 #define RUBY_RELEASE_MONTH 6
-#define RUBY_RELEASE_DAY 5
+#define RUBY_RELEASE_DAY 7
 
 #define NO_STRING_LITERAL_CONCATENATION 1
 #ifdef RUBY_EXTERN
Index: ruby_1_8/test/ruby/test_regexp.rb
===================================================================
--- ruby_1_8/test/ruby/test_regexp.rb	(revision 28191)
+++ ruby_1_8/test/ruby/test_regexp.rb	(revision 28192)
@@ -467,4 +467,9 @@
     assert_equal("1", $1)
     assert_equal(" " * 4999999, $2)
   end
+
+  def test_range_greedy
+    /wo{0,3}?/ =~ "woo"
+    assert_equal("w", $&)
+  end
 end
Index: ruby_1_8/regex.c
===================================================================
--- ruby_1_8/regex.c	(revision 28191)
+++ ruby_1_8/regex.c	(revision 28192)
@@ -2152,6 +2152,12 @@
 	   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

--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/