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string.c: fix for \K

* string.c (str_gsub): use BEG(0) for whole matched position not
  return value from rb_reg_search(), for \K matching.
  [ruby-dev:47694] [Bug #8856]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42820 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu committed Sep 4, 2013
1 parent 90cbcbe commit b31965cb43e8f6117435acf6f676cb9a4417afff
Showing with 13 additions and 1 deletion.
  1. +6 −0 ChangeLog
  2. +1 −1 string.c
  3. +6 −0 test/ruby/test_regexp.rb
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@@ -1,3 +1,9 @@
+Wed Sep 4 11:13:40 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * string.c (str_gsub): use BEG(0) for whole matched position not
+ return value from rb_reg_search(), for \K matching.
+ [ruby-dev:47694] [Bug #8856]
+
Wed Sep 4 11:11:37 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* configure.in (SOLIBS): LIBRUBY_SO also needs linking with gmp, to
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@@ -4079,7 +4079,7 @@ str_gsub(int argc, VALUE *argv, VALUE str, int bang)
if (OBJ_TAINTED(val)) tainted = 1;
- len = beg - offset; /* copy pre-match substr */
+ len = beg0 - offset; /* copy pre-match substr */
if (len) {
rb_enc_str_buf_cat(dest, cp, len, str_enc);
}
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@@ -500,6 +500,12 @@ def test_regsub
assert_equal('foo[\z]baz', "foobarbaz".sub!(/(b..)/, '[\z]'))
end
+ def test_regsub_K
+ bug8856 = '[ruby-dev:47694] [Bug #8856]'
+ result = "foobarbazquux/foobarbazquux".gsub(/foo\Kbar/, "")
+ assert_equal('foobazquux/foobazquux', result, bug8856)
+ end
+
def test_KCODE
assert_nil($KCODE)
assert_nothing_raised { $KCODE = nil }

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