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Ensure result encoding is the same as input encoding for String#gsub. [Bug #4340].

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30806 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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drbrain 2011-02-06 03:54:50 +00:00
parent b1986003bd
commit edaf78dfb6
3 changed files with 21 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
Sun Feb 6 12:46:02 2011 Eric Hodel <drbrain@segment7.net>
* string.c (gsub): Ensure result encoding is the same as input
encoding. [Bug #4340].
Sun Feb 6 12:18:25 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* parse.y (words, qwords): dispatch array events. based on a

1
string.c
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@ -3745,6 +3745,7 @@ str_gsub(int argc, VALUE *argv, VALUE str, int bang)
slen = RSTRING_LEN(str);
cp = sp;
str_enc = STR_ENC_GET(str);
rb_enc_associate(dest, str_enc);
do {
n++;

15
test/ruby/test_string.rb
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@ -674,6 +674,21 @@ class TestString < Test::Unit::TestCase
assert_raise(ArgumentError) { "foo".gsub }
end
def test_gsub_encoding
a = S("hello world")
a.force_encoding Encoding::UTF_8
b = S("hi")
b.force_encoding Encoding::US_ASCII
assert_equal Encoding::UTF_8, a.gsub(/hello/, b).encoding
c = S("everybody")
c.force_encoding Encoding::US_ASCII
assert_equal Encoding::UTF_8, a.gsub(/world/, c).encoding
end
def test_gsub!
a = S("hello")
b = a.dup