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-rw-r--r--ChangeLog6
-rw-r--r--string.c6
-rw-r--r--test/ruby/test_m17n.rb5
3 files changed, 15 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 59f8e78d8b..5c50f32789 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Tue Jul 22 12:56:24 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * string.c (rb_str_count): fix wrong single-byte optimization.
+ 7bit ascii can be a trailing byte in Shift_JIS.
+ [ruby-dev:48442] [Bug #10078]
+
Tue Jul 22 01:48:38 2014 Eric Wong <e@80x24.org>
* include/ruby/io.h (rb_io_buffer_t): fix packing on gcc
diff --git a/string.c b/string.c
index 4feb7cfc2e..b303b56d89 100644
--- a/string.c
+++ b/string.c
@@ -6075,13 +6075,15 @@ rb_str_count(int argc, VALUE *argv, VALUE str)
rb_check_arity(argc, 1, UNLIMITED_ARGUMENTS);
for (i=0; i<argc; i++) {
VALUE tstr = argv[i];
- unsigned char c;
+ const unsigned char *utstr;
StringValue(tstr);
enc = rb_enc_check(str, tstr);
if (argc == 1 && RSTRING_LEN(tstr) == 1 && rb_enc_asciicompat(enc) &&
- (c = RSTRING_PTR(tstr)[0]) < 0x80 && !is_broken_string(str)) {
+ (utstr = (const OnigUChar *)RSTRING_PTR(tstr), ONIGENC_IS_ALLOWED_REVERSE_MATCH(enc, utstr, utstr+1)) &&
+ !is_broken_string(str)) {
int n = 0;
+ unsigned char c = utstr[0];
s = RSTRING_PTR(str);
if (!s || RSTRING_LEN(str) == 0) return INT2FIX(0);
diff --git a/test/ruby/test_m17n.rb b/test/ruby/test_m17n.rb
index b9b85b2129..7d00b1aec6 100644
--- a/test/ruby/test_m17n.rb
+++ b/test/ruby/test_m17n.rb
@@ -1037,6 +1037,11 @@ class TestM17N < Test::Unit::TestCase
assert_raise(Encoding::CompatibilityError){s.count(a("\xa3\xb0"))}
end
+ def test_count_sjis_trailing_byte
+ bug10078 = '[ruby-dev:48442] [Bug #10078]'
+ assert_equal(0, s("\x98\x61").count("a"), bug10078)
+ end
+
def test_delete
assert_equal(1, e("\xa1\xa2").delete("z").length)
s = e("\xa3\xb0\xa3\xb1\xa3\xb2\xa3\xb3\xa3\xb4")