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-rw-r--r--ChangeLog5
-rw-r--r--NEWS4
-rw-r--r--string.c28
-rw-r--r--test/ruby/test_m17n.rb10
4 files changed, 45 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index bcad80d32a..8e4b50a20d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Nov 6 09:42:26 2012 NARUSE, Yui <naruse@ruby-lang.org>
+
+ * string.c (rb_str_b): Add String#b, returning a copied string
+ whose encoding is ASCII-8BIT. [ruby-dev:45992] [Feature #6767]
+
Tue Nov 6 09:37:57 2012 NARUSE, Yui <naruse@ruby-lang.org>
* ruby.c (load_file_internal): set default source encoding as
diff --git a/NEWS b/NEWS
index df737c447e..e84728065c 100644
--- a/NEWS
+++ b/NEWS
@@ -93,6 +93,10 @@ with all sufficient information, see the ChangeLog file.
* Signal.trap raises ArgumentError when :SEGV, :BUS, :ILL, :FPE, :VTALRM
are specified.
+ *String
+ * added method:
+ * added String#b returning a copied string whose encoding is ASCII-8BIT.
+
* Struct
* added method:
* added Struct#to_h returning values with keys corresponding to the
diff --git a/string.c b/string.c
index ae9af6c85d..d674e8903c 100644
--- a/string.c
+++ b/string.c
@@ -602,7 +602,7 @@ rb_str_export_to_enc(VALUE str, rb_encoding *enc)
}
static VALUE
-str_replace_shared(VALUE str2, VALUE str)
+str_replace_shared_without_enc(VALUE str2, VALUE str)
{
if (RSTRING_LEN(str) <= RSTRING_EMBED_LEN_MAX) {
STR_SET_EMBED(str2);
@@ -617,8 +617,14 @@ str_replace_shared(VALUE str2, VALUE str)
RSTRING(str2)->as.heap.aux.shared = str;
FL_SET(str2, ELTS_SHARED);
}
- rb_enc_cr_str_exact_copy(str2, str);
+ return str2;
+}
+static VALUE
+str_replace_shared(VALUE str2, VALUE str)
+{
+ str_replace_shared_without_enc(str2, str);
+ rb_enc_cr_str_exact_copy(str2, str);
return str2;
}
@@ -7362,6 +7368,23 @@ rb_str_force_encoding(VALUE str, VALUE enc)
/*
* call-seq:
+ * str.b -> str
+ *
+ * Returns a copied string whose encoding is ASCII-8BIT.
+ */
+
+static VALUE
+rb_str_b(VALUE str)
+{
+ VALUE str2 = str_alloc(rb_cString);
+ str_replace_shared_without_enc(str2, str);
+ OBJ_INFECT(str2, str);
+ ENC_CODERANGE_SET(str2, ENC_CODERANGE_VALID);
+ return str2;
+}
+
+/*
+ * call-seq:
* str.valid_encoding? -> true or false
*
* Returns true for a string which encoded correctly.
@@ -8001,6 +8024,7 @@ Init_String(void)
rb_define_method(rb_cString, "encoding", rb_obj_encoding, 0); /* in encoding.c */
rb_define_method(rb_cString, "force_encoding", rb_str_force_encoding, 1);
+ rb_define_method(rb_cString, "b", rb_str_b, 0);
rb_define_method(rb_cString, "valid_encoding?", rb_str_valid_encoding_p, 0);
rb_define_method(rb_cString, "ascii_only?", rb_str_is_ascii_only_p, 0);
diff --git a/test/ruby/test_m17n.rb b/test/ruby/test_m17n.rb
index 7e343ab31f..bdde127840 100644
--- a/test/ruby/test_m17n.rb
+++ b/test/ruby/test_m17n.rb
@@ -1471,4 +1471,14 @@ class TestM17N < Test::Unit::TestCase
yield(*strs)
end
end
+
+ def test_str_b
+ s = "\u3042"
+ assert_equal(a("\xE3\x81\x82"), s.b)
+ assert_equal(Encoding::ASCII_8BIT, s.b.encoding)
+ s.taint
+ assert_equal(true, s.b.tainted?)
+ s.untrust
+ assert_equal(true, s.b.untrusted?)
+ end
end