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re.c: append excape sequence as-is

* re.c (unescape_nonascii): append excape sequence as-is not
  unescaped character, to get rid of unexpected meta-character.
  [ruby-core:67193] [Bug #10670]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49058 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-12-29 09:58:48 +00:00
parent d1e65737f6
commit 316210b80b
3 changed files with 17 additions and 1 deletions

View file

@ -1,3 +1,9 @@
Mon Dec 29 18:58:46 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* re.c (unescape_nonascii): append excape sequence as-is not
unescaped character, to get rid of unexpected meta-character.
[ruby-core:67193] [Bug #10670]
Mon Dec 29 14:27:33 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* doc/syntax/literals.rdoc (Symbols): now Symbols created by

3
re.c
View file

@ -2298,9 +2298,10 @@ unescape_nonascii(const char *p, const char *end, rb_encoding *enc,
case 'M': /* \M-X, \M-\C-X, \M-\cX */
p = p-2;
if (enc == rb_usascii_encoding()) {
const char *pbeg = p;
c = read_escaped_byte(&p, end, err);
if (c == (char)-1) return -1;
rb_str_buf_cat(buf, &c, 1);
rb_str_buf_cat(buf, pbeg, p-pbeg);
}
else {
if (unescape_escaped_nonascii(&p, end, enc, buf, encp, err) != 0)

View file

@ -1579,4 +1579,13 @@ class TestM17N < Test::Unit::TestCase
assert_same(str, str.scrub!)
assert_equal("\uFFFD\uFFFD\uFFFD", str)
end
def test_escaped_metachar
bug10670 = '[ruby-core:67193] [Bug #10670]'
escape_plain = /\A[\x5B]*\z/.freeze
assert_match(escape_plain, 0x5b.chr(::Encoding::UTF_8), bug10670)
assert_match(escape_plain, 0x5b.chr, bug10670)
end
end