[ruby-trunk - Bug #7646][Open] String#each lineでinvalid byte sequence

aris · January 2, 2013, 5:44pm

Issue #7646 has been reported by yoshidam (Yoshida Masato).

Bug #7646: String#each_lineでinvalid byte sequence

Author: yoshidam (Yoshida Masato)
Status: Open
Priority: Normal
Assignee:
Category:
Target version:
ruby -v: ruby 2.0.0dev (2013-01-02 trunk 38676) [i686-linux]

=begin
String#each_lineでセパレータを指定したときにASCII以外の文字でinvalid byte sequenceが発生します。

$ ruby -ve ‘“\n\u0100”.each_line(“\n”) {|l| p l }’
ruby 2.0.0dev (2013-01-02 trunk 38676) [i686-linux]
“\n”
-e:1:in each_line': invalid byte sequence in UTF-8 (ArgumentError) from -e:1:in ’

r38616あたりの変更で入ったバグのようです。

— string.c.org 2012-12-27 21:57:07.000000000 +0900
+++ string.c 2013-01-02 23:36:47.000000000 +0900
@@ -6199,14 +6199,14 @@
if (c == newline &&
(rslen <= 1 ||
(pend - p >= rslen && memcmp(RSTRING_PTR(rs), p, rslen) ==
0))) {

```
      p += (rslen ? rslen : n);
```

      line = rb_str_subseq(str, s - ptr, p - s);

      const char *pp = p + (rslen ? rslen : n);

      line = rb_str_subseq(str, s - ptr, pp - s);
      if (wantarray)
          rb_ary_push(ary, line);
      else
          rb_yield(line);
      str_mod_check(str, ptr, len);

```
      s = p;
```

```
      s = pp;
  }
  p += n;
```
}

=end

yoshidam_SYoshida_M · January 2, 2013, 6:07pm

Issue #7646 has been updated by kosaki (Motohiro KOSAKI).

Category set to core
Status changed from Open to Assigned
Assignee set to nobu (Nobuyoshi N.)
Priority changed from Normal to High
Target version set to 2.0.0

これはどうみても regressionじゃないかな。
2.0.0タグつけます。