Bug #2379: String#[] returns invalid values for short multibyte strings

• Status: Closed
• Assignee: naruse (Yui NARUSE)
• Target version: 1.9.2
• ruby -v: ruby 1.9.1p333 (2009-11-02)

[raorn (Alexey Froloff)]

=begin
In UTF-8 locale command
ruby -e 'print "й"[0,30]' | od -t x1
prints:

0000000 d0 b9 00 00
for ruby 1.9.1p333 (2009-11-02) [i586-linux-gnu]

0000000 d0 b9 00 00 00 00 00 00
for ruby 1.9.1p333 (2009-11-02) [x86_64-linux-gnu]

Minimum "len" to reproduce is 9 for i586 and 17 for x86_64.
=end

[raorn (Alexey Froloff)]

=begin
"\u{444}" is better test string.
=end

[naruse (Yui NARUSE)]

• Category set to M17N
• Status changed from Open to Assigned
• Assignee set to naruse (Yui NARUSE)
• Target version set to 1.9.2

=begin

=end

[raorn (Alexey Froloff)]

=begin
This happens for all UTF-8 strings shorter than sizeof(VALUE) bytes and len greater than sizeof(VALUE)*2. Problem lies somewhere in str_utf8_nth() function.
=end

[nobu (Nobuyoshi Nakada)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

=begin
This issue was solved with changeset r25830.
Alexey, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end