Bug #9849: gsub(String, String) doesn't work properly

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: 2.2.0
• ruby -v: ruby 2.2.0dev (2014-05-19 trunk 46010) [i686-linux]
• Backport: 2.0.0: DONTNEED, 2.1: DONTNEED

[shugo (Shugo Maeda)]

gsub(String, String) doesn't work properly as follows:

$ ruby -ve 'puts "あああ\"foo\"\n\"bar\"".gsub("\"", "\"\"")' 
ruby 2.2.0dev (2014-05-19 trunk 46010) [i686-linux]
あああ""foo"
"bar""

The expected behavior is:

$ ~/.rbenv/versions/2.1.1/bin/ruby -ve 'puts "あああ\"foo\"\n\"bar\"".gsub("\"", "\"\"")' 
ruby 2.1.1p76 (2014-02-24 revision 45161) [i686-linux]
あああ""foo""
""bar""

It seems that the bug was introduced by r45451, so I assign this issue to nobu.

[nobu (Nobuyoshi Nakada)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN to 2.0.0: DONTNEED, 2.1: DONTNEED

[nobu (Nobuyoshi Nakada)]

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

Applied in changeset r46013.

---

string.c: byte offset

• string.c (rb_pat_search): advance by byte offset but not by char
  offset. [ruby-core:62669] [Bug #9849]