Bug #19746: `String#index` with regexp and too large offset doesn't clear `$~`

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 3.0: REQUIRED, 3.1: REQUIRED, 3.2: WONTFIX

[nobu (Nobuyoshi Nakada)]

/./ =~ "a"
p "x".index(/0/, 4) #=> nil
p $~ #=> #<MatchData "a">

while rindex does.

/./ =~ "a"
p "x".rindex(/0/, 4) #=> nil
p $~ #=> nil

It seems since 1.9.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset git|0cbfeb8210cd177bee95c512834c483daec36f74.

---

[Bug #19746] String#index with regexp should clear $~ unless matched

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 3.0: REQUIRED, 3.1: REQUIRED, 3.2: REQUIRED to 3.0: REQUIRED, 3.1: REQUIRED, 3.2: WONTFIX

I cannot confident that there's no existing application depends on the current behavior.
I don't backport the changeset.