Feature #12926: -l flag for line end processing should use chomp! instead of chop!

• Status: Closed
• Assignee: nobu (Nobuyoshi Nakada)
• Target version: -

[josh.cheek (Josh Cheek)]

Using chop! can mess up the final line of input because it may not end in a line-end character.

printf a\\nb\\nc | ruby -lne 'p $_'
"a"
"b"
""


$ printf a\\nb\\nc\\n | ruby -lne 'p $_'
"a"
"b"
"c"

Using chomp! works correctly in both cases.

$ printf a\\nb\\nc | ruby -ne '$_.chomp!; p $_'
"a"
"b"
"c"

$ printf a\\nb\\nc\\n | ruby -ne '$_.chomp!; p $_'
"a"
"b"
"c"

[nobu (Nobuyoshi Nakada)]

I'd consider it a bug.

https://github.com/nobu/ruby/tree/bug/12926-chomp-l

[matz (Yukihiro Matsumoto)]

• Assignee set to nobu (Nobuyoshi Nakada)

OK, accepted
This is because -l is older than chomp.

Matz.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r57373.

---

parse.y: chomp by -l

• parse.y (rb_parser_while_loop): should chomp but not chop by -l
  option. [ruby-core:78099] [Bug #12926]