From: nobu@...
Date: 2016-11-23T01:14:30+00:00
Subject: [ruby-core:78268] [Ruby trunk Feature#12926] -l flag for line end processing should use chomp! instead of chop!

Issue #12926 has been updated by Nobuyoshi Nakada.


I'd consider it a bug.

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

----------------------------------------
Feature #12926: -l flag for line end processing should use chomp! instead of chop! 
https://bugs.ruby-lang.org/issues/12926#change-61634

* Author: Josh Cheek
* Status: Open
* Priority: Normal
* Assignee: 
----------------------------------------
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"
```



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