From: "jpeterburs (Jonas Peterburs) via ruby-core" <ruby-core@...>
Date: 2025-01-30T13:02:44+00:00
Subject: [ruby-core:120843] [Ruby master Bug#21101] Encoding::CompatibilityError when using String#strip

Issue #21101 has been updated by jpeterburs (Jonas Peterburs).


Thank you very much for the quick answer, that seems to have resolved my problem.

----------------------------------------
Bug #21101: Encoding::CompatibilityError when using String#strip
https://bugs.ruby-lang.org/issues/21101#change-111709

* Author: jpeterburs (Jonas Peterburs)
* Status: Open
* ruby -v: 3.2.0
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN
----------------------------------------
When opening an ISO 8859-1 encoded file containing a German letter (e.g. �), then parsing through each line and stripping whitespace using either `rstrip` or `strip` it raises an Error ( `lstrip` seams fine; I'd assume it skips stripping when there isn't any whitespace in front of the string).

``` ruby
File.open('test.dat').each_line { |line| line.strip } # raises Encoding::CompatibilityError
```

I've tried this with multiple ruby versions.

It was working as expected in these versions:

- 2.7.8
- 3.0.0
- 3.0.7
- 3.1.0
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6

And it didn't work in these:
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.5
- 3.2.6
- 3.3.6
- 3.3.7

I didn't find anything in the Patch notes of ruby 3.2.0 about the changed behavior.

Did I miss something?

---Files--------------------------------
test.dat (142 Bytes)


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