On Thu, 19 Jun 2025 10:57:52 GMT, Markus KARG <[email protected]> wrote:
>>> I think we should treat "\r\n" as a single line terminator?
>>
>> You are correct: that needs to be fixed:
>>
>> jshell> Reader r = new StringReader("hello\r\nworld")
>> r ==> java.io.StringReader@480bdb19
>>
>> jshell> r.readAllLines()
>> $3 ==> [hello, , world]
>>
>> Thanks for the catch!
>
> `Scanner` seems to scan for even more characters:
> https://github.com/openjdk/jdk/blob/c4fb00a7be51c7a05a29d3d57d787feb5c698ddf/src/java.base/share/classes/java/util/Scanner.java#L490
>
> Would it make sense to resemble this? Would it make sense to simply use
> `Scanner` directly? 🤔
The `readAllLines` method has a specification of line terminators that agrees
with that of `BufferedReader::readLine` and `String::lines` and so we don't
want to change it to be different.
Unfortunately `Scanner` doesn't seem to have a specification of what it
considers to be a line. Also unfortunately, its notion of line separators isn't
the same as the regex pattern `\R`.
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PR Review Comment: https://git.openjdk.org/jdk/pull/25863#discussion_r2162547839
