Making the source code utf-8

[Yasumasa Suenaga]

I give big +1 to this idea, thanks Magnus!


2023-02-07 21:28 に Magnus Ihse Bursie さんは書きました:
> Currently, the source code in the JDK is in an ill-defined encoding.
> There is no official declaration of the encoding used. It is "mostly
> ASCII", but the relatively few non-ASCII characters used are not
> well-defined. In many cases, it is latin-1, but I am pretty certain
> other encodings are used for e.g. Asian translations.
> 
> This is is creating unnecessary problems when working with the JDK
> code base, while providing no benefit. We ended up here not by choice,
> but by historical accident. Most recently, this issue has surfaced in
> JDK-8301853, JDK-8301854 and JDK-8301855, but there has popped up
> issues relating to this from time to time, e.g. JDK-8263028.
> 
> As JEP 400[1] confirms, UTF-8 is the way to go. We should follow up on
> this by converting our code base to UTF-8.
> 
> I have created JDK-8301971[2] with the intention of converting all
> files to UTF-8, and updating all infrastructure to recognize this
> fact.
> 
> Even though 99.9% of all text in the JDK repository is ASCII only,
> with a code base the size of the JDK there are of course many, many
> instances that needs to be checked and/or converted. I can take care
> of the overarching issues, like updating compiler flags and develop
> tooling to detect, and try to convert non-ASCII files based on my best
> guesses, but in the end, there are likely to be many files which needs
> to be verified by their respective teams, so that I did not assume the
> incorrect source encoding.
> 
> So, before I go ahead and start doing this, I want to check:
> 
> * Is everyone onboard with this idea? I do assume that in 2023, having
> UTF-8 encoding for text files is (or should be) a no-brainer, but I
> want to verify that there is no-one opposing this.
> 
> * Should I open a JEP for this? On the one hand, it is likely to
> require a non-trivial amount of work, but on the other hand, there is
> no change visible for the end user, so it will be kind of pointless to
> announce. For my part, I could go either way, so I'm interested in
> hearing opinions, preferably with good rationales, for one way or the
> other.
> 
> /Magnus
> 
> [1] https://openjdk.org/jeps/400
> [2] https://bugs.openjdk.org/browse/JDK-8301971