RFR: JDK-8266779: Use <wbr> instead of ZERO_WIDTH_SPACE [v2]

[Pavel Rappo]

On Mon, 10 May 2021 14:01:46 GMT, Hannes Wallnöfer <hannesw at openjdk.org> wrote:

>> This replaces usages of the zero-width space character (ZWSP, entity `​`) with the HTML5 `<wbr>` element. `<wbr>` acts as a word break opportunity without adding characters to the text content like ZWSP does. It is supported in all modern browsers, the only browser I  know of which doesn't support is are old versions of Internet Explorer. 
>> 
>> https://developer.mozilla.org/en-US/docs/Web/HTML/Element/wbr
>> https://caniuse.com/wbr-element
>> 
>> I have tested the output (both layout and copy-paste behaviour) on Firefox, Safari, and Chrome on Mac OS X.
>
> Hannes Wallnöfer has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:
> 
>  - Merge branch 'master' into JDK-8266779
>  - JDK-8266779: Use <wbr> instead of ZERO_WIDTH_SPACE

Come to think of it, consider obtaining an instance of a `<wbr>` tag indirectly through a static factory method `HtmlTree.WBR()` rather than through a direct allocation `new HtmlTree(TagName.WBR)`.

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PR: https://git.openjdk.java.net/jdk/pull/3946