On 8/13/20 12:17 AM, Frank Tang wrote:
[Note: Resent due to message header problem. Sorry]
Contact emails
[email protected] <mailto:[email protected]>, [email protected]
<mailto:[email protected]>
Explainer
https://github.com/tc39/proposal-intl-segmenter
<https://github.com/tc39/proposal-intl-segmenter>
Specification
https://tc39.github.io/proposal-intl-segmenter/
<https://tc39.github.io/proposal-intl-segmenter/>
Design docs
https://docs.google.com/document/d/1xugLpLmgRFnNXK8ztariTAbD2IXueDw1T3VNuuZCz8k/edit#heading=h.xgjl2srtytjt
<https://docs.google.com/document/d/1xugLpLmgRFnNXK8ztariTAbD2IXueDw1T3VNuuZCz8k/edit#heading=h.xgjl2srtytjt>
https://docs.google.com/presentation/d/1X2zBU3bZ4ergVMWfubCsdnHFzeaDgqiTRJVgvNGjQBs/edit#slide=id.p
<https://docs.google.com/presentation/d/1X2zBU3bZ4ergVMWfubCsdnHFzeaDgqiTRJVgvNGjQBs/edit#slide=id.p>
TAG review
review by ECMA402
Summary
Intl.Segmenter implements methods for finding the location of
boundaries in text, including grapheme, line, word and sentence
boundary analysis.
Motivation
Currently, chrome is shipped with Intl.v8BreakIterator - a non
standard way for similar functionality. According to
https://www.chromestatus.com/metrics/feature/timeline/popularity/556
<https://www.chromestatus.com/metrics/feature/timeline/popularity/556> on
2020 Feb there are 0.74% of the web page use it. Intl.Segmenter is the
web standard to replace it.
Risks
Interoperability and Compatibility
The specification is moved to Stage 3 in TC39 2020-Jul meeting with
support from ECMA402.
/Gecko/: In development
(https://bugzilla.mozilla.org/show_bug.cgi?id=1423593
<https://bugzilla.mozilla.org/show_bug.cgi?id=1423593>)
FWIW, in development seems a bit of a stretch since there hasn't been
activity in the bug for a while.
The patch is three years old and there was a bit of a concern due to the
binary size growing quite a bit
<https://bugzilla.mozilla.org/show_bug.cgi?id=1423593#c9>.
(Not an expert on this, but Gecko's layout engine doesn't use ICU for
line-breaking, IIRC, so a lot of the ICU data that would be required for
this has to be imported).
There may be alternative implementation strategies or what not, but it
doesn't seem to be actively worked on.
/WebKit/: No signal
/Web developers/: No signals
Ergonomics
Engineer from Apple believe we should not add line break support to
the Intl.Segmenter because the developer may abuse the API and perform
text layout by themselves instead of depending on CSS. The line break
feature then were removed from the specification in the current shape.
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
Yes
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>?
Yes https://github.com/tc39/test262/tree/master/test/intl402/Segmenter
<https://github.com/tc39/test262/tree/master/test/intl402/Segmenter>
Link to entry on the Chrome Platform Status
https://www.chromestatus.com/feature/6099397733515264
<https://www.chromestatus.com/feature/6099397733515264>
This intent message was generated by Chrome Platform Status
<https://www.chromestatus.com/>.
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