Does segment_UTF8 function accepts offset as an argument?

[riajain0412]

I want to use segmenter functionality with offset. In ICU4C, we have an option to get boundary according to offset so do we have this on the similar lines in ICU4X?
I checked ICU4X segmenter docs but was unable to see if we can pass a offset argument or not.

[sffc]

ICU4X should support everything in ECMA-402, which has a Segments.containing function:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Segmenter/segment/Segments/containing

const segmenterFr = new Intl.Segmenter('fr', { granularity: 'word' });
const string1 = 'Que ma joie demeure';

const segments = segmenterFr.segment(string1);

console.log(segments.containing(5));
// Expected output:
// Object {segment: 'ma', index: 4, input: 'Que ma joie demeure', isWordLike: true}

Do we support this yet in ICU4X @makotokato?

[aethanyc]

Filed #3247.

[riajain0412]

Yes, I'm talking about this preceding and following function.

[riajain0412]

@sffc , Will ICU4X Test Data provider give correct results for Lao language?
I was running segment_utf16 on Lao string but its results are not inline with ICU4C results.

[sffc]

The ICU4X Test Data provider supports Japanese and Thai. For the other languages, you should follow the steps in the tutorial to generate your own data; in general the testdata provider is intended for testing. You can also track #2945 which will make it possible to get full data without needing to build it using the tool.

[riajain0412]

Okay, is there any tutorial to know how to load data blob in C++?