Preserve WebVTT tags in subtitle lines

[NhanNguyen700]

Hi all,

WebVTT STYLE block is CSS and it allow to write custom CSS class or tag in xml to applied to the lines of WebVTT, also, some default tag like tag i (italic), b (bold), u (underline), etc are supported too, for example:

WEBVTT

00:01:00.000 --> 00:02:00.000
<u><i>Italic with underline text</i></u> some extra

00:02:00.000 --> 00:03:00.000
<lang en>English here</lang> <c.yellow.bg_blue>Yellow text on blue background</c>

00:03:00.000 --> 00:04:00.000
<v Joe><c.red><i>Joe's words are red in italic</i></c>

00:04:00.000 --> 00:05:00.000
<customed_tag.class1.class2>Text here</customed_tag>

So, I add these change to preserve the tags in WebVTT files. This will be convenient if someday, we decide to convert styling from WebVTT to TTML or another format.

According to WebVTT format at: https://www.w3.org/TR/webvtt1/

[NhanNguyen700]

Hi @asticode , could you please have a look?

[asticode]

2 final minor changes and I'll merge this PR 👍

[NhanNguyen700]

@asticode , thank you for your ideas! After merging the PR, would you mind creating a release tag for new changes?

[asticode]

FYI I've created a v0.26.0 tag 👍

Thanks again for the PR ❤️

[NhanNguyen700]

Hi @asticode ,
I see that you had created a tag 0.26.0, but when including it to my project, the version 0.26.0 does not include newest change. Checked with go packages page here: https://pkg.go.dev/github.com/asticode/go-astisub@v0.26.0, there is a version of 0.26.0 but it was released in late July. There is a tag conflict?

[asticode]

Yeah there was a mixup, v0.26.0 was pointing to a commit on a dev branch therefore I've overwritten hoping it would be sufficient. But it seems that it's not.

I've created a v0.26.1 tag pointing to the last master's commit. Let me know if that fixes your issue 👍

[NhanNguyen700]

Thank you! It's working now.