[Help wanted] Is there a way to get page lang?

[Mister-Hope]

In V1, there is a internal variable called page._computed.$lang in PageComputed.

But V2, the Page in extendsPage only has pathLocale, and it's hard to get the actual lang from it.
(Currently the best way I found is to import resolveSiteLocaleData from @vuepress/client and called resolveSiteLocaleData(app.options, page.pathLocale) then check result.locales.lang )

I wonder if it there is another simple way.🤓

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I think it's common for people to extend page with i18n related data, and that may need lang. And we can't just regard / as english

[Mister-Hope]

Addtional: it's only possible to use resolveSiteLocaleData with tools like rollup on node side, because @vuepress/client is complete output as esm syntax. @meteorlxy Any ideas with this one?

I don't think people should resolve page lang from locales in siteconfig and themeConfig and current page path by themseleves

[meteorlxy]

Page language is available in page data now 03bb09f