Proposal: introduces PostHTML into Hexo

[SukkaW]

Since Hexo is a framework outputting HTML files. So we should introduce an HTML transformer into Hexo's core. PostHTML is a tool to transform HTML/XML. With PostHTML we can:

• Migrate away from RegExp and manipulate PostHTML AST instead.
  • meta_generator: https://github.com/hexojs/hexo/blob/master/lib/plugins/filter/after_render/meta_generator.js
  • external_link: https://github.com/hexojs/hexo/blob/4.2.1/lib/plugins/filter/after_render/external_link.js
  • Injector plugin: https://github.com/hexojs/hexo/blob/master/lib/extend/injector.js
• Enables possibility for more features that require manipulation of HTML (E.g. lazyload images. We can set the data-src attribute directly in the Hexo, and inject the lazyload.js directly to the output, without being limited by the themes)
• Integrate htmlnano directly into Hexo.

[curbengh]

Reminds me of soupault, an SSG that can parse/manipulate HTML.

Integrate htmlnano directly into Hexo.

Do you mean posthtml itself instead? htmlnano is just a minifier like hexo-html-minifier, not everyone uses a minifier.

[SukkaW]

Do you mean posthtml itself instead? htmlnano is just a minifier like hexo-html-minifier, not everyone uses a minifier.

Yeah, not everyone wants a minifier. But I want to make the minifier feature kinda a switch (set to true and boom! enabled) instead of a plugin.

[github-actions[bot]]

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