Add support for keeping tags unquoted.

[kevincox]

This reduces the size of the HTML and improves readability.

The current default behaviour is kept the same but an option is provided
to enable the new behaviour. On a future version bump I would flip the
default value.

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• Feature

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• Breaking Change (:label: Major)

It depends what guarantees about the output are provided. This is probably minor as documented but is very likely to break some downstream tests so should probably be treated as a major change.

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[coveralls]

Coverage remained the same at 100.0% when pulling 3492483 on kevincox:unquote into 15d30db on posthtml:master.

[anikethsaha]

Thanks for submitting PR.

This feature looks good to me, just need to see the mentioned tests.

[anikethsaha]

🚀

[anikethsaha]

Although, this is a minification feature. I think this will be the best fit for htmlnano as renderer should not do any minification.

@kevincox What do you think?

cc @Scrum

[kevincox]

I was implementing this so that it could be used by htmlnano. It seems to me that currently posthtml-render has no way to allow emit this syntax which htmlnano would want.

While in my case I am doing this for minification I would also argue that this syntax is more readable and some people would prefer to have it even when not doing minification.

[anikethsaha]

It seems to me that currently posthtml-render has no way to allow emit this syntax which htmlnano would want.

Yeah, omitting these kinds of behavior can not be done by the plugin as of now.

Will merge this after one more approval 👍

[kevincox]

Thinking about it a bit more htmlnano doesn't currently do any modification to the formatting of the HTML, only modification of the AST. Since this change doesn't affect the AST at all it makes even more sense in the renderer than it does in htmlnano.

[anikethsaha]

After merging this, I think it should be added in htmlnano's docs as well about this options 👍

[voischev]

thx