Add meta robots tags helper

[ernestas-poskus]

Adding meta robots tags helper, I can reuse MetaProperty if needed.

[lambda-fairy]

I don't think it's accurate to have two string fields, because not all strings are valid <meta robots> tags.

I think a better interface would be

struct MetaRobots {
    follow: bool,
    index: bool,
}

which the Render impl expands into the full tag.

[lambda-fairy]

Suggest writing this as

meta name="robots" content={
    (self.0.as_ref())
    ", "
    (self.1.as_ref())
} /

since this avoids using the std::fmt machinery.

[ernestas-poskus]

indeed, thanks for the tip !

[ernestas-poskus]

@lfairy hey sorry for forgetting this 1, updated according to your suggestions, for me usage now is a little cumbersome, what do you think about functoin new(index: bool, follow: bool) -> MetaRobots ? :)

[bb010g]

I think your rebase got messed up. You may just want to reset and do a fresh commit on master.

[ernestas-poskus]

I think your rebase got messed up. You may just want to reset and do a fresh commit on master.

you are right, did soft reset and new commit

[lambda-fairy]

This is more efficient:

    content={ (index) "," (follow) }

[lambda-fairy]

@ernestas-poskus I'm okay with adding a new method, as long as the struct fields are kept public.

[ernestas-poskus]

fixed.

tried new

let markup = html! { (MetaRobots::new(true,false)) };

looks odd and not self explanatory left it as is

[lambda-fairy]

Looks good, thanks!