support mixed hiccup/node representations in html

[cemerick]

Currently, html only works with "pure-hiccup" representations, so there's no way to e.g. drop a snippet or other seq of nodes into bits of hiccup-style data.

This patch allows mixed hiccup/node representations to be passed to html so that it only needs to be used once per e.g. transformation.

[cemerick]

FYI, this change is available on Clojars as [org.clojars.cemerick/enlive "1.1.3-SNAPSHOT"], if anyone wants to give it a try without cloning.

[cgrand]

@cemerick, I'm about to merge but I just want to double-check your intent: by "so there's no way to e.g. drop a snippet or other seq of nodes into bits of hiccup-style data" you mean literal nodes. Right?

[cemerick]

Literal-or-not seems to be irrelevant AFAICT. html currently only accepts hiccup-style data; it does not allow one to provide e.g. a seq of enlive/clojure.xml-style nodes as the children of a node defined by a vector. This patch is intended to remedy that, recursively.

[cgrand]

There's some ambiguity with the optional attrs-map in hiccup notation. You can field it by looking at the value under :tag. If it's a keyword, it's a node, if it's a string it's an attrs-map.

[cgrand]

@cemerick thanks and I fixed the ambiguity

[cemerick]

Thanks @cgrand :-)