Multiple Extractions about enfocus

[ckirkendall]

It might be better just to create a get-attrs extractor that returns a map
of all attrs. I will take a look at it this weekend.

CK

On Fri, Feb 28, 2014 at 8:39 AM, Jacob Emcken [email protected]:

I have a couple of times been wanting to extract multiple attributes from
a node, but since it the function insists on a selector I'm forced to call
from multiple times.

{:name (from a-node (get-attr :name))
:value (from a-node (get-attr :value))
:data-type (from a-node (get-attr :data-type))}

Dunno if it is a good idea, but perhaps something along the lines would
make sense?:

(from a-node
:name nil (get-attr :name)
:value nil (get-attr :value)
:data-type nil (get-attr :data-type))

Reply to this email directly or view it on GitHubhttps://github.com//issues/89
.

[clpe04]

I have a similar issue, but I would like to extract a attribute and the text from a node like this

(from a-node
          :text (get-text)
          :name (get-attr :name))

I was wondering if it was possible to overload the from function, so it could handle either :key selector extractor or just :key extractor, this would prevent the need for giving a nil selector

[ckirkendall]

@jacobemcken @clpe04 to do multiple extractions from a single node you can do it like this.

(ns example
    (:require [enfocus.core :refer (get-text this-node get-attr)])
   (:require-marcos [enfocus.macros :refer (from)])

(from a-node
  :text  this-node (get-text)
  :name this-node (get-attr :name))

Hope this helps.

[jacobemcken]

I wasn't aware of the this-node - very pretty solution.
Thanks.

[clpe04]

Thanks for the quick answer, I neither knew about this-node
Your example is very readable and makes perfectly sense together with the sub node form.