[pollen] Is there a nice way to display a hash table in my document?

[飛羽如月]

I've been struggling with this for two hours. I want to have a nice 
overview of all links at the bottom of my document, so I defined a mutable 
hash table and made my link function add an entry to it every time it's 
called.
(define references (make-hash))
(define (link url text [class ""])
  (hash-set! references text url)
  `(a ((href ,url) (target "_blank") (class ,class)) ,text))
My problem now, is how do I actually display this thing?
I've turned the hash table into a list of strings:
from
'#hash(("Blender" . "https://www.blender.org/";)
   ("Racket" . "http://racket-lang.org/";))
with ◊(hash-map references (lambda (x y) (string-append x ": " y))), to
'("Racket: http://racket-lang.org/";
   "Blender: https://www.blender.org/";)

Now I want to feed each element of this list into a tag function, basically 
something like
◊(map p (hash-map references (lambda (x y) (string-append x ": " y
if it actually works. How do I make this work?

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Re: [pollen] Is there a nice way to display a hash table in my document?

[Matthew Butterick]

> On Sep 17, 2017, at 10:02 AM, 飛羽如月  wrote:
> 
> Now I want to feed each element of this list into a tag function, basically 
> something like
> ◊(map p (hash-map references (lambda (x y) (string-append x ": " y
> if it actually works. How do I make this work?

Which part isn't working? Your code works for me. (Though if you're using 
Pollen markup, you'd need to put the result of the `map` operation inside some 
kind of container, so it qualifies as an X-expression)

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Re: [pollen] Is there a nice way to display a hash table in my document?

[飛羽如月]

>
> (Though if you're using Pollen markup, you'd need to put the result of the 
> `map` operation inside some kind of container, so it qualifies as an 
> X-expression)
>
> Right, so that's what I'm looking for. Thanks!

pollen.rkt:
...
(define (reference x)
  ; list x -> txexpr
  `(div ((class "reference")) ,@(map p (sort x stringhttps://groups.google.com/d/optout.