> On Oct 11, 2017, at 2:56 PM, George Neuner <gneun...@comcast.net> wrote:
>
> Hmm. For completeness? I'm having trouble imaging why you'd want to
> match a literal hash table. Or boxes. The other options make more
> sense. Oh well.
Imagine you’re parsing some JSON. You could parse the JSON into Racket
data structures using string->jsexpr, then use match to extract the data
into bindings:
(match (string->jsexpr some-json-data)
[(hash-table ['name name]
['age age])
(list name age)])
This turns out to be enormously useful, especially when combined with
other match patterns.
Alexis
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