urbit/base/pub/doc/hoon/runes/hx/hxgl.md
2015-04-29 18:48:45 -04:00

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[haxgal, `#<`, %hxgl](#hxgl)
============================
Prettyprint `++tape`
`#<` is a synthetic hoon that slams the gate [`++noah`]() with `p`. `#<`
is used to produce a [`++tape`]() of the computation passed to it, and
is only used in the irregular form.
Produces
--------
Twig: `[%hxgl p=tusk]`
Sample
------
`p` is a [++tusk]().
Tall form
---------
None
Wide form
---------
None
Irregular form
--------------
<i.p i.t.p i.t.t.p>
Examples
--------
~zod/try=> <1>
"1"
This is the simplest example of `#<`, pass it a constant and it produces
a `++tape` of the constant.
~zod/try=> <`path`"abc">
"/a/b/c"
~zod/try=> <0x5 ~zod 'a'>
"[0x5 ~zod 'a']"
In these cases we use `#<` to produce the result of a simple computation
as a `++tape`.
~zod/try=> <|.(1)>
"<1.gcq [@n <250.yur 41.wda 374.hzt 100.kzl 1.ypj %164>]>"
Here you can see what would normally be the pretty-printed result
produced as a `++tape`.
~zod/try=> (ream '<~>')
[%hxgl p=~[[%bczp p=%null]]]
Using `++ream` to unpack how `#<` is parsed we can see that its sample
is wrapped in a [`$!`]().