mirror of https://github.com/ilyakooo0/urbit.git synced 2024-12-19 21:02:01 +03:00

Anton Dyudin 6cbb6b060d Revert "remove docs for demo", "remove odds and ends", "demo network", "DEMO ONLY: root beak as %demo.", "DEMO ONLY: don't show doznec flapping.", "Prinrtf."

This reverts commit 8e1e40d75b3ab15c194b6bf9570f3edc46e2de58.
This reverts commit f073c490f9fd7c5abc033af4857df92229877de7.
This reverts commit f187d2d7e01a54823f3e979af9bbd148b398e7e9.
This reverts commit bc272862a73cfce1b118586ca39d3a377d841f1b.
This reverts commit 30a397513f8890a3406dc7ab91c6e067e3bbfbbb.
This reverts commit 4fc6856fb50d88c20a0f533392ca606641c5f38f.

Conflicts:
	urb/urbit.pill
	urb/zod/base/lib/drum.hoon

2015-06-15 18:10:02 -07:00

671 B

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bucwut `$?` %bcwt

Fork

$? produces a fork, called a %fern. A %fern is a non-empty list of cases.

Produces

Tile: [%fern p=[i=tile t=(list tile)]].

Sample

p is a list of tiles.

Tall form

$?  p
    q
==

Wide form

None

Irregular form

?(p q)

Examples

++  base  ?([%atom p=odor] %noun %cell %bean %null)     ::  axils, @ * ^ ? ~

++base, ? (the irregular form of $?) specifies a list of orthoganal cases for the %axil tile.

~zod/try=> *?(%a %b %c)
%a
~zod/try=> :type; *?(%a %b %c)
%a
{%a %b %c}

671 B Raw Blame History

bucwut $? %bcwt