2015-08-13 03:26:22 +03:00
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zapcap, %zpcb
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2015-02-18 06:03:21 +03:00
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======================
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Path / location trace
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`!_` is a virtual natural hoon that traces the stack if debugging is
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enabled, putting the current path and location range of each rune.
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Produces
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--------
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Twig: `[%zpcb p=spot q=twig]`
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Sample
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------
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`p` is a [`++spot`](). `q` is a [twig]().
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Tall form
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---------
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?! p
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Wide form
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---------
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?!(p)
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Irregular form
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--------------
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!p
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Examples
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--------
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~zod/try=> (ream '20')
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[%dtzy p=%ud q=20]
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~zod/try=> (ream '!:(20)')
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[%zpcb p=[p=/ q=[p=[p=1 q=4] q=[p=1 q=6]]] q=[%dtzy p=%ud q=20]]
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~zod/try=> (ream '=+(20 ~)')
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[%tsls p=[%dtzy p=%ud q=20] q=[%bczp p=%null]]
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~zod/try=> (ream '!:(=+(20 ~))')
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[ %zpcb
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p=[p=/ q=[p=[p=1 q=4] q=[p=1 q=12]]]
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q
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[ %tsls
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p=[%zpcb p=[p=/ q=[p=[p=1 q=7] q=[p=1 q=9]]] q=[%dtzy p=%ud q=20]]
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q=[%zpcb p=[p=/ q=[p=[p=1 q=10] q=[p=1 q=11]]] q=[%bczp p=%null]]
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]
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]
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~zod/try=> =+(20 !!)
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! exit
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~zod/try=> !:(=+(20 !!))
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! /~zod/try/~2014.10.31..21.11.11..be6c/:<[1 4].[1 13]>
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! /~zod/try/~2014.10.31..21.11.11..be6c/:<[1 10].[1 12]>
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! exit
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