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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
65 lines
917 B
Markdown
65 lines
917 B
Markdown
[sigwut, `~?`, %sgwt](#sgwt)
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============================
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Conditional printf
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`~?` is a synthetic rune with the same hint effect as `~&`, printing `r`
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if and only if `q` produces `&`, loobean yes.
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Produces
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--------
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Twig: `[%sgwt p=@ud q=twig r=twig s=twig]`
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Sample
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------
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`p` is a [`@ud`](). `q` is a [twig](). `r` is a [twig](). `s` is a
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[twig]().
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Tall form
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---------
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Priority 0 (debug):
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~& q
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r
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Priority 1 (notice):
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~& > q
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r
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Priority 2 (warning):
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~& >> q
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r
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Priority 3 (alarm):
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~& >>> q
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r
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Wide form
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---------
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~&(>> q r)
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Irregular form
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--------------
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None
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Examples
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--------
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~zod/try=> ~?((gth 1 2) 'oops' ~)
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~
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~zod/try=> ~?((gth 1 0) 'oops' ~)
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'oops'
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~
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A simple case of the conditional printf. When our condition evaluates to
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`&` we print our `r`. Most useful in computation dealing with dynamic
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data.
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