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82 lines
1.4 KiB
Plaintext
82 lines
1.4 KiB
Plaintext
:: Parse CSV files with a known schema, then perform queries on the
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:: results.
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::
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|%
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++ text
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%+ cook
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|= =tape
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(crip tape)
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;~ pose
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(cook tape soil:vast)
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non-quote-text
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==
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::
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++ non-quote-text
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(star ;~(less com qit))
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::
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++ parse
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|* cols=(list rule)
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%+ ifix
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:- ;~(sfix ;~(less (just `@`10) (star prn)) (just `@`10))
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(just `@`10)
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(more (just `@`10) (parse-line cols))
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::
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++ parse-line
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|* cols=(list rule)
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?~ cols
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(easy ~)
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?~ t.cols
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i.cols
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;~ plug
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i.cols
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;~(pfix com $(cols t.cols))
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==
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::
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:: inner join
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::
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++ join
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=/ name-side (ream '[left=- right=+]')
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|= [left=(list vase) rite=(list vase) =hoon]
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^- (list vase)
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|- ^- (list vase)
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=* left-loop $
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?~ left
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~
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=/ rote rite
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|- ^- (list vase)
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=* rite-loop $
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?~ rite
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left-loop(left t.left, rite rote)
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=/ slopped-row (slap (slop i.left i.rite) name-side)
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=/ val (slap (slop slopped-row !>(..zuse)) hoon)
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?. =(%& q.val)
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rite-loop(rite t.rite)
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:- slopped-row
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rite-loop(rite t.rite)
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::
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:: filter
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::
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++ where
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|= [rows=(list vase) =hoon]
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^- (list vase)
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%+ skim rows
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|= =vase
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=/ val (slap vase hoon)
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=(%& q.val)
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::
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:: select
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::
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++ select
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|= [=hoon rows=(list vase)]
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^- (list vase)
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%+ turn rows
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|= =vase
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(slap (slop vase !>(..zuse)) hoon)
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::
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:: pretty-print rows
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::
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++ print-rows
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|= rows=(list vase)
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(slog (turn rows sell))
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--
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