`skip until` for filters

Skip elements of the input until a predicate is true.

Signature

> skip until {flags} (predicate)

input	output
table	table
list<any>	list<any>

Skip until the element is positive.

> [-2 0 2 -1] | skip until {|x| $x > 0 }
╭───┬────╮
│ 0 │  2 │
│ 1 │ -1 │
╰───┴────╯

Skip until the element is positive using stored condition.

> let cond = {|x| $x > 0 }; [-2 0 2 -1] | skip until $cond
╭───┬────╮
│ 0 │  2 │
│ 1 │ -1 │
╰───┴────╯

Skip until the field value is positive.

> [{a: -2} {a: 0} {a: 2} {a: -1}] | skip until {|x| $x.a > 0 }
╭───┬────╮
│ # │ a  │
├───┼────┤
│ 0 │  2 │
│ 1 │ -1 │
╰───┴────╯