TrContext type

Methods

descend(tc:TrContext)

Descend into current data, performing all the same transformations.

Example

tr([1,2,[3,4]], Arr -> { ["start"] + descend(B) + ["end"] } )  # ["start", 1, 2, ["start", 3, 4, "end"], "end"]

init(ctx:TrContext, root:Any, transformation:Any)

Undocumented

init(cmd:TrCommand, x:Any, ctx:TrContext)

Undocumented

skip(tc:TrContext)

Skip current object that matched %EX [1,2,"aa"].tr(Int -> skip(Y)) # The action is called with (Any, TrContext); Y is TrContext then.

tr(x:Any, pattern:Any, tc:TrContext)

Checks whether x matches the pattern

Returns

Lit(x) or TrNoMatch()

tr(x:Any, a:Arr, tc:TrContext)

Match / transform x using the pattern in a

Returns

Lit or TrCommand

tr(x:Any, h:Hash, tc:TrContext)

Match / transform x using the pattern in h.

Parameters

x	Hash or HashLike

Returns

Lit or TrCommand

tr(x:Any, a:AnyOf, tc:TrContext)

Match / transform x using the pattern in a. First match shortcuts the evaluation: further items in a are not tried.

Returns

Lit or TrNoMatch

tr(x:Any, pa:PatternAction, tc:TrContext)

Transform x using pa::action of x matches pa::pattern. pa::action will be called with (Any, TrContext). pa::action can either return new data or perform an operation using TrContext. Currently supported operation is skip(TrContext).

Returns

Lit, TrCommand, or TrNoMatch