Interpolate replaces variables in a string with the values from a mapping.

NewPath returns a new Path.

PathMatchAll is a token used as part of a Path to match any key at that level in the nested structure.

PathMatchList is a token used as part of a Path to match items in a list.

Options supported by Interpolate.

Cast a value to a new type, or return an error if the value can't be cast.

LookupValue is a function which maps from variable names to values.

Path is a dotted path of keys to a value in a nested mapping structure.