### The path module contains utility functions for path handling

## Determine if a base value matches an segment index array.
## Returns the value under the match on a hit.
## Returns a default user provided value on no match.
##
## The `base` value can be a record, an array or the literal null.
##
## The `segments` value should be an array where each field is used
## to traverse the `base` value, as follows:
## * String yielding expression segments used for field traversal
## * Integer yielding expression segments used for array traversal
## * A empty segment list yields is considered a match yielding the base value
##
## Examples
##
## > ```tremor
## > use std::path;
## >
## > {"snot": "badger"} == path::try_default({"snot": "badger"}, [], "test")
## > "flook" == path::try_default([{"snot": "badger"}, ["fleek", "flook"]], [1, 1], "test")
## > "badger" == path::try_default([{"snot": "badger"}, ["fleek", "flook"]], [0, "snot"], "test")
## > "fleek" == path::try_default([{"snot": "badger"}, ["fleek", "flook"]], [1, 0], "test")
## > "test" == path::try_default([{"snot": "badger"}, ["fleek", "flook"]], [1, 2], "test")
## >
## > # Statements of the general form
## >  match event of
## >    case %{ absent host } => let event.host = system::hostname()
## >    case _ => event.host
## >  end;
## >
## > # Can now be written more tersely as:
## > # If host is absent, default to the system hostname
## > let host = try_default(event, ["host"], system::hostname())
## > ```
##
## Returns a tremor value
intrinsic fn try_default(base, segments, otherwise) as path::try_default;