read json custom function without plugin, FileMaker only 1.0.0

Being unsatisfied with solutions I found on the internet and wanting a solution without plugin I created a set of custom functions that can read a path out of a json-string.

Syntax:

json_path ( json-string ; path )

examples:

json_path( $user_prefs ; "Privileges/Modules" )

json_path( $json_data ; "Menus/Menu[10]/MenuItem[5]/Label" )