Parse key(value) pairs from a string in the format "INPUT(BEFORE(key1(;;value1) key2(;;value2)) AFTER(key3(;;value3) key4(;;value4)))"
Input string containing key(value) pairs
An object where keys are the field names and values are the corresponding values (ignoring the ";;" prefix)
Parse key(value) pairs from a string in the format "INPUT(BEFORE(key1(;;value1) key2(;;value2)) AFTER(key3(;;value3) key4(;;value4)))"