unmatched text in input should give the user an error

[jshook]

When a recipe like this:

NumberNameToString(); Save('c'); (Load('c') == 'null' ? '', Load('c')); DateTimeParser('yyyy-MM-dd HH:mm:ss.SSSSSSZ');
``` is used, the portion following the `(...)` is unmatched, but it is not thrown as an error.
Either embedded MVEL syntax needs to be supported, or there needs to be an error indicating that the input was not matched for syntax parsing.