This script demonstrates J parsing.
It is based on the system supplied trace.ijs
It works, but the user interface could be improved.
Usage:
load the script. new_traceform_'expression'
Also, a facility is provided to execute an expression, producing a parenthesized instance of the expression instead of the usual result.
- paren 'expression'
Click on the button to step through the process of parsing the expression.
Expressions are executed in the base locale.
Also of possible interest is a bugfix release of the original script on which this facility was modeled.