Debugging

Jade provides a special method debug which displays the return-value of a method on the standard (error) output stream.
It doesn't change the value, so you can include the method everywhere without changing the programm run. Because debug is not DSSSL-standard you have to include the method in the stylesheet:

(define debug (external-procedure "UNREGISTERED::James Clark//Procedure::debug"))

Example


(element INGREDIENT
   (literal (debug (data (current-node)))))

Problem

debug just displays primitive data-types like integer, strings and lists.
Debug displays just "#<unknown object ...>".

Solution 1

Use the debug function of mulberry tech.
This debug function displays the type of all objects which are unknown to debug.

Solution 2

Use my debug function to displays the grove structure.

Index