PGUtil

Utility Macros

not_null

not_null(item)  returns 1 or 0
   
   empty arrays, empty hashes, strings containing only whitespace are all NULL and return 0
   all undefined quantities are null and return 0

pretty_print

Usage: warn pretty_print( $rh_hash_input, displayMode, level)
           TEXT(pretty_print($ans_hash, displayMode, level));
           TEXT(pretty_print(~~%envir, displayMode, level ));

This can be very useful for printing out HTML messages about objects while debugging