WD Spy is a method to trace all wd input and output. It's useful to debug your own wd code, and to learn how other scripts work, such as J Front End itself. 

wdtrace_z_=: 3 : 0
  '~temp/log.txt' wdtrace_z_ y
:
  if. y do.
    log_z_=: [: 1!:3&(<jpath x) ,@:(,&LF"1)@":
    wd_z_=: ([: ([ log) [: 11!:0 ([ log))"1
  else.
    wd_z_=: 11!:0
  end.
  i.0 0
)
Usage
  • Run the script above

  • Turn on
    wdtrace 1

  • Run wd scripts, e.g. Ctrl+N or Edit|Configure

  • Watch the log file, e.g. temp/log.txt

  • Turn off
    wdtrace 0

    • Scripts/WD Spy (last edited 2008-12-08 10:45:47 by )