Need Script Debugger Tutorial

[Graham Samuel]

I have tried to search the usual sources, but I have not found a 
detailed description of the way the Script Debugger works in 1.1.1. 
For example, what do the 'run', 'trace', 'step into' and 'step over' 
buttons do - the last two seem to do the same thing, which is to 
execute the highlighted line of script. What do the other buttons and 
pull-downs do - I have not found out what the pull-down lists are 
for, for example. Why do some steps not get shown, as in some repeat 
loops, etc?

What I'm trying to do is to trace the path thro a quite long program 
in the most intelligent way possible - I already know from a thread 
of last October that there is no path trace as such. I feel that if I 
knew everything the Script Debugger can do, I'd be in a better 
position to work on my scripting problems.

I'd be glad to find I'd missed a tutorial on debugging - if anyone 
knows of one, please say.

TIA

Graham
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          Graham Samuel / The Living Fossil Co. / UK & France