matchText question

Richard Gaskin ambassador at fourthworld.com
Sat Feb 28 10:14:45 EST 2015


Peter M. Brigham wrote:

 > On Feb 27, 2015, at 10:20 PM, Richard Gaskin wrote:
 >
 >> Peter M. Brigham wrote:
 >> > The output I get from revAvailableHandlers looks like this:
 >> >
 >> > M mouseleave 14 17 button id 1026 of group id 1021 of card id 1082
 >> > of stack "NCMHC notes" of stack "/Users/pmbrig/Documents/LiveCode/
 >> > NCMHC notes/  NCMHC notes.rev"
 >> > M mousemove 1 12
 >> > M mouseup 19 131
 >> > F countVisits 133 165
 >> >
 >> > It looks as if the first line is the first handler && the long id
 >> > of the target, followed by the other handlers, M for command and
 >> > F for function, with the starting and ending line numbers. Very
 >> > useful, but an odd format. This is on LC 5.5.1. Can others confirm
 >> > that the output is similar with later versions of LC?
 >>
 >> The cool thing about this format is that it distinguishes handler
 >> type.  In a simple list of handler names you may not know that one
 >> of them is a getProp, the other a function, and which ones are
 >> private.  With this format you get that and more.
 >>
 >> The line numbers let you extract handlers instantly if needed, for
 >> example to quickly compare chunks from one version of a script and
 >> another.
 >>
 >> Uncommon indeed, but also uncommonly useful.
 >
 > Yes, it's a terrifically useful format overall. My question was about
 > that curious first line, however -- whether I can safely delete word
 > 5 to -1 of line 1 (I mistakenly said 'word 4 to -1' in my original
 > post) and get a pure list of handlers with their types and
 > lineoffsets. I don't know why the LC team didn't put the long id of
 > the object in line 1 and start the handler list at line 2, and I
 > wanted to make sure that this oddity persists in later versions of
 > the engine.

Your understanding of the format is consistent with mine, and I use it 
daily in my message path access tools.

As for why it's this way, beats me but to hopefully get an explanation 
I've taken the liberty of CC'ing Ben here so he can check with the 
implementer.

-- 
  Richard Gaskin
  Fourth World Systems
  Software Design and Development for the Desktop, Mobile, and the Web
  ____________________________________________________________________
  Ambassador at FourthWorld.com                http://www.FourthWorld.com




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