Good find.
If the recipe is consistently reproducible it should be easy and very
convenient for scripters to add the presence linefeed chars to the
circumstances that will trigger a compilation error.
Have you submitted a request for that?
--
Richard Gaskin
Fourth World
LiveCode training and consulting: http://www.fourthworld.com
Webzine for LiveCode developers: http://www.LiveCodeJournal.com
LiveCode Journal blog: http://LiveCodejournal.com/blog.irv
Colin Holgate wrote:
A card script that I had made using 4.6.1 was causing a script error in a
button when used in 4.6.4. The button script had no problem, but it did call
into an unrelated handler in the same card script where the problem line was.
It turned out that one line in that card script had an invisible line feed
character in it. The way line feeds is handled changed in 4.6.3, and whereas
before scripts could have such line feed characters in them without a problem,
now they can't.
There was a clue to where the problem was, in that on opening the stack there
was a script error that showed for the line after the one that was the real
problem. The line it claimed was wrong had no problems, but because of the line
feed character the error was really referring to the second half of the line
before the one that was referring to.
Aside from using a bit of abstract thinking to figure it all out, one clue to
there being a rogue line feed character is that if you comment out the script,
the letters after where the line feed is located don't turn green. If that
happens, selecting the line and retyping exactly what you see will fix it.
So, if you have a stack that worked fine with 4.6.2, but shows problems in
4.6.3 or later, and the line that it's complaining about seems perfectly good,
comment out the line before that one, and see if the text all turns green. If
it doesn't, retype the line.
I suspect the line feed got in there in the first place by me copying and
pasting an example line of code from the documentation. Not the Help perhaps,
but the earlier iPhone docs.
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