Inside an Apple Xcode project, I am managing a cut-down J805 installation
which gets embedded in the resulting app. The app (TABULA) is nearing the
beta-test stage and I must attend to questions of security. Such as: its
capacity for harboring concealed trojans.


Xcode has discovered J code I didn't know existed in a folder:
J64-805-user/snap/

This folder seems to be created at installation time of J64-805 itself, and
my mini J installation has inherited it. It is moderately large (88KB), but
not as large as /Applications/j64-805/addons (36.4 MB).


When I open it in osx Finder, it pretends to be empty. But Xcode/Find makes
its contents perfectly visible. More to the point, Xcode allows me to edit
this J code -- and the edit persists across finds.


I recognise some of the contents as J source code I myself have written,
maybe out-of-date code.


++ Can I safely delete J64-805-user/snap/ from my Xcode project folder?
What, if anything, will fall over as a result? Will J64-805-user/snap/ get
re-created inside the distributed app? Maybe even restored?


++ Can the J code inside J64-805-user/snap/ conceivably be executed? I
would like to be reassured it never can.


I have searched http://code.jsoftware.com/wiki/ for the word "snap" but the
results cast no light on the matter for me.


I can take a shrewd guess at what /snap/ is intended to do. But to guess is
not to know. Can anyone help, please?


Ian Clark
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