I just stumbled into an interesting limitation in the name of a folderItem.CreateAsFolder.
I had an issue with creating a subfolder in ApplicationData. It never worked. I suspected all sorts of things, especially some sort of new permissions in the current 10.11.4 beta version of EC. Well, it finally dawned on me the rather long name I had picked for the app ID could be the problem :
com.matchsoftware.managerfordingbatfonts
When I changed to com.matchsoftware.mfdf it worked immediately
So I created a small test app as such :
dim f as folderitem = SpecialFolder.UserHome.Child("Downloads")
dim g as FolderItem
dim nom as string = "com.matchsoftware.mana"
for i as integer = 0 to 9
g = f.child(nom)
g.CreateAsFolder
nom = nom+str(i)
next
Well, the result is that the last folder to be created was com.matchsoftware.mana012345678.
So, in practice, the longest name for a CreateAsFolder appears to be 31 characters.
[quote=240656:@Emile Schwarz]That was the case in Mac OS, long time ago. (in fact, for folders, the limitation was 29 chars in Mac OS X before 10.0).
May it be the com.<something> length that is limited to 31 characters ?[/quote]
Even if the app ID was limited in length it would have nothing to do with this issue. It is the folder name that has the issue. I could have chosen any other combination of characters.
dim f as folderitem = SpecialFolder.UserHome.Child(“Downloads”)
dim g as FolderItem
dim nom as string = “com.matchsoftware.mana_leplusbeaudumondecestluiouellecadepend”
g = f.child(nom)
g.CreateAsFolder
and I get the right folder.
In the debugger, g exists and is not Nil, in the Downloads folder, I get that new folder.
There may be some sort of permission issue on OSX. I had a similar problem, wasn’t able to do CreateAsFolder on SharedApplicationData but had no problems when using ApplicationData instead. Trying to catch error as IOexception did not return anything.
I do know at one time (still?) Unix had a 31 character limitation… as a matter of fact I know that the AIX computers at my previous employer had this limitation, as I had to get creative with some naming conventions to keep them under 31 characters