Hello
I'm not sure but I'd first suspect NFD v. NFC issue.
HFS Plus name is represented in NFD (Normalisation Form D) UTF-16. (Strictly, it is a variant of NFD which differs from NFD in some code ranges.) Application able to convert Unicode encoding forms (UTF-8, UTF-16, etc) transparently is not necessarily able to convert normalisation forms (NFC, NFKC, NFD, NFKD) transparently, in which case we'd need to do it manually.
E.g. 1.
set t to "éléments"
set t1 to NFD(t)
{hexdump_C(t), hexdump_C(t1), t = t1, t's id = t1's id}
(*
on NFD(t)
do shell script "printf '%s' " & t's quoted form & "| iconv -f UTF-8 -t UTF-8-MAC" without altering line endings
end NFD
*)
on NFD(t)
do shell script "printf '%s' " & t's quoted form & "| perl -CS -MUnicode::Normalize -ne 'print NFD($_)'" without altering line endings
end NFD
on hexdump_C(t)
do shell script "printf '%s' " & t's quoted form & "| hexdump -C"
end hexdump_C
As shown above, "éléments" manually inputted in (Apple)Script Editor is in NFC (Normalisation Form C). AppleScript language treats "éléments" in NFD and "éléments" in NFC are equal when compared as string (but not when compared as id).
However, "whose" test in AppleScript is processed by application and it solely depends upon each application whether differences in NFD and NFC are ignored in the test.
E.g. 2.
set t to "éléments"
set t1 to NFD(t)
tell application "Pages" -- Pages v4
tell (make new document)'s body text
set its text to t1
return {words whose it = t, words whose it = t1} --> {{}, {"éléments"}} : NFD ≠ NFC in whose test
end tell
end tell
on NFD(t)
do shell script "printf '%s' " & t's quoted form & "| perl -CS -MUnicode::Normalize -ne 'print NFD($_)'" without altering line endings
end NFD
E.g. 3.
set t to "éléments"
set t1 to NFD(t)
tell application "TextEdit"
tell (make new document)
set its text to t1
return {words whose it = t, words whose it = t1} --> {{"éléments"}, {"éléments"}} : NFD = NFC in whose test
end tell
end tell
on NFD(t)
do shell script "printf '%s' " & t's quoted form & "| perl -CS -MUnicode::Normalize -ne 'print NFD($_)'" without altering line endings
end NFD
Tested under OS X 10.6.8. I don't know about recent iTunes.
Hope this may help.
H
EDIT: fixed typo in code
