Am 09.07.13 17:56, schrieb Clemens Lang:
Unfortunately the try implemented in tcl 8.6 seems to be TIP #329 [1].
oops, you are right, forgot that (the discussion was in 2008).
At a glace, it seems MacPorts' try indeed conforms to TIP #89, but TIP
#329 no longer provides the "catch" block available in #89, which is
used widely throughout the MacPorts codebase.
I have the feeling, the most (all?) of the usages of "try" in the
MacPorts base
are of the form
try {
incr i 1.0
} catch * {
set i 1
} finally {
puts done
}
actually, most times without the "finally".
The "catch *" is roughly equivalent to "on error",
tcl 8.6 allows also "on break" etc. for other
return codes and as well prefix matching
against a.g. POSIX messages (http://wiki.tcl.tk/8293)
The rough equivalent for "catch *" in tcl 8.6 is
try {
incr i 1.0
} on error {errorMessage} {
puts "trapped: $errorMessage"
set i 1
} finally {
puts done
}
It certainly needs an update in the macports
base, but i would not expect this to be painful.
Let me know, if i can help.
Keeping macports's private tip89 solution is on
the long run probably not worth the potential confusion.
-gustaf
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