Dan Kogai <dankogai(_at_)dan(_dot_)co(_dot_)jp> writes:
Folks,
I have released Encode ver.1.41 as follows.
Whole:
http://www.dan.co.jp/~dankogai/Encode-1.41.tar.gz
CPAN
Diff:
http://www.dan.co.jp/~dankogai/current-1.41.diff.gz
=head1 CAUTION
I am not sure when the change went in, but current Encode.xs
has broken Tk804.
With $encoding->decode($string,1)
now croaks if character does not map. Croaking is fine as a default
for checking but Tk would like a value of check which does not croak,
but just returns leaving $string starting with the failing character.
I could do a G_EVAL but that is a lot of overhead, and does not tell me
which character position failed (unless $string is updated before
the croak.)
(Tk does 10,000s of probes - found a character XXXX, have font
with encoding YYYY, can YYYY encode XXXX ? I hope to reduce that
number by refining the code but it will still do a lot)
With current Encode I don't get to try any interesting fonts
because it croaks when Tk asks iso-8859-1 if it can do the interesting
character :-(
Right now we have:
check == 0, fallback char (New and overdue - thanks!)
check == -1, perlqq \X{xxxx} style croak
otherwise \N{U+XXXX} style croak
(Did \N{U+XXXX} get (back) in ? - I seem to recall it got removed once.)
You have established the principle of check values meaning something
(which was always the plan).
Can I suggest though that we make it a bit mask - a stab at an initial
set of bits :
check == 0 - fallback
(check & 3) == 1 - croak
(check & 3) == 2 - warn
(check & 3) == 3 - silent return
(check & 4) - \x{xxxx} vs \N{U+XXXX}
If you like make $string adjustment optional
check & 8 - Update Don't bother to update $string.
Thus
check == 0 - fallbacks
check == 1 - \N{U+XXXX} croak
check == 2 - \x{XXXX} croak
check == 3 - silent fail
chack == 4 - Uninteresting
check == 5 - \N{U+XXXX} warn
check == 6 - \x{XXXX} warn
check == 11 - silent fail with $string updated (What Tk wants)
Better schemes welcome.
Another alternative hinted at in old pods was passing check as an SV.
Then if SV was a scalar ref, then set $str to point at fail and return
reason code in the scalar.
PS:
To pick nits - Encode.xs's "layout" looks rather peculiar
with perl source's default tab setting of 8 and expected indent of 4,
and many of files you have touched now have trailing whitespace
on ends of lines.
--
Nick Ing-Simmons
http://www.ni-s.u-net.com/
