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Re^2: Simplest Possible Way To Disable Unicode

by tchrist (Pilgrim)
on May 24, 2011 at 19:08 UTC ( #906554=note: print w/replies, xml ) Need Help??

in reply to Re: Simplest Possible Way To Disable Unicode
in thread Simplest Possible Way To Disable Unicode

... you could overload syswrite to unpack the data into bytes before invoking the real syswrite...
Which is just what encoding layers exist for:
% perl -C0 -we 'syswrite(STDOUT, chr(0x500), 1)' | wc -c Wide character in syswrite at -e line 1. 0 Exit 255 % perl -CS -we 'syswrite(STDOUT, chr(0xE9), 1)' | wc -c 2 % perl -CS -we 'syswrite(STDOUT, chr(0x1000), 1)' | wc -c 3 % perl -CS -we 'syswrite(STDOUT, chr(0x01_0000), 1)' | wc -c 4 % perl -CS -we 'syswrite(STDOUT, chr(0x0100_0000), 1)' | wc -c 5 % perl -CS -we 'syswrite(STDOUT, chr(0x1000_0000), 1)' | wc -c 6 % perl -CS -we 'syswrite(STDOUT, chr(0xF000_0000), 1)' | wc -c 7 % perl -CS -M-warnings=portable -we 'syswrite(STDOUT, chr(0x10_0000_00 +00), 1)' | wc -c 13

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