I have a program that reads and writes (among others) strings that should be utf8 encoded. I say "should", because somewhere deep inside the dark corners of that program, sometimes, the utf8 flag on a string is lost. (I'm still investigating where, tips to attack such a problem are welcome.)

When writing the string, the program clears the utf8 flag
and writes a simple string of octets using:

    $s = encode("utf8", $s) if $s =~ /[^\x00-\x7f]/;
    $n = length($s);   # yes, we need length in bytes
    ...
    print $s;

Why would someone test for pure 7-bit strings instead of:

    $s = encode("utf8", $s) if Encode::is_utf8($s);

which seems superior to avoid double utf8 encodings,
should the utf8-flag be lost.  And it's faster.

Or even simply:     Encode::_utf8_off($s)

The problem is that I'm usually wrong.  Am I this time?
Am I missing something?  Or do I need more coffee?


-- Paul Bijnens, Xplanation Tel +32 16 397.511 Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32 16 397.512 http://www.xplanation.com/ email: [EMAIL PROTECTED] *********************************************************************** * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z, ^Q, F6, * * quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye, * * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort, hangup, * * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$, shutdown, * * kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A, ... * * ... "Are you sure?" ... YES ... Phew ... I'm out * ***********************************************************************





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