We don't bite newbies here... much | |
PerlMonks |
Re^6: Unicode strings internalsby vsespb (Chaplain) |
on May 10, 2013 at 21:30 UTC ( [id://1033039]=note: print w/replies, xml ) | Need Help?? |
The use of a raw filehandle for output of non-binary data That was the problem, that I used raw filehandle for binary-only data. something like this:
However i've received $id in another part of program, like this:
Problem that $record was UTF-8 character string by intention and contained non-ASCII filename. Thus ASCII-only $id had UTF-8 bit set. And thus $line was UTF-8 non-ASCII character string with $binarydata screwed (i.e. bytes converted from Latin-1 to UTF-8). Suprisely everything worked fine, as screwed $binarydata was converted back (bytes from UTF-8 to Latin-1) when I wrote it using syswrite(). So I notices that strange implementation only when added some additional stuff to that code (like I used bytes::length somewhere). So I am thinking now, either I am responsible to make sure that $id never will have UTF-8 bit set. Either I should, in additional, test it with "confess if is_utf8($id)". Or maybe I should never concatenate binary data with known ASCII-only-data.Or maybe even never concatenate with known binary data...
In Section
Seekers of Perl Wisdom
|
|