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Re: libgcj/9802: Bug in surrogate handling in Unicode to UTF-8conversion
- From: Mark Wielaard <mark at klomp dot org>
- To: gcc-gnats at gcc dot gnu dot org, jjc at jclark dot com, java-prs at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, nobody at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org
- Date: 22 Feb 2003 14:38:56 +0100
- Subject: Re: libgcj/9802: Bug in surrogate handling in Unicode to UTF-8conversion
- Organization:
Thanks for the bug report.
Your suggested fix seems obviously correct and I verified that making
sure that avail is always decremented makes String.getBytes("UTF-8")
work (read not throw an ArrayIndexOutOfBoundException).
But while creating a test case I noticed that for your example we return
two bytes: {0xf0, 0x90} but other implementations return four bytes
{0xf0, 0x90, 0x8c, 0x80}. I don't know enough of Unicode and UTF-8
encoding to know what is correct or why.
If someone has a quick reference to the relevant definitions and/or a
testsuite for these kind of things that would be higly appreciated.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9802