Under normal mouse mode, positions outside (160,94) result in byte pairs which can be interpreted as a single UTF-8 character;

For there to be an issue, a sequence of UTF-8 characters has be interpreted as an escape sequence, not the other way around.

From higher up in that linked document comes this:

The xterm program recognizes both 8-bit and 7-bit control characters. It generates 7-bit controls (by default) or 8-bit if S8C1T is enabled.

It proceeds to say 0x9B and ESC [ are equivalent, for example.

More relevant, it says 0x90 and ESC P are equivalent. U+05D0 is 0xD7 0x90 in UTF-8.

Are these equivalent for you? 

perl -e'print "\x1B[31m", "foo", "\x1B[0m", "bar", "\n";'
perl -e'print "\x9B31m", "foo", "\x9B0m", "bar", "\n";'

[download]

Perhaps you can tell xterm to stop recognising the "8-bit" codes.

In reply to Re^5: Printing the first letter of the Hebrew alphabet (U05D0) kills script? by ikegami
in thread Printing the first letter of the Hebrew alphabet (U05D0) kills script? by ELISHEVA

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