CVS commit: src/tests/bin/expr

Module Name:	src
Committed By:	kre
Date:		Tue Jun 30 02:38:35 UTC 2026

Modified Files:
	src/tests/bin/expr: t_expr.sh

Log Message:
tests/bin/expr - fix the regex & length tests for UTF-8 input

If LC_CTYPE is to be set to a UTF-8 charset, the input must be
valid UTF-8 encoded data, or the results will not be what is expected.

0xFF as input is *not* ever valid in a UTF-8 string.   It cannot be
the initial byte of a character (the biggest conceivable value for
that is 0xFC and even that is beyond what current UTF-8 allows, the
actual biggest is 0xF4), and it cannot be a trailing byte, as those
always have 1 0 as the two higest bits (ie: range is 0x80..0xBF)


To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/tests/bin/expr/t_expr.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.