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It is likely that $'\uXXXX' and $'\UXXXXXXXX' will allow fewer digits in future. However, no digits at all should still be disallowed.
7 lines
161 B
Text
7 lines
161 B
Text
# $FreeBSD$
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# \u without any digits at all remains invalid.
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# Our choice is a parse error.
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v=$( (eval ": \$'\u'") 2>&1 >/dev/null)
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[ $? -ne 0 ] && [ -n "$v" ]
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