There is some overlap with #1 here in that the \ does not get escaped, and the C compiler complains about the unicode character referenced being a control character. Correcting for this (by prepending another backslash to escape it for the C compiler but leave it present for the regexp handling), the code point is apparently ignored—it won’t match a string because of the a.
There is some overlap with #1 here in that the
\
does not get escaped, and the C compiler complains about the unicode character referenced being a control character. Correcting for this (by prepending another backslash to escape it for the C compiler but leave it present for the regexp handling), the code point is apparently ignored—it won’t matcha string
because of thea
.