Availability:built-in
[semidet]sub_atom_icasechk(+Haystack,
?Start, +Needle)True when Needle is a sub atom of Haystack
starting at
Start. The match is `half case insensitive', i.e., uppercase
letters in Needle only match themselves, while lowercase
letters in Needle match case insensitively. Start
is the first 0-based offset inside Haystack where Needle
matches.107This predicate replaces $apropos_match/2,
used by the help system, while extending it with locating the (first)
match and performing case insensitive prefix matching. We are still not
happy with the name and interface.