fn indexOfIgnoreCasePos(haystack: []const u8, start_index: usize, needle: []const u8) ?usize

Finds needle in haystack, ignoring case, starting at start_index. Uses Boyer-Moore-Horspool algorithm on large inputs; indexOfIgnoreCasePosLinear on small inputs.

Parameters

haystack: []const u8,
start_index: usize,
needle: []const u8,