Function onig_sys::onig_search

pub unsafe extern "C" fn onig_search(
    arg1: OnigRegex, 
    str_: *const OnigUChar, 
    end: *const OnigUChar, 
    start: *const OnigUChar, 
    range: *const OnigUChar, 
    region: *mut OnigRegion, 
    option: OnigOptionType
) -> c_int