#[allow(non_snake_case)]
pub fn match_class(c: core::ffi::c_int, cl: core::ffi::c_int) -> core::ffi::c_int {
let lower = (cl as u8).to_ascii_lowercase();
let res = match lower {
b'a' => (c as u8).is_ascii_alphabetic(),
b'c' => (c as u8).is_ascii_control(),
b'd' => (c as u8).is_ascii_digit(),
b'g' => (c as u8).is_ascii_graphic(),
b'l' => (c as u8).is_ascii_lowercase(),
b'p' => (c as u8).is_ascii_punctuation(),
b's' => (c as u8).is_ascii_whitespace(),
b'u' => (c as u8).is_ascii_uppercase(),
b'w' => (c as u8).is_ascii_alphanumeric(),
b'x' => (c as u8).is_ascii_hexdigit(),
b'z' => c == 0, _ => return if cl == c { 1 } else { 0 },
};
if (cl as u8).is_ascii_lowercase() {
if res {
1
} else {
0
}
} else {
if !res {
1
} else {
0
}
}
}