Function fz_skip_string 

pub unsafe extern "C" fn fz_skip_string(
    ctx: *mut fz_context,
    stm: *mut fz_stream,
    str_: *const c_char,
) -> c_int

Skip over a given string in a stream. Return 0 if successfully
skipped, non-zero otherwise. As many characters will be skipped
over as matched in the string.