pub const RESERVED_END: u32 = 0xE00D;Expand description
One past the last reserved codepoint — exclusive, like every other Rust
upper bound. The filter strips MODE_CODE ..RESERVED_END from author
text; keep the two in step. vertext.lua expresses the same bound as
MODE_CODE_POINT + RESERVED_COUNT, and
the_reserved_range_ends_where_the_filter_stops_stripping pins them to
each other.