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/// Create a CSI-introduced sequence. macro_rules! csi { ($( $l:expr ),*) => { concat!("\x1B[", $( $l ),*) }; } /// Derive a CSI sequence struct. macro_rules! derive_csi_sequence { ($doc:expr, $name:ident, $value:expr) => { #[doc = $doc] #[derive(Copy, Clone)] pub struct $name; impl fmt::Display for $name { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, csi!($value)) } } }; }