ddidderr
b2b248e003
Ports the parsing half of ZIG/src/terminal into the ghostty-vt crate: - Parser state machine with a compile-time generated parse table and the UTF-8 decoder - OSC parser incl. all sub-parsers (titles, colors, clipboard, hyperlinks, semantic prompts/OSC 133, OSC 9 / ConEmu, iTerm2, kitty clipboard, color and text-sizing protocols, context signals) - CSI, SGR, modes table with save/restore, charsets, ansi, device status, mouse shapes, APC, DCS (incl. XTGETTCAP), tmux control-mode parser - color palette / X11 color names, kitty color and graphics command parser Deviations from Zig (documented in docs/rewrite/notes/ghostty-vt-W*.md): parser actions own their payloads instead of borrowing parser buffers; OSC strings are Vec<u8>; non-exhaustive Zig enums gain an Other(raw) variant; tmux regexes replaced by equivalent hand-written matchers. Known follow-up: semantic_prompt.rs carries local copies of the printf-q and percent decoders that belong in ghostty-os. Test Plan: - cargo test -p ghostty-vt: 395 passed, 1 ignored (skipped in Zig too) - cargo clippy -p ghostty-vt --all-targets -- -D warnings: clean
157 lines
3.4 KiB
Rust
157 lines
3.4 KiB
Rust
//! ANSI types (ZIG/src/terminal/ansi.zig).
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/// C0 (7-bit) control characters from ANSI.
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///
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/// This is not complete, control characters are only added to this
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/// as the terminal emulator handles them.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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#[repr(u8)]
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pub enum C0 {
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/// Null
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Nul = 0x00,
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/// Start of heading
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Soh = 0x01,
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/// Start of text
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Stx = 0x02,
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/// Enquiry
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Enq = 0x05,
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/// Bell
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Bel = 0x07,
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/// Backspace
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Bs = 0x08,
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/// Horizontal tab
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Ht = 0x09,
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/// Line feed
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Lf = 0x0A,
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/// Vertical Tab
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Vt = 0x0B,
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/// Form feed
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Ff = 0x0C,
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/// Carriage return
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Cr = 0x0D,
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/// Shift out
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So = 0x0E,
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/// Shift in
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Si = 0x0F,
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}
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impl C0 {
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/// Convert from a raw byte; unknown values return `None` (the Zig enum
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/// is non-exhaustive).
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pub fn from_int(v: u8) -> Option<Self> {
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Some(match v {
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0x00 => Self::Nul,
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0x01 => Self::Soh,
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0x02 => Self::Stx,
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0x05 => Self::Enq,
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0x07 => Self::Bel,
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0x08 => Self::Bs,
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0x09 => Self::Ht,
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0x0A => Self::Lf,
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0x0B => Self::Vt,
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0x0C => Self::Ff,
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0x0D => Self::Cr,
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0x0E => Self::So,
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0x0F => Self::Si,
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_ => return None,
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})
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}
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}
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/// The SGR rendition aspects that can be set, sometimes known as attributes.
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/// The value corresponds to the parameter value for the SGR command (ESC [ m).
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/// Non-exhaustive in Zig; `Other` carries unknown values.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum RenditionAspect {
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Default,
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Bold,
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DefaultFg,
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DefaultBg,
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Other(u16),
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}
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impl RenditionAspect {
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pub fn from_int(v: u16) -> Self {
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match v {
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0 => Self::Default,
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1 => Self::Bold,
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39 => Self::DefaultFg,
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49 => Self::DefaultBg,
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v => Self::Other(v),
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}
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}
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}
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/// The device attribute request type (ESC [ c).
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum DeviceAttributeReq {
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/// Blank
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Primary,
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/// >
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Secondary,
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/// =
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Tertiary,
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}
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/// Possible cursor styles (ESC [ q)
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum CursorStyle {
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Default,
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BlinkingBlock,
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SteadyBlock,
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BlinkingUnderline,
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SteadyUnderline,
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BlinkingBar,
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SteadyBar,
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}
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/// The status line type for DECSSDT. Non-exhaustive in Zig.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum StatusLineType {
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None,
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Indicator,
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HostWritable,
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Other(u16),
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}
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impl StatusLineType {
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pub fn from_int(v: u16) -> Self {
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match v {
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0 => Self::None,
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1 => Self::Indicator,
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2 => Self::HostWritable,
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v => Self::Other(v),
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}
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}
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}
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/// The display to target for status updates (DECSASD).
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum StatusDisplay {
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Main,
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StatusLine,
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}
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/// The possible modify key formats to ESC[>{a};{b}m
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/// Note: this is not complete, we should add more as we support more
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum ModifyKeyFormat {
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Legacy,
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CursorKeys,
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FunctionKeys,
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OtherKeysNone,
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OtherKeysNumericExcept,
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OtherKeysNumeric,
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}
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/// The protection modes that can be set for the terminal. See DECSCA and
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/// ESC V, W.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum ProtectedMode {
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Off,
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/// ESC V, W
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Iso,
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/// CSI Ps " q
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Dec,
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}
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