chore: vendor

vendor/github.com/charmbracelet/x/ansi/osc.go

@@ -0,0 +1,69 @@
+package ansi
+
+import (
+	"bytes"
+	"strings"
+)
+
+// OscSequence represents an OSC sequence.
+//
+// The sequence starts with a OSC sequence, OSC (0x9D) in a 8-bit environment
+// or ESC ] (0x1B 0x5D) in a 7-bit environment, followed by positive integer identifier,
+// then by arbitrary data terminated by a ST (0x9C) in a 8-bit environment,
+// ESC \ (0x1B 0x5C) in a 7-bit environment, or BEL (0x07) for backwards compatibility.
+//
+//	OSC Ps ; Pt ST
+//	OSC Ps ; Pt BEL
+//
+// See ECMA-48 § 5.7.
+type OscSequence struct {
+	// Data contains the raw data of the sequence including the identifier
+	// command.
+	Data []byte
+
+	// Cmd contains the raw command of the sequence.
+	Cmd int
+}
+
+var _ Sequence = OscSequence{}
+
+// Command returns the command of the OSC sequence.
+func (s OscSequence) Command() int {
+	return s.Cmd
+}
+
+// Params returns the parameters of the OSC sequence split by ';'.
+// The first element is the identifier command.
+func (s OscSequence) Params() []string {
+	return strings.Split(string(s.Data), ";")
+}
+
+// Clone returns a copy of the OSC sequence.
+func (s OscSequence) Clone() Sequence {
+	return OscSequence{
+		Data: append([]byte(nil), s.Data...),
+		Cmd:  s.Cmd,
+	}
+}
+
+// String returns the string representation of the OSC sequence.
+// To be more compatible with different terminal, this will always return a
+// 7-bit formatted sequence, terminated by BEL.
+func (s OscSequence) String() string {
+	return s.buffer().String()
+}
+
+// Bytes returns the byte representation of the OSC sequence.
+// To be more compatible with different terminal, this will always return a
+// 7-bit formatted sequence, terminated by BEL.
+func (s OscSequence) Bytes() []byte {
+	return s.buffer().Bytes()
+}
+
+func (s OscSequence) buffer() *bytes.Buffer {
+	var b bytes.Buffer
+	b.WriteString("\x1b]")
+	b.Write(s.Data)
+	b.WriteByte(BEL)
+	return &b
+}