forked from toolshed/abra
157 lines
4.1 KiB
Go
157 lines
4.1 KiB
Go
package ansi
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import (
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"strconv"
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"strings"
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)
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// RequestNameVersion (XTVERSION) is a control sequence that requests the
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// terminal's name and version. It responds with a DSR sequence identifying the
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// terminal.
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//
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// CSI > 0 q
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// DCS > | text ST
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//
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// See https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-PC-Style-Function-Keys
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const (
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RequestNameVersion = "\x1b[>q"
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XTVERSION = RequestNameVersion
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)
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// RequestXTVersion is a control sequence that requests the terminal's XTVERSION. It responds with a DSR sequence identifying the version.
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//
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// CSI > Ps q
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// DCS > | text ST
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//
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// See https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-PC-Style-Function-Keys
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//
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// Deprecated: use [RequestNameVersion] instead.
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const RequestXTVersion = RequestNameVersion
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// PrimaryDeviceAttributes (DA1) is a control sequence that reports the
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// terminal's primary device attributes.
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//
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// CSI c
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// CSI 0 c
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// CSI ? Ps ; ... c
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//
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// If no attributes are given, or if the attribute is 0, this function returns
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// the request sequence. Otherwise, it returns the response sequence.
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//
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// Common attributes include:
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// - 1 132 columns
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// - 2 Printer port
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// - 4 Sixel
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// - 6 Selective erase
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// - 7 Soft character set (DRCS)
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// - 8 User-defined keys (UDKs)
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// - 9 National replacement character sets (NRCS) (International terminal only)
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// - 12 Yugoslavian (SCS)
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// - 15 Technical character set
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// - 18 Windowing capability
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// - 21 Horizontal scrolling
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// - 23 Greek
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// - 24 Turkish
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// - 42 ISO Latin-2 character set
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// - 44 PCTerm
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// - 45 Soft key map
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// - 46 ASCII emulation
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//
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// See https://vt100.net/docs/vt510-rm/DA1.html
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func PrimaryDeviceAttributes(attrs ...int) string {
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if len(attrs) == 0 {
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return RequestPrimaryDeviceAttributes
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} else if len(attrs) == 1 && attrs[0] == 0 {
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return "\x1b[0c"
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}
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as := make([]string, len(attrs))
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for i, a := range attrs {
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as[i] = strconv.Itoa(a)
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}
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return "\x1b[?" + strings.Join(as, ";") + "c"
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}
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// DA1 is an alias for [PrimaryDeviceAttributes].
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func DA1(attrs ...int) string {
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return PrimaryDeviceAttributes(attrs...)
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}
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// RequestPrimaryDeviceAttributes is a control sequence that requests the
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// terminal's primary device attributes (DA1).
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//
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// CSI c
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//
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// See https://vt100.net/docs/vt510-rm/DA1.html
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const RequestPrimaryDeviceAttributes = "\x1b[c"
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// SecondaryDeviceAttributes (DA2) is a control sequence that reports the
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// terminal's secondary device attributes.
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//
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// CSI > c
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// CSI > 0 c
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// CSI > Ps ; ... c
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//
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// See https://vt100.net/docs/vt510-rm/DA2.html
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func SecondaryDeviceAttributes(attrs ...int) string {
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if len(attrs) == 0 {
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return RequestSecondaryDeviceAttributes
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}
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as := make([]string, len(attrs))
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for i, a := range attrs {
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as[i] = strconv.Itoa(a)
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}
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return "\x1b[>" + strings.Join(as, ";") + "c"
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}
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// DA2 is an alias for [SecondaryDeviceAttributes].
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func DA2(attrs ...int) string {
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return SecondaryDeviceAttributes(attrs...)
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}
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// RequestSecondaryDeviceAttributes is a control sequence that requests the
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// terminal's secondary device attributes (DA2).
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//
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// CSI > c
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//
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// See https://vt100.net/docs/vt510-rm/DA2.html
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const RequestSecondaryDeviceAttributes = "\x1b[>c"
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// TertiaryDeviceAttributes (DA3) is a control sequence that reports the
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// terminal's tertiary device attributes.
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//
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// CSI = c
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// CSI = 0 c
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// DCS ! | Text ST
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//
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// Where Text is the unit ID for the terminal.
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//
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// If no unit ID is given, or if the unit ID is 0, this function returns the
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// request sequence. Otherwise, it returns the response sequence.
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//
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// See https://vt100.net/docs/vt510-rm/DA3.html
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func TertiaryDeviceAttributes(unitID string) string {
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switch unitID {
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case "":
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return RequestTertiaryDeviceAttributes
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case "0":
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return "\x1b[=0c"
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}
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return "\x1bP!|" + unitID + "\x1b\\"
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}
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// DA3 is an alias for [TertiaryDeviceAttributes].
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func DA3(unitID string) string {
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return TertiaryDeviceAttributes(unitID)
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}
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// RequestTertiaryDeviceAttributes is a control sequence that requests the
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// terminal's tertiary device attributes (DA3).
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//
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// CSI = c
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//
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// See https://vt100.net/docs/vt510-rm/DA3.html
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const RequestTertiaryDeviceAttributes = "\x1b[=c"
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