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Add some missing ANSI/VT sequences

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* CHA: Set horizontal cursor position
* SCOSC: Save cursor
* SCORC: Restore cursor
This commit is contained in:
Patrik Svensson
2026-01-27 00:08:15 +01:00
parent 6a253cd33c
commit f5d12e3a5b
1 changed files with 52 additions and 10 deletions
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58
src/Spectre.Console.Ansi/AnsiWriter.cs
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@@ -299,7 +299,7 @@ public sealed class AnsiWriter
/// <summary>
/// This control function moves the cursor to the specified line and column (1-indexed)
/// by emitting <c>CUP</c>.
/// by emitting <c>CSI row;column H</c>.
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt100-ug/chapter3.html#CUP"/>.
@@ -314,7 +314,7 @@ public sealed class AnsiWriter
}
/// <summary>
/// Moves the cursor to position 1,1 (top left corner) by emitting <c>CUP</c>.
/// Moves the cursor to position 1,1 (top left corner) by emitting <c>CSI H</c>.
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt100-ug/chapter3.html#CUP"/>.
@@ -327,7 +327,7 @@ public sealed class AnsiWriter
}
/// <summary>
/// Moves the cursor up a specified number of lines in the same column by emitting <c>CUU</c>.
/// Moves the cursor up a specified number of lines in the same column by emitting <c>CSI n A</c>.
/// The cursor stops at the top margin.
/// If the cursor is already above the top margin, then the cursor stops at the top line.
/// </summary>
@@ -344,7 +344,7 @@ public sealed class AnsiWriter
/// <summary>
/// This control function moves the cursor down a specified number of lines in the same column
/// by emitting <c>CUD</c>.
/// by emitting <c>CSI n B</c>.
/// The cursor stops at the bottom margin.
/// If the cursor is already below the bottom margin, then the cursor stops at the bottom line.
/// </summary>
@@ -361,7 +361,7 @@ public sealed class AnsiWriter
/// <summary>
/// This control function moves the cursor to the right by a specified number of columns
/// by emitting <c>CUF</c>.
/// by emitting <c>CSI n C</c>.
/// The cursor stops at the right border of the page.
/// </summary>
/// <remarks>
@@ -377,7 +377,7 @@ public sealed class AnsiWriter
/// <summary>
/// This control function moves the cursor to the left by a specified number of columns
/// by emitting <c>CUB</c>.
/// by emitting <c>CSI n D</c>.
/// The cursor stops at the left border of the page.
/// </summary>
/// <remarks>
@@ -392,7 +392,7 @@ public sealed class AnsiWriter
}
/// <summary>
/// Shows the cursor by emitting <c>SM(25h)</c>.
/// Shows the cursor by emitting <c>CSI ? 25 h</c>.
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt100-ug/chapter3.html#SM"/>.
@@ -405,7 +405,7 @@ public sealed class AnsiWriter
}
/// <summary>
/// Hides the cursor by emitting <c>RM(25l)</c>.
/// Hides the cursor by emitting <c>CSI ? 25 l</c>.
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt100-ug/chapter3.html#RM"/>.
@@ -417,6 +417,48 @@ public sealed class AnsiWriter
return this;
}
/// <summary>
/// Saves current cursor position for SCO console mode
/// by emitting <c>CSI s</c>
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt510-rm/SCOSC.html"/>.
/// </remarks>
/// <returns></returns>
public AnsiWriter SaveCursor()
{
WriteCsi("s");
return this;
}
/// <summary>
/// Moves cursor to the position saved by save cursor command in SCO console mode
/// by emitting <c>CSI u</c>
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt510-rm/SCORC.html"/>.
/// </remarks>
/// <returns></returns>
public AnsiWriter RestoreCursor()
{
WriteCsi("u");
return this;
}
/// <summary>
/// Moves the active position to the n-th character of the active line
/// by emitting <c>CSI n G</c>
/// </summary>
/// <remarks>
/// See <see href="https://vt100.net/docs/vt510-rm/CHA.html"/>.
/// </remarks>
/// <param name="position">The horizontal position.</param>
public AnsiWriter CursorHorizontalAbsolute(int position)
{
WriteCsi(position, 'G');
return this;
}
/// <summary>
/// Enters the alternative screen buffer by emitting <c>CSI ? 1049 h</c>.
/// </summary>