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Add dynamic ANSI buffer codes

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This commit is contained in:
Eric Rumsey 2025-05-19 15:31:32 -05:00
parent 2eb65f7c55
commit 9ea2787ba2
1 changed files with 17 additions and 2 deletions
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19
src/lib/util/ansi.ts
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@ -88,6 +88,8 @@ export const ANSI_BUFFERS = {
GET_CURSOR_POSITION: encoder.encode(ANSI.GET_CURSOR_POSITION),
SAVE_CURSOR: encoder.encode(ANSI.SAVE_CURSOR),
RESTORE_CURSOR: encoder.encode(ANSI.RESTORE_CURSOR),
// Screen Control
CLEAR_SCREEN: encoder.encode(ANSI.CLEAR_SCREEN),
CLEAR_LINE: encoder.encode(ANSI.CLEAR_LINE),
CLEAR_TO_END: encoder.encode(ANSI.CLEAR_TO_END),
@ -95,10 +97,19 @@ export const ANSI_BUFFERS = {
CLEAR_BELOW: encoder.encode(ANSI.CLEAR_BELOW),
};
export const ANSI_DYNAMIC = {
// Cursor Control
CURSOR_TO: (x: number, y: number) => encoder.encode(ANSI.CURSOR_TO(x, y)),
CURSOR_UP: (x = 1) => encoder.encode(ANSI.CURSOR_UP(x)),
CURSOR_DOWN: (x = 1) => encoder.encode(ANSI.CURSOR_DOWN(x)),
CURSOR_FORWARD: (x = 1) => encoder.encode(ANSI.CURSOR_FORWARD(x)),
CURSOR_BACK: (x = 1) => encoder.encode(ANSI.CURSOR_BACK(x)),
};
type AnsiBufferKey = keyof typeof ANSI_BUFFERS;
export async function writeAnsi(
codes: AnsiBufferKey[],
codes: (AnsiBufferKey | Uint8Array)[],
text?: string,
autoReset: boolean = true
): Promise<Result<number, Error>> {
@ -106,7 +117,11 @@ export async function writeAnsi(
// Add requested ANSI codes
for (const code of codes) {
buffers.push(ANSI_BUFFERS[code]);
if (code instanceof Uint8Array) {
buffers.push(code);
} else {
buffers.push(ANSI_BUFFERS[code]);
}
}
// Add optional text