Function isImageLine

packages/pi-tui/src/terminal-image.ts:146–153

(line: string)

const ITERM2_PREFIX = "\x1b]1337;File=";

export function isImageLine(line: string): boolean {
	// Fast path: sequence at line start (single-row images)
	if (line.startsWith(KITTY_PREFIX) || line.startsWith(ITERM2_PREFIX)) {
		return true;
	}
	// Slow path: sequence elsewhere (multi-row images have cursor-up prefix)
	return line.includes(KITTY_PREFIX) || line.includes(ITERM2_PREFIX);
}

/**
 * Generate a random image ID for Kitty graphics protocol.