Function isBinaryData

site/src/modules/templates/TemplateFiles/isBinaryData.ts:1–22

(s: string)

export function isBinaryData(s: string): boolean {
	// Remove unicode characters from the string like emojis.
	const asciiString = s.replace(/[\u007F-\uFFFF]/g, "");

	// Create a set of all printable ASCII characters (and some control characters).
	const textChars = new Set(
		[7, 8, 9, 10, 12, 13, 27].concat(
			Array.from({ length: 128 }, (_, i) => i + 32),
		),
	);

	const isBinaryString = (str: string): boolean => {
		for (let i = 0; i < str.length; i++) {
			if (!textChars.has(str.charCodeAt(i))) {
				return true;
			}
		}
		return false;
	};

	return isBinaryString(asciiString);
}