chore(deps): replace cli-highlight (#4468)

packages/coding-agent/src/utils/html.ts

@@ -0,0 +1,51 @@
+export interface DecodedHtmlEntity {
+	text: string;
+	length: number;
+}
+
+function decodeCodePoint(codePoint: number): string | undefined {
+	if (!Number.isInteger(codePoint) || codePoint < 0 || codePoint > 0x10ffff) {
+		return undefined;
+	}
+	return String.fromCodePoint(codePoint);
+}
+
+export function decodeHtmlEntity(entity: string): string | undefined {
+	switch (entity) {
+		case "amp":
+			return "&";
+		case "lt":
+			return "<";
+		case "gt":
+			return ">";
+		case "quot":
+			return '"';
+		case "apos":
+			return "'";
+	}
+
+	if (entity.startsWith("#x") || entity.startsWith("#X")) {
+		return decodeCodePoint(Number.parseInt(entity.slice(2), 16));
+	}
+
+	if (entity.startsWith("#")) {
+		return decodeCodePoint(Number.parseInt(entity.slice(1), 10));
+	}
+
+	return undefined;
+}
+
+export function decodeHtmlEntityAt(html: string, index: number): DecodedHtmlEntity | undefined {
+	const semicolonIndex = html.indexOf(";", index + 1);
+	if (semicolonIndex === -1 || semicolonIndex - index > 16) {
+		return undefined;
+	}
+
+	const entity = html.slice(index + 1, semicolonIndex);
+	const decoded = decodeHtmlEntity(entity);
+	if (decoded === undefined) {
+		return undefined;
+	}
+
+	return { text: decoded, length: semicolonIndex - index + 1 };
+}