add hw2

node_modules/@iconify/utils/lib/svg/size.js

@@ -0,0 +1,28 @@
+/**
+* Regular expressions for calculating dimensions
+*/
+const unitsSplit = /(-?[0-9.]*[0-9]+[0-9.]*)/g;
+const unitsTest = /^-?[0-9.]*[0-9]+[0-9.]*$/g;
+function calculateSize(size, ratio, precision) {
+	if (ratio === 1) return size;
+	precision = precision || 100;
+	if (typeof size === "number") return Math.ceil(size * ratio * precision) / precision;
+	if (typeof size !== "string") return size;
+	const oldParts = size.split(unitsSplit);
+	if (oldParts === null || !oldParts.length) return size;
+	const newParts = [];
+	let code = oldParts.shift();
+	let isNumber = unitsTest.test(code);
+	while (true) {
+		if (isNumber) {
+			const num = parseFloat(code);
+			if (isNaN(num)) newParts.push(code);
+			else newParts.push(Math.ceil(num * ratio * precision) / precision);
+		} else newParts.push(code);
+		code = oldParts.shift();
+		if (code === void 0) return newParts.join("");
+		isNumber = !isNumber;
+	}
+}
+
+export { calculateSize };