add hw2

node_modules/@iconify/utils/lib/emoji/format.js

@@ -0,0 +1,61 @@
+import { convertEmojiSequenceToUTF16, convertEmojiSequenceToUTF32 } from "./convert.js";
+
+const defaultUnicodeOptions = {
+	prefix: "",
+	separator: "",
+	case: "lower",
+	format: "utf-32",
+	add0: false,
+	throwOnError: true
+};
+/**
+* Convert number to string
+*/
+function convert(sequence, options) {
+	const prefix = options.prefix;
+	const func = options.case === "upper" ? "toUpperCase" : "toLowerCase";
+	const cleanSequence = options.format === "utf-16" ? convertEmojiSequenceToUTF16(sequence) : convertEmojiSequenceToUTF32(sequence, options.throwOnError);
+	return cleanSequence.map((code) => {
+		let str = code.toString(16);
+		if (options.add0 && str.length < 4) str = "0".repeat(4 - str.length) + str;
+		return prefix + str[func]();
+	}).join(options.separator);
+}
+/**
+* Convert unicode number to string
+*
+* Example:
+* 	0x1F600 => '1F600'
+*/
+function getEmojiUnicodeString(code, options = {}) {
+	return convert([code], {
+		...defaultUnicodeOptions,
+		...options
+	});
+}
+const defaultSequenceOptions = {
+	...defaultUnicodeOptions,
+	separator: "-"
+};
+/**
+* Convert unicode numbers sequence to string
+*
+* Example:
+* 	[0x1f441, 0xfe0f] => '1f441-fe0f'
+*/
+function getEmojiSequenceString(sequence, options = {}) {
+	return convert(sequence, {
+		...defaultSequenceOptions,
+		...options
+	});
+}
+/**
+* Convert unicode numbers sequence to string
+*
+* Simple version of `getEmojiSequenceString()` without options that otherwise add to bundle
+*/
+function getEmojiSequenceKeyword(sequence) {
+	return sequence.map((code) => code.toString(16)).join("-");
+}
+
+export { getEmojiSequenceKeyword, getEmojiSequenceString, getEmojiUnicodeString };