switch to vuepress

1 files changed, 32 insertions, 0 deletions

diff --git a/node_modules/code-point-at/index.js b/node_modules/code-point-at/index.js
new file mode 100644
index 00000000..0432fe6a
--- /dev/null
+++ b/node_modules/code-point-at/index.js
@@ -0,0 +1,32 @@
+/* eslint-disable babel/new-cap, xo/throw-new-error */
+'use strict';
+module.exports = function (str, pos) {
+	if (str === null || str === undefined) {
+		throw TypeError();
+	}
+
+	str = String(str);
+
+	var size = str.length;
+	var i = pos ? Number(pos) : 0;
+
+	if (Number.isNaN(i)) {
+		i = 0;
+	}
+
+	if (i < 0 || i >= size) {
+		return undefined;
+	}
+
+	var first = str.charCodeAt(i);
+
+	if (first >= 0xD800 && first <= 0xDBFF && size > i + 1) {
+		var second = str.charCodeAt(i + 1);
+
+		if (second >= 0xDC00 && second <= 0xDFFF) {
+			return ((first - 0xD800) * 0x400) + second - 0xDC00 + 0x10000;
+		}
+	}
+
+	return first;
+};