Initial commit

node_modules/string-width/index.js

@@ -0,0 +1,35 @@
+'use strict';
+const stripAnsi = require('strip-ansi');
+const isFullwidthCodePoint = require('is-fullwidth-code-point');
+
+module.exports = str => {
+	if (typeof str !== 'string' || str.length === 0) {
+		return 0;
+	}
+
+	let width = 0;
+
+	str = stripAnsi(str);
+
+	for (let i = 0; i < str.length; i++) {
+		const code = str.codePointAt(i);
+
+		// ignore control characters
+		if (code <= 0x1f || (code >= 0x7f && code <= 0x9f)) {
+			continue;
+		}
+
+		// surrogates
+		if (code >= 0x10000) {
+			i++;
+		}
+
+		if (isFullwidthCodePoint(code)) {
+			width += 2;
+		} else {
+			width++;
+		}
+	}
+
+	return width;
+};