node_modules

1 files changed, 46 insertions, 0 deletions

diff --git a/node_modules/is-fullwidth-code-point/index.js b/node_modules/is-fullwidth-code-point/index.js
new file mode 100644
index 000000000..a7d3e3855
--- /dev/null
+++ b/node_modules/is-fullwidth-code-point/index.js
@@ -0,0 +1,46 @@
+'use strict';
+var numberIsNan = require('number-is-nan');
+
+module.exports = function (x) {
+	if (numberIsNan(x)) {
+		return false;
+	}
+
+	// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1369
+
+	// code points are derived from:
+	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
+	if (x >= 0x1100 && (
+		x <= 0x115f ||  // Hangul Jamo
+		0x2329 === x || // LEFT-POINTING ANGLE BRACKET
+		0x232a === x || // RIGHT-POINTING ANGLE BRACKET
+		// CJK Radicals Supplement .. Enclosed CJK Letters and Months
+		(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
+		// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
+		0x3250 <= x && x <= 0x4dbf ||
+		// CJK Unified Ideographs .. Yi Radicals
+		0x4e00 <= x && x <= 0xa4c6 ||
+		// Hangul Jamo Extended-A
+		0xa960 <= x && x <= 0xa97c ||
+		// Hangul Syllables
+		0xac00 <= x && x <= 0xd7a3 ||
+		// CJK Compatibility Ideographs
+		0xf900 <= x && x <= 0xfaff ||
+		// Vertical Forms
+		0xfe10 <= x && x <= 0xfe19 ||
+		// CJK Compatibility Forms .. Small Form Variants
+		0xfe30 <= x && x <= 0xfe6b ||
+		// Halfwidth and Fullwidth Forms
+		0xff01 <= x && x <= 0xff60 ||
+		0xffe0 <= x && x <= 0xffe6 ||
+		// Kana Supplement
+		0x1b000 <= x && x <= 0x1b001 ||
+		// Enclosed Ideographic Supplement
+		0x1f200 <= x && x <= 0x1f251 ||
+		// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
+		0x20000 <= x && x <= 0x3fffd)) {
+		return true;
+	}
+
+	return false;
+}