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/* eslint-disable yoda */
'use strict';
const isFullwidthCodePoint = codePoint => {
if (Number.isNaN(codePoint)) {
return false;
}
// Code points are derived from:
// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
if (
codePoint >= 0x1100 && (
codePoint <= 0x115F || // Hangul Jamo
codePoint === 0x2329 || // LEFT-POINTING ANGLE BRACKET
codePoint === 0x232A || // RIGHT-POINTING ANGLE BRACKET
// CJK Radicals Supplement .. Enclosed CJK Letters and Months
(0x2E80 <= codePoint && codePoint <= 0x3247 && codePoint !== 0x303F) ||
// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
(0x3250 <= codePoint && codePoint <= 0x4DBF) ||
// CJK Unified Ideographs .. Yi Radicals
(0x4E00 <= codePoint && codePoint <= 0xA4C6) ||
// Hangul Jamo Extended-A
(0xA960 <= codePoint && codePoint <= 0xA97C) ||
// Hangul Syllables
(0xAC00 <= codePoint && codePoint <= 0xD7A3) ||
// CJK Compatibility Ideographs
(0xF900 <= codePoint && codePoint <= 0xFAFF) ||
// Vertical Forms
(0xFE10 <= codePoint && codePoint <= 0xFE19) ||
// CJK Compatibility Forms .. Small Form Variants
(0xFE30 <= codePoint && codePoint <= 0xFE6B) ||
// Halfwidth and Fullwidth Forms
(0xFF01 <= codePoint && codePoint <= 0xFF60) ||
(0xFFE0 <= codePoint && codePoint <= 0xFFE6) ||
// Kana Supplement
(0x1B000 <= codePoint && codePoint <= 0x1B001) ||
// Enclosed Ideographic Supplement
(0x1F200 <= codePoint && codePoint <= 0x1F251) ||
// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
(0x20000 <= codePoint && codePoint <= 0x3FFFD)
)
) {
return true;
}
return false;
};
module.exports = isFullwidthCodePoint;
module.exports.default = isFullwidthCodePoint;
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