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authorRebecca Turner <me@re-becca.org>2018-04-20 18:26:37 -0700
committerRebecca Turner <me@re-becca.org>2018-05-24 23:24:45 -0700
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treebdac1d062cd4b094bde3a21147bab5d82c792ece /deps/npm/node_modules/wide-align/node_modules/is-fullwidth-code-point/index.js
parentac8226115e2192a7a46ba07789fa5136f74223e1 (diff)
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deps: upgrade npm to 6.1.0
PR-URL: https://github.com/nodejs/node/pull/20190 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Michaƫl Zasso <targos@protonmail.com>
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+'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;
+}