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authorDimitri Staessens <dimitri@ouroboros.rocks>2019-10-06 21:37:45 +0200
committerDimitri Staessens <dimitri@ouroboros.rocks>2019-10-06 21:37:45 +0200
commit3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 (patch)
treec7ccc8279b12c4f7bdbbb4270d617e48f51722e4 /node_modules/wrap-ansi/node_modules/string-width/index.js
parent412c104bebc507bea9c94fd53b5bdc4b64cbfe31 (diff)
downloadwebsite-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.tar.gz
website-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.zip
build: Add some required modules for node
Diffstat (limited to 'node_modules/wrap-ansi/node_modules/string-width/index.js')
-rw-r--r--node_modules/wrap-ansi/node_modules/string-width/index.js37
1 files changed, 37 insertions, 0 deletions
diff --git a/node_modules/wrap-ansi/node_modules/string-width/index.js b/node_modules/wrap-ansi/node_modules/string-width/index.js
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index 0000000..b9bec62
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+++ b/node_modules/wrap-ansi/node_modules/string-width/index.js
@@ -0,0 +1,37 @@
+'use strict';
+var stripAnsi = require('strip-ansi');
+var codePointAt = require('code-point-at');
+var isFullwidthCodePoint = require('is-fullwidth-code-point');
+
+// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1345
+module.exports = function (str) {
+ if (typeof str !== 'string' || str.length === 0) {
+ return 0;
+ }
+
+ var width = 0;
+
+ str = stripAnsi(str);
+
+ for (var i = 0; i < str.length; i++) {
+ var code = codePointAt(str, 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;
+};