source: trip-planner-front/node_modules/gauge/wide-truncate.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 828 bytes
Line 
1'use strict'
2var stringWidth = require('string-width')
3var stripAnsi = require('strip-ansi')
4
5module.exports = wideTruncate
6
7function wideTruncate (str, target) {
8 if (stringWidth(str) === 0) return str
9 if (target <= 0) return ''
10 if (stringWidth(str) <= target) return str
11
12 // We compute the number of bytes of ansi sequences here and add
13 // that to our initial truncation to ensure that we don't slice one
14 // that we want to keep in half.
15 var noAnsi = stripAnsi(str)
16 var ansiSize = str.length + noAnsi.length
17 var truncated = str.slice(0, target + ansiSize)
18
19 // we have to shrink the result to account for our ansi sequence buffer
20 // (if an ansi sequence was truncated) and double width characters.
21 while (stringWidth(truncated) > target) {
22 truncated = truncated.slice(0, -1)
23 }
24 return truncated
25}
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