'use strict' var stringWidth = require('string-width') var stripAnsi = require('strip-ansi') module.exports = wideTruncate function wideTruncate (str, target) { if (stringWidth(str) === 0) { return str } if (target <= 0) { return '' } if (stringWidth(str) <= target) { return str } // We compute the number of bytes of ansi sequences here and add // that to our initial truncation to ensure that we don't slice one // that we want to keep in half. var noAnsi = stripAnsi(str) var ansiSize = str.length + noAnsi.length var truncated = str.slice(0, target + ansiSize) // we have to shrink the result to account for our ansi sequence buffer // (if an ansi sequence was truncated) and double width characters. while (stringWidth(truncated) > target) { truncated = truncated.slice(0, -1) } return truncated }