hexo-util/dist/word_wrap.js

"use strict";
// https://github.com/rails/rails/blob/v4.2.0/actionview/lib/action_view/helpers/text_helper.rb#L240
function wordWrap(str, options = {}) {
    if (typeof str !== 'string')
        throw new TypeError('str must be a string!');
    const width = options.width || 80;
    const regex = new RegExp(`(.{1,${width}})(\\s+|$)`, 'g');
    const lines = str.split('\n');
    for (let i = 0, len = lines.length; i < len; i++) {
        const line = lines[i];
        if (line.length > width) {
            lines[i] = line.replace(regex, '$1\n').trim();
        }
    }
    return lines.join('\n');
}
module.exports = wordWrap;
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