hexo/node_modules/word-wrap/index.js

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2023-10-03 11:14:36 +08:00
/*!
* word-wrap <https://github.com/jonschlinkert/word-wrap>
*
* Copyright (c) 2014-2023, Jon Schlinkert.
* Released under the MIT License.
*/
function trimEnd(str) {
let lastCharPos = str.length - 1;
let lastChar = str[lastCharPos];
while(lastChar === ' ' || lastChar === '\t') {
lastChar = str[--lastCharPos];
}
return str.substring(0, lastCharPos + 1);
}
function trimTabAndSpaces(str) {
const lines = str.split('\n');
const trimmedLines = lines.map((line) => trimEnd(line));
return trimmedLines.join('\n');
}
module.exports = function(str, options) {
options = options || {};
if (str == null) {
return str;
}
var width = options.width || 50;
var indent = (typeof options.indent === 'string')
? options.indent
: ' ';
var newline = options.newline || '\n' + indent;
var escape = typeof options.escape === 'function'
? options.escape
: identity;
var regexString = '.{1,' + width + '}';
if (options.cut !== true) {
regexString += '([\\s\u200B]+|$)|[^\\s\u200B]+?([\\s\u200B]+|$)';
}
var re = new RegExp(regexString, 'g');
var lines = str.match(re) || [];
var result = indent + lines.map(function(line) {
if (line.slice(-1) === '\n') {
line = line.slice(0, line.length - 1);
}
return escape(line);
}).join(newline);
if (options.trim === true) {
result = trimTabAndSpaces(result);
}
return result;
};
function identity(str) {
return str;
}