68 lines
2.8 KiB
Markdown
68 lines
2.8 KiB
Markdown
|
---
|
|||
|
|
title: Tokenize a string with escaping
|
|||
|
|
id: 594faaab4e2a8626833e9c3d
|
|||
|
|
challengeType: 5
|
|||
|
|
videoUrl: ''
|
|||
|
|
localeTitle: 使用转义标记字符串
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
## Description
|
|||
|
|
<section id="description"><p>编写一个函数或程序，可以在分隔符的每个非转义事件中拆分字符串。 </p><p>它应该接受三个输入参数： </p> <b>字符串</b> <b>分隔符字符</b> <b>转义字符</b> <p>它应该输出一个字符串列表。 </p><p>拆分规则： </p>由分隔符分隔的字段将成为输出列表的元素。应保留空字段，即使在开始和结束时也是如此。 <p>转义规则： </p> “Escaped”意味着出现一个尚未自行转义的转义字符。当转义字符位于没有特殊含义的字符之前时，它仍然被视为转义符（但不会做任何特殊操作）。用于转义某些内容的每次出现的转义字符都不应成为输出的一部分。 <p>证明您的函数满足以下测试用例：给定字符串</p><pre>一个^ | UNO || 3 ^^^^ |四^^^ | ^夸| </pre>和使用<pre> | </pre>作为分隔符和<pre> ^ </pre>作为转义字符，您的函数应输出以下数组： <p></p><pre> ['one | uno'，“，'three ^^'，'four ^ | quatro'，”]
|
|||
|
|
</pre></section>
|
|||
|
|
|
|||
|
|
## Instructions
|
|||
|
|
<section id="instructions">
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Tests
|
|||
|
|
<section id='tests'>
|
|||
|
|
|
|||
|
|
```yml
|
|||
|
|
tests:
|
|||
|
|
- text: <code>tokenize</code>是一个函数。
|
|||
|
|
testString: 'assert(typeof tokenize === "function", "<code>tokenize</code> is a function.");'
|
|||
|
|
- text: <code>tokenize</code>应该返回一个数组。
|
|||
|
|
testString: 'assert(typeof tokenize("a", "b", "c") === "object", "<code>tokenize</code> should return an array.");'
|
|||
|
|
- text: '<code>tokenize("one^|uno||three^^^^|four^^^|^cuatro|", "|", "^")</code>应返回[“one | uno”，“”，“three ^^” ，“四个^ | cuatro”，“”]“）'
|
|||
|
|
testString: 'assert.deepEqual(tokenize(testStr1, "|", "^"), res1, "<code>tokenize("one^|uno||three^^^^|four^^^|^cuatro|", "|", "^") </code> should return ["one|uno", "", "three^^", "four^|cuatro", ""]");'
|
|||
|
|
- text: '<code>tokenize("a@&bcd&ef&&@@hi", "&", "@")</code>应返回<code>["a&bcd", "ef", "", "@hi"]</code>'
|
|||
|
|
testString: 'assert.deepEqual(tokenize(testStr2, "&", "@"), res2, "<code>tokenize("a@&bcd&ef&&@@hi", "&", "@")</code> should return <code>["a&bcd", "ef", "", "@hi"]</code>");'
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Challenge Seed
|
|||
|
|
<section id='challengeSeed'>
|
|||
|
|
|
|||
|
|
<div id='js-seed'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
function tokenize(str, esc, sep) {
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
### After Test
|
|||
|
|
<div id='js-teardown'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
console.info('after the test');
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Solution
|
|||
|
|
<section id='solution'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
// solution required
|
|||
|
|
```
|
|||
|
|
</section>
|