chore(i8n,learn): processed translations
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Mrugesh Mohapatra
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id: 59667989bf71cf555dd5d2ff
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title: S-表达式
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title: S-Expressions
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challengeType: 5
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videoUrl: ''
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forumTopicId: 302303
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dashedName: s-expressions
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---
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# --description--
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<p> <a href='https://en.wikipedia.org/wiki/S-Expression' title='wp:S表达式'>S-Expressions</a>是一种解析和存储数据的便捷方式。 </p>任务: <p>为S-Expressions编写一个简单的读取器/解析器,处理引用的和不带引号的字符串,整数和浮点数。 </p><p>该函数应从字符串中读取单个但嵌套的S-Expression,并将其作为(嵌套)数组返回。 </p><p>除非包含在带引号的字符串中,否则可以忽略换行符和其他空格。 </p><p> “ <tt>()</tt> ”内部引用的字符串不会被解释,但会被视为字符串的一部分。 </p><p>处理字符串中的转义引号是可选的;因此“ <tt>(foo”bar)</tt> “可能被视为字符串” <tt>foo“bar</tt> ”,或作为错误。 </p><p>为此,读者无需识别“ <tt>\</tt> ”以进行转义,但如果语言具有适当的数据类型,则还应识别数字。 </p><p>请注意,除了“ <tt>()”</tt> “(” <tt>\</tt> “,如果支持转义)和空格,没有特殊字符。其他任何内容都是允许的,不带引号。 </p><p>读者应该能够阅读以下输入</p><p></p><pre> ((数据“引用数据”123 4.5)
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(数据(!@#(4.5)“(更多”“数据”))))
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</pre><p></p><p>并将其转换为本机数据结构。 (有关本机数据结构的示例,请参阅<a href='http://rosettacode.org/wiki/#Pike' title='#Pike'>Pike</a> , <a href='http://rosettacode.org/wiki/#Python' title='#蟒蛇'>Python</a>和<a href='http://rosettacode.org/wiki/#Ruby' title='#红宝石'>Ruby</a>实现。) </p>
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[S-Expressions](https://en.wikipedia.org/wiki/S-Expression "wp: S-Expression") are one convenient way to parse and store data.
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# --instructions--
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Write a simple reader/parser for S-Expressions that handles quoted and unquoted strings, integers and floats.
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The function should read a single but nested S-Expression from a string and return it as a (nested) array.
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Newlines and other whitespace may be ignored unless contained within a quoted string.
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"`()`" inside quoted strings are not interpreted, but treated as part of the string.
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Handling escaped quotes inside a string is optional; thus "`(foo"bar)`" may be treated as a string "`foo"bar`", or as an error.
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For this, the reader need not recognize "<code>\\</code>" for escaping, but should, in addition, recognize numbers if the language has appropriate data types.
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Note that with the exception of "`()"`" ("<code>\\</code>" if escaping is supported) and whitespace there are no special characters. Anything else is allowed without quotes.
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The reader should be able to read the following input
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<pre>((data "quoted data" 123 4.5)
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(data (!@# (4.5) "(more" "data)")))
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</pre>
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and turn it into a native data structure. (See the [Pike](https://rosettacode.org/wiki/S-Expressions#Pike "\#Pike"), [Python](https://rosettacode.org/wiki/S-Expressions#Python "\#Python") and [Ruby](https://rosettacode.org/wiki/S-Expressions#Ruby "\#Ruby") implementations for examples of native data structures.)
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# --hints--
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`parseSexpr`是一个函数。
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`parseSexpr` should be a function.
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```js
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assert(typeof parseSexpr === 'function');
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```
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`parseSexpr("(data1 data2 data3)")`应返回[“data1”,“data2”,“data3”]“)
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`parseSexpr('(data1 data2 data3)')` should return `['data1', 'data2', 'data3']`
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```js
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assert.deepEqual(parseSexpr(simpleSExpr), simpleSolution);
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```
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`parseSexpr("(data1 data2 data3)")`应该返回一个包含3个元素的数组“)'
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`parseSexpr('(data1 data2 data3)')` should return an array with 3 elements.
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```js
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assert.deepEqual(parseSexpr(basicSExpr), basicSolution);
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