1 | var toString = require('./toString'),
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2 | unescapeHtmlChar = require('./_unescapeHtmlChar');
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3 |
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4 | /** Used to match HTML entities and HTML characters. */
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5 | var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
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6 | reHasEscapedHtml = RegExp(reEscapedHtml.source);
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7 |
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8 | /**
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9 | * The inverse of `_.escape`; this method converts the HTML entities
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10 | * `&`, `<`, `>`, `"`, and `'` in `string` to
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11 | * their corresponding characters.
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12 | *
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13 | * **Note:** No other HTML entities are unescaped. To unescape additional
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14 | * HTML entities use a third-party library like [_he_](https://mths.be/he).
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15 | *
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16 | * @static
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17 | * @memberOf _
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18 | * @since 0.6.0
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19 | * @category String
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20 | * @param {string} [string=''] The string to unescape.
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21 | * @returns {string} Returns the unescaped string.
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22 | * @example
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23 | *
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24 | * _.unescape('fred, barney, & pebbles');
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25 | * // => 'fred, barney, & pebbles'
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26 | */
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27 | function unescape(string) {
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28 | string = toString(string);
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29 | return (string && reHasEscapedHtml.test(string))
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30 | ? string.replace(reEscapedHtml, unescapeHtmlChar)
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31 | : string;
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32 | }
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33 |
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34 | module.exports = unescape;
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