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[yaffs-website] / node_modules / grunt-uncss / node_modules / lodash / escape.js

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+var escapeHtmlChar = require('./_escapeHtmlChar'),
+    toString = require('./toString');
+
+/** Used to match HTML entities and HTML characters. */
+var reUnescapedHtml = /[&<>"']/g,
+    reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
+
+/**
+ * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
+ * corresponding HTML entities.
+ *
+ * **Note:** No other characters are escaped. To escape additional
+ * characters use a third-party library like [_he_](https://mths.be/he).
+ *
+ * Though the ">" character is escaped for symmetry, characters like
+ * ">" and "/" don't need escaping in HTML and have no special meaning
+ * unless they're part of a tag or unquoted attribute value. See
+ * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
+ * (under "semi-related fun fact") for more details.
+ *
+ * When working with HTML you should always
+ * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
+ * XSS vectors.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category String
+ * @param {string} [string=''] The string to escape.
+ * @returns {string} Returns the escaped string.
+ * @example
+ *
+ * _.escape('fred, barney, & pebbles');
+ * // => 'fred, barney, &amp; pebbles'
+ */
+function escape(string) {
+  string = toString(string);
+  return (string && reHasUnescapedHtml.test(string))
+    ? string.replace(reUnescapedHtml, escapeHtmlChar)
+    : string;
+}
+
+module.exports = escape;