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<section id="string-unescape-expand-escape-sequences">
<h1>string-unescape - expand escape sequences<a class="headerlink" href="#string-unescape-expand-escape-sequences" title="Link to this heading">¶</a></h1>
<section id="synopsis">
<h2>Synopsis<a class="headerlink" href="#synopsis" title="Link to this heading">¶</a></h2>
<div class="highlight-fish-synopsis notranslate"><div class="highlight"><pre><span></span><span class="nf">string</span><span class="w"> </span><span class="no">escape</span><span class="w"> </span><span class="g g-Other">[</span><span class="no">-n</span><span class="w"> </span><span class="g g-Other">|</span><span class="w"> </span><span class="no">--no-quoted</span><span class="g g-Other">]</span><span class="w"> </span><span class="g g-Other">[</span><span class="no">--style=</span><span class="g g-Other">]</span><span class="w"> </span><span class="g g-Other">[</span><span class="no">STRING</span><span class="w"> </span><span class="g g-Other">...]</span>
<span class="nf">string</span><span class="w"> </span><span class="no">unescape</span><span class="w"> </span><span class="g g-Other">[</span><span class="no">--style=</span><span class="g g-Other">]</span><span class="w"> </span><span class="g g-Other">[</span><span class="no">STRING</span><span class="w"> </span><span class="g g-Other">...]</span>
</pre></div>
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<section id="description">
<h2>Description<a class="headerlink" href="#description" title="Link to this heading">¶</a></h2>
<p><code class="docutils literal notranslate"><span class="pre">string</span> <span class="pre">escape</span></code> escapes each <em>STRING</em> in one of several ways.</p>
<p><strong>--style=script</strong> (default) alters the string such that it can be passed back to <code class="docutils literal notranslate"><span class="pre">eval</span></code> to produce the original argument again. By default, all special characters are escaped, and quotes are used to simplify the output when possible. If <strong>-n</strong> or <strong>--no-quoted</strong> is given, the simplifying quoted format is not used. Exit status: 0 if at least one string was escaped, or 1 otherwise.</p>
<p><strong>--style=var</strong> ensures the string can be used as a variable name by hex encoding any non-alphanumeric characters. The string is first converted to UTF-8 before being encoded.</p>
<p><strong>--style=url</strong> ensures the string can be used as a URL by hex encoding any character which is not legal in a URL. The string is first converted to UTF-8 before being encoded.</p>
<p><strong>--style=regex</strong> escapes an input string for literal matching within a regex expression. The string is first converted to UTF-8 before being encoded.</p>
<p><code class="docutils literal notranslate"><span class="pre">string</span> <span class="pre">unescape</span></code> performs the inverse of the <code class="docutils literal notranslate"><span class="pre">string</span> <span class="pre">escape</span></code> command. If the string to be unescaped is not properly formatted it is ignored. For example, doing <code class="docutils literal notranslate"><span class="pre">string</span> <span class="pre">unescape</span> <span class="pre">--style=var</span> <span class="pre">(string</span> <span class="pre">escape</span> <span class="pre">--style=var</span> <span class="pre">$str)</span></code> will return the original string. There is no support for unescaping <strong>--style=regex</strong>.</p>
</section>
<section id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Link to this heading">¶</a></h2>
<div class="highlight-fish-docs-samples notranslate"><div class="highlight"><pre><span></span><span class="gp">>_ </span><span class="nf">echo</span><span class="w"> </span><span class="se">\x07</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="nf">string</span><span class="w"> </span><span class="no">escape</span>
<span class="go">\cg</span>
<span class="gp">>_ </span><span class="nf">string</span><span class="w"> </span><span class="no">escape</span><span class="w"> </span><span class="no">--style=var</span><span class="w"> </span><span class="s1">'a1 b2'</span><span class="se">\u6161</span>
<span class="go">a1_20_b2_E6_85_A1_</span>
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