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Text in Composite pages, (URLs starting with 'routine' or 'syntax') can be edited by clicking on the link labeled 'in context', and editing the text there.</p> <p>Exit this popup by pressing <Escape>, or clicking on X or on the background.</p> </div> </div> <button class="modal-close is-large" aria-label="close"></button> </div> <div id="left-column" class="tile is-parent is-2 is-hidden"> <div id="left-col-inner"> <div class="tabs" id="tabs"> <ul> <li class="is-active" id="toc-tab"> <a>Table of Contents</a> </li> <li id="index-tab"> <a>Index</a> </li> </ul> </div> <div class="field"> <div class="control has-icons-right"> <input id="toc-filter" class="input" type="text" placeholder="Filter"> <span class="icon is-right has-text-grey"> <i class="fas fa-search is-medium"></i> </span> </div> </div> <div class="raku-sidebar"> <aside id="toc-menu" class="menu"> <ul class="menu-list"> <li><a href="#(Independent_routines)_sub_indir">In Independent routines</a></li> </ul> </aside> <aside id="index-menu" class="menu is-hidden"> </aside> </div> </div> </div> <div id="main-column" class="tile is-parent" style="overflow-x: hidden;"> <div id="main-col-inner"> <section class="raku page-header"> <div class="container px-4"> <div class="raku page-title has-text-centered"> indir </div> <div class="raku page-subtitle has-text-centered"> Combined from primary sources listed below. </div> </div> </section> <section class="raku page-content"><div class="container px-4"><div class="columns one-col"> <h1 id="(Independent_routines)_sub_indir" class="raku-h1"><a href="#___top" title="go to top of document">In Independent routines<a class="raku-anchor" title="direct link" href="#(Independent_routines)_sub_indir">§</a></a></h1> <p> See primary documentation <a href="/type/independent-routines#sub_indir">in context</a> for <b>sub indir</b>. </p><div class="raku-code raku-lang"> <button class="copy-code" title="Copy code"><i class="far fa-clipboard"></i></button> <label>Raku highlighting</label> <div> <pre class="nohighlights"><span class="highlite-KEYWORD">sub</span> <span class="highlite-ROUTINE">indir</span>(<span class="highlite-TYPE">IO</span>() <span class="highlite-NAME_SCALAR">$path</span><span class="highlite-OPERATOR">,</span> <span class="highlite-NAME_CODE">&code</span><span class="highlite-OPERATOR">,</span> <span class="highlite-OPERATOR">:</span><span class="highlite-NAME_SCALAR">$d</span> <span class="highlite-OPERATOR">=</span> <span class="highlite-TYPE">True</span><span class="highlite-OPERATOR">,</span> <span class="highlite-OPERATOR">:</span><span class="highlite-NAME_SCALAR">$r</span><span class="highlite-OPERATOR">,</span> <span class="highlite-OPERATOR">:</span><span class="highlite-NAME_SCALAR">$w</span><span class="highlite-OPERATOR">,</span> <span class="highlite-OPERATOR">:</span><span class="highlite-NAME_SCALAR">$x</span>)</pre> </div> </div> <p>Takes <a href="/type/Callable"><code>Callable</code></a> <code>&code</code> and executes it after locally (to <code>&code</code>) changing <code>$*CWD</code> variable to an <a href="/type/IO/Path"><code>IO::Path</code></a> object based on <code>$path</code>, optionally ensuring the new path passes several file tests. If <code>$path</code> is relative, it will be turned into an absolute path, even if an <a href="/type/IO/Path"><code>IO::Path</code></a> object was given. <strong>NOTE:</strong> that this routine does <em>NOT</em> alter the process's current directory (see <a href="/routine/&*chdir"><code>&*chdir</code></a>). The <code>$*CWD</code> outside of the <code>&code</code> is not affected, even if <code>&code</code> explicitly assigns a new value to <code>$*CWD</code>.</p><p>Returns the value returned by the <code>&code</code> call on success. On failure to successfully change <code>$*CWD</code>, returns <a href="/type/Failure"><code>Failure</code></a>. <strong>WARNING:</strong> keep in mind that lazily evaluated things might end up NOT having the <code>$*CWD</code> set by <code>indir</code> in their dynamic scope by the time they're actually evaluated. Either ensure the generators have their <code>$*CWD</code> set or <a href="/routine/eager">eagerly evaluate</a> them before returning the results from <code>indir</code>:</p> <div class="raku-code raku-lang"> <button class="copy-code" title="Copy code"><i class="far fa-clipboard"></i></button> <label>Raku highlighting</label> <div> <pre class="nohighlights"><span class="highlite-ROUTINE">say</span> <span class="highlite-ROUTINE">indir</span>(<span class="highlite-STRING_DELIMITER">"</span><span class="highlite-STRING">/tmp</span><span class="highlite-STRING_DELIMITER">"</span><span class="highlite-OPERATOR">,</span> { <span class="highlite-KEYWORD">gather</span> { <span class="highlite-ROUTINE">take</span> <span class="highlite-STRING_DELIMITER">"</span><span class="highlite-STRING">.</span><span class="highlite-STRING_DELIMITER">"</span>.<span class="highlite-TYPE">IO</span> } })».CWD; <span class="highlite-COMMENT"># OUTPUT: «(/home/camelia)» </span> <span class="highlite-ROUTINE">say</span> <span class="highlite-ROUTINE">indir</span>(<span class="highlite-STRING_DELIMITER">"</span><span class="highlite-STRING">/tmp</span><span class="highlite-STRING_DELIMITER">"</span><span class="highlite-OPERATOR">,</span> { <span class="highlite-ROUTINE">eager</span> <span class="highlite-KEYWORD">gather</span> { <span class="highlite-ROUTINE">take</span> <span class="highlite-STRING_DELIMITER">"</span><span class="highlite-STRING">.</span><span class="highlite-STRING_DELIMITER">"</span>.<span class="highlite-TYPE">IO</span> } })».CWD; <span class="highlite-COMMENT"># OUTPUT: «(/tmp)» </span> <span class="highlite-ROUTINE">say</span> <span class="highlite-ROUTINE">indir</span>(<span class="highlite-STRING_DELIMITER">"</span><span class="highlite-STRING">/tmp</span><span class="highlite-STRING_DELIMITER">"</span><span class="highlite-OPERATOR">,</span> { <span class="highlite-KEYWORD">my</span> <span class="highlite-NAME_SCALAR">$cwd</span> <span class="highlite-OPERATOR">=</span> <span class="highlite-NAME_SCALAR">$*CWD</span>; <span class="highlite-KEYWORD">gather</span> { <span class="highlite-KEYWORD">temp</span> <span class="highlite-NAME_SCALAR">$*CWD</span> <span class="highlite-OPERATOR">=</span> <span class="highlite-NAME_SCALAR">$cwd</span>; <span class="highlite-ROUTINE">take</span> <span class="highlite-STRING_DELIMITER">"</span><span class="highlite-STRING">.</span><span class="highlite-STRING_DELIMITER">"</span>.<span class="highlite-TYPE">IO</span> } })».CWD; <span class="highlite-COMMENT"># OUTPUT: «(/tmp)»</span></pre> </div> </div> <p>The routine's <code>$path</code> argument can be any object with an IO method that returns an <a href="/type/IO/Path"><code>IO::Path</code></a> object. The available file tests are:</p> <ul class="rakudoc-item"> <li><p><code>:d</code> — check <a href="/routine/d"><code>.d</code></a> returns <code>True</code></p></li> <li><p><code>:r</code> — check <a href="/routine/d"><code>.r</code></a> returns <code>True</code></p></li> <li><p><code>:w</code> — check <a href="/routine/d"><code>.w</code></a> returns <code>True</code></p></li> <li><p><code>:x</code> — check <a href="/routine/d"><code>.x</code></a> returns <code>True</code></p></li> </ul> <p>By default, only <code>:d</code> test is performed.</p> <div class="raku-code raku-lang"> <button class="copy-code" title="Copy code"><i class="far fa-clipboard"></i></button> <label>Raku highlighting</label> <div> <pre class="nohighlights"><span class="highlite-ROUTINE">say</span> <span class="highlite-NAME_SCALAR">$*CWD</span>; <span class="highlite-COMMENT"># OUTPUT: «"/home/camelia".IO» </span><span class="highlite-ROUTINE">indir</span> <span class="highlite-STRING_DELIMITER">'</span><span class="highlite-STRING">/tmp</span><span class="highlite-STRING_DELIMITER">'</span><span class="highlite-OPERATOR">,</span> { <span class="highlite-ROUTINE">say</span> <span class="highlite-NAME_SCALAR">$*CWD</span> }; <span class="highlite-COMMENT"># OUTPUT: «"/tmp".IO» </span><span class="highlite-ROUTINE">say</span> <span class="highlite-NAME_SCALAR">$*CWD</span>; <span class="highlite-COMMENT"># OUTPUT: «"/home/camelia".IO» </span> <span class="highlite-ROUTINE">indir</span> <span class="highlite-STRING_DELIMITER">'</span><span class="highlite-STRING">/not-there</span><span class="highlite-STRING_DELIMITER">'</span><span class="highlite-OPERATOR">,</span> {;}; <span class="highlite-COMMENT"># returns Failure; path does not exist</span></pre> </div> </div></div></div></section> </div> </div> </div> <footer class="footer main-footer"> <div class="container px-4"> <nav class="level"> <div class="level-left"> <div class="level-item"> <a href="/about">About</a> </div> <div class="level-item"> <a id="toggle-theme">Toggle theme</a> </div> </div> <div class="level-right"> <div class="level-item"> <a href="/license">License</a> </div> </div> </nav> </div> </footer> </body> </html>