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'/wp-content/plugins/syntax-highlighter-and-code-prettifier/scripts/clipboard.swf'; SyntaxHighlighter.all(); </script>  <meta name="twitter:card" content="summary" /> <meta name="twitter:site" content="@briandfoy_perl" /> <meta name="twitter:creator" content="@briandfoy_perl" /> <meta name="twitter:url" content="https://www.programmingperl.org" /> <meta name="twitter:title" content="Programming Perl" /> <meta name="twitter:description" content="Programming Perl" /> <meta name="twitter:image" content="http://www.programmingperl.org/images/camel-180.jpg" />  </head> <body class="home blog wp-embed-responsive hfeed"> <div id="page" class="site"> <div class="site-inner"> <a class="skip-link screen-reader-text" href="#content">Skip to content</a> <header id="masthead" class="site-header"> <div class="site-header-main"> <div class="site-branding"> <h1 class="site-title"><a href="https://www.programmingperl.org/" rel="home">Programming Perl</a></h1> </div> </div> </header> <div id="content" class="site-content"> <div id="primary" class="content-area"> <main id="main" class="site-main"> <article id="post-226" class="post-226 post type-post status-publish format-standard hentry category-history"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2015/10/the-internet-was-built-on-oreilly-books/" rel="bookmark">“The Internet was Built on O’Reilly Books”</a></h2> </header> <div class="entry-content"> <p>In my last post, <a href="/2015/10/tim-oreilly-programming-perl-and-econtalk/">Tim O鈥橰eilly, Programming Perl, and EconTalk</a>, I didn’t mention the other bit I found interesting in Tim’s answers to Russ Robert’s questions. He mentioned a <i>Publishers Weekly</i> cover that featured a stack of O’Reilly books with the tag “The Internet was Built on O’Reilly Books”. </p> <p>I couldn’t track down the cover through regular googling, but I sent a note to Tim complimenting him on the nice interview and asking if he knew the issue. He put Edie Freedman on the job. If you’re a Perl trivia master, you know <a href="http://archive.oreilly.com/pub/a/oreilly//news/ediemals_0400.html">Edie is responsible for the animals covers</a> and specifically the <i>Programming perl</i> cover. She tracked down the cover from February 21, 2000:</p> <p> <a href="https://www.programmingperl.org/2015/10/the-internet-was-built-on-oreilly-books/#more-226" class="more-link">Continue reading<span class="screen-reader-text"> ““The Internet was Built on O’Reilly Books””</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2015/10/the-internet-was-built-on-oreilly-books/" rel="bookmark"><time class="entry-date published" datetime="2015-10-28T05:25:58+00:00">October 28, 2015</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/history/" rel="category tag">History</a></span> </footer> </article> <article id="post-220" class="post-220 post type-post status-publish format-standard hentry category-popular-culture"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2015/10/tim-oreilly-programming-perl-and-econtalk/" rel="bookmark">Tim O’Reilly, Programming Perl, and EconTalk</a></h2> </header> <div class="entry-content"> <p>Tim O’Reilly mentioned Perl in <a href="http://www.econtalk.org/archives/2015/10/tim_oreilly_on.html" alt="Tim O'Reilly on Technology and Work, October 5, 2015">his interview with Russ Roberts on Econ Talk</a> on . He points to <i>Programming Perl</i> as the key points in the history of O’Reilly Media. Besides the Perl shoutouts, Tim talks about several other very interesting things. </p> <p><br clear="all"/></p> <div class="image center" align="center"> <div> <a data-flickr-embed="true" href="https://www.flickr.com/photos/lucasartoni/2966993398/in/photolist-5wbBLA-m6G9a-b5TDW-5wbG4L-3YFGW-dwBWk-m6Gta-5nRZQm-m6G2y-m6Ght-aDfNC-aDfy8-3Z6CMo-5B9i2Q-woPXG-c1PL5L-8Vou4W-c1PMHQ-aDiRu-aDiRL-6tXAtJ-6tTskT-6tXAsA-5vB6Vv-9Me1yY-AoqF-phqVtR-ph9S2P-oZVHQP-5EjHi-p8hbs-4ws2p4-dTq5R-dTq7x-dTq6x-6sJJnp-6sJJcB-6sNWFE-6sJP8a-6sJEJ2-6sNT4Q-6sJFrV-6sNTyY-6sJF1F-6sJH1c-6sNWuy-6sNPy9-6sNMd3-6sJLu2-6sJNv6" title="Alessio e Tim"><img loading="lazy" src="https://farm4.staticflickr.com/3202/2966993398_5423433fd8.jpg" width="500" height="331" alt="Alessio e Tim" /></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script> </div> </div> <p> <a href="https://www.programmingperl.org/2015/10/tim-oreilly-programming-perl-and-econtalk/#more-220" class="more-link">Continue reading<span class="screen-reader-text"> “Tim O’Reilly, Programming Perl, and EconTalk”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2015/10/tim-oreilly-programming-perl-and-econtalk/" rel="bookmark"><time class="entry-date published" datetime="2015-10-27T18:47:20+00:00">October 27, 2015</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/popular-culture/" rel="category tag">Popular Culture</a></span> </footer> </article> <article id="post-216" class="post-216 post type-post status-publish format-standard hentry category-publishing"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2015/08/update-your-programming-perl-ebook/" rel="bookmark">Update your Programming Perl ebook!</a></h2> </header> <div class="entry-content"> <p>If you bought the e-book version of <i>Programming Perl, 4th Edition</i>, you should be able to get the updated copy of it. In that, we fix various typos and thought errors reported through the <a href="http://www.oreilly.com/catalog/errata.csp?isbn=9780596004927">errata system</a>. And, we refresh the bits so all those stale 1s and 0s are replaced with new ones.</p> <p><br clear="all" /></p> <div class="image center"> <img src="/downloads/updated-ebook.png" /> </div> <p></p> <p>You can <a href="http://www.oreilly.com/register/">register your paper copy of any O’Reilly book</a> to get a discount on the e-version. Better than that, you can connect your Dropbox account (<a href="https://db.tt/r9harcWr">referral link</a>) to allow O’Reilly to <a href="http://shop.oreilly.com/category/customer-service/dropbox.do">automatically sync your purchases and updates</a>.</p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2015/08/update-your-programming-perl-ebook/" rel="bookmark"><time class="entry-date published" datetime="2015-08-26T00:35:39+00:00">August 26, 2015</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/publishing/" rel="category tag">Publishing</a></span> </footer> </article> <article id="post-198" class="post-198 post type-post status-publish format-standard hentry category-chapters category-string-formats"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2014/07/packs-c0-and-u0/" rel="bookmark">pack’s C0 and U0</a></h2> </header> <div class="entry-content"> <p>Perl’s <code>unpack</code> can work with character data in two ways. The <code>C</code> template does characters and the <code>U</code> does the UTF-8. That they exist doesn’t mean that you should use them, but they exist and I inadvertently overlooked some of their behavior for <i>Programming Perl</i>. These focus a bit too much on Perl’s internal representation of a string, which we shouldn’t do. <a href="https://www.programmingperl.org/2014/07/packs-c0-and-u0/#more-198" class="more-link">Continue reading<span class="screen-reader-text"> “pack’s C0 and U0”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2014/07/packs-c0-and-u0/" rel="bookmark"><time class="entry-date published" datetime="2014-07-31T02:37:06+00:00">July 31, 2014</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/chapters/" rel="category tag">Chapters</a>, <a href="https://www.programmingperl.org/category/chapters/string-formats/" rel="category tag">String Formats</a></span> </footer> </article> <article id="post-184" class="post-184 post type-post status-publish format-standard hentry category-popular-culture"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2013/12/programming-perl-in-popular-culture/" rel="bookmark">Programming Perl in popular culture</a></h2> </header> <div class="entry-content"> <p>While watching <i><a href="http://www.fox.com/brooklyn-nine-nine">Brooklyn 99</a></i>, the new Andy Samberg show, I notice in the background of the police psychologist’s office a curious blue-spined book. The trade dress of O’Reilly books makes them instantly identifiable from a distance, even when blurry (which means the branding people got it right). I had to look at it on pause for a few seconds to convince myself I wasn’t seeing things. <a href="https://www.programmingperl.org/2013/12/programming-perl-in-popular-culture/#more-184" class="more-link">Continue reading<span class="screen-reader-text"> “Programming Perl in popular culture”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2013/12/programming-perl-in-popular-culture/" rel="bookmark"><time class="entry-date published" datetime="2013-12-07T03:20:33+00:00">December 7, 2013</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/popular-culture/" rel="category tag">Popular Culture</a></span><span class="comments-link"><a href="https://www.programmingperl.org/2013/12/programming-perl-in-popular-culture/#comments">4 Comments<span class="screen-reader-text"> on Programming Perl in popular culture</span></a></span> </footer> </article> <article id="post-179" class="post-179 post type-post status-publish format-standard hentry category-programming-practice tag-github tag-perl-critic tag-perlmonks"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2013/10/camel-perlcritic-policies/" rel="bookmark">Camel Perl::Critic Policies</a></h2> </header> <div class="entry-content"> <p><i>Update: This project has been absorbed into the main <a href="https://github.com/Perl-Critic">Perl::Critic project</a>.</i></p> <p>Chapter 21 of <i>Programming Perl</i> recommends several programming practices and styles. <a href="http://perlmonks.org/?node_id=1057058">Tom meditated on Perlmonks</a> that he’d like to have <a href="http://www.metacpan.org/module/Perl::Critic">Perl::Critic</a> policies for those. <a href="https://www.programmingperl.org/2013/10/camel-perlcritic-policies/#more-179" class="more-link">Continue reading<span class="screen-reader-text"> “Camel Perl::Critic Policies”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2013/10/camel-perlcritic-policies/" rel="bookmark"><time class="entry-date published" datetime="2013-10-07T17:05:46+00:00">October 7, 2013</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/programming-practice/" rel="category tag">Programming Practice</a></span><span class="tags-links"><span class="screen-reader-text">Tags </span><a href="https://www.programmingperl.org/tag/github/" rel="tag">github</a>, <a href="https://www.programmingperl.org/tag/perl-critic/" rel="tag">perl critic</a>, <a href="https://www.programmingperl.org/tag/perlmonks/" rel="tag">perlmonks</a></span> </footer> </article> <article id="post-160" class="post-160 post type-post status-publish format-standard hentry category-publishing"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2013/07/the-brazilian-programming-perl/" rel="bookmark">The Brazilian Programming Perl</a></h2> </header> <div class="entry-content"> <p>There’s a Brazilian Portuguese translation of the Camel book. Randal Schwartz, who is at the <a href="http://softwarelivre.org/fisl13/">13th F贸rum Internacional Software Livre (FISL)</a>, snapped this pic for <a href="https://instagram.com/p/NlkKT2pP8R/">his Instagram</a>: <a href="https://www.programmingperl.org/2013/07/the-brazilian-programming-perl/#more-160" class="more-link">Continue reading<span class="screen-reader-text"> “The Brazilian Programming Perl”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2013/07/the-brazilian-programming-perl/" rel="bookmark"><time class="entry-date published" datetime="2013-07-27T21:10:53+00:00">July 27, 2013</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/publishing/" rel="category tag">Publishing</a></span> </footer> </article> <article id="post-172" class="post-172 post type-post status-publish format-standard hentry category-giveaways"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2012/08/scott-hildreth-wins-the-programming-perl-cover/" rel="bookmark">Scott Hildreth wins the Programming Perl cover</a></h2> </header> <div class="entry-content"> <p>Scott Hildreth, wearing his YAPC::NA::Madison shirt, shows off the framed and signed <i>Programming Perl</i> cover he <a href="https://www.programmingperl.org/2012/06/win-a-framed-cover-of-programming-perl/">won from this blog</a>. I never keep this swag for very long, so you might get some too if you follow along. <a href="https://www.programmingperl.org/2012/08/scott-hildreth-wins-the-programming-perl-cover/#more-172" class="more-link">Continue reading<span class="screen-reader-text"> “Scott Hildreth wins the Programming Perl cover”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2012/08/scott-hildreth-wins-the-programming-perl-cover/" rel="bookmark"><time class="entry-date published" datetime="2012-08-19T21:18:04+00:00">August 19, 2012</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/giveaways/" rel="category tag">Giveaways</a></span> </footer> </article> <article id="post-157" class="post-157 post type-post status-publish format-standard hentry category-promotions"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2012/07/oscon-discounts-for-perl-books/" rel="bookmark">OSCON discounts for the Camel book</a></h2> </header> <div class="entry-content"> <p>During <a href="http://www.oscon.com">OSCON</a>, the <a href="http://shop.oreilly.com/product/9780596004927.do?code=CFOSCON"><i>Programming Perl</i></a> ebook is $19.99 (50% the list price) when you buy it through <a href="http://shop.oreilly.com/category/deals/oscon.do?cmp=tw-code-lp-opensource-geeks">the open source geeks promotion</a> or by using offer code CFOSCON. <a href="https://www.programmingperl.org/2012/07/oscon-discounts-for-perl-books/#more-157" class="more-link">Continue reading<span class="screen-reader-text"> “OSCON discounts for the Camel book”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2012/07/oscon-discounts-for-perl-books/" rel="bookmark"><time class="entry-date published" datetime="2012-07-16T20:44:44+00:00">July 16, 2012</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/promotions/" rel="category tag">promotions</a></span> </footer> </article> <article id="post-154" class="post-154 post type-post status-publish format-standard hentry category-giveaways"> <header class="entry-header"> <h2 class="entry-title"><a href="https://www.programmingperl.org/2012/06/win-a-framed-cover-of-programming-perl/" rel="bookmark">Win a framed cover of Programming Perl</a></h2> </header> <div class="entry-content"> <p>A framed cover of <i>Programming Perl</i> showed up in my mail today. Our publisher, O’Reilly Media, has been doling these out to authors in the past couple of months. Tom got one about a week ago and I was slightly jealous, even though I already have one for <i>Learning Perl</i>. So what am I going to do with this one? I’ve signed the front glass, not wanting to disturb the very nice framing job, which also means that if you hate my signature, a little rubbing alcohol should remove that easily. <a href="https://www.programmingperl.org/2012/06/win-a-framed-cover-of-programming-perl/#more-154" class="more-link">Continue reading<span class="screen-reader-text"> “Win a framed cover of Programming Perl”</span></a></p> </div> <footer class="entry-footer"> <span class="byline"><span class="author vcard"><img alt='' src='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=49&d=mm&r=g' srcset='https://secure.gravatar.com/avatar/edd8638efe875601bfe394a8aea5b16d?s=98&d=mm&r=g 2x' class='avatar avatar-49 photo' height='49' width='49' loading='lazy'/><span class="screen-reader-text">Author </span> <a class="url fn n" href="https://www.programmingperl.org/author/briandfoy/">briandfoy</a></span></span><span class="posted-on"><span class="screen-reader-text">Posted on </span><a href="https://www.programmingperl.org/2012/06/win-a-framed-cover-of-programming-perl/" rel="bookmark"><time class="entry-date published" datetime="2012-06-29T00:25:21+00:00">June 29, 2012</time><time class="updated" datetime="2022-05-13T06:05:17+00:00">May 13, 2022</time></a></span><span class="cat-links"><span class="screen-reader-text">Categories </span><a href="https://www.programmingperl.org/category/giveaways/" rel="category tag">Giveaways</a></span><span class="comments-link"><a href="https://www.programmingperl.org/2012/06/win-a-framed-cover-of-programming-perl/#comments">2 Comments<span class="screen-reader-text"> on Win a framed cover of Programming Perl</span></a></span> </footer> </article> <nav class="navigation pagination" role="navigation" aria-label="Posts"> <h2 class="screen-reader-text">Posts navigation</h2> <div class="nav-links"><span aria-current="page" class="page-numbers current"><span class="meta-nav screen-reader-text">Page </span>1</span> <a 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