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		<id>https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1031%3A_s%2Fkeyboard%2Fleopard%2F</id>
		<title>1031: s/keyboard/leopard/ - Revision history</title>
		<link rel="self" type="application/atom+xml" href="https://www.explainxkcd.com/wiki/index.php?action=history&amp;feed=atom&amp;title=1031%3A_s%2Fkeyboard%2Fleopard%2F"/>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;action=history"/>
		<updated>2026-04-30T20:15:32Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409864&amp;oldid=prev</id>
		<title>81.179.199.253: /* Explanation */ ...additionally, only s/old/new/g would string-substitute *any and all* examples, in something like Perl. Without the closing 'g' (or equivalent flag), it'd only replace the first found match, leaving any others untouched.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409864&amp;oldid=prev"/>
				<updated>2026-04-07T22:30:55Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; ...additionally, only s/old/new/g would string-substitute *any and all* examples, in something like Perl. Without the closing &amp;#039;g&amp;#039; (or equivalent flag), it&amp;#039;d only replace the first found match, leaving any others untouched.&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 22:30, 7 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot; &gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, which is colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, which is colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A command that (in some common scripting and coding languages) helps denote string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;any &lt;/del&gt;occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from the {{w|ed (text editor)|ed text editor}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this format for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A command that (in some common scripting and coding languages) helps denote string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;an &lt;/ins&gt;occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from the {{w|ed (text editor)|ed text editor}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this format for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>81.179.199.253</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409863&amp;oldid=prev</id>
		<title>81.179.199.253: /* Explanation */ Useful to note that it's mot universal. Something like str.replace(&quot;old&quot;,&quot;new&quot;) might be the defacto method in other common circumstances, etc</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409863&amp;oldid=prev"/>
				<updated>2026-04-07T22:19:42Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Explanation: &lt;/span&gt; Useful to note that it&amp;#039;s mot universal. Something like str.replace(&amp;quot;old&amp;quot;,&amp;quot;new&amp;quot;) might be the defacto method in other common circumstances, etc&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 22:19, 7 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot; &gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, which is colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, which is colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A command that helps denote string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where any occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from the {{w|ed (text editor)|ed text editor}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this format for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A command that &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(in some common scripting and coding languages) &lt;/ins&gt;helps denote string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where any occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from the {{w|ed (text editor)|ed text editor}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this format for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>81.179.199.253</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409844&amp;oldid=prev</id>
		<title>Somefan: nvm. this is a command, not a notation</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409844&amp;oldid=prev"/>
				<updated>2026-04-07T19:19:09Z</updated>
		
		<summary type="html">&lt;p&gt;nvm. this is a command, not a notation&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 19:19, 7 April 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l13&quot; &gt;Line 13:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, which is colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, which is colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;One method to &lt;/del&gt;denote &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a &lt;/del&gt;string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where any occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from the {{w|ed (text editor)|ed text editor}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this format for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;A command that helps &lt;/ins&gt;denote string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where any occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from the {{w|ed (text editor)|ed text editor}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this format for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Somefan</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409220&amp;oldid=prev</id>
		<title>DollarStoreBa'al: cat</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=409220&amp;oldid=prev"/>
				<updated>2026-03-31T17:02:49Z</updated>
		
		<summary type="html">&lt;p&gt;cat&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 17:02, 31 March 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l109&quot; &gt;Line 109:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 109:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Regex]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Regex]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Comics edited after their publication]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Comics edited after their publication]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Comics with custom header texts]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>DollarStoreBa'al</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=408324&amp;oldid=prev</id>
		<title>Somefan at 22:06, 17 March 2026</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=408324&amp;oldid=prev"/>
				<updated>2026-03-17T22:06:06Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 22:06, 17 March 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot; &gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Extensions are small programs that install into your {{w|Internet browser}} and change the Web pages as you view them. Some make pages easier to read, some remove ads (the third extension is [https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom AdBlock]) and so on. [[Randall]]'s browser looks like {{w|Google Chrome}} as viewed on a {{w|Mac (computer)|Mac}}, and he has installed at least four extensions on it, which explains the little symbols to the right of the address bar.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Extensions are small programs that install into your {{w|Internet browser}} and change the Web pages as you view them. Some make pages easier to read, some remove ads (the third extension is [https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom AdBlock]) and so on. [[Randall]]'s browser looks like {{w|Google Chrome}} as viewed on a {{w|Mac (computer)|Mac}}, and he has installed at least four extensions on it, which explains the little symbols to the right of the address bar.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as a sequence of characters or words. This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;which is &lt;/ins&gt;colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;One method to denote a string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where any occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from {{w|ed (text editor)|ed}}, this syntax is notably found in shell or scripting utilities for text processing. The title &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;therefore &lt;/del&gt;follows this &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;rule &lt;/del&gt;for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;One method to denote a string substitution is &amp;lt;code&amp;gt;s/old/new/&amp;lt;/code&amp;gt;, where any occurrence of &amp;lt;code&amp;gt;old&amp;lt;/code&amp;gt; is replaced with &amp;lt;code&amp;gt;new&amp;lt;/code&amp;gt;. Originating from &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;the &lt;/ins&gt;{{w|ed (text editor)|ed &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;text editor&lt;/ins&gt;}}, this syntax is notably found in shell or scripting utilities for text processing. The title follows this &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;format &lt;/ins&gt;for changing any occurrence of &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Somefan</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=408251&amp;oldid=prev</id>
		<title>Somefan: missed a spot</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=408251&amp;oldid=prev"/>
				<updated>2026-03-16T22:57:16Z</updated>
		
		<summary type="html">&lt;p&gt;missed a spot&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 22:57, 16 March 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l96&quot; &gt;Line 96:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 96:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Trivia==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Trivia==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;When first posted, the title of the comic was &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/del&gt;s/keyboard/leopard&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; (&lt;/del&gt;the last &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;forward &lt;/del&gt;slash &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;after the word &amp;quot;leopard&amp;quot; was &lt;/del&gt;missing&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;)&lt;/del&gt;. This &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;string &lt;/del&gt;would have failed &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;had it actually been typed as a substitution regex. The title &lt;/del&gt;was later fixed.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;When first posted, the title of the comic was &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;code&amp;gt;&lt;/ins&gt;s/keyboard/leopard&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;/code&amp;gt;, with &lt;/ins&gt;the last slash &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;erroneously &lt;/ins&gt;missing. This would have failed &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;for not following the common syntax and &lt;/ins&gt;was later fixed.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{comic discussion}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{comic discussion}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Somefan</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=408250&amp;oldid=prev</id>
		<title>Somefan: detail on find+replace/substitution. also clarify that s/old/new/ is just syntax, not a command on its own</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=408250&amp;oldid=prev"/>
				<updated>2026-03-16T22:53:15Z</updated>
		
		<summary type="html">&lt;p&gt;detail on find+replace/substitution. also clarify that s/old/new/ is just syntax, not a command on its own&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 22:53, 16 March 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot; &gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Extensions are small programs that install into your {{w|Internet browser}} and change the Web pages as you view them. Some make pages easier to read, some remove ads (the third extension is [https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom AdBlock]) and so on. [[Randall]]'s browser looks like {{w|Google Chrome}} as viewed on a {{w|Mac (computer)|Mac}}, and he has installed at least four extensions on it, which explains the little symbols to the right of the address bar.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Extensions are small programs that install into your {{w|Internet browser}} and change the Web pages as you view them. Some make pages easier to read, some remove ads (the third extension is [https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom AdBlock]) and so on. [[Randall]]'s browser looks like {{w|Google Chrome}} as viewed on a {{w|Mac (computer)|Mac}}, and he has installed at least four extensions on it, which explains the little symbols to the right of the address bar.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;particular &lt;/del&gt;characters or words. &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;The command &lt;/del&gt;to &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;substitute/replace &lt;/del&gt;a string is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;s&amp;quot;, e.g. &amp;quot;&lt;/del&gt;s/old/new/&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;g&amp;quot; replaces &lt;/del&gt;any occurrence of &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/del&gt;old&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot; &lt;/del&gt;with &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/del&gt;new&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;&amp;quot;&lt;/del&gt;. The title therefore &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;contains the command to change &lt;/del&gt;&amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;a sequence of &lt;/ins&gt;characters or words. &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;This can be helpful for &amp;quot;substituting&amp;quot; such patterns with new sequences, colloquially known as a &amp;quot;find and replace&amp;quot; procedure.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;One method &lt;/ins&gt;to &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;denote &lt;/ins&gt;a string &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;substitution &lt;/ins&gt;is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;code&amp;gt;&lt;/ins&gt;s/old/new/&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;/code&amp;gt;, where &lt;/ins&gt;any occurrence of &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;code&amp;gt;&lt;/ins&gt;old&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;/code&amp;gt; is replaced &lt;/ins&gt;with &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;code&amp;gt;&lt;/ins&gt;new&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;/code&amp;gt;. Originating from {{w|ed (text editor)|ed}}, this syntax is notably found in shell or scripting utilities for text processing&lt;/ins&gt;. The title therefore &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;follows this rule for changing any occurrence of &lt;/ins&gt;&amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It's not clear what the extension Randall installed was actually supposed to do, but most extensions that revolve around text replacement are humorous in nature (such as [https://chrome.google.com/webstore/detail/cloud-to-butt-plus/apmlngnhgbnjpajelfkmabhkfapgnoai?hl=en Cloud to Butt], which replaces all instances of &amp;quot;[[908: The Cloud|the cloud]]&amp;quot; with &amp;quot;my butt&amp;quot;).&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Somefan</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=404117&amp;oldid=prev</id>
		<title>Whoop whoop pull up: /* Sentences */</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=404117&amp;oldid=prev"/>
				<updated>2026-01-22T04:59:12Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Sentences&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 04:59, 22 January 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l28&quot; &gt;Line 28:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 28:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Leopards are traditionally solitary animals outside of mating season, or when a mother is raising her cub(s), and so however practical it is to have two leopards in close proximity, it might be a somewhat necessary compromise to give them each their own area in a given workspace. However, it is generally uncommon to put a leopard in a ''tray'' specifically.{{Citation needed}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Leopards are traditionally solitary animals outside of mating season, or when a mother is raising her cub(s), and so however practical it is to have two leopards in close proximity, it might be a somewhat necessary compromise to give them each their own area in a given workspace. However, it is generally uncommon to put a leopard in a ''tray'' specifically.{{Citation needed}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;; Ever cleaned a leopard? They're filthy.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;; Ever cleaned a leopard? They're &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/ins&gt;filthy&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;''&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Most people will use a keyboard for a long time, rarely replacing them unless they are actually broken, and possibly using old ones with new computers (if not integrated within their system, as with laptops). All this time, general detritus, skin, hair and even scraps of food will accumulate upon and beneath the keys unless cleaned thoroughly. Most people don't try to clean a keyboard ''until'' the accumulated grime starts to make typing a problem with less sensitive (or over sensitive!) keys. If you're finding it necessary to clean a keyboard at all, you will probably find quite a lot of filth to clean off/out.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Most people will use a keyboard for a long time, rarely replacing them unless they are actually broken, and possibly using old ones with new computers (if not integrated within their system, as with laptops). All this time, general detritus, skin, hair and even scraps of food will accumulate upon and beneath the keys unless cleaned thoroughly. Most people don't try to clean a keyboard ''until'' the accumulated grime starts to make typing a problem with less sensitive (or over sensitive!) keys. If you're finding it necessary to clean a keyboard at all, you will probably find quite a lot of filth to clean off/out.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Leopards, like most cats, are generally adept at keeping themselves clean. However, as a wild animal they're perhaps considered less 'clean' than one would hope a household or workplace appliance might be, and this would depend upon one's attitude to their grooming by licking themselves all over.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Leopards, like most cats, are generally adept at keeping themselves clean. However, as a wild animal they're perhaps considered less 'clean' than one would hope a household or workplace appliance might be, and this would depend upon one's attitude to their grooming by licking themselves all over.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Whoop whoop pull up</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=384441&amp;oldid=prev</id>
		<title>152.58.32.138: It seems this notice was missed when the incomplete tag was removed.</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=384441&amp;oldid=prev"/>
				<updated>2025-08-18T17:55:21Z</updated>
		
		<summary type="html">&lt;p&gt;It seems this notice was missed when the incomplete tag was removed.&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 17:55, 18 August 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l9&quot; &gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Explanation==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;{{notice|[[#Trivia|''jump to incomplete part)'']]}}&lt;/del&gt;Extensions are small programs that install into your {{w|Internet browser}} and change the Web pages as you view them. Some make pages easier to read, some remove ads (the third extension is [https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom AdBlock]) and so on. [[Randall]]'s browser looks like {{w|Google Chrome}} as viewed on a {{w|Mac (computer)|Mac}}, and he has installed at least four extensions on it, which explains the little symbols to the right of the address bar.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Extensions are small programs that install into your {{w|Internet browser}} and change the Web pages as you view them. Some make pages easier to read, some remove ads (the third extension is [https://chrome.google.com/webstore/detail/adblock/gighmmpiobklfepjocnamgkkbiglidom AdBlock]) and so on. [[Randall]]'s browser looks like {{w|Google Chrome}} as viewed on a {{w|Mac (computer)|Mac}}, and he has installed at least four extensions on it, which explains the little symbols to the right of the address bar.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as particular characters or words. The command to substitute/replace a string is &amp;quot;s&amp;quot;, e.g. &amp;quot;s/old/new/g&amp;quot; replaces any occurrence of &amp;quot;old&amp;quot; with &amp;quot;new&amp;quot;. The title therefore contains the command to change &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;For the joke in this comic, an extension accidentally replaces the word &amp;quot;{{w|Computer keyboard|keyboard}}&amp;quot; with &amp;quot;{{w|leopard}}&amp;quot; in a regex (or {{w|regular expression}}). In computing, a regular expression provides a concise and flexible means to &amp;quot;match&amp;quot; (specify and recognize) patterns in text, such as particular characters or words. The command to substitute/replace a string is &amp;quot;s&amp;quot;, e.g. &amp;quot;s/old/new/g&amp;quot; replaces any occurrence of &amp;quot;old&amp;quot; with &amp;quot;new&amp;quot;. The title therefore contains the command to change &amp;quot;keyboard&amp;quot; into &amp;quot;leopard&amp;quot;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>152.58.32.138</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=384397&amp;oldid=prev</id>
		<title>FaviFake: yea its alright, nobody does</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=1031:_s/keyboard/leopard/&amp;diff=384397&amp;oldid=prev"/>
				<updated>2025-08-17T21:45:18Z</updated>
		
		<summary type="html">&lt;p&gt;yea its alright, nobody does&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 21:45, 17 August 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l44&quot; &gt;Line 44:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 44:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Leopards are animals which eventually die. They are not known to be particularly susceptible to tea, as a substance, although the typically very hot water would not be comfortable and might contribute to the mortality of one in certain circumstances. Either way, it seems like an upsetting experience. &amp;quot;My leopard&amp;quot; suggests (as with several of the above) that a leopard is being kept as a pet, working animal or perhaps a personal zoo inhabitant, and the loss certainly seems more than if a random leopard were accidentally splashed with a drink.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;: Leopards are animals which eventually die. They are not known to be particularly susceptible to tea, as a substance, although the typically very hot water would not be comfortable and might contribute to the mortality of one in certain circumstances. Either way, it seems like an upsetting experience. &amp;quot;My leopard&amp;quot; suggests (as with several of the above) that a leopard is being kept as a pet, working animal or perhaps a personal zoo inhabitant, and the loss certainly seems more than if a random leopard were accidentally splashed with a drink.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Transcript==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Transcript ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[There are two browser windows open on a computer screen.]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[There are two browser windows open on a computer screen.]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[The first browser window, taking up most of the screen, but partly blocked by the other window at the bottom, has a Wikipedia article open. The title of the page can be seen on the active tab.]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:[The first browser window, taking up most of the screen, but partly blocked by the other window at the bottom, has a Wikipedia article open. The title of the page can be seen on the active tab.]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>FaviFake</name></author>	</entry>

	</feed>