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    <title>MongoDB Jira</title>
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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-13199] regex uses too strict index bounds when | is after a metacharacter</title>
                <link>https://jira.mongodb.org/browse/SERVER-13199</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This occurs in 2.4.9 and 2.6.0-rc1.&lt;/p&gt;

&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;{ &quot;_id&quot; : ObjectId(&quot;53228d743704a19f9cb03ea6&quot;), &quot;a&quot; : &quot;foo&quot; }&lt;/span&gt;&lt;/pre&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
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&lt;p/&gt;

&lt;p&gt;The problem is that simpleRegex returns success when it hits most metacharacters, and doesn&apos;t continue on to find the |.&lt;/p&gt;

&lt;p&gt;I suggest that you check the entire regex first for | and immediately bail out with an empty string if it&apos;s find.  (This is not 100% optimal because the | could have been escaped, but it&apos;s certainly correct.)&lt;/p&gt;</description>
                <environment></environment>
        <key id="120470">SERVER-13199</key>
            <summary>regex uses too strict index bounds when | is after a metacharacter</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="glasser">David Glasser</reporter>
                        <labels>
                    </labels>
                <created>Fri, 14 Mar 2014 05:06:53 +0000</created>
                <updated>Thu, 29 Jan 2015 19:57:15 +0000</updated>
                            <resolved>Thu, 29 Jan 2015 19:57:15 +0000</resolved>
                                    <version>2.4.9</version>
                    <version>2.6.0-rc1</version>
                                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="816828" author="david.storch" created="Thu, 29 Jan 2015 19:56:27 +0000"  >&lt;p&gt;This was fixed in commit &lt;a href=&quot;https://github.com/mongodb/mongo/commit/866d3851fcb7a6b230cb2fde7b2a6253ba32eeb5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;866d3851fcb&lt;/a&gt; in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15235&quot; title=&quot;Regex query returns incorrect results when index is present&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15235&quot;&gt;&lt;del&gt;SERVER-15235&lt;/del&gt;&lt;/a&gt;. The fix will be available in version 3.0.0. Closing as a duplicate.&lt;/p&gt;</comment>
                            <comment id="516511" author="glasser" created="Fri, 14 Mar 2014 20:33:31 +0000"  >&lt;p&gt;I&apos;m not sure why this got tagged as JavaScript. It&apos;s a C++ bug, in simpleRegex (in index_bounds_builder.cpp in 2.6).&lt;/p&gt;</comment>
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