I am currently working on cleaning up an existing codebase and one of the aspects involve using PHPCS. This is my phpcs.xml file at the moment:
<?xml version='1.0'?>
<ruleset name='MyApplication'>
    <arg name='encoding' value='utf-8'/>
    <arg name='extensions' value='php'/>
    <arg name='warning-severity' value='0'/>
    <arg name='colors'/>
    <arg value='p'/>
    <exclude-pattern>vendor/*</exclude-pattern>
    <exclude-pattern>node_modules/*</exclude-pattern>
    <rule ref='PSR1'></rule>
</ruleset>
I'd like to modify it so that PSR-2 is applied to certain directories (e.g. foo/ and bar/) while the remaining directories are checked against PSR-1.
I found the <exclude-pattern> option in the manual that can be placed as child elements of the <rule> element but I need the opposite of that.