<p dir="ltr">Have you tried escaping the `=`?</p>
<div class="gmail_quote">On Jul 28, 2013 11:04 AM, "Augeas" <<a href="mailto:trac@fedorahosted.org">trac@fedorahosted.org</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
#355: Failed to update PHP settings in per host section: Invalid path expression<br>
--------------------+---------------------<br>
 Reporter:  gold    |       Owner:  lutter<br>
     Type:  defect  |      Status:  new<br>
 Priority:  major   |   Milestone:  next<br>
Component:  Augeas  |     Version:  1.0.0<br>
 Keywords:          |  Blocked By:<br>
 Blocking:          |<br>
--------------------+---------------------<br>
 Steps<br>
 1. Create file '/etc/php5/conf.d/example.com.ini' with the following<br>
 content<br>
 {{{<br>
 [HOST=<a href="http://example.com" target="_blank">example.com</a>]<br>
 memory_limit = 128M<br>
 }}}<br>
 2. Run in augtool the following command<br>
 {{{<br>
 set /files/etc/php5/conf.d/example.com.ini/HOST=<a href="http://example.com/memory_limit" target="_blank">example.com/memory_limit</a><br>
 256M<br>
 }}}<br>
<br>
 Run failed with the following error<br>
 {{{<br>
 error: Invalid path expression<br>
 error: type error<br>
 /files/etc/php5/conf.d/example.com.ini/HOST=<a href="http://example.com/memory_limit|=|" target="_blank">example.com/memory_limit|=|</a><br>
 }}}<br>
<br>
--<br>
Ticket URL: <<a href="https://fedorahosted.org/augeas/ticket/355" target="_blank">https://fedorahosted.org/augeas/ticket/355</a>><br>
Augeas <<a href="http://augeas.net/" target="_blank">http://augeas.net/</a>><br>
a configuration API<br>
<br>
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</blockquote></div>