<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">In your example from <a href="http://php.net/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
php.net</a>, ' should be escaped because it is the
character that surrounds the text. In the po file " is used instead of
'. Thus ' should not be escaped, but " should. In PHP, the escape
character is \. In the po file, i don't know what escape character to
use. If you use a fancy po file editor instead of a text editor, the
editor would probably take care of this.</blockquote><div><br>The excape character should be \ as in PHP: in the english original .po file there are some strings with double quotes inside and \" is used to escape them.
<br><br>Francesco.<br></div><br>