Get Image file name using regex wildcard search vqmod - regex

Question

I am wanting to remove the icons from the h1 title element in opencart admin panel. I'm trying to use an asterisk as a wildcard for the file name, but it's not working out.
The docs says the search data:
<h1><img src="view/image/*.png" alt="" /> <?php echo $heading_title; ?></h1>
should be a valid regex pattern, though I'm not familiar with regex. How can I do this correctly in vqmod?
<file name="admin/view/template/*/*.tpl">
<operation>
<search regex="true" position="replace"><![CDATA[
<h1><img src="view/image/*.png" alt="" /> <?php echo $heading_title; ?></h1>
]]></search>
<add><![CDATA[
<h1><?php echo $heading_title; ?></h1>
]]></add>
</operation>
</file>

Answer 1

In vQmod, the regex still needs to have its delimiters. You are also better off just using a generic search for the <h1> since you are setting it to just the heading title.
<file name="admin/view/template/*/*.tpl">
<operation>
<search regex="true" position="replace"><![CDATA[~<h1>.*?</h1>~]]></search>
<add><![CDATA[<h1><?php echo $heading_title; ?></h1>]]></add>
</operation>
</file>

Answer 2

In regex, an asterisk * is a quantifier which means match zero or more times.
I think you want to match anything, one or more times. You do that with .+. Ofcourse you want it ungreedy, so the final pattern is .+?.
. : match anything
+ : a quantifier which means match one or more times
? : + followed by ? means to match ungreedy
Let's apply the above in the code:
<h1><img src="view/image/.+?\.png" alt="" /> <?php echo preg_quote($heading_title); ?></h1>
We need to escape the dot in \.png
We'll use preg_quote() to escape properly regex reserved characters in the $heading_title variable