IIS URL rewrite with optional parameters for page no

Question

I need a help writing rewrite rule for the following url pattern

www.mydomain.com/list-of-(buyers|suppers|all)-in-(location-name)/page/10.html

1. The first parameter will be 'buyers' or 'suppliers' or 'all'
2. The second parameter can be ANY location name
3. '/page/number' part is optional
4. url will always end with '.html'

UPDATE:

I have managed to write a rewrite rule which successfully matches the following url:

mysite.com/list-of-buyers-in-goa/page/5.html .

The same rule is not working for the below url

mysite.com/list-of-buyers-in-goa.html

ie when I remove the page/no part from the url, it doesn't work. I don't need page/no parameter for the first page.

Since all the other pages on website are .html pages, just to maintain the uniformity, I want the url to always end with .html

Here is my rewrite rule

    <rule name="Rewrite rule for listing members">
      <match url="^list-of-([a-z-A-z]+)-in-([a-zA-z-]+)?(\/page\/)?([\d+])?\.html$" />
      <action type="Rewrite" url="members.aspx?type={R:1}&amp;location={R:2}&amp;page={R:4}" />
    </rule>

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Answer 1

Try like this;

.*.com\/list-of-(buyers|suppers|all)-in-.*html$

I tested it with "mysite.com/list-of-buyers-in-goa.html" and mysite.com/list-of-buyers-in-goa/page/1234.html , it matched.