Question

I would like a regex string to reflect an optional parameter, in this case, a geographic state.

I can accomplish this with two rules:

<rewrite url="~/(.+)-(.+)/(.+).aspx" to="~/Default.aspx?city=$1&amp;state=$2&amp;term=$3&amp;x=$4"/>
<rewrite url="~/(.+)/(.+).aspx" to="~/Default.aspx?city=$1&amp;state=NONE&amp;term=$2&amp;x=$4"/>

With, a query to /Los+Angeles/cars.aspx:
Geo – city: Los Angeles
Geo – state: NONE

With, a query to /Los+Angeles-CA/cars.aspx:
Geo – city: Los Angeles
Geo – state: CA

I’m curious about if there is a way to do this in one rewrite statement.

Thanks.

Answer 1

Have not messed with rewrite url in the config in a while but am quite used to regex. Would this work for you?

<rewrite url="~/([^-]+)(?:-(.+))?/(.+).aspx" to="~/Default.aspx?city=$1&amp;state=$2&amp;term=$3&amp;x=$4"/>

The state would not say none but should actually be blank.