[Zope] How to convert the url to parameter

[Terry]

Dear list,

Probably it's a dummy question. But I just don't know how-to.
Does any one know to convert the url to parameter.

For example:

http://somehost/parse/db_name/table_name/some_field_name/condition

I would like to write a python script or dtml-method named "parse" to
grab the record from  database.

Use the parameter to build a page from "SELECT * from db_name.table_name 
WHERE field_name='some_field_name'  AND condition ='condition'  "

Thanks in advance.

Terry