How to add a pattern at a specified location

[melina5656]

In this example, there is a KeyName = "hostName", which shows up in the operation parameters. The original swagger has pattern "^[-\w\._]+$" for this parameter.
I know there is a way to add patterns like this
But this applies pattern to all the resource operations. There is only a small portion of operations have this pattern.
Is there a way to add this pattern at a specified location？

[markcowl]

@melina5656

• You can either use the Pattern parameter in the ResourceName template, or an augment decorator for @@pattern, like this
• It doesn't seem to make sense for some resource operations to have a pattern constraint on a resource name and others not to - either the resource has an allowed pattern for names or it doesn't. If there are old specs that have the pattern constraint on some operations for a resource but not others, that is likely a swagger mistake that we do not want to replicate. Since Azure clients do not implement pattern constraints in code, correcting a previous oversight in swagger would have no generated code impact and would improve the accuracy of the spec.