Support for Parameter Options in Parameterized Path

[sato9818]

Recommended by @trustin.

Background

To improve the flexibility of parameterized path, it would be very useful to support detailed parameter options for validation.
This feature would allow specifying additional constraints directly in the path, such as type, length, range, and custom patterns.

Example

Examples of the proposed syntax include:

• /foo/{bar:type=int,range=[0,10]}/ - Validates that bar is an integer within the range of 0 to 10.
• /foo/{bar:type=string,max_len=10}/ - Validates that bar is a string with a maximum length of 10 characters.
• /foo/{bar:type=string,pattern=^[0-9-]+$}/ - validates that bar matches the specified regex pattern.

implementation

To implement this feature, we might consider adding a new parsing method in the ParameterizedPathMapping class.
Also, we might need a new class that is responsible for applying the specified validations on the input values.