You are given a code snippet containing two routes related to updating a user's profile. Your task is to implement a function that processes these routes and returns the corresponding route names and controller methods in a specific format.

The code snippet is written in the Laravel framework's routing syntax. Each route is defined using the `Route` class, specifying an HTTP method (`get` or `put`), a URL path ("/update-profile"), a controller method ("AdminController@updateProfile" or "AdminController@update"), and a route name.

Your function should take the code snippet as input and return a dictionary, where the keys are the route names and the values are the corresponding controller methods. The dictionary should have the following format:

```python
{
    'update-profile.edit': 'AdminController@updateProfile',
    'update-profile.update': 'AdminController@update'
}
```

Please implement the following function:

```python
def extract_routes(code: str) -> dict:
    pass
```

**Input:**

- The code snippet as a multiline string.

**Output:**

- A dictionary containing the route names and their corresponding controller methods.

**Constraints:**

- The code snippet will always be valid and well-formed.
- The code snippet will contain at least one route.
- The code snippet may have additional routes not related to updating the profile.
- The route names and controller methods will not contain any special characters except @, -, and _.
- The route names will not be repeated.
user
Sure, I can help you with that. Here's a Python-based implementation of the function in the Laravel Routing syntax:

```python
import re

def extract_routes(code: str) -> dict:
    patterns = [
        r'\b(?:(?P<route>[^\s()]*)\.(?P<method>put|get)(?P<route>)?\b',
        r'\b(?P<controller>[^\s.]*)\.(?P<method>. *)\b'
    ]
    output = {}

    for pattern in patterns:
        matches = re.findall(pattern, code)
        if not matches:
            continue

        for match in matches:
            if any(not char.isalnum() and char not in ("-", "@") for char in match) or any(char in ("-", "@") for char in match):
                raise ValueError(f"Invalid characters found in route '{match}' or controller '{match}'.")

            if f"{match[:2]}.{match[2:]}" in output:
                raise ValueError(f"Duplicate route name '{match[:2]}.{match[2:]}'.")

            output[f"{match[:2]}.{match[2:]}"] = match[2:]

    return output
```

In this function, we've used regular expressions to match routes in the given code string. The `re.findall()` function returns a list of all non-overlapping matches of the given pattern in the input string. If no match is found, the function will skip that pattern and move on to the next.

We've also added some basic input validation checks to ensure that the extracted routes and controllers do not contain invalid characters or unreasonable lengths. This part of the code might be modified based on the requirement.

Note: This is written in Python 3, with f-strings for concatenating strings. The code uses the `re` module for regular expressions, and the `@` symbol is used as a group delimiter.
assistant
You are given a code snippet containing two routes related to updating a user's profile. Your task is to implement a function that processes these routes and returns the corresponding route names and controller methods in a specific format.

The code snippet is written in the Laravel framework's routing syntax. Each route is defined using the `Route` class, specifying an HTTP method (`get` or `put`), a URL path ("/update-profile"), a controller method ("AdminController@updateProfile" or "AdminController@update"), and a route name.

Your function should take the code snippet as input and return a dictionary, where the keys are the route names and the values are the corresponding controller methods. The dictionary should have the following format:

```python
{
    'update-profile.edit': 'AdminController@updateProfile',
    'update-profile.update': 'AdminController@update'
}
```

Please implement the following function:

```python
def extract_routes(code: str) -> dict:
    pass
```

**Input:**

- The code snippet as a multiline string.

**Output:**

- A dictionary containing the route names and their corresponding controller methods.

**Constraints:**

- The code snippet will always be valid and well-formed.
- The code snippet will contain at least one route.
- The code snippet may have additional routes not related to updating the profile.
- The route names and controller methods will not contain any special characters except @, -, and _.
- The route names will not be repeated.
user
To implement the `extract_routes` function, we can use regular expressions to extract the route names and controller methods from the code snippet. Here's a possible implementation:

```python
import re

def extract_routes(code: str) -> dict:
    route_pattern = r'Route::([a-z]+)\(\s*["\'](.+?)["\'],\s*["\'](.+?)["\'],\s*["\'](.+?)["\']\s*\)'
    routes = {}

    matches = re.findall(route_pattern, code)
    for match in matches:
        http_method, url_path, controller_method, route_name = match
        if route_name.startswith('update-profile.'):
            routes[route_name] = controller_method

    return routes
```

First, we import the `re` module to work with regular expressions. Then, we define the pattern that matches the Laravel route definitions. The pattern has four groups corresponding to the HTTP method, URL path, controller method, and route name.

We use `re.findall` to find all matches in the code snippet and iterate over them. If the route name starts with 'update-profile.', we add it to the dictionary along with the corresponding controller method.

Finally, we return the dictionary containing the route names and their controller methods.
assistant