use conv/char::toVoid
use flow/void::count as voidCount
/**
Gives count of elements passing through input stream.
This count increment one for each element within the stream, starting at 1.
```mermaid
graph LR
T("count()")
V["🟦 🟦 🟦 …"] -->|stream| T
T -->|count| P["1️⃣ 2️⃣ 3️⃣ …"]
style V fill:#ffff,stroke:#ffff
style P fill:#ffff,stroke:#ffff
```
*/
treatment count()
input stream: Stream<char>
output count: Stream<u128>
{
toVoid()
voidCount()
Self.stream -> toVoid.value,iter -> voidCount.stream,count -> Self.count
}
/**
Gives pattern of a `char` stream.
```mermaid
graph LR
T("pattern()")
A["… 🟨 🟨 🟨 🟨 🟨 🟨"] -->|stream| T
T -->|pattern| O["… 🟦 🟦 🟦 🟦 🟦 🟦"]
style A fill:#ffff,stroke:#ffff
style O fill:#ffff,stroke:#ffff
*/
treatment pattern()
input stream: Stream<char>
output pattern: Stream<void>
{
toVoid()
Self.stream -> toVoid.value,iter -> Self.pattern
}