---
title: "buildPartialBlock(accumulated:next:)"
framework: regexbuilder
role: symbol
role_heading: Type Method
path: "regexbuilder/alternationbuilder/buildpartialblock(accumulated:next:)-653ta"
---

# buildPartialBlock(accumulated:next:)

## Declaration

```swift
static func buildPartialBlock<W0, C1, C2, C3, W1, C4, C5, C6, C7, C8, C9>(accumulated: some RegexComponent, next: some RegexComponent) -> ChoiceOf<(Substring, C1, C2, C3, C4?, C5?, C6?, C7?, C8?, C9?)>
```