---
title: "buildPartialBlock(accumulated:next:)"
framework: regexbuilder
role: symbol
role_heading: Type Method
path: "regexbuilder/alternationbuilder/buildpartialblock(accumulated:next:)-46i6m"
---

# buildPartialBlock(accumulated:next:)

## Declaration

```swift
static func buildPartialBlock(accumulated: some RegexComponent, next: some RegexComponent) -> ChoiceOf<Substring>
```