wraith/node_modules/@marijn/find-cluster-break/README.md
Vantz Stockwell 2848d79915 feat: Phase 1 complete — Tauri v2 foundation
Rust backend: SQLite (WAL mode, 8 tables), vault encryption
(Argon2id + AES-256-GCM), settings/connections/credentials
services, 19 Tauri command wrappers. 46/46 tests passing.

Vue 3 frontend: unlock/create vault flow, Pinia app store,
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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-17 15:09:41 -04:00

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# @marijn/find-cluster-break
Small JavaScript module for finding grapheme cluster breaks in
strings, scanning from a given position.
```javascript
import {findClusterBreak} from "@marijn/find-cluster-break"
console.log(findClusterBreak("💪🏽🦋", 0))
// → 4
```
This code is open source, released under an MIT license.
## Documentation
**`findClusterBreak`**`(str: string, pos: number, forward = true, includeExtending = true): number`
Returns a next grapheme cluster break _after_ (not equal to) `pos`,
if `forward` is true, or before otherwise. Returns `pos` itself if no
further cluster break is available in the string. Moves across
surrogate pairs, extending characters (when `includeExtending` is
true, which is the default), characters joined with zero-width joiners,
and flag emoji.
**`isExtendingChar`**`(code: number): boolean`
Query whether the given character has a `Grapheme_Cluster_Break` value
of `Extend` in Unicode.