Hyperlinkv0.8.0-beta.28

JsonPointer

JsonPointer.escapeTokenfunctioneffect/JsonPointer.ts:42
(token: string): string

Escapes a JSON Pointer reference token according to RFC 6901 by encoding special characters so the token can be safely used as a segment in a JSON Pointer.

When to use

Use when you need to escape a single JSON Pointer path segment.

Details

  • Returns a new escaped string
  • Replaces ~ (tilde) with ~0 and / (forward slash) with ~1
  • Returns the input unchanged if it contains no special characters
  • Empty strings are valid and returned unchanged

Gotchas

The replacement order matters: ~ is replaced before / to prevent double-escaping.

Example (Escaping special characters)

import { JsonPointer } from "effect"

JsonPointer.escapeToken("a/b") // "a~1b"
JsonPointer.escapeToken("c~d") // "c~0d"
JsonPointer.escapeToken("path/to~key") // "path~1to~0key"
export function escapeToken(token: string): string {
  return token.replace(/~/g, "~0").replace(/\//g, "~1")
}
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