a textual notation to locate fields within atproto records (draft spec)
microcosm.tngl.io/RecordPath/
Document rationale for ! as escape character in 2.2
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spec.md
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spec.md
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Object field names can be arbitrary strings, so RecordPath needs to disambiguate its own syntax when fields contain syntax characters.
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The backslash is the conventional escape character in many languages and systems, but as per the URL-unreserved character constraint in section 1, it cannot be used here. The exclamation mark ! serves as its replacement.
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RecordPath has six syntax characters, which must be escaped by a preceeding `!` if they appear in a field name in the path.
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| Literal | Escaped | Syntax hint |