mirror of https://github.com/zcash/zips.git
ZIP 321: clarify the usage of ``req-``.
Signed-off-by: Daira Emma Hopwood <daira@jacaranda.org>
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zip-0321.rst
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zip-0321.rst
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@ -15,9 +15,9 @@
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Terminology
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Terminology
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===========
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===========
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The key words "MUST", "MUST NOT", "SHOULD", "RECOMMENDED", and "MAY" in this
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The key words "MUST", "REQUIRED", "MUST NOT", "SHOULD", "RECOMMENDED", and "MAY"
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document are to be interpreted as described in BCP 14 [#BCP14]_ when, and only
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in this document are to be interpreted as described in BCP 14 [#BCP14]_ when, and
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when, they appear in all capitals.
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only when, they appear in all capitals.
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The terms "Testnet" and "Mainnet" are to be interpreted as described in
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The terms "Testnet" and "Mainnet" are to be interpreted as described in
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section 3.11 of the Zcash Protocol Specification [#protocol-networks]_.
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section 3.11 of the Zcash Protocol Specification [#protocol-networks]_.
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@ -291,6 +291,13 @@ parser does not recognize any variables which are prefixed with ``req-``, it
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MUST consider the entire URI invalid. Any other variables that are not
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MUST consider the entire URI invalid. Any other variables that are not
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recognized, but that are not prefixed with a ``req-``, SHOULD be ignored.
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recognized, but that are not prefixed with a ``req-``, SHOULD be ignored.
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``req-`` is potentially part of a given parameter name that may be defined
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in a future version of this ZIP, not a modifier that can be applied to an
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arbitrary parameter. None of the originally defined parameters (``address``,
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``amount``, ``label``, ``memo``, and ``message``) include the ``req-``
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prefix, because these parameters are REQUIRED to be understood by all
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conformant ZIP 321 URI parsers.
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Backward compatibility
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Backward compatibility
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----------------------
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----------------------
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