Encoding of Sz Attribute Values
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api manual reference zettelstore
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(c) 2020-present by Detlef Stern <ds@zettelstore.de>
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EUPL-1.2-or-later
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20260713151300
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An attribute is represented by a single cell. The first element of the cell references the attribute key, the second value the corresponding value.
AttributeKeyValue = ( AttributeKey . AttributeValue ).
AttributeKey and AttributeValue are string values, except when used internally. In this case, the attribute key may be a symbol, e.g. *ZSX-ID*.
An empty key denotes the generic attribute.
A key with the value "-" specifies the default attribute. In this case, the attribute value is not interpreted.
Some examples:
() represents the absence of attributes,
(("-" . "")) represent the default attribute,
(("-" . "") ("" . "syntax")) adds the generic attribute with the value syntax,
(("lang" . "en")) denotes the attribute key lang with a value en.