<?down>
Description
Used mainly, but not exclusively, within references and paragraph styles as a way to define the point at which attributes triggered by an <?up> code are to be deactivated.
Example 450. Deactivate multiple PIs in a single command
Pairing <?up> and <?down> codes is particularly useful when setting up font references. The pair can hold as many commands as is required, but a single <?down> command would deactivate all these settings in a single hit, avoiding the need to reset each attribute individually:
<?up><?tf="Times-i><?tlse=.1w><?down>
Syntax
<?down strip_prop:L?>
<?down>
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strip_prop
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*
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Strips all inherited properties from the current stack.
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