.is_reserved_operator | R Documentation |
Some symbols are reserved for the special syntax implemented by the package.
This function checks if a given node (i.e., a call) is one or more of
+ - * |
.is_reserved_operator(node, check_sym = NULL)
node |
List element |
check_sym |
If NULL (default), check all reserved operators. Otherwise, a string that will be converted to a symbol. |
TRUE
if node
is identical to a reserved operator, otherwise
FALSE
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