The base of all filters
Base class for all Message Filters.
BaseFilter(filter) as.BaseFilter(x, ...) is.BaseFilter(x)
filter |
If you want to create your own filters you can call this
generator passing by a |
x |
Object to be coerced or tested. |
... |
Further arguments passed to or from other methods. |
See filtersLogic to know more about combining filter
functions.
## Not run: # Create a filter function text_or_command <- function(message) !is.null(message$text) # Make it an instance of BaseFilter with its generator: text_or_command <- BaseFilter(filter = text_or_command) # Or by coercing it with as.BaseFilter: text_or_command <- as.BaseFilter(function(message) !is.null(message$text)) ## End(Not run)
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