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Set the match function

Source: R/replacement_strategy.R
set_match_fn.Rd

Sets the package-wide function used to find an existing slide element that matches the one being added. Used by add_* functions when the replacement strategy is "replace" or "skip".

Usage

set_match_fn(fn)

Arguments

fn

A function with the signature described above.

Value

fn, invisibly.

Details

The function must accept two arguments:

  • new_spec: a named list with type (character), left, top, width, height (numeric, in inches).

  • existing_elements: a tibble with the same columns plus element_id.

It must return either a single element_id string or NULL. If multiple elements match, the function should warn and return NULL.

See also

get_match_fn(), match_by_type_and_position()