PassiveSupport.String.scan

You're seeing just the function scan, go back to PassiveSupport.String module for more information.
Link to this function

scan(string, pattern, opts \\ [])

Specs

scan(String.t(), Regex.t() | String.t(), keyword()) :: [[String.t()]]

Converts the provided pattern to a regular expression, if necessary, and then invokes Regex.scan on the expression and the string.

Useful for invoking regular expressions on strings in the middle of transformation pipelines.

Examples

iex> scan("footwear, fun, and fondue", "((f[ou])[no]).+")
[["footwear, fun, and fondue", "foo", "fo"]]

iex> scan("fööd!", "öö")
[["öö"]]

iex> scan("footwear, fun, and fondue", ~r/((f[ou])[no]).+/U)
[["foot", "foo", "fo"], ["fun,", "fun", "fu"], ["fond", "fon", "fo"]]