URI.char_reserved-question-mark

You're seeing just the function char_reserved-question-mark, go back to URI module for more information.
Link to this function

char_reserved?(character)

View Source

Specs

char_reserved?(byte()) :: boolean()

Checks if character is a reserved one in a URI.

As specified in RFC 3986, section 2.2, the following characters are reserved: :, /, ?, #, [, ], @, !, $, &, ', (, ), *, +, ,, ;, =

Examples

iex> URI.char_reserved?(?+)
true