URI.char_unescaped-question-mark

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

char_unescaped?(character)

char_unescaped?(byte()) :: boolean()

Checks if character is allowed unescaped in a URI.

This is the default used by URI.encode/2 where both reserved and unreserved characters are kept unescaped.

iex> URI.char_unescaped?(?{)
false