What are the accepted characters that I can use in my school submissions?

The following accents and characters are accepted:

Àà Ââ Çç Èè Éé Êê Ëë Îî Ïï Ôô Ùù Ûû Üü

~!@#$%^&*()_+{}|:””<>?

« »
” ”
‘ ‘

The following characters will be converted as specified:

’ will be converted to ‘
` will be converted to ‘
‘ will be converted to ‘
’ will be converted to ‘
“ will be converted to ”
” will be converted to ”
– will be converted to –
— will be converted to –

Tabs and bullets are not accepted, and will be stripped out of all submissions.