The groups

• Basic Latin letters (A - Z, a - z)
• Diacritics (accents etc.) and letters with them
• Other letters
• Digits (0 - 9), superscript digits (¹ ² ³), and vulgar fractions (¼ ½ ¾)
• Punctuation
• Currency symbols
• Mathematical, logical and physical symbols
• Space characters
• Other symbols

Note: Some characters appear in more than one category in this classification, due to different uses. (For example, hyphen-minus has dual use as punctuation symbol and as mathematical symbol.)