   chars                                                       desc             
   <chr>                                                       <chr>            
 1 "\u0001\u001f"                                              C0 control code  
 2 "\a\b\f\n\r\t"                                              Named control co~
 3 abcdefuvwxyz                                                ASCII            
 4 "\u0080\u009f"                                              C1 control code  
 5  ¡¢£¤¥úûüýþÿ                                                Latin-1          
 6 AaAaAaCcCcCc                                                Unicode          
 7 !"#$%&                                                Unicode wide     
 8 "\u0e00\u2029"                                              Unicode control  
 9 "x­x<U+200B>x<U+200C>x<U+200D>x<U+200E>x<U+200F>x<U+034F>x<U+FEFF>x\U000e0001x\U000e0020x\U000e01efx"                Unicode ignorable
10 a`a´a^a~a¯a¯a<U+0306>a<U+0307>a¨a<U+0309>a°a<U+030B>                                                Unicode mark     
11 "\U0001f600\U0001f601\U0001f602\U0001f603\U0001f604\U0001f~ Emoji            
12 "x\U0010ffffx"                                              Unassigned       
13 "\xfd\xfe\xff"                                              Invalid          
14 "\\"                                                        Backslash        
15 "\""                                                        Quote            
