   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\U0001~ Emoji            
12 "x\U0010ffffx"                                             Unassigned       
13 "\xfd\xfe\xff"                                             Invalid          
14 "\\"                                                       Backslash        
15 "\""                                                       Quote            
