From: 643-408-1753@kylheku.com   
      
   On 2025-10-10, BGB  wrote:   
   > Yeah, '0' by itself indicating octal is weird, so I might agree here.   
   >    123    //decimal   
   >    0123   //maybe reinterpret as decimal?   
   >    0o123  //octal   
   >    0x123  //hexadecimal   
   >    0b101  //binary   
      
   Lisp people worked this out before the end of the 80s:   
      
   [1]> 777   
   777   
   [2]> 00777   
   777   
   [3]> #o777   
   511   
   [4]> #x777   
   1911   
   [5]> #b1001   
   9   
      
   Leading zeros changing base is really a sneaky stupidity, and causes   
   problems in shell scripts also, from time to time.   
      
   $ printf "%d\n" 0777   
   511   
   $   
   $ echo $(( 0777 + 0 ))   
   511   
      
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