implement Encoding; include "encoding.m"; b32: con "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"; enc(a: array of byte): string{	if(len a == 0)		return "========";	out := "";	nbit := len a * 8;	for(bit := 0; bit < nbit; bit += 5){		b := bit >> 3;		r := bit & 7;		v := int a[b] << r;		if(r > 3){			if(b+1 < len a)				v |= int (a[b+1] >> (8-r));		}		out[len out] = b32[(v>>3) & 16r1F];	}	while(len out & 7)		out[len out] = '=';	# RFC3548 says pad: we pad.	return out;} Naughty: con 255; t32d := array[256] of {	'a' => byte 0, 'b' => byte 1, 'c' => byte 2, 'd' => byte 3, 'e' => byte 4, 'f' => byte 5, 'g' => byte 6, 'h' => byte 7,	'i' => byte 8, 'j' => byte 9, 'k' => byte 10, 'l' => byte 11, 'm' => byte 12, 'n' => byte 13, 'o' => byte 14, 'p' => byte 15,	'q' => byte 16, 'r' => byte 17, 's' => byte 18, 't' => byte 19, 'u' => byte 20, 'v' => byte 21, 'w' => byte 22, 'x' => byte 23,	'y' => byte 24, 'z' => byte 25,	'A' => byte 0, 'B' => byte 1, 'C' => byte 2, 'D' => byte 3, 'E' => byte 4, 'F' => byte 5, 'G' => byte 6, 'H' => byte 7,	'I' => byte 8, 'J' => byte 9, 'K' => byte 10, 'L' => byte 11, 'M' => byte 12, 'N' => byte 13, 'O' => byte 14, 'P' => byte 15,	'Q' => byte 16, 'R' => byte 17, 'S' => byte 18, 'T' => byte 19, 'U' => byte 20, 'V' => byte 21, 'W' => byte 22, 'X' => byte 23,	'Y' => byte 24, 'Z' => byte 25,	'2' => byte 26, '3' => byte 27, '4' => byte 28, '5' => byte 29, '6' => byte 30, '7' => byte 31,	* => byte Naughty}; dec(s: string): array of byte{	a := array[(8*len s + 4)/5] of byte;	o := 0;	v := 0;	j := 0;	for(i := 0; i < len s; i++){		if((c := s[i]) > 16rFF || (c = int t32d[c]) == Naughty)			continue;		v <<= 5;		v |= c;		if((j += 5) >= 8){			a[o++] = byte (v>>(j-8));			j -= 8;		}	}	return a[0:o];}