Output Size Optimizations

optimized.js

@@ -0,0 +1,287 @@
+//Allowed Chars:  ({[/>+!-=\]})
+
+const zero = '+[]';
+const one = '+!![]';
+
+let fromString = null;
+
+const number = n => {
+  if (n === 0) return zero;
+  if (n === 1) return one;
+  if (n === 2) {
+    return '!![]+!![]';
+  }
+  if (n === 3) {
+    return '!![]+!![]+!![]';
+  }
+  if (n === 4) {
+    return '!![]+!![]+!![]+!![]';
+  }
+  if (n === 5) {
+    return '((+!![]+[]+ +[])>>!![])';
+  }
+  if (n === 6) {
+    return '((+!![]+[]+ +[])>>!![])+!![]';
+  }
+  if (n === 7) {
+    return '(+!![]+[]+ +[])-!![]-!![]-!![]';
+  }
+  if (n === 8) {
+    return '(+!![]+[]+ +[])-!![]-!![]';
+  }
+  if (n === 9) {
+    return '(+!![]+[]+ +[])-!![]';
+  }
+  if (n === 10) {
+    return '(+!![]+[]+ +[])-[]';
+  }
+  if (n === 14) {
+    return '(+!![]+[]+(!![]+!![]+!![]+!![]))-[]';
+  }
+  if (n === 11) {
+    return '(+!![]+[]+ +!![])-[]';
+  }
+  if (n === 18) {
+    return '(+!![]+!![]+[]+ +![])-!![]-!![]';
+  }
+  if (n === 17) {
+    return '(+!![]+!![]+[]+ +![])-!![]-!![]-!![]';
+  }
+  if (n === 20) {
+    return '(+!![]+!![]+[]+ +![])-[]';
+  }
+  if (n === 30) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]';
+  }
+  if (n === 26) {
+    //100>>2 + 1
+    return '((+!![]+[]+ +![]+ +![])>>!![]+!![])+!![]';
+  }
+  if (n === 31) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]+!![]';
+  }
+  if (n === 32) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]+!![]+!![]';
+  }
+  if (n === 33) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]+!![]+!![]+!![]';
+  }
+  if (n === 34) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]+!![]+!![]+!![]+!![]';
+  }
+  if (n === 35) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]+!![]+!![]+!![]+!![]+!![]';
+  }
+  if (n === 36) {
+    return '(+!![]+!![]+!![]+[]+ +![])-[]+!![]+!![]+!![]+!![]+!![]+!![]';
+  }
+  if (n === 46) {
+    //100 >> 1 - 4
+    return '((+!![]+[]+ +![]+ +![])>>!![])-!![]-!![]-!![]-!![]';
+  }
+  if (n === 75) {
+    //300 >> 2
+    return '(!![]+!![]+!![]+[]+ +![]+ +![])>>!![]+!![]';
+  }
+  if (n === 74) {
+    return '((!![]+!![]+!![]+[]+ +![]+ +![])>>!![]+!![])-!![]';
+  }
+  if (n === 76) {
+    return '((!![]+!![]+!![]+[]+ +![]+ +![])>>!![]+!![])+!![]';
+  }
+  if (n === 77) {
+    return '((!![]+!![]+!![]+[]+ +![]+ +![])>>!![]+!![])+!![]+!![]';
+  }
+  if (n === 42) {
+    return '(+!![]+!![]+!![]+!![]+[]+ +![])-[]+!![]+!![]';
+  }
+  if (n === 122) {
+    return '(+!![]+[]+ +(!![]+!![])+ +(!![]+!![]))-[]';
+  }
+  if (n === 70) {
+    return '(!![]+!![]+!![]+!![]+!![]+!![]+!![]+[]+ +[])-[]';
+  }
+  if (n === 68) {
+    return '(!![]+!![]+!![]+!![]+!![]+!![]+!![]+[]+ +[])-!![]-!![]';
+  }
+  if (n === 69) {
+    return '(!![]+!![]+!![]+!![]+!![]+!![]+!![]+[]+ +[])-!![]';
+  }
+  if (n === 72) {
+    return '(!![]+!![]+!![]+!![]+!![]+!![]+!![]+[]+ +[])-[]+!![]+!![]';
+  }
+  if (n === 71) {
+    return '(!![]+!![]+!![]+!![]+!![]+!![]+!![]+[]+ +[])-[]+!![]';
+  }
+  if (n === 80) {
+    return '((+!![]+[]+ +[])-!![]-!![]+[]+ +[])-[]';
+  }
+  if (n === 81) {
+    return '((+!![]+[]+ +[])-!![]-!![]+[]+ +!![])-[]';
+  }
+  if (n === 82) {
+    return '((+!![]+[]+ +[])-!![]-!![]+[]+ +!![])-[]+!![]';
+  }
+  if (n === 84) {
+    return '((+!![]+[]+ +[])-!![]-!![]+[]+ +!![])-[]+!![]+!![]+!![]';
+  }
+  if (n === 85) {
+    return '((+!![]+[]+ +[])/!![]-!![]+[]+ +[])-!![]-!![]-!![]-!![]-!![]';
+  }
+  if (n === 90) {
+    return '((+!![]+[]+ +[])-!![]+[]+ +[])-[]';
+  }
+  if (n === 89) {
+    return '((+!![]+[]+ +[])-!![]+[]+ +[])-!![]';
+  }
+  if (n === 88) {
+    return '((+!![]+[]+ +[])-!![]+[]+ +[])-!![]-!![]';
+  }
+  if (n === 87) {
+    return '((+!![]+[]+ +[])-!![]+[]+ +[])-!![]-!![]-!![]';
+  }
+  if (n === 86) {
+    return '((+!![]+[]+ +[])-!![]+[]+ +[])-!![]-!![]-!![]-!![]';
+  }
+  if (n === 60) {
+    return '(+!![]+[]+ +(!![]+!![])+ +![])>>!![]';
+  }
+  if (n === 63) {
+    return '((+!![]+[]+ +(!![]+!![])+ +![])>>!![])+!![]+!![]+!![]';
+  }
+  if(n > 10) {
+    //console.log('missing number:' + n);
+    //Fallback for undefined large numbers
+    return `(${fromString(n + '')})-[]`
+  }
+  throw new Error('Undefined number encoding');
+}
+
+const map = {};
+
+fromString = s => s.split('').map(x => {
+  if (!(x in map)) {
+    //console.log(x);
+    const charCode = x.charCodeAt(0);
+    return `([]+[])[${fromString('constructor')}][${fromString('fromCharCode')}](${number(charCode)})`;
+  }
+  return map[x];
+}).join('+');
+
+map['0'] = `(${number(0)}+[])`;
+map['1'] = `(${number(1)}+[])`;
+map['2'] = `(${number(2)}+[])`;
+map['3'] = `(${number(3)}+[])`;
+map['4'] = `(${number(4)}+[])`;
+map['5'] = `(${number(5)}+[])`;
+map['6'] = `(${number(6)}+[])`;
+map['7'] = `(${number(7)}+[])`;
+map['8'] = `(${number(8)}+[])`;
+map['9'] = `(${number(9)}+[])`;
+
+//(+{}+[]) => 'NaN'
+map.N = `(+{}+[])[${number(0)}]`;
+map.a = `(+{}+[])[${number(1)}]`;
+
+//{}+[] => '[object Object]'
+map.O = `({}+[])[${number(8)}]`;
+map.b = `({}+[])[${number(2)}]`;
+map.j = `({}+[])[${number(3)}]`;
+map.o = `({}+[])[${number(1)}]`;
+map.c = `({}+[])[${number(5)}]`;
+map[' '] = `({}+[])[${number(7)}]`;
+map['['] = `({}+[])[${number(0)}]`;
+
+//![]+[] => 'false'
+map.f = `(![]+[])[${number(0)}]`;
+map.s = `(![]+[])[${number(3)}]`;
+map.l = `(![]+[])[${number(2)}]`;
+
+//!![]+[] => 'true'
+map.t = `(!![]+[])[${number(0)}]`;
+map.r = `(!![]+[])[${number(1)}]`;
+map.u = `(!![]+[])[${number(2)}]`;
+map.e = `(!![]+[])[${number(3)}]`;
+
+//(+!![]/+[])+[] => 'Infinity'
+map.I = `((+!![]/+[])+[])[${number(0)}]`;
+map.n = `((+!![]/+[])+[])[${number(1)}]`;
+map.i = `((+!![]/+[])+[])[${number(3)}]`;
+map.y = `((+!![]/+[])+[])[${number(7)}]`;
+
+//([]+((1)['['])) => 'undefined'
+map.d = `([]+((1)[${fromString('[')}]))[${number(2)}]`
+
+//([]+([]+[])['constructor']) => 'function String() { [native code] }'
+map.S = `([]+([]+[])[${fromString('constructor')}])[${number(9)}]`;
+map.g = `([]+([]+[])[${fromString('constructor')}])[${number(14)}]`;
+map.p = `([]+(/-/)[${fromString('constructor')}])[${number(14)}]`;
+
+//Regex
+map['\\'] = `(/\\\\/+[])[${number(1)}]`;
+map['/'] = `(/-/+[])[${number(0)}]`;
+map['-'] = `(/-/+[])[${number(1)}]`;
+map['+'] = `(/-+/+[])[${number(2)}]`;
+map['>'] = `(/>/+[])[${number(1)}]`;
+map['!'] = `(/!/+[])[${number(1)}]`;
+map['='] = `(/=/+[])[${number(1)}]`;
+map['('] = `(/()/+[])[${number(1)}]`;
+map[')'] = `(/()/+[])[${number(2)}]`;
+map['{'] = `(/{/+[])[${number(1)}]`;
+map['}'] = `(/}/+[])[${number(1)}]`;
+map[']'] = `(/]/+[])[${number(1)}]`;
+
+//(x).toString(x+1 or higher) => char
+map.h = `(${number(17)})[${fromString('toString')}](${number(20)})`;
+map.k = `(${number(20)})[${fromString('toString')}](${number(30)})`;
+map.q = `(${number(26)})[${fromString('toString')}](${number(30)})`;
+map.v = `(${number(31)})[${fromString('toString')}](${number(32)})`;
+map.w = `(${number(32)})[${fromString('toString')}](${number(33)})`;
+map.x = `(${number(33)})[${fromString('toString')}](${number(34)})`;
+map.z = `(${number(35)})[${fromString('toString')}](${number(36)})`;
+
+
+//([]+(+[])['constructor']) => 'function Number() { [native code] }'
+map.m = `([]+(+[])[${fromString('constructor')}])[${number(11)}]`;
+
+//([]+([])['constructor']) => 'function Array() { [native code] }'
+map.A = `([]+([])[${fromString('constructor')}])[${number(9)}]`;
+
+//([]+(!{})['constructor']) => 'function Boolean() { [native code] }'
+map.B = `([]+(![])[${fromString('constructor')}])[${number(9)}]`;
+
+//((()=>{})['constructor']) => 'function Function() { [native code] }'
+map.F = `((()=>{})[${fromString('constructor')}]+[])[${number(9)}]`;
+
+//((()=>{})['constructor'](${'return escape')()('\\'))[2]
+map.C = `((()=>{})[${fromString('constructor')}](${fromString('return escape')})()(${map['\\']}))[${number(2)}]`;
+map['%'] = `((()=>{})[${fromString('constructor')}](${fromString('return escape')})()(${map['\\']}))[${number(0)}]`;
+map.E = `((()=>{})[${fromString('constructor')}](${fromString('return escape')})()(${map['>']}))[${number(2)}]`;
+map.D = `((()=>{})[${fromString('constructor')}](${fromString('return escape')})()(${map['}']}))[${number(2)}]`;
+
+const generic_char_encoding = fromString('^');
+//console.log('generic key chars: ' + generic_char_encoding.length);
+
+for (const [key, value] of Object.entries(map)) {
+  if(key !== eval(value)) {
+    throw new Error("Encoding error for symbol: '" + key + "'");
+  }
+  //console.log(key + ' encoded chars: ' + value.length);
+}
+
+const compile = code => `(()=>{})[${fromString('constructor')}](${fromString(code)})()`;
+
+const test_instruction = 'console.log("AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz0123456789({[/<>+?*%#!-=]})")';
+
+const original_input = 'console.log("Hello world!");';
+
+const test = compile(original_input);
+
+/*
+console.log('original   length: ' + test_instruction.length);
+console.log('transpiled length: ' + test.length);
+
+eval(test);
+*/
+
+console.log(test);