我用parsec实现的解释器

Question

照着那个make yourselves a scheme in 48 hours的教程来的，不过貌似用了不止48个小时

懒得介绍语法了，放几个demo

var arr=[1,2,3,4]; arr << 1 << 2; puts(arr); var hash={'a':1,'b':2}; hash['c']=hash['a']+hash['b']; hash['c']=1; puts(hash); function makeAdder(num){         var this={                 'count':num,                 'add':function(num){                         this['count']=this['count']+num;                 }         };         return this; } var adder = makeAdder(2); (adder['add'])(1); (adder['add'])(1); adder['add'](1); adder['count']; puts('************'); function makeCounter(init){     var this={         'n':init,         'add':function(n){             this['n']=this['n']+n;             return this['n'];         }     };     return this; } var counter=makeCounter(1); puts((counter['add'])(2)); --3 puts(counter['add'](3));   --6