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Nasal-Interpreter
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Delete brainfuck.nas

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Valk Richard Li 2020-06-01 01:22:32 +08:00 committed by GitHub
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commit af1c4f4a3b
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@ -1,71 +0,0 @@
var resource=[];
var data=[];
var ptr=0;
for(var i=0;i<1024;i+=1){append(data,0);}
var input_file=func(str)
{
resource=[];
var res=read(str);
for(var i=0;i<size(res);i+=1)
{
var ch=chars(res[i]);
for(var j=0;j<size(ch);j+=1){append(resource,ch[j]);}
}
return;
};
var runloop=func(times,begin)
{
var ends=begin;
for(var t=0;t<times;t+=1)
{
for(var i=begin;i<size(resource);i+=1)
{
if(resource[i]=='+'){data[ptr]+=1;}
else if(resource[i]=='-'){data[ptr]-=1;}
else if(resource[i]=='>'){ptr+=1;}
else if(resource[i]=='<'){ptr-=1;}
else if(resource[i]=='.'){print(data[ptr],' ');}
else if(resource[i]==','){data[ptr]=num(input());}
else if(resource[i]=='[')
{
var t_ends=runloop(data[ptr],i+1);
i=t_ends;
}
else if(resource[i]==']'){ends=i;break;}
else{print('error token: ',resource[i],'\n');}
}
}
return ends;
};
var runtime=func()
{
for(var i=0;i<1024;i+=1){data[i]=0;}
ptr=0;
for(var i=0;i<size(resource);i+=1)
{
if(resource[i]=='+'){data[ptr]+=1;}
else if(resource[i]=='-'){data[ptr]-=1;}
else if(resource[i]=='>'){ptr+=1;}
else if(resource[i]=='<'){ptr-=1;}
else if(resource[i]=='.'){print(data[ptr],' ');}
else if(resource[i]==','){data[ptr]=num(input());}
else if(resource[i]=='[')
{
var ends=runloop(data[ptr],i+1);
i=ends;
}
else{print('error token: ',resource[i],'\n');}
}
return;
};
while(1)
{
print("bf> ");
var filename=input();
if(filename=='exit'){break;}
input_file(filename);
runtime();
print('\n');
}