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#include <iostream>
#include <fstream>
#include <cstring>
#include "evaluate.h"
#include "parser.h"
using namespace std;
string readstream(istream &in){
string res;
char buf[4096];
while(true){
in.read(buf,sizeof(buf));
if(in.gcount()==0)break;
res.append(buf,in.gcount());
}
return res;
}
int main(int argc,char **argv){
string source,filename;
bool fromstdin=false;
if(argc==1)fromstdin=true;
else if(argc==2){
if(strcmp(argv[1],"-")==0)fromstdin=true;
else filename=argv[1];
} else {
cerr<<"Pass source on stdin, or filename as argument (or '-' for stdin)"<<endl;
return 1;
}
if(fromstdin){
source=readstream(cin);
filename="<stdin>";
} else {
ifstream f(filename);
source=readstream(f);
}
StatementList stl;
try {
stl=parse(source,filename);
} catch(ParseError e){
cerr<<e.what()<<endl;
return 1;
}
// cout<<stl<<endl;
Assembly as(stl);
cout<<as<<flush;
return 0;
}
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