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#include "model.h"
#include "builtin.h"
#include "parser.h"
#include "eval.h"
#include "exc.h"
#include <cstdio>
int main(int argc, char **argv) {
//freopen("in.scm", "r", stdin);
Tokenizor *tk = new Tokenizor();
ASTGenerator *ast = new ASTGenerator();
Evaluator *eval = new Evaluator();
bool interactive = false;
bool preload = false;
char *fname;
int rcnt = 0;
for (int i = 1; i < argc; i++)
if (strcmp(argv[i], "-i") == 0)
interactive = true;
else if (strcmp(argv[i], "-l") == 0 && i < argc - 1)
{
preload = true;
fname = argv[i + 1];
}
if (preload)
{
FILE *f = fopen(fname, "r");
if (!f)
{
printf("Can not open file: %s\n", fname);
return 0;
}
tk->set_stream(f);
while (1)
{
try
{
Pair *tree = ast->absorb(tk);
if (!tree) break;
eval->run_expr(tree)->ext_repr().c_str();
}
catch (GeneralError &e)
{
fprintf(stderr, "An error occured: %s\n", e.get_msg().c_str());
}
}
interactive = true;
}
tk->set_stream(stdin);
while (1)
{
if (interactive)
fprintf(stderr, "Sonsi> ");
try
{
Pair *tree = ast->absorb(tk);
if (!tree) break;
string output = eval->run_expr(tree)->ext_repr();
if (interactive)
fprintf(stderr, "Ret> $%d = %s\n", rcnt++, output.c_str());
}
catch (GeneralError &e)
{
fprintf(stderr, "An error occured: %s\n", e.get_msg().c_str());
}
}
}
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