lean2/src/shell/lean.cpp

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/*
Copyright (c) 2013 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Author: Leonardo de Moura
*/
#include <iostream>
#include <fstream>
#include <signal.h>
#include "util/interrupt.h"
#include "kernel/printer.h"
#include "frontends/lean/parser.h"
#include "bindings/lua/leanlua_state.h"
#include "version.h"
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using lean::shell;
using lean::frontend;
using lean::parser;
using lean::leanlua_state;
static void on_ctrl_c(int ) {
lean::request_interrupt();
}
bool lean_shell() {
std::cout << "Lean (version " << LEAN_VERSION_MAJOR << "." << LEAN_VERSION_MINOR << ")\n";
std::cout << "Type Ctrl-D to exit or 'Help.' for help."<< std::endl;
frontend f;
leanlua_state S;
shell sh(f, &S);
signal(SIGINT, on_ctrl_c);
return sh();
}
int main(int argc, char ** argv) {
if (argc == 1) {
return lean_shell() ? 0 : 1;
} else {
bool ok = true;
frontend f;
leanlua_state S;
for (int i = 1; i < argc; i++) {
std::ifstream in(argv[i]);
parser p(f, in, &S, false, false);
if (!p())
ok = false;
}
return ok ? 0 : 1;
}
}