Merge pull request #28 from X-FRI/main

Add cli module

.clang-format

@@ -33,8 +33,8 @@ ContinuationIndentWidth:	2
 AlignAfterOpenBracket: AlwaysBreak
 AlignConsecutiveDeclarations:
   Enabled:         true
-  AcrossEmptyLines: true
-  AcrossComments:  true
+  AcrossEmptyLines: false
+  AcrossComments:  false
   AlignCompound:   true
   PadOperators:    true
 AlignConsecutiveMacros:

cli/main.cpp

@@ -0,0 +1,43 @@
+#include <string>
+#include "utils/structopt.hpp"
+#include "compiler.h"
+
+STRUCTOPT(
+  swallow::compiler::CompilerOptions,
+  file,
+  verbose,
+  dump_ast,
+  dump_types,
+  dump_gmachine_ir);
+
+int main(int argc, char *argv[])
+{
+  try
+    {
+      const std::string command = argv[1] == nullptr ? "" : argv[1];
+      if (command == "c" || command == "compile")
+        {
+          return swallow::compiler::Compiler(
+            structopt::app(
+              "swa compile",
+              swallow::compiler::CompilerOptions::VERSION,
+              swallow::compiler::CompilerOptions::HELP)
+              .parse<swallow::compiler::CompilerOptions>(argc - 1, &argv[1]));
+        }
+      else if (command == "i" || command == "repl")
+        {
+          return 0;
+        }
+      else
+        {
+          std::cout << "USAGE: swa [command]\n\ncommand:\n\tc, compile\tcall the "
+                       "compiler\n\ti, repl\t\tcall the repl interpreter\n";
+        }
+    }
+  catch (const structopt::exception &e)
+    {
+      std::cout << e.what() << '\n';
+      std::cout << e.help() << '\n';
+    }
+  return 0;
+}