1 files changed, 61 insertions, 0 deletions
diff --git a/tests/variable/driver.cxx b/tests/variable/driver.cxx
new file mode 100644
index 0000000..88167ad
--- /dev/null
+++ b/tests/variable/driver.cxx
@@ -0,0 +1,61 @@
+// file      : tests/variable/driver.cxx -*- C++ -*-
+// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+#include <ios>      // ios_base::failbit, ios_base::badbit
+#include <string>
+#include <cassert>
+#include <cstddef>  // size_t
+#include <iostream>
+
+#include <butl/utility> // operator<<(ostream,exception)
+
+#include <bbot/variable>
+
+using namespace std;
+using namespace butl;
+using namespace bbot;
+
+// Usage: argv[0] [-u]
+//
+// Read variables from STDIN (one per line) and serialize them to STDOUT (also
+// one per line).
+//
+// -u  output variables being unquoted beforehand
+//
+int
+main (int argc, char* argv[])
+{
+  assert (argc <= 2);
+  bool unquote (false);
+
+  if (argc == 2)
+  {
+    assert (argv[1] == string ("-u"));
+    unquote = true;
+  }
+
+  cin.exceptions  (ios_base::badbit);
+  cout.exceptions (ios_base::failbit | ios_base::badbit);
+
+  string s;
+  for (size_t l (1); getline (cin, s); ++l)
+  {
+    try
+    {
+      variable v (move (s));
+
+      cout << (unquote
+               ? v.unquoted ()
+               : static_cast<const string&> (v))
+           << '\n';
+    }
+    catch (const invalid_variable& e)
+    {
+      cerr << l << ':' << 1 + e.pos << ": error: " << e << endl;
+      return 1;
+    }
+  }
+
+  return 0;
+}