Merge branch 'upstream' into dfsg-orig

[debian/gnuradio] / gruel / src / lib / pmt / pmt_io.cc

diff --git a/gruel/src/lib/pmt/pmt_io.cc b/gruel/src/lib/pmt/pmt_io.cc
new file mode 100644 (file)
index 0000000..179e6b7
--- /dev/null
+++ b/gruel/src/lib/pmt/pmt_io.cc
@@ -0,0 +1,156 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2009 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <vector>
+#include <gruel/pmt.h>
+#include "pmt_int.h"
+#include <sstream>
+
+namespace pmt {
+
+static void
+pmt_write_list_tail(pmt_t obj, std::ostream &port)
+{
+  pmt_write(pmt_car(obj), port); // write the car
+  obj = pmt_cdr(obj);           // step to cdr
+
+  if (pmt_is_null(obj))                 // ()
+    port << ")";
+
+  else if (pmt_is_pair(obj)){   // normal list
+    port << " ";
+    pmt_write_list_tail(obj, port);
+  }
+  else {                        // dotted pair
+    port << " . ";
+    pmt_write(obj, port);
+    port << ")";
+  }
+}
+
+void
+pmt_write(pmt_t obj, std::ostream &port)
+{
+  if (pmt_is_bool(obj)){
+    if (pmt_is_true(obj))
+      port << "#t";
+    else
+      port << "#f";
+  }
+  else if (pmt_is_symbol(obj)){
+    port << pmt_symbol_to_string(obj);
+  }
+  else if (pmt_is_number(obj)){
+    if (pmt_is_integer(obj))
+      port << pmt_to_long(obj);
+    else if (pmt_is_real(obj))
+      port << pmt_to_double(obj);
+    else if (pmt_is_complex(obj)){
+      std::complex<double> c = pmt_to_complex(obj);
+      port << c.real() << '+' << c.imag() << 'i';
+    }
+    else
+      goto error;
+  }
+  else if (pmt_is_null(obj)){
+    port << "()";
+  }
+  else if (pmt_is_pair(obj)){
+    port << "(";
+    pmt_write_list_tail(obj, port);
+  }
+  else if (pmt_is_tuple(obj)){
+    port << "{";
+    size_t len = pmt_length(obj);
+    if (len > 0){
+      port << pmt_tuple_ref(obj, 0);
+      for (size_t i = 1; i < len; i++)
+       port << " " << pmt_tuple_ref(obj, i);
+    }
+    port << "}";
+  }
+  else if (pmt_is_vector(obj)){
+    port << "#(";
+    size_t len = pmt_length(obj);
+    if (len > 0){
+      port << pmt_vector_ref(obj, 0);
+      for (size_t i = 1; i < len; i++)
+       port << " " << pmt_vector_ref(obj, i);
+    }
+    port << ")";
+  }
+  else if (pmt_is_dict(obj)){
+    // FIXME
+    // port << "#<dict " << obj << ">";
+    port << "#<dict>";
+  }
+  else if (pmt_is_uniform_vector(obj)){
+    // FIXME
+    // port << "#<uniform-vector " << obj << ">";
+    port << "#<uniform-vector>";
+  }
+  else {
+  error:
+    // FIXME
+    // port << "#<" << obj << ">";
+    port << "#<unknown>";
+  }
+}
+
+std::ostream& operator<<(std::ostream &os, pmt_t obj)
+{
+  pmt_write(obj, os);
+  return os;
+}
+
+std::string 
+pmt_write_string(pmt_t obj)
+{
+  std::ostringstream s;
+  s << obj;
+  return s.str();
+}
+
+pmt_t
+pmt_read(std::istream &port)
+{
+  throw pmt_notimplemented("notimplemented: pmt_read", PMT_NIL);
+}
+
+void
+pmt_serialize(pmt_t obj, std::ostream &sink)
+{
+  throw pmt_notimplemented("notimplemented: pmt_serialize", obj);
+}
+
+/*!
+ * \brief Create obj from portable byte-serial representation
+ */
+pmt_t 
+pmt_deserialize(std::istream &source)
+{
+  throw pmt_notimplemented("notimplemented: pmt_deserialize", PMT_NIL);
+}
+
+} /* namespace pmt */