new file mode 100644
--- /dev/null
+++ b/liboctave/lo-array-gripes.cc
@@ -0,0 +1,164 @@
+/*
+
+Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton
+Copyright (C) 2009 VZLU Prague
+
+This file is part of Octave.
+
+Octave 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 of the License, or (at your
+option) any later version.
+
+Octave 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 Octave; see the file COPYING.  If not, see
+<http://www.gnu.org/licenses/>.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "lo-array-gripes.h"
+#include "lo-error.h"
+
+const char *error_id_nonconformant_args = "Octave:nonconformant-args";
+
+const char *error_id_index_out_of_bounds = "Octave:index-out-of-bounds";
+
+const char *error_id_invalid_index = "Octave:invalid-index";
+
+void
+gripe_nan_to_logical_conversion (void)
+{
+  (*current_liboctave_error_handler)
+    ("invalid conversion from NaN to logical");
+}
+
+void
+gripe_nan_to_character_conversion (void)
+{
+  (*current_liboctave_error_handler)
+    ("invalid conversion from NaN to character");
+}
+
+void
+gripe_nonconformant (const char *op, octave_idx_type op1_len,
+                     octave_idx_type op2_len)
+{
+  const char *err_id = error_id_nonconformant_args;
+
+  (*current_liboctave_error_with_id_handler)
+    (err_id, "%s: nonconformant arguments (op1 len: %d, op2 len: %d)",
+     op, op1_len, op2_len);
+}
+
+void
+gripe_nonconformant (const char *op,
+                     octave_idx_type op1_nr, octave_idx_type op1_nc,
+                     octave_idx_type op2_nr, octave_idx_type op2_nc)
+{
+  const char *err_id = error_id_nonconformant_args;
+
+  (*current_liboctave_error_with_id_handler)
+    (err_id, "%s: nonconformant arguments (op1 is %dx%d, op2 is %dx%d)",
+     op, op1_nr, op1_nc, op2_nr, op2_nc);
+}
+
+void
+gripe_nonconformant (const char *op, const dim_vector& op1_dims,
+                     const dim_vector& op2_dims)
+{
+  const char *err_id = error_id_nonconformant_args;
+
+  std::string op1_dims_str = op1_dims.str ();
+  std::string op2_dims_str = op2_dims.str ();
+
+  (*current_liboctave_error_with_id_handler)
+    (err_id, "%s: nonconformant arguments (op1 is %s, op2 is %s)",
+     op, op1_dims_str.c_str (), op2_dims_str.c_str ());
+}
+
+void
+gripe_index_out_of_range (int nd, int dim, octave_idx_type idx,
+                          octave_idx_type ext)
+{
+  const char *err_id = error_id_index_out_of_bounds;
+
+  switch (nd)
+    {
+    case 1:
+      (*current_liboctave_error_with_id_handler)
+        (err_id, "A(I): index out of bounds; value %d out of bound %d",
+         idx, ext);
+      break;
+
+    case 2:
+      (*current_liboctave_error_with_id_handler)
+        (err_id, "A(I,J): %s index out of bounds; value %d out of bound %d",
+         (dim == 1) ? "row" : "column", idx, ext);
+      break;
+
+    default:
+      (*current_liboctave_error_with_id_handler)
+        (err_id, "A(I,J,...): index to dimension %d out of bounds; value %d out of bound %d",
+         dim, idx, ext);
+      break;
+    }
+}
+
+void
+gripe_del_index_out_of_range (bool is1d, octave_idx_type idx,
+                              octave_idx_type ext)
+{
+  const char *err_id = error_id_index_out_of_bounds;
+
+  (*current_liboctave_error_with_id_handler)
+    (err_id, "A(%s) = []: index out of bounds; value %d out of bound %d",
+     is1d ? "I" : "..,I,..", idx, ext);
+}
+
+void
+gripe_invalid_index (void)
+{
+  const char *err_id = error_id_invalid_index;
+
+  (*current_liboctave_error_with_id_handler)
+    (err_id, "subscript indices must be either positive integers or logicals.");
+}
+
+// FIXME -- the following is a common error message to resize,
+// regardless of whether it's called from assign or elsewhere.  It
+// seems OK to me, but eventually the gripe can be specialized.
+// Anyway, propagating various error messages into procedure is, IMHO,
+// a nonsense.  If anything, we should change error handling here (and
+// throughout liboctave) to allow custom handling of errors
+
+void
+gripe_invalid_resize (void)
+{
+  (*current_liboctave_error_with_id_handler)
+    ("Octave:invalid-resize", 
+     "Invalid resizing operation or ambiguous assignment to an out-of-bounds array element.");
+}
+
+void 
+gripe_invalid_assignment_size (void)
+{
+  (*current_liboctave_error_handler)
+    ("A(I) = X: X must have the same size as I");
+}
+
+void
+gripe_assignment_dimension_mismatch (void)
+{
+  (*current_liboctave_error_handler)
+    ("A(I,J,...) = X: dimensions mismatch");
+}
+