added python wrappers for wccl exceptions

CMakeLists.txt

@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 2.8.0)
 
 set(wccl_ver_major "0")
 set(wccl_ver_minor "3")
-set(wccl_ver_patch "1")
+set(wccl_ver_patch "2")
 
 set(LIBWCCL_VERSION "${wccl_ver_major}.${wccl_ver_minor}.${wccl_ver_patch}")
 

swig/exception.i

+#ifndef LIBWCCL_EXCEPTION_H
+#define LIBWCCL_EXCEPTION_H
+
+%module libcorpusexception
+%{
+  #include <libpwrutils/exception.h>
+%}
+
+%include "std_string.i"
+
+%include "libpwrnlperror.i"
+
+namespace Wccl {
+  class WcclError : public PwrNlp::PwrNlpError {
+  public:
+    WcclError(const std::string &what);
+    ~WcclError() throw();
+
+    /* --------------------------------------------------------------------- */
+    std::string scope() const;
+  };
+
+  class InvalidArgument : public WcclError {
+  public:
+    InvalidArgument(const std::string& arg_name, const std::string& reason);
+
+    ~InvalidArgument() throw();
+
+    /* --------------------------------------------------------------------- */
+    std::string info() const;
+    std::string arg_name;
+    std::string reason;
+  };
+
+  %exception {
+    try {
+      $action
+    } catch (Wccl::InvalidArgument &e) {
+      PyErr_SetString(PyExc_IndexError, e.info().c_str());
+      return NULL;
+    } catch (PwrNlp::PwrNlpError &e) {
+      PyErr_SetString(PyExc_IndexError, e.info().c_str());
+      return NULL;
+    }
+  }
+}
+
+using namespace std;
+using namespace Wccl;
+
+#endif /* SWIG_LIBWCCL_EXCEPTION_I */
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