1 files changed, 65 insertions, 0 deletions
diff --git a/error.h b/error.h
new file mode 100644
index 00000000..52af358a
--- /dev/null
+++ b/error.h
@@ -0,0 +1,65 @@
+#ifndef _ERROR_H
+#define _ERROR_H
+
+#include "journal.h"
+
+#include <exception>
+#include <string>
+#include <sstream>
+
+namespace ledger {
+
+class error : public std::exception {
+  std::string reason;
+ public:
+  error(const std::string& _reason) throw() : reason(_reason) {}
+  virtual ~error() throw() {}
+
+  virtual const char* what() const throw() {
+    return reason.c_str();
+  }
+};
+
+class compute_error : public error {
+ public:
+  compute_error(const std::string& reason) throw() : error(reason) {}
+  virtual ~compute_error() throw() {}
+};
+
+class value_expr_error : public error {
+ public:
+  value_expr_error(const std::string& reason) throw() : error(reason) {}
+  virtual ~value_expr_error() throw() {}
+};
+
+class interval_expr_error : public error {
+ public:
+  interval_expr_error(const std::string& reason) throw() : error(reason) {}
+  virtual ~interval_expr_error() throw() {}
+};
+
+class format_error : public error {
+ public:
+  format_error(const std::string& reason) throw() : error(reason) {}
+  virtual ~format_error() throw() {}
+};
+
+class parse_error : public error {
+  unsigned int line;
+  std::string  file;
+ public:
+  parse_error(const std::string& _file, const unsigned int _line,
+	      const std::string& reason) throw()
+    : error(reason), line(_line), file(_file) {}
+  virtual ~parse_error() throw() {}
+
+  virtual const char* what() const throw() {
+    std::ostringstream msg;
+    msg << file << ", line " << line << ": " << error::what();
+    return msg.str().c_str();
+  }
+};
+
+} // namespace ledger
+
+#endif // _ERROR_H