From ba22a750093f5b918aefd58ba698f38dff6a14e1 Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 摹曛, 20 6月 2013 22:03:49 +0800
Subject: [PATCH] Unexpected character handling

---
 libscpi/inc/scpi/error.h |   48 ++++++++++++++++++++++++++++--------------------
 1 files changed, 28 insertions(+), 20 deletions(-)

diff --git a/libscpi/inc/scpi/error.h b/libscpi/inc/scpi/error.h
index 615e9da..bf486b9 100644
--- a/libscpi/inc/scpi/error.h
+++ b/libscpi/inc/scpi/error.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2012-2013 Jan Breuer,
  *
  * All Rights Reserved
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
@@ -11,7 +11,7 @@
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -28,10 +28,10 @@
 /**
  * @file   scpi_error.h
  * @date   Thu Nov 15 10:58:45 UTC 2012
- * 
+ *
  * @brief  Error handling and storing routines
- * 
- * 
+ *
+ *
  */
 
 #ifndef SCPI_ERROR_H
@@ -42,27 +42,35 @@
 #ifdef	__cplusplus
 extern "C" {
 #endif
-    
+
     void SCPI_ErrorInit(scpi_t * context);
     void SCPI_ErrorClear(scpi_t * context);
     int16_t SCPI_ErrorPop(scpi_t * context);
     void SCPI_ErrorPush(scpi_t * context, int16_t err);
-    int32_t SCPI_ErrorCount(scpi_t * context);    
+    int32_t SCPI_ErrorCount(scpi_t * context);
     const char * SCPI_ErrorTranslate(int16_t err);
 
-#define SCPI_ERROR_SYNTAX               -102
-#define SCPI_ERROR_INVALID_SEPARATOR    -103
-#define SCPI_ERROR_UNDEFINED_HEADER     -113
-#define SCPI_ERROR_PARAMETER_NOT_ALLOWED        -108
-#define SCPI_ERROR_MISSING_PARAMETER    -109
-#define SCPI_ERROR_INVALID_SUFFIX       -131
-#define SCPI_ERROR_SUFFIX_NOT_ALLOWED   -138
-#define SCPI_ERROR_UNKNOWN_PARAMETER    -199 // TODO: fix name and value
-#define SCPI_ERROR_INVALID_PARAMETER    -198 // TODO: fix name and value
-    
-    
-#define SCPI_ERROR_EXECUTION_ERROR      -200
-    
+/* http://en.wikipedia.org/wiki/X_Macro */
+#define LIST_OF_ERRORS \
+    X(SCPI_ERROR_SYNTAX,               -102, "Syntax error")                   \
+    X(SCPI_ERROR_INVALID_SEPARATOR,    -103, "Invalid separator")              \
+    X(SCPI_ERROR_UNDEFINED_HEADER,     -113, "Undefined header")               \
+    X(SCPI_ERROR_PARAMETER_NOT_ALLOWED,-108, "Parameter not allowed")          \
+    X(SCPI_ERROR_MISSING_PARAMETER,    -109, "Missing parameter")              \
+    X(SCPI_ERROR_INVALID_SUFFIX,       -131, "Invalid suffix")                 \
+    X(SCPI_ERROR_SUFFIX_NOT_ALLOWED,   -138, "Suffix not allowed")             \
+    X(SCPI_ERROR_UNKNOWN_PARAMETER,    -199, "Unknown parameter")              \
+    X(SCPI_ERROR_INVALID_PARAMETER,    -198, "Invalid parameter")              \
+    X(SCPI_ERROR_UNEXPECTED_CHARACTER, -197, "Unexpected character")           \
+    X(SCPI_ERROR_EXECUTION_ERROR,      -200, "Execution error")                \
+
+
+enum {
+#define X(def, val, str) def = val,
+LIST_OF_ERRORS
+#undef X
+};
+
 #ifdef	__cplusplus
 }
 #endif

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