Doxygen modified

Change-Id: I47042fb348741c3479ca8ecaf051ea5bd50b7e94
Signed-off-by: Somin Kim <somin926.kim@samsung.com>

diff --git a/include/context_history.h b/include/context_history.h
index 70a91fc..9c388fe 100644 (file)
--- a/include/context_history.h
+++ b/include/context_history.h
@@ -30,70 +30,70 @@ extern "C" {
  */
 
 /**
- * @brief      The attribute key denoting "application id"
+ * @brief      Definition for the attribute key denoting "application id".
  * @details    This can be used as a key of context_history_record_get_string().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_APP_ID "AppId"
 
 /**
- * @brief      The attribute key denoting "total count"
+ * @brief      Definition for the attribute key denoting "total count".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_TOTAL_COUNT "TotalCount"
 
 /**
- * @brief      The attribute key denoting "total amount"
+ * @brief      Definition for the attribute key denoting "total amount".
  * @details    This can be used as a key of context_history_record_get_double().
  * @since_tizen 3.0
  */
 #define CONTEXT_HISTORY_TOTAL_AMOUNT "TotalAmount"
 
 /**
- * @brief      The attribute key denoting "total duration"
+ * @brief      Definition for the attribute key denoting "total duration".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_TOTAL_DURATION "TotalDuration"
 
 /**
- * @brief      The attribute key denoting "last time"
+ * @brief      Definition for the attribute key denoting "last time".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_LAST_TIME "LastTime"
 
 /**
- * @brief      The attribute key denoting "hour of day"
+ * @brief      Definition for the attribute key denoting "hour of day".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_HOUR_OF_DAY "HourOfDay"
 
 /**
- * @brief      The attribute key denoting "audio jack status"
+ * @brief      Definition for the attribute key denoting "audio jack status".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_AUDIO_JACK "AudioJack"
 
 /**
- * @brief      The attribute key denoting "system volume"
+ * @brief      Definition for the attribute key denoting "system volume".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_SYSTEM_VOLUME "SystemVolume"
 
 /**
- * @brief      The attribute key denoting "media volume"
+ * @brief      Definition for the attribute key denoting "media volume".
  * @details    This can be used as a key of context_history_record_get_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_HISTORY_MEDIA_VOLUME "MediaVolume"
 
 /**
- * @brief      The attribute key denoting "address"
+ * @brief      Definition for the attribute key denoting "address".
  * @details    This can be used as a key of context_history_record_get_string().
  * @since_tizen 2.4
  */
@@ -179,25 +179,25 @@ typedef enum {
 } context_history_filter_communication_type_e;
 
 /**
- * @brief              Context history handle for retrieving statistics and patterns.
+ * @brief Retrieving statistics and patterns using context history handle.
  * @since_tizen 2.4
  */
 typedef struct _context_history_handle_s* context_history_h;
 
 /**
- * @brief              History filter handle to be used to compute statistics and patterns.
+ * @brief Computing statistics and patterns using history filter handle.
  * @since_tizen 2.4
  */
 typedef struct _context_history_filter_handle_s* context_history_filter_h;
 
 /**
- * @brief              History list handle. It contains one or multiple records.
+ * @brief One or multiple records contained in history list handle.
  * @since_tizen 2.4
  */
 typedef struct _context_history_list_handle_s* context_history_list_h;
 
 /**
- * @brief              History record handle. It contains one or multiple attributes.
+ * @brief One or multiple attributes contained in history list handle.
  * @since_tizen 2.4
  */
 typedef struct _context_history_record_handle_s* context_history_record_h;
@@ -209,7 +209,7 @@ typedef struct _context_history_record_handle_s* context_history_record_h;
  *
  * @param[out] handle    Handle to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  * @retval             #CONTEXT_HISTORY_ERROR_OUT_OF_MEMORY                    Out of memory
@@ -226,7 +226,7 @@ int context_history_create(context_history_h* handle);
  *
  * @param[in]  handle   Handle to be released
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  *
@@ -241,7 +241,7 @@ int context_history_destroy(context_history_h handle);
  *
  * @param[out] filter          Filter handle to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_HISTORY_ERROR_OUT_OF_MEMORY            Memory allocation failed
@@ -257,7 +257,7 @@ int context_history_filter_create(context_history_filter_h* filter);
  *
  * @param[in]  filter          Filter handle to be released
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -274,7 +274,7 @@ int context_history_filter_destroy(context_history_filter_h filter);
  * @param[in]  filter_type     The filter type to set
  * @param[in]  value           The value to be set
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -292,7 +292,7 @@ int context_history_filter_set_int(context_history_filter_h filter, context_hist
  * @param[in]  filter_type     The filter type to set
  * @param[in]  value           The value to be set
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -317,7 +317,7 @@ int context_history_filter_set_string(context_history_filter_h filter, context_h
  * @param[in]  filter          Filter to be used to compute statistics or patterns. This can not be @c NULL
  * @param[out] list   History data retrieved. This should be freed after use
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  * @retval             #CONTEXT_HISTORY_ERROR_OPERATION_FAILED         Operation failed
@@ -336,7 +336,7 @@ int context_history_get_list(context_history_h handle, context_history_data_e da
  * @param[in]  list    The history data list handle
  * @param[out] count   The count of the data list
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  * @retval             #CONTEXT_HISTORY_ERROR_OPERATION_FAILED         Operation failed
@@ -356,7 +356,7 @@ int context_history_list_get_count(context_history_list_h list, int* count);
  * @param[in]  list      The context history list handle
  * @param[out] record   History data record retrieved
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  * @retval             #CONTEXT_HISTORY_ERROR_OPERATION_FAILED         Operation failed
@@ -373,7 +373,7 @@ int context_history_list_get_current(context_history_list_h list, context_histor
  *
  * @param[in]  list    The context history list handle
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  *
@@ -389,7 +389,7 @@ int context_history_list_move_first(context_history_list_h list);
  *
  * @param[in]  list    The context history list handle
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  * @retval             #CONTEXT_HISTORY_ERROR_NO_DATA                  Requested data does not exist
@@ -406,7 +406,7 @@ int context_history_list_move_next(context_history_list_h list);
  *
  * @param[in]  list    The context history data handle
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER                Invalid parameter
  *
@@ -421,10 +421,10 @@ int context_history_list_destroy(context_history_list_h list);
  * @since_tizen 2.4
  *
  * @param[in]  record          The record handle
- * @param[in]  key                     The key of the attribute to get
+ * @param[in]  key                     The key of attribute to get
  * @param[out] value           The result value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -442,10 +442,10 @@ int context_history_record_get_int(context_history_record_h record, const char*
  * @remarks            @c value must be released using free().
  *
  * @param[in]  record          The record handle
- * @param[in]  key                     The key of the attribute to get
+ * @param[in]  key                     The key of attribute to get
  * @param[out] value           The result value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -465,7 +465,7 @@ int context_history_record_get_string(context_history_record_h record, const cha
  * @param[in]  key                     The key of the attribute to get
  * @param[out] value           The result value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -481,7 +481,7 @@ int context_history_record_get_double(context_history_record_h record, const cha
  *
  * @param[in]  record          The record handle
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_HISTORY_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_HISTORY_ERROR_INVALID_PARAMETER        Invalid parameter
  *

diff --git a/include/context_trigger.h b/include/context_trigger.h
index 3d3719b..9e83478 100644 (file)
--- a/include/context_trigger.h
+++ b/include/context_trigger.h
@@ -31,7 +31,7 @@ extern "C" {
 #endif /* __cplusplus */
 
 /**
- * @brief      The operator "is equal to".
+ * @brief      Definition for the operator "is equal to".
  * @details    This can be used as operators of context_trigger_rule_entry_add_comparison_int()
  *                     and context_trigger_rule_entry_add_comparison_string().
  * @since_tizen 2.4
@@ -39,7 +39,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_EQUAL_TO "=="
 
 /**
- * @brief      The operator "is not equal to".
+ * @brief      Definition for the operator "is not equal to".
  * @details    This can be used as operators of context_trigger_rule_entry_add_comparison_int()
  *                     and context_trigger_rule_entry_add_comparison_string().
  * @since_tizen 2.4
@@ -47,49 +47,49 @@ extern "C" {
 #define CONTEXT_TRIGGER_NOT_EQUAL_TO "!="
 
 /**
- * @brief      The operator "is greater than".
+ * @brief      Definition for the operator "is greater than".
  * @details    This can be used as operators of context_trigger_rule_entry_add_comparison_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_TRIGGER_GREATER_THAN ">"
 
 /**
- * @brief      The operator "is greater than or equal to".
+ * @brief      Definition for the operator "is greater than or equal to".
  * @details    This can be used as operators of context_trigger_rule_entry_add_comparison_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_TRIGGER_GREATER_THAN_OR_EQUAL_TO ">="
 
 /**
- * @brief      The operator "is less than".
+ * @brief      Definition for the operator "is less than".
  * @details    This can be used as operators of context_trigger_rule_entry_add_comparison_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_TRIGGER_LESS_THAN "<"
 
 /**
- * @brief      The operator "is less than or equal to".
+ * @brief      Definition for the operator "is less than or equal to".
  * @details    This can be used as operators of context_trigger_rule_entry_add_comparison_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_TRIGGER_LESS_THAN_OR_EQUAL_TO "<="
 
 /**
- * @brief      Logical true.
+ * @brief      Definition for the logical true.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_TRIGGER_TRUE 1
 
 /**
- * @brief      Logical false.
+ * @brief      Definition for the logical false.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_int().
  * @since_tizen 2.4
  */
 #define CONTEXT_TRIGGER_FALSE 0
 
 /**
- * @brief      The attribute key denoting "time of day".
+ * @brief      Definition for the attribute key denoting "time of day".
  * @details    This can be used as a key of context_trigger_rule_entry_add_option_string(),
  *                     or left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     When being used as option, it is time interval of the day. For example, "13-15" denotes "from 1 PM to 3 PM".
@@ -100,7 +100,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_TIME_OF_DAY "TimeOfDay"
 
 /**
- * @brief      The attribute key denoting "day of week".
+ * @brief      Definition for the attribute key denoting "day of week".
  * @details    This can be used as a key of context_trigger_rule_entry_add_option_string(),
  *                     or left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     As the right operands of this attribute, one of the following values are allowed:
@@ -111,7 +111,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_DAY_OF_WEEK "DayOfWeek"
 
 /**
- * @brief      The attribute key denoting "day of month".
+ * @brief      Definition for the attribute key denoting "day of month".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     The valid range of the corresponding right operands is from 1 to 31.
  * @since_tizen 2.4
@@ -119,7 +119,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_DAY_OF_MONTH "DayOfMonth"
 
 /**
- * @brief      The attribute key denoting boolean states of "is connected".
+ * @brief      Definition for the attribute key denoting boolean states of "is connected".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     As the right operands of this attribute, one of the following values are allowed:
  *                     #CONTEXT_TRIGGER_TRUE and #CONTEXT_TRIGGER_FALSE.
@@ -128,7 +128,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_IS_CONNECTED "IsConnected"
 
 /**
- * @brief      The attribute key denoting boolean states of "is charging".
+ * @brief      Definition for the attribute key denoting boolean states of "is charging".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     As the right operands of this attribute, one of the following values are allowed:
  *                     #CONTEXT_TRIGGER_TRUE and #CONTEXT_TRIGGER_FALSE.
@@ -137,7 +137,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_IS_CHARGING "IsCharging"
 
 /**
- * @brief      The attribute key denoting boolean states of "is enabled".
+ * @brief      Definition for the attribute key denoting boolean states of "is enabled".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     As the right operands of this attribute, one of the following values are allowed:
  *                     #CONTEXT_TRIGGER_TRUE and #CONTEXT_TRIGGER_FALSE.
@@ -146,7 +146,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_IS_ENABLED "IsEnabled"
 
 /**
- * @brief      The attribute key denoting "level".
+ * @brief      Definition for the attribute key denoting "level".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands values.
  * @since_tizen 2.4
@@ -154,7 +154,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_LEVEL "Level"
 
 /**
- * @brief      The attribute key denoting "state".
+ * @brief      Definition for the attribute key denoting "state".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -162,7 +162,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_STATE "State"
 
 /**
- * @brief      The attribute key denoting "BSSID".
+ * @brief      Definition for the attribute key denoting "BSSID".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -170,7 +170,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_BSSID "BSSID"
 
 /**
- * @brief      The attribute key denoting "type".
+ * @brief      Definition for the attribute key denoting "type".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -178,7 +178,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_TYPE "Type"
 
 /**
- * @brief      The attribute key denoting "event".
+ * @brief      Definition for the attribute key denoting "event".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -186,7 +186,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_EVENT "Event"
 
 /**
- * @brief      The attribute key denoting "accuracy".
+ * @brief      Definition for the attribute key denoting "accuracy".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -194,7 +194,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_ACCURACY "Accuracy"
 
 /**
- * @brief      The attribute key denoting "medium".
+ * @brief      Definition for the attribute key denoting "medium".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -202,7 +202,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_MEDIUM "Medium"
 
 /**
- * @brief      The attribute key denoting "place id".
+ * @brief      Definition for the attribute key denoting "place id".
  * @details    This can be used as a key of context_trigger_rule_entry_add_option_int().@n
  *                     See the programming guide to find the corresponding trigger events.
  * @since_tizen 2.4
@@ -210,7 +210,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_PLACE_ID "PlaceId"
 
 /**
- * @brief      The attribute key denoting "application id".
+ * @brief      Definition for the attribute key denoting "application id".
  * @details    This can be used as a key of context_trigger_rule_entry_add_option_string().@n
  *                     See the programming guide to find the corresponding trigger events.
  * @since_tizen 2.4
@@ -218,7 +218,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_APP_ID "AppId"
 
 /**
- * @brief      The attribute key denoting "address".
+ * @brief      Definition for the attribute key denoting "address".
  * @details    This can be used as a key of context_trigger_rule_entry_add_option_string(),
  *                     or context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide and CAPI_CONTEXT_TRIGGER_MODULE_OPTION_FORMAT to find the corresponding items.
@@ -227,7 +227,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_ADDRESS "Address"
 
 /**
- * @brief      The attribute key denoting "rank".
+ * @brief      Definition for the attribute key denoting "rank".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -235,7 +235,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_RANK "Rank"
 
 /**
- * @brief      The attribute key denoting "total count".
+ * @brief      Definition for the attribute key denoting "total count".
  * @details    This can be used as left operands of context_trigger_rule_entry_add_comparison_int().@n
  *                     See the programming guide to find available right operands.
  * @since_tizen 2.4
@@ -243,7 +243,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_TOTAL_COUNT "TotalCount"
 
 /**
- * @brief      The attribute value denoting Monday.
+ * @brief      Definition for the attribute value denoting Monday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -252,7 +252,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_MON "Mon"
 
 /**
- * @brief      The attribute value denoting Tuesday.
+ * @brief      Definition for the attribute value denoting Tuesday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -261,7 +261,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_TUE "Tue"
 
 /**
- * @brief      The attribute value denoting Wednesday.
+ * @brief      Definition for the attribute value denoting Wednesday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -270,7 +270,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_WED "Wed"
 
 /**
- * @brief      The attribute value denoting Thursday.
+ * @brief      Definition for the attribute value denoting Thursday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -279,7 +279,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_THU "Thu"
 
 /**
- * @brief      The attribute value denoting Friday.
+ * @brief      Definition for the attribute value denoting Friday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -288,7 +288,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_FRI "Fri"
 
 /**
- * @brief      The attribute value denoting Saturday.
+ * @brief      Definition for the attribute value denoting Saturday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -297,7 +297,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_SAT "Sat"
 
 /**
- * @brief      The attribute value denoting Sunday.
+ * @brief      Definition for the attribute value denoting Sunday.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -306,7 +306,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_SUN "Sun"
 
 /**
- * @brief      The attribute value denoting Weekdays.
+ * @brief      Definition for the attribute value denoting Weekdays.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -315,7 +315,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_WEEKDAY "Weekday"
 
 /**
- * @brief      The attribute value denoting Weekends.
+ * @brief      Definition for the attribute value denoting Weekends.
  * @details    This can be used as a value of context_trigger_rule_entry_add_option_string()
  *                     or right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding option keys or left operand attribute keys.
@@ -324,7 +324,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_WEEKEND "Weekend"
 
 /**
- * @brief      The attribute value denoting the "empty" state.
+ * @brief      Definition for the attribute value denoting the "empty" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -332,7 +332,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_EMPTY "Empty"
 
 /**
- * @brief      The attribute value denoting the "critical" state.
+ * @brief      Definition for the attribute value denoting the "critical" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -340,7 +340,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_CRITICAL "Critical"
 
 /**
- * @brief      The attribute value denoting the "low" state.
+ * @brief      Definition for the attribute value denoting the "low" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -348,7 +348,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_LOW "Low"
 
 /**
- * @brief      The attribute value denoting the "normal" state.
+ * @brief      Definition for the attribute value denoting the "normal" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -356,7 +356,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_NORMAL "Normal"
 
 /**
- * @brief      The attribute value denoting the "high" state.
+ * @brief      Definition for the attribute value denoting the "high" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -364,7 +364,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_HIGH "High"
 
 /**
- * @brief      The attribute value denoting the "full" state.
+ * @brief      Definition for the attribute value denoting the "full" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -372,7 +372,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_FULL "Full"
 
 /**
- * @brief      The attribute value denoting the "disabled" state.
+ * @brief      Definition for the attribute value denoting the "disabled" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -380,7 +380,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_DISABLED "Disabled"
 
 /**
- * @brief      The attribute value denoting the "searching" state.
+ * @brief      Definition for the attribute value denoting the "searching" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -388,7 +388,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_SEARCHING "Searching"
 
 /**
- * @brief      The attribute value denoting the "connecting" state.
+ * @brief      Definition for the attribute value denoting the "connecting" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -396,7 +396,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_CONNECTING "Connecting"
 
 /**
- * @brief      The attribute value denoting the "connected" state.
+ * @brief      Definition for the attribute value denoting the "connected" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -404,7 +404,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_CONNECTED "Connected"
 
 /**
- * @brief      The attribute value denoting the "unconnected" state.
+ * @brief      Definition for the attribute value denoting the "unconnected" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -412,7 +412,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_UNCONNECTED "Unconnected"
 
 /**
- * @brief      The attribute value denoting the "idle" state.
+ * @brief      Definition for the attribute value denoting the "idle" state.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -420,7 +420,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_IDLE "Idle"
 
 /**
- * @brief      The attribute value denoting the "voice" type.
+ * @brief      Definition for the attribute value denoting the "voice" type.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -428,7 +428,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_VOICE "Voice"
 
 /**
- * @brief      The attribute value denoting the "video" type.
+ * @brief      Definition for the attribute value denoting the "video" type.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -436,7 +436,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_VIDEO "Video"
 
 /**
- * @brief      The attribute value denoting the "headset" type.
+ * @brief      Definition for the attribute value denoting the "headset" type.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -444,7 +444,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_HEADSET "Headset"
 
 /**
- * @brief      The attribute value denoting the "bluetooth" type.
+ * @brief      Definition for the attribute value denoting the "bluetooth" type.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -452,7 +452,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_BLUETOOTH "Bluetooth"
 
 /**
- * @brief      The attribute value denoting the "received" event.
+ * @brief      Definition for the attribute value denoting the "received" event.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -460,7 +460,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_RECEIVED "Received"
 
 /**
- * @brief      The attribute value denoting the "sent" event.
+ * @brief      Definition for the attribute value denoting the "sent" event.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -468,7 +468,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_SENT "Sent"
 
 /**
- * @brief      The attribute value denoting the "SMS" type.
+ * @brief      Definition for the attribute value denoting the "SMS" type.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -476,7 +476,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_SMS "SMS"
 
 /**
- * @brief      The attribute value denoting the "MMS" type.
+ * @brief      Definition for the attribute value denoting the "MMS" type.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -484,7 +484,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_MMS "MMS"
 
 /**
- * @brief      The attribute value denoting the "my profile" view.
+ * @brief      Definition for the attribute value denoting the "my profile" view.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 3.0
@@ -492,7 +492,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_MY_PROFILE "MyProfile"
 
 /**
- * @brief      The attribute value denoting the "person" view.
+ * @brief      Definition for the attribute value denoting the "person" view.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 3.0
@@ -500,7 +500,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_PERSON "Person"
 
 /**
- * @brief      The attribute value denoting the "Changed" event.
+ * @brief      Definition for the attribute value denoting the "Changed" event.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 3.0
@@ -508,7 +508,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_CHANGED "Changed"
 
 /**
- * @brief      The attribute value denoting the "detected" event.
+ * @brief      Definition for the attribute value denoting the "detected" event.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -516,7 +516,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_DETECTED "Detected"
 
 /**
- * @brief      The attribute value denoting the "in" event.
+ * @brief      Definition for the attribute value denoting the "in" event.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -524,7 +524,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_IN "In"
 
 /**
- * @brief      The attribute value denoting the "out" event.
+ * @brief      Definition for the attribute value denoting the "out" event.
  * @details    This can be used as right operands of context_trigger_rule_entry_add_comparison_string().@n
  *                     See the programming guide to find the corresponding left operand attribute keys.
  * @since_tizen 2.4
@@ -532,7 +532,7 @@ extern "C" {
 #define CONTEXT_TRIGGER_OUT "Out"
 
 /**
- * @brief      Enumeration of error codes for context trigger API.
+ * @brief      Enumeration for context trigger API of error codes.
  * @since_tizen 2.4
  */
 typedef enum {
@@ -605,13 +605,13 @@ typedef enum {
 } context_trigger_logical_type_e;
 
 /**
- * @brief              Handle for editing a trigger rule.
+ * @brief              Trigger rule editing handle.
  * @since_tizen 2.4
  */
 typedef struct _context_trigger_rule_s* context_trigger_rule_h;
 
 /**
- * @brief              Handle for editing an event or a condition, which is added to a rule.
+ * @brief              Editing an event or a condition, which is added to a rule using handle.
  * @since_tizen 2.4
  */
 typedef struct _context_trigger_rule_entry_s* context_trigger_rule_entry_h;
@@ -629,7 +629,7 @@ typedef struct _context_trigger_rule_entry_s* context_trigger_rule_entry_h;
  * @param[in]  rule            The rule to register
  * @param[out] rule_id         The ID assigned to the @a rule
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_PERMISSION_DENIED        Permission denied
@@ -651,7 +651,7 @@ int context_trigger_add_rule(context_trigger_rule_h rule, int* rule_id);
  *
  * @param[in]  rule_id         The ID of the rule to be removed
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -670,7 +670,7 @@ int context_trigger_remove_rule(int rule_id);
  *
  * @param[in]  rule_id         The ID of the rule to be enabled
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_NOT_SUPPORTED            Unsupported event/condition contained
@@ -690,7 +690,7 @@ int context_trigger_enable_rule(int rule_id);
  *
  * @param[in]  rule_id         The ID of the rule to be disabled
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -713,7 +713,7 @@ int context_trigger_disable_rule(int rule_id);
  * @param[out] disabled_rule_ids       The IDs of the inactive rules
  * @param[out] disabled_rule_count     The number of the inactive rules
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -731,7 +731,7 @@ int context_trigger_get_own_rule_ids(int** enabled_rule_ids, int* enabled_rule_c
  * @param[in]  rule_id         The ID of the rule to be retrieved
  * @param[out] rule            The rule retrieved
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -755,7 +755,7 @@ int context_trigger_get_rule_by_id(int rule_id, context_trigger_rule_h* rule);
  * @param[in]  logical_type    The logical operator
  * @param[out] rule                    The rule handle to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Memory allocation failed
@@ -770,7 +770,7 @@ int context_trigger_rule_create(context_trigger_logical_type_e logical_type, con
  *
  * @param[in]  rule            The rule handle to be released
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -786,7 +786,7 @@ int context_trigger_rule_destroy(context_trigger_rule_h rule);
  * @param[in]  rule            The rule
  * @param[in]  entry           The event or condition entry to be added to the rule
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -814,7 +814,7 @@ int context_trigger_rule_add_entry(context_trigger_rule_h rule, context_trigger_
  * @param[in]  rule                    The rule
  * @param[in]  app_control             The App Control, which will be used to launch an application
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_PERMISSION_DENIED        Permission denied
@@ -841,7 +841,7 @@ int context_trigger_rule_set_action_app_control(context_trigger_rule_h rule, app
  * @param[in]  icon_path               The icon file path
  * @param[in]  app_control             The app control
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_PERMISSION_DENIED        Permission denied
@@ -858,7 +858,7 @@ int context_trigger_rule_set_action_notification(context_trigger_rule_h rule, co
  * @param[in]  rule                    The rule
  * @param[in]  description             The description to be set
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -877,7 +877,7 @@ int context_trigger_rule_set_description(context_trigger_rule_h rule, const char
  * @param[in]  rule                    The rule
  * @param[out] description             The description of the rule
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -908,7 +908,7 @@ int context_trigger_rule_get_description(context_trigger_rule_h rule, char** des
  * @param[in]  logical_type    The logical operator
  * @param[out] entry                   The event entry to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Memory allocation failed
@@ -925,7 +925,7 @@ int context_trigger_rule_event_create(context_trigger_event_e event_item, contex
  * @param[in]  event_item              The contextual event item
  * @param[out] supported               If supported, @c true; Otherwise, @c false
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OPERATION_FAILED         Operation failed
@@ -952,7 +952,7 @@ int context_trigger_rule_event_is_supported(context_trigger_event_e event_item,
  * @param[in]  logical_type    The logical operator
  * @param[out] entry                   The condition entry to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Memory allocation failed
@@ -969,7 +969,7 @@ int context_trigger_rule_condition_create(context_trigger_condition_e condition_
  * @param[in]  condition_item  The contextual condition item
  * @param[out] supported               If supported, @c true; Otherwise, @c false
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OPERATION_FAILED         Operation failed
@@ -982,7 +982,7 @@ int context_trigger_rule_condition_is_supported(context_trigger_condition_e cond
  *
  * @param[in]  entry           The event or condition entry
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  *
@@ -1000,7 +1000,7 @@ int context_trigger_rule_entry_destroy(context_trigger_rule_entry_h entry);
  * @param[in]  option_key              The option key
  * @param[in]  value                   The option value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1020,7 +1020,7 @@ int context_trigger_rule_entry_add_option_int(context_trigger_rule_entry_h entry
  * @param[in]  option_key              The option key
  * @param[in]  value                   The option value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1040,7 +1040,7 @@ int context_trigger_rule_entry_add_option_string(context_trigger_rule_entry_h en
  * @param[in]  option_key              The option key
  * @param[in]  event_data_key  The event data key of which the corresponding data value will be used as the option parameter
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1061,7 +1061,7 @@ int context_trigger_rule_entry_add_option(context_trigger_rule_entry_h entry, co
  * @param[in]  logical_type    The logical operator
  * @param[in]  key                             The attribute key
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1087,7 +1087,7 @@ int context_trigger_rule_entry_add_key(context_trigger_rule_entry_h entry, conte
  * @param[in]  comp_operator   The comparison operator
  * @param[in]  value                   The right operand value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1112,7 +1112,7 @@ int context_trigger_rule_entry_add_comparison_int(context_trigger_rule_entry_h e
  * @param[in]  comp_operator   The comparison operator
  * @param[in]  value                   The right operand value
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1135,7 +1135,7 @@ int context_trigger_rule_entry_add_comparison_string(context_trigger_rule_entry_
  * @param[in]  comp_operator   The comparison operator
  * @param[in]  event_data_key  The event data key of which the corresponding data value will be used as the right operand
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1158,7 +1158,7 @@ int context_trigger_rule_entry_add_comparison(context_trigger_rule_entry_h entry
  * @param[in]  name                    The name of a custom contextual data item
  * @param[in]  attr_template   The attribute template which explains contextual data schema in JSON format
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Out of memory
@@ -1178,7 +1178,7 @@ int context_trigger_custom_register(const char* name, const char* attr_template)
  *
  * @param[in]  name                    The name of a custom contextual data item
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OPERATION_FAILED         Operation failed
@@ -1201,7 +1201,7 @@ int context_trigger_custom_unregister(const char* name);
  * @param[in]  name                    The name of custom contextual data item
  * @param[in]  fact                    The contextual data to be provided in JSON format
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_NOT_SUPPORTED            Unsupported event/condition contained
@@ -1221,7 +1221,7 @@ int context_trigger_custom_publish(const char* name, const char* fact);
  * @param[in]  logical_type    The logical operator
  * @param[out] entry                   The event entry to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Memory allocation failed
@@ -1245,7 +1245,7 @@ int context_trigger_rule_custom_event_create(const char* event_item, const char*
  * @param[in]  logical_type    The logical operator
  * @param[out] entry                   The condition entry to be initialized
  *
- * @return             0 on success, otherwise a negative error value
+ * @return             @c 0 on success, otherwise a negative error value
  * @retval             #CONTEXT_TRIGGER_ERROR_NONE                                     Successful
  * @retval             #CONTEXT_TRIGGER_ERROR_INVALID_PARAMETER        Invalid parameter
  * @retval             #CONTEXT_TRIGGER_ERROR_OUT_OF_MEMORY            Memory allocation failed