context: Do not allow show, list or none as new context names

- Thanks to silviof.

src/commands/CmdContext.cpp

@@ -137,6 +137,12 @@ void CmdContext::defineContext (const std::vector <std::string>& words, std::str
     auto name = "context." + words[1];
     auto value = joinWords (words, 2);
 
+    // Make sure nobody creates a context with name 'list', 'none' or 'show'
+    if (words[1] == "none" or words[1] == "list" or words[1] == "show")
+    {
+      throw format (STRING_CMD_CONTEXT_DEF_INVLD, words[1]);
+    }
+
     // Check if the value is a proper filter by filtering current pending.data
     Filter filter;
     std::vector <Task> filtered;

src/l10n/deu-DEU.h

@@ -528,6 +528,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/eng-USA.h

@@ -526,6 +526,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definition aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/epo-RUS.h

@@ -528,6 +528,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/esp-ESP.h

@@ -540,6 +540,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Definición de contexto abortada."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Validación de filtro fallida: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "El filtro '{1}' coincide con 0 tareas pendientes. ¿Quiere continuar?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Contexto '{1}' eliminado."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Contexto '{1}' no eliminado."
 #define STRING_CMD_CONTEXT_DEL_USAG  "El nombre del contexto necesita ser especificado."

src/l10n/fra-FRA.h

@@ -530,6 +530,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/ita-ITA.h

@@ -529,6 +529,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/jpn-JPN.h

@@ -530,6 +530,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/pol-POL.h

@@ -530,6 +530,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."

src/l10n/por-PRT.h

@@ -530,6 +530,7 @@
 #define STRING_CMD_CONTEXT_DEF_ABRT  "Context definiton aborted."
 #define STRING_CMD_CONTEXT_DEF_ABRT2 "Filter validation failed: {1}"
 #define STRING_CMD_CONTEXT_DEF_CONF  "The filter '{1}' matches 0 pending tasks. Do you wish to continue?"
+#define STRING_CMD_CONTEXT_DEF_INVLD "The name '{1}' is reserved and not allowed to use as a context name."
 #define STRING_CMD_CONTEXT_DEL_SUCC  "Context '{1}' deleted."
 #define STRING_CMD_CONTEXT_DEL_FAIL  "Context '{1}' not deleted."
 #define STRING_CMD_CONTEXT_DEL_USAG  "Context name needs to be specified."