user setting enhancements

RvtVa3c/UserSettings.cs

@@ -11,8 +11,17 @@ class UserSettings
     const string _JsonIndent = "JsonIndent";
 
     const string _error_msg_format
-      = "Invalid settings in '{0}'; "
-      + "please add '{1}' = {2} or {3}";
+      = "Invalid settings in '{0}':\r\n\r\n{1}"
+      + "\r\n\r\nPlease add {2} = {3} or {4}.";
+
+    static bool SyntaxError( string path, string s )
+    {
+      Util.ErrorMsg( string.Format(
+        _error_msg_format, path, s, _JsonIndent,
+        Boolean.TrueString, Boolean.FalseString ) );
+
+      return false;
+    }
 
     public static bool JsonIndented
     {
@@ -33,35 +42,35 @@ public static bool JsonIndented
             path ) );
         }
 
-        string s = File.ReadAllText( path );
+        string s1 = File.ReadAllText( path );
 
-        int i = s.IndexOf( _JsonIndent );
+        int i = s1.IndexOf( _JsonIndent );
 
         if( 0 > i )
         {
-          Util.ErrorMsg( string.Format(
-            _error_msg_format, path, _JsonIndent, 
-            Boolean.TrueString, Boolean.FalseString ) );
-
-          return false;
+          return SyntaxError( path, s1 );
         }
 
-        s = s.Substring( i + _JsonIndent.Length );
+        string s = s1.Substring( i
+          + _JsonIndent.Length );
 
         i = s.IndexOf( '=' );
 
         if( 0 > i )
         {
-          Util.ErrorMsg( string.Format(
-            _error_msg_format, path, _JsonIndent,
-            Boolean.TrueString, Boolean.FalseString ) );
-
-          return false;
+          return SyntaxError( path, s1 );
         }
 
         s = s.Substring( i + 1 ).Trim();
 
-        return Util.GetTrueOrFalse( s );
+        bool rc;
+
+        if( !Util.GetTrueOrFalse( s, out rc ) )
+        {
+          return SyntaxError( path, s1 );
+        }
+
+        return rc;
       }
     }
   }

RvtVa3c/Util.cs

@@ -57,38 +57,47 @@ public static int ColorToInt( Color color )
     /// <summary>
     /// Extract a true or false value from the given
     /// string, accepting yes/no, Y/N, true/false, T/F
-    /// and 1/0. Default to false if no valid value is
-    /// given.
+    /// and 1/0. We are extremely tolerant, i.e., any
+    /// value starting with one of the characters y, n,
+    /// t or f is also accepted. Return false if no 
+    /// valid Boolean value can be extracted.
     /// </summary>
-    public static bool GetTrueOrFalse( string s )
+    public static bool GetTrueOrFalse(
+      string s,
+      out bool val )
     {
+      val = false;
+
       if( s.Equals( Boolean.TrueString,
         StringComparison.OrdinalIgnoreCase ) )
       {
+        val = true;
         return true;
       }
       if( s.Equals( Boolean.FalseString,
         StringComparison.OrdinalIgnoreCase ) )
       {
-        return false;
+        return true;
       }
       if( s.Equals( "1" ) )
       {
+        val = true;
         return true;
       }
       if( s.Equals( "0" ) )
       {
-        return false;
+        return true;
       }
       s = s.ToLower();
 
       if( 't' == s[0] || 'y' == s[0] )
       {
+        val = true;
         return true;
       }
       if( 'f' == s[0] || 'n' == s[0] )
       {
-        return false;
+        return true;
       }
       return false;
     }
@@ -133,7 +142,7 @@ public static string ElementDescription(
         typeName, categoryName, familyName,
         symbolName, e.Id.IntegerValue, e.Name );
     }
-    
+
     /// <summary>
     /// Return a dictionary of all the given 
     /// element parameter names and values.

RvtVa3c/Va3cExportContext.cs

@@ -419,13 +419,13 @@ JsonSerializerSettings settings
       settings.NullValueHandling
         = NullValueHandling.Ignore;
 
-      Formatting formatting 
+      Formatting formatting
         = UserSettings.JsonIndented
           ? Formatting.Indented
           : Formatting.None;
 
       File.WriteAllText( _filename,
-        JsonConvert.SerializeObject( 
+        JsonConvert.SerializeObject(
           _container, formatting, settings ) );
 
 #if USE_DYNAMIC_JSON