Changeset 323 for cpp

Timestamp:

02/02/15 14:53:33 (10 years ago)

Author:

Maciej Komosinski

Message:

Example of skipping an unknown object

Location:

cpp/frams/_demos

Files:

• loader_test_param.cpp (modified) (2 diffs)
• loader_test_param.in (modified) (1 diff)

cpp/frams/_demos/loader_test_param.cpp

@@ -69 +69 @@
 
         loader.addObject(&param);
-        loader.breakOn(MultiParamLoader::OnError + MultiParamLoader::BeforeObject + MultiParamLoader::AfterObject + MultiParamLoader::OnComment);
+        loader.breakOn(MultiParamLoader::OnError + MultiParamLoader::BeforeObject + MultiParamLoader::AfterObject + MultiParamLoader::OnComment + MultiParamLoader::BeforeUnknown);
 
         while (int status = loader.go())
@@ -77 +77 @@
                 case MultiParamLoader::OnComment:
                         fprintf(stderr, "comment: '%s'\n", (const char*)loader.getComment());
+                        break;
+
+                case MultiParamLoader::BeforeUnknown:
+                        // At this point we could change our mind and load the unknown object using MultiParamLoader::loadObjectNow() functions.
+                        // It is "unknown", so we would have to provide its ParamInterface.
+                        // In fact, this method is used not just for truly unknown objects but also for
+                        // dynamic objects that cannot be added using MultiParamLoader.addObject().
+                        fprintf(stderr, "unknown object found: '%s' (will be skipped)\n", (const char*)loader.getObjectName());
                         break;
 

cpp/frams/_demos/loader_test_param.in

@@ -24 +24 @@
 x:just x (string extvalue)
 
+someotherdata:
+this_object:will be ignored
+because:we only load "data:" objects
+
 data:
 text:abcdefghijklmnopqrstuvwxyz