[code] The Python console compiles and executes commands entered.

It stores and displays the result in the console store.
An empty line returned at the end of the execution is deleted.

Change-Id: Ic90e02e2d91d0a0033413da0588032d9450aefd0

apps/code/console_store.cpp

@@ -50,6 +50,15 @@ void ConsoleStore::pushResult(const char * text, size_t length) {
   push(ResultMarker, text, length);
 }
 
+
+void ConsoleStore::deleteLastLineIfEmpty() {
+  ConsoleLine lastLine = lineAtIndex(numberOfLines()-1);
+  char lastLineFirstChar = lastLine.text()[0];
+  if (lastLineFirstChar == 0 || lastLineFirstChar == '\n') {
+    deleteLastLine();
+  }
+}
+
 void ConsoleStore::push(const char marker, const char * text, size_t length) {
   // TODO: Verify that the text field does not accept texts that are bigger than
   // k_historySize, or put an alert message if the command is too big.
@@ -88,14 +97,37 @@ void ConsoleStore::deleteFirstLine() {
   if (m_history[0] == 0) {
     return;
   }
-  int indexOfSecondLineMarker = 1;
-  while (m_history[indexOfSecondLineMarker] != 0) {
-    indexOfSecondLineMarker++;
+  int secondLineMarkerIndex = 1;
+  while (m_history[secondLineMarkerIndex] != 0) {
+    secondLineMarkerIndex++;
   }
-  indexOfSecondLineMarker++;
-  for (int i=0; i<k_historySize - indexOfSecondLineMarker; i++) {
-    m_history[i] = m_history[indexOfSecondLineMarker+i];
+  secondLineMarkerIndex++;
+  for (int i=0; i<k_historySize - secondLineMarkerIndex; i++) {
+    m_history[i] = m_history[secondLineMarkerIndex+i];
   }
 }
 
+void ConsoleStore::deleteLastLine() {
+  int lineCount = numberOfLines();
+  if (lineCount < 0) {
+    return;
+  }
+  if (lineCount == 1) {
+    deleteFirstLine();
+    return;
+  }
+  int currentLineIndex = 1;
+  int lastLineMarkerIndex = 0;
+  for (int i=0; i<k_historySize; i++) {
+    if (m_history[i] == 0) {
+      currentLineIndex++;
+      if (currentLineIndex == lineCount) {
+        lastLineMarkerIndex = i+1;
+        break;
+      }
+    }
+  }
+  m_history[lastLineMarkerIndex] = 0;
+}
+
 }