PdfDocumentPage: Parse content actions

VAR.PdfTools/PdfContentAction.cs

@@ -0,0 +1,33 @@
+using System.Collections.Generic;
+
+namespace VAR.PdfTools
+{
+    public class PdfContentAction
+    {
+        #region Declarations
+
+        string _token = null;
+
+        private List<IPdfElement> _parameters = null;
+
+        #endregion
+
+        #region Properties
+
+        public string Token { get { return _token; } }
+
+        public List<IPdfElement> Parameters { get { return _parameters; } }
+
+        #endregion
+
+        #region Life cycle
+
+        public PdfContentAction(string token, List<IPdfElement> parameters)
+        {
+            _token = token;
+            _parameters = parameters;
+        }
+
+        #endregion
+    }
+}

VAR.PdfTools/PdfDocumentPage.cs

@@ -15,6 +15,8 @@ namespace VAR.PdfTools
 
         private Dictionary<string, PdfDictionary> _fonts = new Dictionary<string, PdfDictionary>();
 
+        private List<PdfContentAction> _contentActions = null;
+
         #endregion
 
         #region Properties
@@ -25,6 +27,8 @@ namespace VAR.PdfTools
         
         public Dictionary<string, PdfDictionary> Fonts { get { return _fonts; } }
 
+        public List<PdfContentAction> ContentActions { get { return _contentActions; } }
+
         #endregion
 
         #region Life cycle
@@ -38,8 +42,8 @@ namespace VAR.PdfTools
                 throw new Exception(string.Format("PdfDocumentPage: Expected dictionary of type:\"Page\". Found: {0}", type));
             }
 
+            // Get content, resources and fonts
             _content = _baseData.GetParamAsStream("Contents");
-
             if (_baseData.Values.ContainsKey("Resources") == false)
             {
                 _resources = prevDocPage._resources;
@@ -56,6 +60,16 @@ namespace VAR.PdfTools
                     _fonts.Add(pair.Key, pair.Value as PdfDictionary);
                 }
             }
+
+            // Parse content
+            if (_content != null)
+            {
+                PdfParser parser = new PdfParser(_content);
+                _contentActions = parser.ParseContent();
+            }else
+            {
+                _contentActions = new List<PdfContentAction>();
+            }
         }
 
         #endregion

VAR.PdfTools/PdfParser.cs

@@ -628,6 +628,11 @@ namespace VAR.PdfTools
                 else
                 {
                     IPdfElement obj = ParseElement();
+                    if(obj == null)
+                    {
+                        break;
+                        //throw new Exception(string.Format("ParseArray: Error parsing item at: {0}", _streamPosition));
+                    }
                     array.Values.Add(obj);
                 }
                 SkipWhitespace();
@@ -862,6 +867,29 @@ namespace VAR.PdfTools
             return streamObjects;
         }
 
+        public List<PdfContentAction> ParseContent()
+        {
+            List<PdfContentAction> actions = new List<PdfContentAction>();
+            List<IPdfElement> elems = new List<IPdfElement>();
+            do
+            {
+                SkipWhitespace();
+                IPdfElement elem = ParseElement();
+                if (elem != null)
+                {
+                    elems.Add(elem);
+                }
+                else
+                {
+                    string token = ParseToken();
+                    PdfContentAction action = new PdfContentAction(token, elems);
+                    elems = new List<IPdfElement>();
+                    actions.Add(action);
+                }
+            } while (IsEndOfStream() == false);
+            return actions;
+        }
+
         public bool IsEndOfStream()
         {
             return _streamPosition >= _stream.Length;

VAR.PdfTools/VAR.PdfTools.csproj

@@ -40,6 +40,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="PdfContentAction.cs" />
     <Compile Include="PdfDocument.cs" />
     <Compile Include="PdfDocumentPage.cs" />
     <Compile Include="PdfElements.cs" />