Be able to point to the exact loctions of attributes

src/main/java/com/ctc/wstx/sr/AttributeCollector.java

@@ -30,6 +30,7 @@
 import org.codehaus.stax2.typed.TypedValueDecoder;
 import org.codehaus.stax2.typed.TypedXMLStreamException;
 import org.codehaus.stax2.validation.XMLValidator;
+import org.codehaus.stax2.XMLStreamLocation2;
 
 import com.ctc.wstx.api.ReaderConfig;
 import com.ctc.wstx.cfg.ErrorConsts;
@@ -523,6 +524,14 @@ public final int getXmlIdAttrIndex() {
         return mXmlIdAttrIndex;
     }
 
+    public final XMLStreamLocation2 getValueLocationStart(int index) {
+        return mNamespaceBuilder.getLocation(index * 2);
+    }
+
+    public final XMLStreamLocation2 getValueLocationEnd(int index) {
+        return mNamespaceBuilder.getLocation(index * 2 + 1);
+    }
+
     /*
     //////////////////////////////////////////////////////
     // Type-safe accessors to support TypedXMLStreamReader

src/main/java/com/ctc/wstx/sr/BasicStreamReader.java

@@ -3150,7 +3150,10 @@ private final boolean handleNsAttrs(char c)
             } else {
                 tb = ac.getAttrBuilder(prefix, localName);
             }
+            tb.pushLocation(getCurrentLocation());
             parseAttrValue(c, tb);
+            tb.pushLocation(getCurrentLocation());
+
 
             /* 19-Jul-2004, TSa: Need to check that non-default namespace
              *     URI is NOT empty, as per XML namespace specs, #2,
@@ -3224,8 +3227,11 @@ private final boolean handleNonNsAttrs(char c)
             }
 
             // And then the actual value
+            tb.pushLocation(getCurrentLocation());
             parseAttrValue(c, tb);
+            tb.pushLocation(getCurrentLocation());
             // and then we need to iterate some more
+
             c = (mInputPtr < mInputEnd) ?
                 mInputBuffer[mInputPtr++] : getNextCharFromCurrent(SUFFIX_IN_ELEMENT);
         }

src/main/java/com/ctc/wstx/util/TextBuilder.java

@@ -1,5 +1,9 @@
 package com.ctc.wstx.util;
 
+import org.codehaus.stax2.XMLStreamLocation2;
+
+import java.util.ArrayList;
+
 /**
  * Class similar to {@link StringBuilder}, except that it can be used to
  * construct multiple Strings, that will share same underlying character
@@ -17,6 +21,8 @@ public final class TextBuilder
 
     private String mResultString;
 
+    private ArrayList<XMLStreamLocation2> mLocations;
+
     /*
     ///////////////////////////////////////////////////////////////////////
     // Life-cycle:
@@ -32,6 +38,7 @@ public TextBuilder(int initialSize)
             charSize = MAX_LEN;
         }
         mBuffer = new char[charSize];
+        mLocations = new ArrayList<XMLStreamLocation2>(initialSize << 1);
     }
 
     /**
@@ -40,6 +47,7 @@ public TextBuilder(int initialSize)
      */
     public void reset() {
         mBufferLen = 0;
+        mLocations.clear();
         mResultString = null;
     }
 
@@ -61,6 +69,9 @@ public String getAllValues()
         return mResultString;
     }
 
+    public void pushLocation(XMLStreamLocation2 location) {
+        mLocations.add(location);
+    }
     /**
      * Method that gives access to underlying character buffer
      */
@@ -131,4 +142,8 @@ private void resize(int needSpaceFor) {
         mBuffer = new char[oldLen+addition];
         System.arraycopy(old, 0, mBuffer, 0, mBufferLen);
     }
+
+    public XMLStreamLocation2 getLocation(int index) {
+        return mLocations.get(index);
+    }
 }