* Added class GthumbCommentParser for parsing .comment/*xml files

created by gThumb.

src/utils/gthumb.py

@@ -0,0 +1,54 @@
+from xml.dom.minidom import Node
+from xml.dom import minidom
+import gzip
+import os
+from datetime import date
+
+class GthumbCommentParser(object):
+    def __init__(self, image_path, image_filename):
+        self.path = image_path
+        self.filename = image_filename
+        
+    def parse(self):
+        """Return dictionary with apropriate fields, or None if no comment
+        available"""
+        try:
+            gf = gzip.open(os.path.join(self.path,
+                                        '.comments', self.filename + '.xml'))
+        except:
+            return None
+            
+        try:
+            xml = gf.read()
+            gf.close()
+        except:
+            gf.close()
+            return None
+            
+        if not xml:
+            return None
+
+        retval = {}
+        doc = minidom.parseString(xml)
+        
+        try:
+            retval['note'] = doc.getElementsByTagName('Note').item(0).childNodes.item(0).data
+        except: retval['note'] = None
+            
+        try:
+            retval['place'] = doc.getElementsByTagName('Place').item(0).childNodes.item(0).data
+        except: retval['place'] = None
+        
+        try:
+            d = doc.getElementsByTagName('Time').item(0).childNodes.item(0).data
+            if int(d) > 0: retval['date'] = date.fromtimestamp(int(d))
+            else: retval['date'] = None
+        except: retval['date'] = None
+        
+        try:
+            retval['keywords'] = doc.getElementsByTagName('Keywords').item(0).childNodes.item(0).data.split(',')
+        except: pass
+        
+        if len(retval) > 0: return retval
+        else: return None
+