--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/reportlab/lib/abag.py	Wed Sep 03 16:10:51 2008 +0000
@@ -0,0 +1,43 @@
+#Copyright ReportLab Europe Ltd. 2000-2004
+#see license.txt for license details
+#history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/lib/abag.py
+__version__=''' $Id$ '''
+
+class ABag:
+    """
+    'Attribute Bag' - a trivial BAG class for holding attributes.
+
+    You may initialize with keyword arguments.
+    a = ABag(k0=v0,....,kx=vx,....) ==> getattr(a,'kx')==vx
+
+    c = a.clone(ak0=av0,.....) copy with optional additional attributes.
+    """
+    def __init__(self,**attr):
+        self.__dict__.update(attr)
+
+    def clone(self,**attr):
+        n = ABag(**self.__dict__)
+        if attr: n.__dict__.update(attr)
+        return n
+
+    def __repr__(self):
+        import string
+        n = self.__class__.__name__
+        L = [n+"("]
+        keys = self.__dict__.keys()
+        for k in keys:
+            v = getattr(self, k)
+            rk = repr(k)
+            rv = repr(v)
+            rk = "  "+string.replace(rk, "\n", "\n  ")
+            rv = "    "+string.replace(rv, "\n", "\n    ")
+            L.append(rk)
+            L.append(rv)
+        L.append(") #"+n)
+        return string.join(L, "\n")
+
+if __name__=="__main__":
+    AB = ABag(a=1, c="hello")
+    CD = AB.clone()
+    print AB
+    print CD