This afternoon, Tim & I struggled in vain to create an example that

would trigger the error "replace structure with attribute replacements
not yet implemented".  We were right that it needed testing --
TALError was not imported.

Fixing this in TALInterpreter.py, and adding code to TALGenerator.py
that passes the "repldict" variable from emitStartElement() to
emitEndElement(), through the "todo" variable, when a "replace"
command is present.

lib/python/TAL/TALGenerator.py

@@ -377,6 +377,9 @@ class TALGenerator:
             repldict = parseAttributeReplacements(attrsubst)
         else:
             repldict = {}
+        if replace:
+            todo["repldict"] = repldict
+            repldict = {}
         self.emitStartTag(name, self.replaceAttrs(attrlist, repldict))
         if content:
             self.pushProgram()
@@ -398,7 +401,8 @@ class TALGenerator:
             self.emit("endScope")
         replace = todo.get("replace")
         if replace:
-            self.emitSubstitution(replace)
+            repldict = todo.get("repldict", {})
+            self.emitSubstitution(replace, repldict)
         condition = todo.get("condition")
         if condition:
             self.emitCondition(condition)

lib/python/TAL/TALInterpreter.py

@@ -92,7 +92,7 @@ import getopt
 import cgi
 
 from XMLParser import XMLParser
-from TALDefs import quote
+from TALDefs import TALError, quote
 
 BOOLEAN_HTML_ATTRS = [
     # List of Boolean attributes in HTML that should be rendered in