Created on 2009-01-15 22:34 by exarkun, last changed 2009-01-17 15:42 by exarkun.
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| File name | Uploaded | Description | Edit | |
| entity-skipped-in-attribute-value.py | exarkun, 2009-01-15 22:34 | |||
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| msg79920 - (view) | Author: Jean-Paul Calderone (exarkun) *  |
Date: 2009-01-15 22:34 | |
The attached program demonstrates that the ContentHandler.skippedEntity callback is not invoked for all skipped entities. Specifically, it is not invoked for those in attribute values. Additionally, it demonstrates that when parsing a document with no DOCTYPE, skippedEntity is not called at all; instead the parser raises an exception about an "undefined entity". |
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| msg79960 - (view) | Author: Jean-Paul Calderone (exarkun) * |
Date: 2009-01-16 16:39 | |
After further investigation, I've learned a bit more. External entities are forbidden in attribute values. Their presence constitutes a "fatal error" according to <http://www.w3.org/TR/REC-xml/#forbidden>. This means that dropping entities in an attribute value is incorrect. Instead the fatal error hook must be called. |
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| msg80006 - (view) | Author: Terry J. Reedy (terry.reedy) * |
Date: 2009-01-17 08:00 | |
Neither the title nor your two posts identify the module you think needs to be changed. Changing the title to include that might better get attention from someone who is familiar with that module and could deal with the request. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2009-01-17 15:42:31 | exarkun | set | title: inconsistent, perhaps incorrect, behavior with respect to entities parsed by xml.sax -> xml.sax.expatreader.ExpatParser incorrectly silently skips external character entities in attribute values |
| 2009-01-17 08:00:43 | terry.reedy | set | nosy:
+ terry.reedy messages: + msg80006 |
| 2009-01-16 16:39:41 | exarkun | set | messages: + msg79960 |
| 2009-01-15 22:34:30 | exarkun | create | |