Many developers need to perform simple transformations on legacy BibTeX files:
- they don't need to convert the data to another intermediate format
- they want to keep their file exactly as it was (use of @string, comments, special fields)
This is in conflict with the notion of schema, and with some limitations of the data model of pyblio 1.3. But as these users don't want the advanced features, it would be possible to provide a hook into the BibTeX parser so that they can perform these operations easily.
(example API to be defined)