Thread: S&R RegEx Functions Custom Columns
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Old 01-09-2022, 06:47 AM   #5
davidfor
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If you mean the OPF file in the directory with the book, then that is maintained by calibre. And is really just a backup. If you want that data, then it will be in a column in the the library. You can access that from code much easier than attempting to read the OPF file directly. It will be accessible from a template using the lookup name. Or from plugin code.

If this is related to the original question, then you should be able to do it from a template. But, if you are doing something else, we need to know what.
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