Filter text ignoring case

[ARandomPerson07]

Feature Request

When using the filter_by_text_contains or filter_by_text_equals, it would be nice to be able to have a parameter ignore_case which allows for caseless matching.

For example, currently filtering by "CONTENT" and "Content" returns two different sets of elements.

When processing less uniform PDFs, hard-coding the correct case is difficult (most commonly, such headers are either in sentence case or all-caps), and currently the workaround I am using is to chain together or logic with multiple versions of the string:

But this seems like a much more inefficient way of going about it than being able to directly access the element texts and using casefold() to match them.

[ARandomPerson07]

I've edited the filtering.py file on my local machine adding the functionality, seems to work as expected. Might send in a tiny pull request soon.

[jstockwin]

Hi @ARandomPerson07,

I agree that this sounds like useful functionality - please do go ahead and submit a PR and I'd be happy to review.

I'd note you can also achieve this functionality with filter_by_regex (docs), to which you can pass the re.IGNORECASE flag.

I believe something like filter_by_regex("contents", regex_flags=re.IGNORECASE) should achieve what you're looking for (although I've not tested it).

Still happy to accept a PR on this, though.