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WIP: Skip searching when a document is empty

Hrvoje Zlatar requested to merge patko/pdfgrep:master into master

PDFgrep searches text in documents even when they are empty (state.document_empty == true). When you search for an empty string in such a document, PDFgrep will "find" it returning 0 and total count > 0.

Why is this a problem? I am using PDFgrep to detect if a document contains text or not. I run pdfgrep --warn-empty -m 1 -c '' *.pdf on a set of files.

Edited by Hrvoje Zlatar

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