fix: skip empty/blank tags to prevent regex hang #39
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Empty tags like :"" create regex patterns that cause catastrophic backtracking and 100% CPU usage. Skip them with a guard clause. Fixes #16
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Summary
:""would create patterns like<(rss:|atom:)?(.*?)>causing 100% CPU and process hangTest plan
test/base/empty_tag_test.rbwith 3 tests for empty/blank tagsFixes #16