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After the preparatory introduction of LineBufferedReader, it is now possible to introduce registration of fallback decoders that won't drop input supplied in the first line of the file. A fallback decoder is used when the magic in the first line of the file does not match any of the other known decoders. In such a case, the fallback decoder is constructed and provided a LineBufferedReader instance. The process of matching magic only peeks the first non-empty line, so it is available for re-reading in Decode() using ReadLine(). There can be only one fallback decoder per type; a second attempt of registering a fallback will result in an exception to avoid bugs. To address the issue of parsing failing on badly or non-headered files, set the legacy decoders for Beatmaps and Storyboards as the fallbacks. Due to non-trivial logic, several new, passing unit tests with possible edge cases also included.
6 lines
104 B
Plaintext
6 lines
104 B
Plaintext
ow computerosu file format v14
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[Metadata]
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Title: Beatmap with corrupted header
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Creator: Evil Hacker
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