Issue #5937 has been updated by drbrain (Eric Hodel).


I think #5929 should be backported instead.  While #5937 makes working with custom dictionaries easier, #5929 fixes the current API (#set_dictionary) to be fully usable.
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Feature #5937: Zlib::Inflate#add_dictionary to pre-supply dictionaries for inflate streams
https://bugs.ruby-lang.org/issues/5937#change-26894

Author: drbrain (Eric Hodel)
Status: Closed
Priority: Normal
Assignee: 
Category: ext
Target version: 2.0.0


The attached patch allows Zlib::Inflate users to supply dictionaries ahead of time in order to avoid handling the Zlib::NeedDict exception.

Multiple dictionaries may be provided.  Zlib::Inflate will choose a matching dictionary based on the adler32 checksum of the provided dictionaries.


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