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Add PropertyBitmaps: bisc and auto_bisc keep their input as bitmaps, or as indices where few are good - #209

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bisc-labelled-perms

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Add PropertyBitmaps: bisc and auto_bisc keep their input as bitmaps, or as indices where few are good#209
ulfarsson wants to merge 38 commits into
developfrom
bisc-labelled-perms

Commits on Oct 18, 2026
- Add LabelledPerms: auto_bisc input with labels kept as bitmaps
  
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- Test auto_bisc's growth past the labelled lengths with LabelledPerms
  
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- Export LabelledPerms from permuta.bisc and document it in the README
  
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- Define LabelledPerms' bit order by Perm.unrank
  
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Commits on Oct 21, 2026
- Name LabelledPerms' variables by what they hold
  
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Commits on Oct 22, 2026
- Make LabelledPerms and its tests easier to read
  
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- Reject malformed bitmaps in LabelledPerms
  
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- Test the labels option and LabelledPerms given a property and bitmaps
  
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- bisc labels what a LabelledPerms lacks, and labels="bitmaps" needs a property
  
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- Test how bisc treats a LabelledPerms, and label up to max(m, n)
  
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- Correct the memory figures in the docs
  
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- Docstrings, messages and edge-case tests for LabelledPerms
  
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Commits on Oct 23, 2026
- Rename LabelledPerms to PropertyBitmaps
  
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- Plainer code where Henning stopped in PropertyBitmaps.__init__
  
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- Make the views a Mapping of Collections
  
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- Type bisc.py and let mypy check it
  
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- Name the bit operations
  
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- Turn every input of bisc and auto_bisc into a PropertyBitmaps
  
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- Read a length with few wanted permutations by unranking them
  
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- Test how bisc and auto_bisc take each kind of input
  
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- Correct what the texts say a tuple and a property do
  
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- Stop auto_bisc when a tuple's bad permutations stop short
  
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- Let in take any sequence that is a permutation of the length
  
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- Readability points from the review of round 4
  
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Commits on Oct 24, 2026
- Keep a length with few good permutations as the indices of those
  
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- Test both forms in which a length's labels are kept
  
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- Keep the indices of a length past 20 in a list
  
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- Label a length in add_length with a bit per good permutation once its indices are many
  
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- Keep a dense length's bitmap as bytes, so that reading it copies nothing
  
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- Test the gaps the review of round 6 found in the two forms' tests
  
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- Readability and repetition points from the review of round 6
  
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- Iterate a view through one small generator for each form
  
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- Tell the two forms apart in the tests by each length's container
  
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- Refuse a listed sequence that is not a permutation by its values
  
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- Count a view's permutations without len(), so that past length 20 they iterate
  
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  b14d825
- Test the gaps the review of round 7 found in the two forms' tests
  
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- Readability points from the review of round 7
  
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Commits on Oct 25, 2026
- Keep the README's BiSC paragraph short
  
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Commits

Commits on Oct 18, 2026

Commits on Oct 21, 2026

Commits on Oct 22, 2026

Commits on Oct 23, 2026

Commits on Oct 24, 2026

Commits on Oct 25, 2026