mò )á¸Ec@sKdZdklZlZlZdklZd„Zd„Zd„Z dS(sCSetOps -- Weighted intersections and unions applied to many inputs.(sIIBucketsweightedIntersections weightedUnion(sNBestcCsàg}|D]*\}}|dj o|||fq q ~}t|ƒdjot|ƒSn|id„ƒ|d \\}}\}}t ||||ƒ\}}x3|dD]'\}}t ||d|ƒ\}}q±W|S(sIA list of (mapping, weight) pairs -> their weightedIntersection IIBucket.icCs!tt|dƒt|dƒƒS(Ni(tcmptlentxty(RR((t:/data/zmath/zope/lib/python/Products/ZCTextIndex/SetOps.pytsiN( t_[1]tLRtwxtNoneRt_trivialtsortRtwytweightedIntersectiontdummytresult(RRRRRRR R((Rtmass_weightedIntersections> c Cst|ƒdjot|ƒSntt|ƒƒ}x0|D](\}}|i||ft|ƒƒq:Wxt|ƒdjok|iƒ\\}} }|iƒ\\}}}t ||| |ƒ\}}|i|dft|ƒƒqiW|iƒ\\}}}|S(sBA list of (mapping, weight) pairs -> their weightedUnion IIBucket.iiN(RRR tNBesttmergeRtweighttaddt pop_smallestRRRR t weightedUniontzR( RRRRRRRRR R((Rtmass_weightedUnion$s  !cCszt|ƒdjpt‚t|ƒdjo tƒSn|\\}}|djo"ttƒ|d|ƒ\}}n|S(Nii(RRtAssertionErrortIIBucketRRRR(RRRR((RR 5s  "N( t__doc__tBTrees.IIBTreeRR RtProducts.ZCTextIndex.NBestRRRR (R R RRRRR((Rt?s