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annotate toolboxes/FullBNT-1.0.7/KPMtools/hash_del.m @ 0:e9a9cd732c1e tip

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first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 function ndx = hash_del(key, fname)
wolffd@0 2 % HASH_DEL Remove all entries that match key from hashtable stored in a file
wolffd@0 3 % ndx = hash_del(key, fname)
wolffd@0 4 %
wolffd@0 5 % Returns indices of matching entries (if any)
wolffd@0 6 % See hash_lookup for an example
wolffd@0 7
wolffd@0 8 ndx = [];
wolffd@0 9
wolffd@0 10 if ~exist(fname, 'file')
wolffd@0 11 % new hashtable - no op
wolffd@0 12 else
wolffd@0 13 %hashtable = importdata(fname);
wolffd@0 14 %hashtable = load(fname, '-mat');
wolffd@0 15 load(fname, '-mat');
wolffd@0 16 Nentries = length(hashtable.key);
wolffd@0 17 for i=1:Nentries
wolffd@0 18 if isequal(hashtable.key{i}, key)
wolffd@0 19 ndx = [ndx i];
wolffd@0 20 end
wolffd@0 21 end
wolffd@0 22 hashtable.key(ndx) = [];
wolffd@0 23 hashtable.value(ndx) = [];
wolffd@0 24 save(fname, 'hashtable', '-mat');
wolffd@0 25 end
wolffd@0 26