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function [posns] = strmatch_multi(keys, strs)
% STRMATCH_MULTI Find where each key occurs in list of strings.
% [pos] = strmatch_multi(key, strs) where key is a string and strs is a cell array of strings
% works like the built-in command sequence pos = strmatch(key, strs, 'exact'),
% except that pos is the first occurrence of key in strs; if there is no occurence, pos is 0.
%
% [posns] = strmatch_multi(keys, strs), where keys is a cell array of strings,
% matches each element of keys. It loops over whichever is shorter, keys or strs.
if ~iscell(keys), keys = {keys}; end
nkeys = length(keys);
posns = zeros(1, nkeys);
if length(keys) < length(strs)
for i=1:nkeys
%pos = strmatch(keys{i}, strs, 'exact');
ndx = strcmp(keys{i}, strs); % faster
pos = find(ndx);
if ~isempty(pos)
posns(i) = pos(1);
end
end
else
for s=1:length(strs)
%ndx = strmatch(strs{s}, keys, 'exact');
ndx = strcmp(strs{s}, keys);
ndx = find(ndx);
posns(ndx) = s;
end
end
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