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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 2002-2004 - INRIA - Vincent COUVERT
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
function [tree]=sci_find(tree)
// M2SCI function
// Conversion function for Matlab find()
// Input: tree = Matlab funcall tree
// Ouput: tree = Scilab equivalent for tree
// Emulation function: mtlb_find()
x = getrhs(tree)
// Because %c_find is not defined
x = convert2double(x)
tree.rhs=Rhs_tlist(x)
// k = find(x)
if lhs==1 then
if is_complex(x) then
x = Funcall("abs",1,list(x),list(Variable("",x.infer)))
elseif ~is_real(x) then
newx = Funcall("abs",1,list(x),list(Variable("",x.infer)))
repl_poss(newx,x,x,gettext("is Real."));
x=newx
end
tree.rhs=Rhs_tlist(x)
tree1=Operation("''",list(tree),tree.lhs)
tree2=Funcall("matrix",1,Rhs_tlist(tree,-1,1),tree.lhs)
tree.lhs(1).type=Type(Double,Real)
if x.dims(1)==1 then // Row vector
tree.lhs(1).dims=list(1,Unknown)
elseif x.dims(2)==1 then // Column vector
tree=tree1
tree.out(1).dims=list(Unknown,1)
tree.out(1).type=Type(Double,Real)
elseif not_a_vector(x) then
tree=tree2
tree.lhs(1).dims=list(Unknown,Unknown)
else
tree.name="mtlb_find"
tree.lhs(1).dims=list(Unknown,Unknown)
end
// [i,j] = find(x)
elseif lhs==2 then
if is_complex(x) then
x = Funcall("abs",1,list(x),list(Variable("",x.infer)))
elseif ~is_real(x) then
newx = Funcall("abs",1,list(x),list(Variable("",x.infer)))
repl_poss(newx,x,x,gettext("is Real."));
x=newx
end
tree.rhs=Rhs_tlist(x)
tree.lhs(1).type=Type(Double,Real)
tree.lhs(2).type=Type(Double,Real)
if x.dims(1)==1 then // Row Vector
tree.lhs(1).dims=list(1,Unknown)
tree.lhs(2).dims=list(1,Unknown)
else
tree.name="mtlb_find"
tree.lhs(1).dims=list(Unknown,Unknown)
tree.lhs(2).dims=list(Unknown,Unknown)
end
// [i,j,v] = find(x)
else
tree.name="mtlb_find"
tree.lhs(1).dims=list(Unknown,Unknown)
tree.lhs(2).dims=list(Unknown,Unknown)
tree.lhs(3).dims=list(Unknown,Unknown)
tree.lhs(1).type=Type(Double,Real)
tree.lhs(2).type=Type(Double,Real)
tree.lhs(3).type=Type(Unknown,Unknown)
end
endfunction
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