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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 [boolval,index]=isdefinedvar(var)
// Verify if variable is defined in varslist
// Input:
// - var: a M2SCI tlist (funcall, operation...) or a character string (name) for special variables
// Special variables i, j, pi, eps, nargin, nargout
// Output:
// - boolval:
// %T if input tlist is a defined 'variable' (already found while converting M-file)
// %F if input is not a 'variable' or an uknown 'variable'
// Global variable for M2SCI
global("varslist")
// level is declared in m2sci.sci and modified in clause2sci.sci
level;
boolval=%F
index=[]
// If input is a string
if type(var)==10 then
if and(var<>["i","j","pi","eps","%nargin","%nargout"]) then
warning(msprintf(gettext("Bad use of isdefinedvar() with input: %s."),var))
return
end
varname=var
else
// If input is not a 'variable', it can be a defined variable...
if typeof(var)=="variable" then
varname=var.name
elseif typeof(var)=="m2scivar" then
varname=var.matname
else
return
end
end
// Compare with all existing variables varslist
levelsize=size(level,1)
i=0
while i<levelsize & boolval==%F
for k=1:size(varslist)
// Search a variable which has the same name
if varslist(k).matname==varname then
// Search a variable which is in the same level or in an inferior level
if varslist(k).level==level(1:levelsize-i) then
boolval=%T
index=k
return
end
end
end
i=i+1
end
endfunction
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