Interfacing function
eng

##
WFILE_f

### File content

    function [x,y,typ]=WFILE_f(job,arg1,arg2)
    // Copyright INRIA
    x=[];y=[];typ=[]
    select job
    case 'plot' then
      standard_draw(arg1)
    case 'getinputs' then
      [x,y,typ]=standard_inputs(arg1)
    case 'getoutputs' then
      x=[];y=[];typ=[];
    case 'getorigin' then
      [x,y]=standard_origin(arg1)
    case 'set' then
      x=arg1;
      graphics=arg1.graphics;exprs=graphics.exprs
      model=arg1.model;
      dstate=model.dstate
      lunit=dstate(2)
      fname=exprs(2)
      frmt=exprs(3)
      while %t do
        [ok,in,fname1,frmt1,N,exprs]=getvalue(..
    	'Set WFILE block parameters',..
    	['Input size';
    	'Output file name';
    	'Output Format';
    	'Buffer size'],..
    	 list('vec',1,'str',1,'str',1,'vec',1),exprs)
        if ~ok then break,end //user cancel modification
        in=int(in)
        nin=in

        fname1=stripblanks(fname1)
        frmt1=stripblanks(frmt1)
        mess=[]
        if lunit>0&min(length(frmt),1)<>min(length(frmt1),1) then
          mess=[mess;'You cannot swich from formatted to unformatted';
    	         'or  from unformatted to formatted when running';' ']
        end
        if lunit>0&fname1<>fname then
          mess=[mess;'You cannot modify Output file name when running';' ']
          ok=%f
        end
        if N<2 then
          mess=[mess;'Buffer size must be at least 2';' ']
          ok=%f
        end
        if in<=0 then
          mess=[mess;'Block must have at least one input';' ']
          ok=%f
        end
        if ~ok then
          message(['Some specified values are inconsistent:';
    	         ' ';mess])
        end

        if ok then
          ipar=[length(fname1);length(frmt1);0;N;str2code(fname1);str2code(frmt1)]
          if prod(size(dstate))<>(nin+1)*N+2 then
    	dstate=[-1;lunit;zeros((nin+1)*N,1)]
          end
          model.in=nin
          model.dstate=dstate;model.ipar=ipar
          model.dep_ut=[%t %f] //compatibility
          graphics.exprs=exprs;
          x.graphics=graphics;x.model=model
          break
        end
      end
    case 'define' then
      in=1;nin=sum(in)
      frmt='(7(e10.3,1x))'
      fname='foo'
      lunit=0
      N=2;

      model=scicos_model()
      model.sim='writef'
      model.in=in
      model.evtin=1
      model.dstate=[-1;lunit;zeros((nin+1)*N,1)]
      model.ipar=[length(fname);length(frmt);0;N;str2code(fname);str2code(frmt)]
      model.blocktype='d'
      model.dep_ut=[%t %f]

      exprs=[sci2exp(in);
    	fname;
    	frmt;
    	string(N)]
      gr_i=['txt=[''write to'';''output file''];';
        'xstringb(orig(1),orig(2),txt,sz(1),sz(2),''fill'')']
      x=standard_define([3 2],model,exprs,gr_i)
    end
    endfunction