function args_out = subs_arg(args,Args, ...
default,full_name,comp_type,comp_name,fileID)
% subs_arg - substitutes arguments into args from Args
% FS defaults to `;'.
%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%%%% Model Transformation Tools %%%%%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Matlab function subs_arg.m
% args_out = subs_arg(args,Args,default,comp_type,comp_name,infofile)
% Copyright (c) P.J. Gawthrop, 1996.
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.7 2001/07/03 22:59:10 gawthrop
% %% Fixed problems with argument passing for CRs
% %%
% %% Revision 1.6 1998/07/27 09:53:44 peterg
% %% No change
% %%
% %% Revision 1.5 1998/07/21 16:43:26 peterg
% %% Now writes to an explicit fileID - otherwise we may run out of IDs.
% %%
% %% Revision 1.4 1996/12/10 16:04:11 peterg
% %% Changed file handling on mtt_info.
% %%
% %% Revision 1.3 1996/12/07 18:19:39 peterg
% %% Replaces null argument by a default and tells user.
% %%
% %% Revision 1.2 1996/12/04 21:47:41 peterg
% %% Skips main loop when arg is null.
% %%
% %% Revision 1.1 1996/12/04 21:46:52 peterg
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Symbolic argument sign
S = '$';
args_out = '';
if strcmp(args,'')==0
L = length(args);
args_count = 1;
num_count=0;
while args_count <= L
ch = str2ch(args,args_count);
if ch~=S % copy character
args_out = [args_out, ch];
args_count = args_count+1;
else % find argument number
args_count = args_count+1;
ch = str2ch(args,args_count);
## Modification for $p1 $a1 etc
if !((ch>='0') & (ch<='9')) # It's not numerical - so loose it
args_count = args_count+1;
ch = str2ch(args,args_count);
endif
i=0;
while (ch>='0') & (ch<='9')
i = 10*i + abs(ch)-abs('0');
if args_count==L
args_count = args_count+1;
break
end;
args_count = args_count+1;
ch = str2ch(args,args_count);
end;
arg_out = args2arg(Args,i);
% Test for empty argument -- replace by default and tell user
message = 'Argument %1.0f of component %s(%s) of system %s is undefined - \n replacing by %s';
if strcmp(arg_out,'')
info = sprintf(message, ...
i, comp_name, comp_type, full_name, default);
arg_out = default;
else
info = sprintf("Replacing $%i \t by %s for component %s (%s) ...
within %s", i, arg_out, comp_name, comp_type, full_name);
end;
mtt_info(info,fileID);
args_out = [args_out, arg_out];
end;
end;
end;