tf_builder_gui.m

% takes text from textbox in Nelly GUI, interprets, and exports the proper
% structure for the input into nelly_main
%
% Arguments:    input    -- takes input of formatted text from GUI textbox.
%               gen_func -- boolean to indicate generation of transfer
%                           functions in the structure. true to run
%                           nelly_main, false for saving new input file.
% Output:       out      -- output structure using the correct format.

%% Nelly GUI Transfer Function Builder
% Jacob A. Spies
% 25 Aug 2020

function out = tf_builder_gui(input,gen_func)
    out = struct([]);
    for i = 1:length(input(:,1))
        temp = char(input(i,1));
        len = length(temp);
        comma = find(temp == ',');
        equal = find(temp == '=');
        out(i,1).name = temp(1:comma(1)-1);
        out(i,1).d = str2num(temp(equal(1)+1:comma(2)-1));
        if ~isempty(str2num(temp(equal(2)+1:len)))
            out(i,1).n = str2num(temp(equal(2)+1:len));
        else
            out(i,1).n = temp(equal(2)+1:len);
        end
    end
    % Boolean control of generating transfer functions
    if gen_func
        out = generate_n_funcs(out);
    end
end