KVF -- Key Value File to Latex Lookuptable File in Matlab

example.m

kvffile = 'output/example.kvf';
texfile = 'output/example.tex';
diary(kvffile);

disp(['value1 = ' num2str(value1)]);
disp(['value2 = ' num2str(value2)]);
disp(['value3 = ' num2str(value3)]);

diary off;
fclose('all');
kvf2tex(kvffile, texfile, 'example'); % to latex
delete(kvffile);

kvf2tex.m

function kvf2tex(fin, fout, rootkey)

    if nargin > 2
       rootkey = [rootkey '.'];
    else
        rootkey = '';
    end

    TEMPLATE = '\\@lookupPut{%s}{%s}\n';
    hfin = fopen(fin, 'r');
    hfout = fopen(fout, 'w+');
    
    data = textscan(hfin, '%s = %s');
    
    keys = data{1,1};
    values = data{1,2};
    
    fprintf(hfout, '\\makeatletter\n');
    for i = 1:length(keys)
       fprintf(hfout, TEMPLATE,...
           [rootkey cell2mat(keys(i))], cell2mat(values(i)));
    end
    fprintf(hfout, '\\makeatother\n');
    
    fclose(hfin);
    fclose(hfout);
end

lookup.tex

\makeatletter
\newcommand{\get}[1]{%
  \@ifundefined{lookup@#1}{%  
    \PackageError{lookup}{No #1 key in lookup}{%
      Key #1 was not found in lookup. %
      You can insert it with \string\lookupPut{key}{value}.%
    }%
  }{%
    \@nameuse{lookup@#1}%
  }%
}
\newcommand{\@lookupPut}[2]{%
  \@namedef{lookup@#1}{#2}%
}
\makeatother

\newcommand{\applysignrule}[1]{%
\StrSubstitute{#1}{+-}{-}%
}

%% Usage: \get{example.value1}