How can I print line numbers when I use the PUBLISH command in MATLAB?

I want line numbers printed next to each line of my function when I publish functions using the PUBLISH command.

I would like to see something like

 

 001 function y = MyFunc(x)
 002 y = x.^2;
 003 end

Answer 1

[MathWorks Support Team]

Use the dbtype function for this purpose:

>>doc dbtype

You can achieve the same thing using code such as the following:

 

function mypublish(filename) 
% A Custom publish function that includes the line
% number for each line in the function  
% Usage: mypublish('myfun.m')

function_options.format='html'
function_options.evalCode=false;
function_options.showCode=true;

copyfile(filename, 'mytemp.m')
fid1 = fopen(filename);
fid2 = fopen('mytemp.m', 'w');
i=1;
while 1

      tline = fgetl(fid1);
      if ~ischar(tline)
          break;
      end
      if ~isempty(tline)
      tline = [num2str(i),' ', tline];
      fprintf(fid2,'%s',tline);
      fprintf(fid2,'%s\n','');
      i = i + 1;
      end
  end
  fclose(fid1);
  fclose(fid2);
  publish(filename, function_options); % publish original function without line numbers
  publish('mytemp',function_options); % publish temp function with line numbers
  delete('mytemp.m');  % delete temp M -file

Note that the second approach would give you more flexibility if you wanted to display more than the line number.