How to draw ascii chart [closed]

Question

Possible Duplicate:
Are there programs that convert PowerPoint block diagrams to ASCII text diagrams?

What kind of tools could we use to draw the following ascii chart conveniently?

           |     arg            |
           |   saved %eip       |
           |   saved %ebp       |
  ebp  --> +--------------------+
           |        a           |
           |        c           | f's stack frame
           +--------------------+--------------------------\
           |        b           | shared stack frame       |
           +--------------------+                    frame created for nested
           |       arg'         | copied arguments         |
  ecx  --> +--------------------+--------------------------/

Thanks!

Answer 1

I used to use Email Effects, but there's also JavE, ASCII Art Studio (Win only)...

Answer 2

have you seen ditaa ?
http://ditaa.sourceforge.net/
there are some add-ons that produce eps.