digraph X { 
  hello  ->  world;
}

digraph X { 
  node[shape=box]
  dot  -> "dot.exe"   -> "epstopdf.exe" -> "pdflatex.exe(1)"
  txt  -> "mkTex.exe" -> "pdflatex.exe(1)";
  "pdflatex.exe(1)" -> "makeindex.exe" -> "pdflatex.exe(2)";
  "pdflatex.exe(1)" -> "bibtex.exe" -> "pdflatex.exe(2)";
  "pdflatex.exe(2)" -> "pdflatex.exe(3)" -> pdf ;
   dot [shape=plaintext, label="mkDoc.dot"  ];
   txt [shape=plaintext, label="bibTest.txt"];
   pdf [shape=plaintext, label="bibTest.pdf"];
}

#
#     classParent: classChild +> to make dot graph
#
                            # 1) begin of graph
1i\
digraph X { \
  rankdir=LR;\
  node[shape=box]\

                            # 2) make  next arc
s/\([^ :]*\):[ 	]*\(\w\w*\).*/ "\2" -> "\1"/p

                            # 3) end of graph
$a\
}

#                  1)     delete multiline comment 
/\/\*/,/\*\//d
#                  2)     delete : and , 
/:/d
/,/d

#                  3)     between class and { 
/\bclass\b/,/{/{
                          # class
                          # name1
                          # name2
                          # ...
                          # {    ------ or
                          # class
                          # name1
                          # {
                          # if class name1 +> remember  name1
  /\bclass\b/,/\b\w\w*\b/{
                         #   1) delete class
    /\bclass\b/d
                         #   2) save class- child
    /\b\w\w*\b/h
                         #   3) delete all the lines
    d
  }
  /{/d

                         #   4) restore name1

  G
                         #   5)  2 lines +> 1 line
  s/\n/:	/
                         #   6) print pair (parent, child)
  p
}

#  #            #   1)  delete single line comment
s/\/\/.*// 
                #   2)  put myltiline comment to multi line
s/\/\*/\
&\
/g
s/\*\//\
&\
/g
                #  3)  surround different lexemas (:,{) with  new line
s/[:,{]/\
&\
/g

               #   4)  map blanks to new line
s/[ 	][ 	]*/\
/g
p

SET GOAL=hrrchy


SET F=lib
sed -nf newline.sed %F%.cs  >.%F%.cs. 1 
grep . <.%F%.cs. 1   >.%F%.cs. 2 
sed -nf mkPair.sed <.%F%.cs. 2      >.%F%.cl

SET F=main
sed -nf newline.sed %F%.cs | grep . |  sed -nf mkPair.sed >.%F%.cl


cat *.cl |  sort_ -u >.prg_cls_hrr.l

sed -nf mkDot.sed <.prg_cls_hrr.l  >%GOAL%.dot
dot -Tpng %GOAL%.dot -o%GOAL%.png

start                  %GOAL%.png

/** \file  
    \brief файл с библиотекой
*/
using System;
using System.IO;   // foo
namespace adm_w{
 class a{
   static public void    wrLn (   string s   ) {        /// \callgraph
        Console.WriteLine (s);
   }
 }
 class b: a,
  /* multiple inheritance */ IComparer   {     int dummy;  }
 class c2
        : b   {     int dummy2; }
 class d2:
         app {     int dummy;  }
 class   // last class
      e : d2  {
    public int dummy;
    public d   foo;
 }
}