Annotation of gforth/ec/nesting.fs, revision 1.4

1.1       pazsan      1: \ nesting.fs displays nesting for primitive trace      12jun97jaw
                      2: 
1.4     ! anton       3: \ Copyright (C) 1998,2000 Free Software Foundation, Inc.
1.2       anton       4: 
                      5: \ This file is part of Gforth.
                      6: 
                      7: \ Gforth is free software; you can redistribute it and/or
                      8: \ modify it under the terms of the GNU General Public License
                      9: \ as published by the Free Software Foundation; either version 2
                     10: \ of the License, or (at your option) any later version.
                     11: 
                     12: \ This program is distributed in the hope that it will be useful,
                     13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15: \ GNU General Public License for more details.
                     16: 
                     17: \ You should have received a copy of the GNU General Public License
                     18: \ along with this program; if not, write to the Free Software
1.3       anton      19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.2       anton      20: 
1.1       pazsan     21: Variable nestlevel
                     22: 
                     23: : main
                     24:   cr
                     25:   0 nestlevel !
                     26:   BEGIN
                     27:        key dup 9 u> WHILE
                     28:        dup
                     29:        CASE    ': OF   cr nestlevel @ spaces 1 nestlevel +! emit ENDOF
                     30:                '; OF   cr -1 nestlevel +! nestlevel @ spaces emit 
                     31:                        cr nestlevel @ spaces ENDOF
                     32:                dup OF  dup 31 u> IF emit THEN ENDOF
                     33:        ENDCASE
                     34:   REPEAT drop bye ;    

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