File:  [gforth] / gforth / smartdots.fs
Revision 1.8: download - view: text, annotated - select for diffs
Tue Mar 27 23:17:52 2012 UTC (7 years, 6 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Added variables to smartdots.fs

    1: \ smart .s                                             09mar2012py
    2: 
    3: \ Copyright (C) 2012 Free Software Foundation, Inc.
    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 3
   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, see http://www.gnu.org/licenses/.
   19: 
   20: \ idea: Gerald Wodni
   21: 
   22: : addr? ( addr -- flag )
   23:     TRY  c@  IFERROR  2drop  false nothrow  ELSE  drop  true  THEN   ENDTRY ;
   24: : .var? ( addr -- flag )
   25:     TRY  body> @ dovar: <> throw  IFERROR  2drop false nothrow
   26: 	ELSE  true  THEN   ENDTRY ;
   27: 
   28: : string? ( addr u -- flag )
   29:     TRY  dup #80 u> throw  bounds ?DO  I c@ bl < IF  -1 throw  THEN  LOOP
   30: 	IFERROR  2drop drop false nothrow ELSE  true  THEN  ENDTRY ;
   31: 
   32: : .string. ( addr u -- )
   33:     .\" s\" " type '"' emit space ;
   34: : .addr. ( addr -- )
   35:     dup >name dup IF  ." ' " .name drop  ELSE  drop hex.  THEN ;
   36: : .var. ( addr -- )
   37:     dup body> >name dup IF  .name drop  ELSE  drop hex.  THEN ;
   38: 
   39: Variable smart.s-skip
   40: 
   41: : smart.s. ( n -- )
   42:     smart.s-skip @  smart.s-skip off IF  drop  EXIT  THEN
   43:     over r> i swap >r - \ we access the .s loop counter
   44:     dup 1 = IF  false  ELSE  pick  2dup string?  THEN  IF
   45: 	.string. smart.s-skip on
   46:     ELSE  drop dup addr? IF  dup .var? IF  .var.  ELSE  .addr.  THEN
   47: 	ELSE  .  THEN
   48:     THEN ;
   49: 
   50: ' smart.s. IS .s.

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