\ smart .s 09mar2012py
\ Copyright (C) 2012 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation, either version 3
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program. If not, see http://www.gnu.org/licenses/.
\ idea: Gerald Wodni
: addr? ( addr -- flag )
TRY c@ IFERROR 2drop false nothrow ELSE drop true THEN ENDTRY ;
: string? ( addr u -- flag )
TRY dup #80 u> throw bounds ?DO I c@ bl < IF -1 throw THEN LOOP
IFERROR 2drop drop false nothrow ELSE true THEN ENDTRY ;
: .string. ( addr u -- )
.\" s\" " type '"' emit space ;
: .addr. ( addr -- ) hex. ;
: smart.s. ( n -- )
smart.s-skip @ smart.s-skip off IF drop EXIT THEN
over r> i swap >r -
dup 1 = IF false ELSE pick 2dup string? THEN IF
.string. smart.s-skip on
ELSE drop dup addr? IF .addr.
ELSE . THEN
' smart.s. IS .s.