1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
\ dynamic string handling 10aug99py
\ Copyright (C) 2000,2005,2007 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/.
: delete ( buffer size count -- )
over min >r r@ - ( left over ) dup 0>
IF 2dup swap dup r@ + -rot swap move THEN + r> bl fill ;
[IFUNDEF] insert
: insert ( string length buffer size -- )
rot over min >r r@ - ( left over )
over dup r@ + rot move r> move ;
[THEN]
: $padding ( n -- n' )
[ 6 cells ] Literal + [ -4 cells ] Literal and ;
: $! ( addr1 u addr2 -- )
dup @ IF dup @ free throw THEN
over $padding allocate throw over ! @
over >r rot over cell+ r> move 2dup ! + cell+ bl swap c! ;
: $@len ( addr -- u ) @ @ ;
: $@ ( addr1 -- addr2 u ) @ dup cell+ swap @ ;
: $!len ( u addr -- )
over $padding over @ swap resize throw over ! @ ! ;
: $del ( addr off u -- ) >r >r dup $@ r> /string r@ delete
dup $@len r> - swap $!len ;
: $ins ( addr1 u addr2 off -- ) >r
2dup dup $@len rot + swap $!len $@ 1+ r> /string insert ;
: $+! ( addr1 u addr2 -- ) dup $@len $ins ;
: $off ( addr -- ) dup @ free throw off ;
\ dynamic string handling 12dec99py
: $split ( addr u char -- addr1 u1 addr2 u2 )
>r 2dup r> scan dup >r dup IF 1 /string THEN
2swap r> - 2swap ;
: $iter ( .. $addr char xt -- .. ) { char xt }
$@ BEGIN dup WHILE char $split >r >r xt execute r> r>
REPEAT 2drop ;
|
