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| 1 : | pazsan | 1.1 | \ dynamic string handling 10aug99py |
| 2 : | |||
| 3 : | anton | 1.3 | \ Copyright (C) 2000 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 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 | ||
| 19 : | anton | 1.4 | \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
| 20 : | anton | 1.3 | |
| 21 : | pazsan | 1.1 | : delete ( buffer size count -- ) |
| 22 : | over min >r r@ - ( left over ) dup 0> | ||
| 23 : | IF 2dup swap dup r@ + -rot swap move THEN + r> bl fill ; | ||
| 24 : | |||
| 25 : | : insert ( string length buffer size -- ) | ||
| 26 : | rot over min >r r@ - ( left over ) | ||
| 27 : | over dup r@ + rot move r> move ; | ||
| 28 : | |||
| 29 : | : $padding ( n -- n' ) | ||
| 30 : | [ 6 cells ] Literal + [ -4 cells ] Literal and ; | ||
| 31 : | : $! ( addr1 u addr2 -- ) | ||
| 32 : | dup @ IF dup @ free throw THEN | ||
| 33 : | over $padding allocate throw over ! @ | ||
| 34 : | over >r rot over cell+ r> move 2dup ! + cell+ bl swap c! ; | ||
| 35 : | : $@len ( addr -- u ) @ @ ; | ||
| 36 : | : $@ ( addr1 -- addr2 u ) @ dup cell+ swap @ ; | ||
| 37 : | : $!len ( u addr -- ) | ||
| 38 : | over $padding over @ swap resize throw over ! @ ! ; | ||
| 39 : | : $del ( addr off u -- ) >r >r dup $@ r> /string r@ delete | ||
| 40 : | dup $@len r> - swap $!len ; | ||
| 41 : | : $ins ( addr1 u addr2 off -- ) >r | ||
| 42 : | 2dup dup $@len rot + swap $!len $@ 1+ r> /string insert ; | ||
| 43 : | : $+! ( addr1 u addr2 -- ) dup $@len $ins ; | ||
| 44 : | : $off ( addr -- ) dup @ free throw off ; | ||
| 45 : | |||
| 46 : | \ dynamic string handling 12dec99py | ||
| 47 : | |||
| 48 : | : $split ( addr u char -- addr1 u1 addr2 u2 ) | ||
| 49 : | pazsan | 1.2 | >r 2dup r> scan dup >r dup IF 1 /string THEN |
| 50 : | 2swap r> - 2swap ; | ||
| 51 : | pazsan | 1.1 | |
| 52 : | : $iter ( .. $addr char xt -- .. ) { char xt } | ||
| 53 : | $@ BEGIN dup WHILE char $split >r >r xt execute r> r> | ||
| 54 : | REPEAT 2drop ; |
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