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| 1 : | anton | 1.1 | \ EXTEND.FS CORE-EXT Word not fully tested! 12may93jaw |
| 2 : | |||
| 3 : | anton | 1.12 | \ Copyright (C) 1995 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 : | \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 20 : | |||
| 21 : | |||
| 22 : | anton | 1.1 | \ May be cross-compiled |
| 23 : | |||
| 24 : | decimal | ||
| 25 : | |||
| 26 : | \ .( 12may93jaw | ||
| 27 : | |||
| 28 : | anton | 1.11 | : .( ( compilation "...<paren>" -- ) \ core-ext dot-paren |
| 29 : | anton | 1.8 | [char] ) parse type ; immediate |
| 30 : | anton | 1.1 | |
| 31 : | \ VALUE 2>R 2R> 2R@ 17may93jaw | ||
| 32 : | |||
| 33 : | anton | 1.3 | \ !! 2value |
| 34 : | anton | 1.1 | |
| 35 : | anton | 1.11 | : 2Literal ( compilation w1 w2 -- ; run-time -- w1 w2 ) \ double two-literal |
| 36 : | swap postpone Literal postpone Literal ; immediate restrict | ||
| 37 : | pazsan | 1.2 | |
| 38 : | anton | 1.16 | ' drop alias d>s ( d -- n ) \ double d_to_s |
| 39 : | |||
| 40 : | anton | 1.11 | : m*/ ( d1 n2 u3 -- dqout ) \ double m-star-slash |
| 41 : | >r s>d >r abs -rot | ||
| 42 : | s>d r> xor r> swap >r >r dabs rot tuck um* 2swap um* | ||
| 43 : | swap >r 0 d+ r> -rot r@ um/mod -rot r> um/mod nip swap | ||
| 44 : | r> IF dnegate THEN ; | ||
| 45 : | pazsan | 1.4 | |
| 46 : | anton | 1.1 | \ CASE OF ENDOF ENDCASE 17may93jaw |
| 47 : | |||
| 48 : | \ just as described in dpANS5 | ||
| 49 : | |||
| 50 : | anton | 1.11 | 0 CONSTANT case ( compilation -- case-sys ; run-time -- ) \ core-ext |
| 51 : | immediate | ||
| 52 : | anton | 1.1 | |
| 53 : | anton | 1.11 | : of ( compilation -- of-sys ; run-time x1 x2 -- |x1 ) \ core-ext |
| 54 : | \ !! the implementation does not match the stack effect | ||
| 55 : | 1+ >r | ||
| 56 : | postpone over postpone = postpone if postpone drop | ||
| 57 : | r> ; immediate | ||
| 58 : | |||
| 59 : | : endof ( compilation case-sys1 of-sys -- case-sys2 ; run-time -- ) \ core-ext end-of | ||
| 60 : | >r postpone else r> ; immediate | ||
| 61 : | |||
| 62 : | : endcase ( compilation case-sys -- ; run-time x -- ) \ core-ext end-case | ||
| 63 : | postpone drop | ||
| 64 : | 0 ?do postpone then loop ; immediate | ||
| 65 : | anton | 1.1 | |
| 66 : | \ C" 17may93jaw | ||
| 67 : | |||
| 68 : | : (c") "lit ; | ||
| 69 : | |||
| 70 : | anton | 1.11 | : CLiteral |
| 71 : | postpone (c") here over char+ allot place align ; immediate restrict | ||
| 72 : | |||
| 73 : | : C" ( compilation "...<quote>" -- ; run-time -- c-addr ) \ core-ext c-quote | ||
| 74 : | [char] " parse postpone CLiteral ; immediate restrict | ||
| 75 : | anton | 1.1 | |
| 76 : | \ [COMPILE] 17may93jaw | ||
| 77 : | |||
| 78 : | anton | 1.11 | : [compile] ( compilation "name" -- ; run-time ? -- ? ) \ core-ext bracket-compile |
| 79 : | pazsan | 1.24 | comp' drop compile, ; immediate |
| 80 : | anton | 1.1 | |
| 81 : | \ CONVERT 17may93jaw | ||
| 82 : | |||
| 83 : | anton | 1.11 | : convert ( ud1 c-addr1 -- ud2 c-addr2 ) \ core-ext |
| 84 : | anton | 1.26 | \G obsolescent; superseded by @code{>number}. |
| 85 : | char+ true >number drop ; | ||
| 86 : | anton | 1.1 | |
| 87 : | \ ERASE 17may93jaw | ||
| 88 : | |||
| 89 : | anton | 1.11 | : erase ( addr len -- ) \ core-ext |
| 90 : | \ !! dependence on "1 chars 1 =" | ||
| 91 : | ( 0 1 chars um/mod nip ) 0 fill ; | ||
| 92 : | : blank ( addr len -- ) \ string | ||
| 93 : | bl fill ; | ||
| 94 : | anton | 1.1 | |
| 95 : | pazsan | 1.7 | \ SEARCH 02sep94py |
| 96 : | |||
| 97 : | anton | 1.28 | : search ( c-addr1 u1 c-addr2 u2 -- c-addr3 u3 flag ) \ string |
| 98 : | \ not very efficient; but if we want efficiency, we'll do it as primitive | ||
| 99 : | 2>r 2dup | ||
| 100 : | begin | ||
| 101 : | dup r@ >= | ||
| 102 : | while | ||
| 103 : | over 2r@ swap -text 0= if | ||
| 104 : | 2swap 2drop 2r> 2drop true exit | ||
| 105 : | endif | ||
| 106 : | 1 /string | ||
| 107 : | repeat | ||
| 108 : | 2drop 2r> 2drop false ; | ||
| 109 : | pazsan | 1.7 | |
| 110 : | anton | 1.1 | \ SOURCE-ID SAVE-INPUT RESTORE-INPUT 11jun93jaw |
| 111 : | |||
| 112 : | anton | 1.22 | : source-id ( -- 0 | -1 | fileid ) \ core-ext,file source-i-d |
| 113 : | anton | 1.13 | loadfile @ dup 0= IF drop sourceline# 0 min THEN ; |
| 114 : | anton | 1.1 | |
| 115 : | anton | 1.11 | : save-input ( -- x1 .. xn n ) \ core-ext |
| 116 : | anton | 1.14 | >in @ |
| 117 : | loadfile @ | ||
| 118 : | if | ||
| 119 : | loadfile @ file-position throw | ||
| 120 : | else | ||
| 121 : | blk @ | ||
| 122 : | linestart @ | ||
| 123 : | then | ||
| 124 : | sourceline# | ||
| 125 : | >tib @ | ||
| 126 : | source-id | ||
| 127 : | 6 ; | ||
| 128 : | anton | 1.1 | |
| 129 : | anton | 1.11 | : restore-input ( x1 .. xn n -- flag ) \ core-ext |
| 130 : | anton | 1.14 | 6 <> -12 and throw |
| 131 : | source-id <> -12 and throw | ||
| 132 : | >tib ! | ||
| 133 : | >r ( line# ) | ||
| 134 : | loadfile @ 0<> | ||
| 135 : | if | ||
| 136 : | loadfile @ reposition-file throw | ||
| 137 : | else | ||
| 138 : | linestart ! | ||
| 139 : | blk ! | ||
| 140 : | sourceline# r@ <> blk @ 0= and loadfile @ 0= and | ||
| 141 : | if | ||
| 142 : | drop rdrop true EXIT | ||
| 143 : | then | ||
| 144 : | then | ||
| 145 : | r> loadline ! | ||
| 146 : | >in ! | ||
| 147 : | false ; | ||
| 148 : | |||
| 149 : | anton | 1.1 | \ This things we don't need, but for being complete... jaw |
| 150 : | |||
| 151 : | \ EXPECT SPAN 17may93jaw | ||
| 152 : | |||
| 153 : | anton | 1.11 | variable span ( -- a-addr ) \ core-ext |
| 154 : | \ obsolescent | ||
| 155 : | anton | 1.1 | |
| 156 : | anton | 1.11 | : expect ( c-addr +len -- ) \ core-ext |
| 157 : | \ obsolescent; use accept | ||
| 158 : | anton | 1.9 | 0 rot over |
| 159 : | BEGIN ( maxlen span c-addr pos1 ) | ||
| 160 : | key decode ( maxlen span c-addr pos2 flag ) | ||
| 161 : | >r 2over = r> or | ||
| 162 : | UNTIL | ||
| 163 : | pazsan | 1.17 | 2 pick swap /string type |
| 164 : | nip span ! ; | ||
| 165 : | jwilke | 1.27 | |
| 166 : | \ marker 18dec94py | ||
| 167 : | |||
| 168 : | \ Marker creates a mark that is removed (including everything | ||
| 169 : | \ defined afterwards) when executing the mark. | ||
| 170 : | |||
| 171 : | : marker, ( -- mark ) here dup A, | ||
| 172 : | voclink @ A, voclink | ||
| 173 : | BEGIN @ dup WHILE dup 0 wordlist-link - @ A, REPEAT drop | ||
| 174 : | udp @ , ; | ||
| 175 : | |||
| 176 : | : marker! ( mark -- ) | ||
| 177 : | dup @ swap cell+ | ||
| 178 : | dup @ voclink ! cell+ | ||
| 179 : | voclink | ||
| 180 : | BEGIN | ||
| 181 : | @ dup | ||
| 182 : | WHILE | ||
| 183 : | over @ over 0 wordlist-link - ! | ||
| 184 : | swap cell+ swap | ||
| 185 : | REPEAT | ||
| 186 : | drop voclink | ||
| 187 : | BEGIN | ||
| 188 : | @ dup | ||
| 189 : | WHILE | ||
| 190 : | dup 0 wordlist-link - rehash | ||
| 191 : | REPEAT | ||
| 192 : | drop | ||
| 193 : | @ udp ! dp ! ; | ||
| 194 : | |||
| 195 : | : marker ( "mark" -- ) | ||
| 196 : | marker, Create A, | ||
| 197 : | DOES> ( -- ) | ||
| 198 : | @ marker! ; | ||
| 199 : | anton | 1.1 |
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