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| 1 : | anton | 1.1 | \ words with non-default and non-immediate compilation semantics |
| 2 : | |||
| 3 : | anton | 1.6 | \ Copyright (C) 1996,1998 Free Software Foundation, Inc. |
| 4 : | anton | 1.1 | |
| 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 : | \ this file comes last, because these words override cross' words. | ||
| 22 : | |||
| 23 : | jwilke | 1.12 | require ./vars.fs |
| 24 : | |||
| 25 : | anton | 1.1 | create s"-buffer /line chars allot |
| 26 : | pazsan | 1.5 | has? compiler 0= |
| 27 : | jwilke | 1.4 | [IF] : s" [ELSE] :noname [THEN] |
| 28 : | [char] " parse | ||
| 29 : | /line min >r s"-buffer r@ cmove | ||
| 30 : | s"-buffer r> ; | ||
| 31 : | pazsan | 1.5 | has? compiler [IF] |
| 32 : | jwilke | 1.4 | :noname [char] " parse postpone SLiteral ; |
| 33 : | anton | 1.1 | interpret/compile: S" ( compilation 'ccc"' -- ; run-time -- c-addr u ) \ core,file s-quote |
| 34 : | crook | 1.11 | \G Compilation: Parse a string @i{ccc} delimited by a @code{"} |
| 35 : | \G (double quote). At run-time, return the length, @i{u}, and the | ||
| 36 : | \G start address, @i{c-addr} of the string. Interpretation: parse | ||
| 37 : | \G the string as before, and return @i{c-addr}, @i{u}. The | ||
| 38 : | \G string is stored in a temporary buffer which may be overwritten | ||
| 39 : | \G by subsequent uses of @code{S"}. | ||
| 40 : | jwilke | 1.4 | [THEN] |
| 41 : | anton | 1.1 | |
| 42 : | pazsan | 1.5 | has? compiler [IF] |
| 43 : | anton | 1.2 | : [IS] ( compilation "name" -- ; run-time xt -- ) \ possibly-gforth bracket-is |
| 44 : | ' >body postpone ALiteral postpone ! ; immediate restrict | ||
| 45 : | |||
| 46 : | anton | 1.1 | :noname ' >body ! ; |
| 47 : | anton | 1.2 | ' [IS] |
| 48 : | crook | 1.11 | interpret/compile: IS ( xt "name" -- ) \ gforth |
| 49 : | anton | 1.1 | |
| 50 : | :noname ' >body @ ; | ||
| 51 : | :noname ' >body postpone ALiteral postpone @ ; | ||
| 52 : | interpret/compile: What's ( "name" -- addr ) \ gforth | ||
| 53 : | |||
| 54 : | :noname [char] " parse type ; | ||
| 55 : | :noname postpone (.") ," align ; | ||
| 56 : | interpret/compile: ." ( compilation 'ccc"' -- ; run-time -- ) \ core dot-quote | ||
| 57 : | crook | 1.11 | \G Compilation: Parse a string @i{ccc} delimited by a " (double |
| 58 : | \G quote). At run-time, display the string. Interpretation semantics | ||
| 59 : | \G for this word are undefined in ANS Forth. Gforth's interpretation | ||
| 60 : | \G semantics are to display the string. This is the simplest way to | ||
| 61 : | \G display a string from within a definition; see examples below. | ||
| 62 : | anton | 1.1 | |
| 63 : | \ DOES> 17mar93py | ||
| 64 : | |||
| 65 : | :noname | ||
| 66 : | dodoes, here !does ] | ||
| 67 : | defstart :-hook ; | ||
| 68 : | :noname | ||
| 69 : | jwilke | 1.10 | ;-hook ?struc |
| 70 : | [ has? xconds [IF] ] exit-like [ [THEN] ] | ||
| 71 : | postpone (does>) dodoes, | ||
| 72 : | anton | 1.1 | defstart :-hook ; |
| 73 : | interpret/compile: DOES> ( compilation colon-sys1 -- colon-sys2 ; run-time nest-sys -- ) \ core does | ||
| 74 : | |||
| 75 : | crook | 1.11 | ' IS Alias TO ( w "name" -- ) \ core-ext |
| 76 : | anton | 1.1 | immediate |
| 77 : | |||
| 78 : | jwilke | 1.4 | [THEN] |
| 79 : | anton | 1.1 | |
| 80 : | pazsan | 1.5 | has? compiler [IF] |
| 81 : | jwilke | 1.3 | : interpret/compile? ( xt -- flag ) |
| 82 : | >does-code ['] S" >does-code = ; | ||
| 83 : | pazsan | 1.5 | [ELSE] |
| 84 : | : interpret/compile? | ||
| 85 : | false ; | ||
| 86 : | [THEN] | ||
| 87 : | jwilke | 1.3 |
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