1 \ *****************************************************************************
2 \ * Copyright (c) 2004, 2008 IBM Corporation
3 \ * All rights reserved.
4 \ * This program and the accompanying materials
5 \ * are made available under the terms of the BSD License
6 \ * which accompanies this distribution, and is available at
7 \ * http://www.opensource.org/licenses/bsd-license.php
10 \ * IBM Corporation - initial implementation
11 \ ****************************************************************************/
13 \ Copyright 2002,2003,2004 Segher Boessenkool <segher@kernel.crashing.org>
17 \ stuff we should already have:
19 : linked ( var -- ) here over @ , swap ! ;
27 VARIABLE wordlists forth-wordlist wordlists !
29 \ create a new wordlist
30 : wordlist ( -- wid ) here wordlists linked 0 , ;
37 10 CONSTANT max-in-search-order \ should define elsewhere
38 \ CREATE search-order max-in-search-order cells allot \ stack of wids \ is in engine now
39 \ search-order VALUE context \ top of stack \ is in engine now
41 : also ( -- ) clean-hash context dup cell+ dup to context >r @ r> ! ;
42 : previous ( -- ) clean-hash context cell- to context ;
43 : only ( -- ) clean-hash search-order to context ( minimal-wordlist search-order ! ) ;
44 : seal ( -- ) clean-hash context @ search-order dup to context ! ;
46 : get-order ( -- wid_n .. wid_1 n )
47 context >r search-order BEGIN dup r@ u<= WHILE
48 dup @ swap cell+ REPEAT r> drop
49 search-order - cell / ;
50 : set-order ( wid_n .. wid_1 n -- ) \ XXX: special cases for 0, -1
51 clean-hash 1- cells search-order + dup to context
52 BEGIN dup search-order u>= WHILE
53 dup >r ! r> cell- REPEAT drop ;
57 \ \ \ Compilation wordlist
60 : get-current ( -- wid ) current ;
61 : set-current ( wid -- ) to current ;
63 : definitions ( -- ) context @ set-current ;
70 : VOCABULARY ( C: "name" -- ) ( -- ) CREATE wordlist drop DOES> clean-hash context ! ;
71 \ : VOCABULARY ( C: "name" -- ) ( -- ) wordlist CREATE , DOES> @ context ! ;
72 \ XXX we'd like to swap forth and forth-wordlist around (for .voc 's sake)
73 : FORTH ( -- ) clean-hash forth-wordlist context ! ;
75 : .voc ( wid -- ) \ display name for wid \ needs work ( body> or something like that )
76 dup cell- @ ['] vocabulary ['] forth within IF
77 2 cells - >name name>string type ELSE u. THEN space ;
78 : vocs ( -- ) \ display all wordlist names
79 cr wordlists BEGIN @ dup WHILE dup .voc REPEAT drop ;
81 cr ." context: " get-order 0 ?DO .voc LOOP
82 cr ." current: " get-current .voc ;
88 : voc-find ( wid -- 0 | link )
89 clean-hash cell+ @ (find) clean-hash ;