Commit | Line | Data |
---|---|---|
8e9db35f PB |
1 | \ @(#) $M$ 98/01/26 1.2 |
2 | \ standard { v0 v1 ... vn | l0 l1 .. lm -- } syntax | |
3 | \ based on ANSI basis words (LOCAL) and TO | |
4 | \ | |
5 | \ Author: Phil Burk | |
6 | \ Copyright 1994 3DO, Phil Burk, Larry Polansky, Devid Rosenboom | |
7 | \ | |
8 | \ The pForth software code is dedicated to the public domain, | |
9 | \ and any third party may reproduce, distribute and modify | |
10 | \ the pForth software code or any derivative works thereof | |
11 | \ without any compensation or license. The pForth software | |
12 | \ code is provided on an "as is" basis without any warranty | |
13 | \ of any kind, including, without limitation, the implied | |
14 | \ warranties of merchantability and fitness for a particular | |
15 | \ purpose and their equivalents under the laws of any jurisdiction. | |
16 | ||
17 | \ MOD: PLB 2/11/00 Allow EOL and \ between { }. | |
18 | ||
19 | anew task-locals.fth | |
20 | ||
21 | private{ | |
22 | variable loc-temp-mode \ if true, declaring temporary variables | |
23 | variable loc-comment-mode \ if true, in comment section | |
24 | variable loc-done | |
25 | }private | |
26 | ||
27 | : { ( <local-declaration}> -- ) | |
28 | loc-done off | |
29 | loc-temp-mode off | |
30 | loc-comment-mode off | |
31 | BEGIN | |
32 | bl word count | |
33 | dup 0> \ make sure we are not at the end of a line | |
34 | IF | |
35 | over c@ | |
36 | CASE | |
37 | \ handle special characters | |
38 | ascii } OF loc-done on 2drop ENDOF | |
39 | ascii | OF loc-temp-mode on 2drop ENDOF | |
40 | ascii - OF loc-comment-mode on 2drop ENDOF | |
41 | ascii ) OF ." { ... ) imbalance!" cr abort ENDOF | |
42 | ascii \ OF postpone \ 2drop ENDOF \ Forth comment | |
43 | ||
44 | \ process name | |
45 | >r ( save char ) | |
46 | ( addr len ) | |
47 | loc-comment-mode @ | |
48 | IF | |
49 | 2drop | |
50 | ELSE | |
51 | \ if in temporary mode, assign local var = 0 | |
52 | loc-temp-mode @ | |
53 | IF compile false | |
54 | THEN | |
55 | \ otherwise take value from stack | |
56 | (local) | |
57 | THEN | |
58 | r> | |
59 | ENDCASE | |
60 | ELSE | |
61 | 2drop refill 0= abort" End of input while defining local variables!" | |
62 | THEN | |
63 | loc-done @ | |
64 | UNTIL | |
65 | 0 0 (local) | |
66 | ; immediate | |
67 | ||
68 | privatize | |
69 | ||
70 | \ tests | |
71 | : tlv1 { n -- } n dup n * dup n * ; | |
72 | ||
73 | : tlv2 { v1 v2 | l1 l2 -- } | |
74 | v1 . v2 . cr | |
75 | v1 v2 + -> l1 | |
76 | l1 . l2 . cr | |
77 | ; |