Commit | Line | Data |
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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 | |
1a088514 | 6 | \ Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom |
8e9db35f | 7 | \ |
1f99f95d S |
8 | \ Permission to use, copy, modify, and/or distribute this |
9 | \ software for any purpose with or without fee is hereby granted. | |
10 | \ | |
11 | \ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL | |
12 | \ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED | |
13 | \ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL | |
14 | \ THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR | |
15 | \ CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING | |
16 | \ FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF | |
17 | \ CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
18 | \ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
8e9db35f PB |
19 | |
20 | \ MOD: PLB 2/11/00 Allow EOL and \ between { }. | |
21 | ||
22 | anew task-locals.fth | |
23 | ||
24 | private{ | |
25 | variable loc-temp-mode \ if true, declaring temporary variables | |
26 | variable loc-comment-mode \ if true, in comment section | |
27 | variable loc-done | |
28 | }private | |
29 | ||
30 | : { ( <local-declaration}> -- ) | |
31 | loc-done off | |
32 | loc-temp-mode off | |
33 | loc-comment-mode off | |
34 | BEGIN | |
35 | bl word count | |
36 | dup 0> \ make sure we are not at the end of a line | |
37 | IF | |
38 | over c@ | |
39 | CASE | |
40 | \ handle special characters | |
41 | ascii } OF loc-done on 2drop ENDOF | |
42 | ascii | OF loc-temp-mode on 2drop ENDOF | |
43 | ascii - OF loc-comment-mode on 2drop ENDOF | |
44 | ascii ) OF ." { ... ) imbalance!" cr abort ENDOF | |
45 | ascii \ OF postpone \ 2drop ENDOF \ Forth comment | |
46 | ||
47 | \ process name | |
48 | >r ( save char ) | |
49 | ( addr len ) | |
50 | loc-comment-mode @ | |
51 | IF | |
52 | 2drop | |
53 | ELSE | |
54 | \ if in temporary mode, assign local var = 0 | |
55 | loc-temp-mode @ | |
56 | IF compile false | |
57 | THEN | |
58 | \ otherwise take value from stack | |
59 | (local) | |
60 | THEN | |
61 | r> | |
62 | ENDCASE | |
63 | ELSE | |
64 | 2drop refill 0= abort" End of input while defining local variables!" | |
65 | THEN | |
66 | loc-done @ | |
67 | UNTIL | |
68 | 0 0 (local) | |
69 | ; immediate | |
70 | ||
71 | privatize | |
72 | ||
73 | \ tests | |
74 | : tlv1 { n -- } n dup n * dup n * ; | |
75 | ||
76 | : tlv2 { v1 v2 | l1 l2 -- } | |
77 | v1 . v2 . cr | |
78 | v1 v2 + -> l1 | |
79 | l1 . l2 . cr | |
80 | ; |