projects / pforth / blame
| 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 | ; |