| 1 | \ @(#) private.fth 98/01/26 1.2 |
| 2 | \ PRIVATIZE |
| 3 | \ |
| 4 | \ Privatize words that are only needed within the file |
| 5 | \ and do not need to be exported. |
| 6 | \ |
| 7 | \ Usage: |
| 8 | \ PRIVATE{ |
| 9 | \ : FOO ; \ Everything between PRIVATE{ and }PRIVATE will become private. |
| 10 | \ : MOO ; |
| 11 | \ }PRIVATE |
| 12 | \ : GOO foo moo ; \ can use foo and moo |
| 13 | \ PRIVATIZE \ smudge foo and moo |
| 14 | \ ' foo \ will fail |
| 15 | \ |
| 16 | \ Copyright 1996 Phil Burk |
| 17 | \ |
| 18 | \ 19970701 PLB Use unsigned compares for machines with "negative" addresses. |
| 19 | |
| 20 | anew task-private.fth |
| 21 | |
| 22 | variable private-start |
| 23 | variable private-stop |
| 24 | $ 20 constant FLAG_SMUDGE |
| 25 | |
| 26 | : PRIVATE{ |
| 27 | latest private-start ! |
| 28 | 0 private-stop ! |
| 29 | ; |
| 30 | : }PRIVATE |
| 31 | private-stop @ 0= not abort" Extra }PRIVATE" |
| 32 | latest private-stop ! |
| 33 | ; |
| 34 | : PRIVATIZE ( -- , smudge all words between PRIVATE{ and }PRIVATE ) |
| 35 | private-start @ 0= abort" Missing PRIVATE{" |
| 36 | private-stop @ 0= abort" Missing }PRIVATE" |
| 37 | private-stop @ |
| 38 | BEGIN |
| 39 | dup private-start @ u> \ 19970701 |
| 40 | WHILE |
| 41 | \ ." Smudge " dup id. cr |
| 42 | dup c@ flag_smudge or over c! |
| 43 | prevname |
| 44 | REPEAT |
| 45 | drop |
| 46 | 0 private-start ! |
| 47 | 0 private-stop ! |
| 48 | ; |