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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: substrin.fth | |
4 | \ | |
5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
6 | \ | |
7 | \ - Do no alter or remove copyright notices | |
8 | \ | |
9 | \ - Redistribution and use of this software in source and binary forms, with | |
10 | \ or without modification, are permitted provided that the following | |
11 | \ conditions are met: | |
12 | \ | |
13 | \ - Redistribution of source code must retain the above copyright notice, | |
14 | \ this list of conditions and the following disclaimer. | |
15 | \ | |
16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
17 | \ this list of conditions and the following disclaimer in the | |
18 | \ documentation and/or other materials provided with the distribution. | |
19 | \ | |
20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
21 | \ may be used to endorse or promote products derived from this software | |
22 | \ without specific prior written permission. | |
23 | \ | |
24 | \ This software is provided "AS IS," without a warranty of any kind. | |
25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
36 | \ | |
37 | \ You acknowledge that this software is not designed, licensed or | |
38 | \ intended for use in the design, construction, operation or maintenance of | |
39 | \ any nuclear facility. | |
40 | \ | |
41 | \ ========== Copyright Header End ============================================ | |
42 | \ substrin.fth 2.6 94/09/06 | |
43 | \ Copyright 1985-1990 Bradley Forthware | |
44 | ||
45 | \ High level versions of string utilities needed for sifting | |
46 | ||
47 | only forth also hidden also definitions | |
48 | decimal | |
49 | forth definitions | |
50 | \ True if str1 is a substring of str2 | |
51 | : substring? ( adr1 len1 adr2 len2 -- flag ) | |
52 | rot tuck ( adr1 adr2 len1 len2 len1 ) | |
53 | < if drop 2drop false else tuck $= then | |
54 | ; | |
55 | ||
56 | headerless | |
57 | : unpack-name ( anf where -- where) \ Strip funny chars from a name field | |
58 | swap name>string rot pack | |
59 | ; | |
60 | hidden definitions | |
61 | : 4drop ( n1 n2 n3 n4 -- ) 2drop 2drop ; | |
62 | : 4dup ( n1 n2 n3 n4 -- n1 n2 n3 n4 n1 n2 n3 n4 ) 2over 2over ; | |
63 | ||
64 | headers | |
65 | forth definitions | |
66 | : sindex ( adr1 len1 adr2 len2 -- n ) | |
67 | 0 >r | |
68 | begin ( adr1 len1 adr2' len2' ) | |
69 | \ If string 1 is longer than string 2, it is not a substring | |
70 | 2 pick over > if 4drop r> drop -1 exit then | |
71 | 4dup substring? if 4drop r> exit then | |
72 | \ Not found, so remove the first character from string 2 and try again | |
73 | swap 1+ swap 1- | |
74 | r> 1+ >r | |
75 | again | |
76 | ; | |
77 | only forth also definitions |