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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: strings.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 | \ strings.fth 2.10 96/07/25 | |
43 | \ Copyright 1985-1994 Bradley Forthware | |
44 | ||
45 | \ Primitives to concatenate ( "cat ), and print ( ". ) strings. | |
46 | decimal | |
47 | headerless | |
48 | ||
49 | h# 260 buffer: string2 | |
50 | ||
51 | headerless0 | |
52 | ||
53 | : save-string ( pstr1 -- pstr2 ) string2 "copy string2 ; | |
54 | ||
55 | headers | |
56 | : $number ( adr len -- true | n false ) | |
57 | $dnumber? case | |
58 | 0 of true endof | |
59 | 1 of false endof | |
60 | 2 of drop false endof | |
61 | endcase | |
62 | ; | |
63 | ||
64 | headerless | |
65 | : $hnumber ( adr len -- true | n false ) push-hex $number pop-base ; | |
66 | headers | |
67 | ||
68 | \ Here is a direct implementation of $number, except that it doesn't handle | |
69 | \ DPL, and it allows , in addition to . for number punctuation | |
70 | \ : $number ( adr len -- n false | true ) | |
71 | \ 1 0 2swap ( sign n adr len ) | |
72 | \ bounds ?do ( sign n ) | |
73 | \ i c@ base @ digit if ( sign n digit ) | |
74 | \ swap base @ ul* + ( sign n' ) | |
75 | \ else ( sign n char ) | |
76 | \ case ( sign n ) | |
77 | \ ascii - of swap negate swap endof ( -sign n ) | |
78 | \ ascii . of endof ( sign n ) | |
79 | \ ascii , of endof ( sign n ) | |
80 | \ ( sign n char ) drop nip 0 swap leave ( 0 n ) | |
81 | \ endcase | |
82 | \ then | |
83 | \ loop ( sign|0 n ) | |
84 | \ over if ( sign n ) | |
85 | \ * false ( n' false ) | |
86 | \ else ( 0 n ) | |
87 | \ 2drop true ( true ) | |
88 | \ then | |
89 | \ ; |