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1 | \ ========== Copyright Header Begin ========================================== |
2 | \ | |
3 | \ Hypervisor Software File: suspend.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 | \ suspend.fth 2.7 99/05/04 | |
43 | \ Copyright 1985-1994 Bradley Forthware | |
44 | ||
45 | \ Smart keyboard driven exit | |
46 | \ Type q to abort the listing, anything else to pause it. | |
47 | \ While it's paused, type q to abort, anything else to resume. | |
48 | ||
49 | decimal | |
50 | ||
51 | only forth also hidden also | |
52 | hidden definitions | |
53 | ||
54 | headerless | |
55 | variable 1-more-line? 1-more-line? off | |
56 | true value page-mode? | |
57 | ||
58 | forth definitions | |
59 | headers | |
60 | : no-page ( -- ) false is page-mode? ; | |
61 | : page-mode ( -- ) true is page-mode? ; | |
62 | headerless | |
63 | : (reset-page) #line off 1-more-line? off ; | |
64 | ' (reset-page) is reset-page | |
65 | : suspend ( -- flag ) | |
66 | #line off | |
67 | ??cr dark ." More [<space>,<cr>,q,n,p,c] ? " light | |
68 | key #out @ (cr spaces (cr #out off | |
69 | dup ascii q = if drop true exit then | |
70 | dup ascii n = if drop true exit then | |
71 | dup ascii p = if drop page-mode false exit then | |
72 | dup ascii c = if drop no-page false exit then | |
73 | dup linefeed = swap carret = or if 1-more-line? on then | |
74 | false | |
75 | ; | |
76 | d# 24 value default-#lines | |
77 | headers | |
78 | ||
79 | defer lines/page ' default-#lines is lines/page | |
80 | ||
81 | headerless | |
82 | : (exit?) ( -- flag ) \ True if the listing should be stopped | |
83 | interactive? 0= if false exit then | |
84 | ||
85 | \ In case we start with lines/page already too large, we clear it out | |
86 | page-mode? if #line @ lines/page u>= if suspend exit then then | |
87 | 1-more-line? @ if 1-more-line? off suspend exit then | |
88 | page-mode? if #line @ 1+ lines/page = if suspend exit then then | |
89 | key? if | |
90 | key ascii q = if #line off true else suspend then | |
91 | else | |
92 | false | |
93 | then | |
94 | ; | |
95 | headers | |
96 | defer exit? | |
97 | ' (exit?) is exit? | |
98 | only forth also definitions |