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1 | /* |
2 | * Copyright (c) 1988 Mark Nudleman | |
3 | * Copyright (c) 1988 Regents of the University of California. | |
4 | * All rights reserved. | |
5 | * | |
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6 | * Redistribution and use in source and binary forms are permitted |
7 | * provided that the above copyright notice and this paragraph are | |
8 | * duplicated in all such forms and that any documentation, | |
9 | * advertising materials, and other materials related to such | |
10 | * distribution and use acknowledge that the software was developed | |
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11 | * by Mark Nudleman and the University of California, Berkeley. The |
12 | * name of Mark Nudleman or the | |
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13 | * University may not be used to endorse or promote products derived |
14 | * from this software without specific prior written permission. | |
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
17 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
18 | */ | |
19 | ||
20 | #ifndef lint | |
a942b40b | 21 | static char sccsid[] = "@(#)help.c 5.4 (Berkeley) %G%"; |
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22 | #endif /* not lint */ |
23 | ||
24 | #include "less.h" | |
25 | ||
26 | /* | |
27 | * Display some help. | |
28 | * Just invoke another "less" to display the help file. | |
29 | * | |
30 | * {{ This makes this function very simple, and makes changing the | |
31 | * help file very easy, but it may present difficulties on | |
32 | * (non-Unix) systems which do not supply the "system()" function. }} | |
33 | */ | |
34 | ||
35 | public void | |
36 | help() | |
37 | { | |
f5d8beae | 38 | char cmd[MAXPATHLEN+100]; |
bfe13c81 | 39 | |
f5d8beae | 40 | (void)sprintf(cmd, |
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41 | "-less -m '-PmHELP -- ?eEND -- Press g to see it again:Press RETURN for more., or q when done ' %s", |
42 | HELPFILE); | |
43 | lsystem(cmd); | |
bfe13c81 | 44 | } |