1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/****************************************************************************
* Copyright (c) 1998 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/*
* Author: Thomas E. Dickey <dickey@clark.net> 1998
*
* $Id: filter.c,v 1.2 1998/05/10 00:39:27 tom Exp $
*/
#include <test.priv.h>
/*
* An example of the 'filter()' function in ncurses, this program prompts
* for commands and executes them (like a command shell). It illustrates
* how ncurses can be used to implement programs that are not full-screen.
*
* Ncurses differs slightly from SVr4 curses. The latter does not flush its
* state when exiting program mode, so the attributes on the command lines of
* this program 'bleed' onto the executed commands. Rather than use the
* reset_shell_mode() and reset_prog_mode() functions, we could invoke endwin()
* and refresh(), but that does not work any better.
*/
#ifndef NCURSES_VERSION
#define attr_t long
#define getnstr(s,n) getstr(s)
#endif
static int new_command(char *buffer, int length, attr_t underline)
{
int code;
attron(A_BOLD);
printw("Command: ");
attron(underline);
code = getnstr(buffer, length);
attroff(underline);
attroff(A_BOLD);
printw("\n");
return code;
}
int main(
int argc GCC_UNUSED,
char *argv[] GCC_UNUSED)
{
SCREEN *sp;
char buffer[80];
attr_t underline;
filter();
sp = newterm((char *)0, stdout, stdin);
cbreak();
keypad(stdscr, TRUE);
if (has_colors()) {
int background = COLOR_BLACK;
start_color();
#ifdef NCURSES_VERSION
if (use_default_colors () != ERR)
background = -1;
#endif
init_pair(1, COLOR_CYAN, background);
underline = COLOR_PAIR(1);
} else {
underline = A_UNDERLINE;
}
while (new_command(buffer, sizeof(buffer)-1, underline) != ERR
&& strlen(buffer) != 0) {
reset_shell_mode();
printf("\n");
fflush(stdout);
system(buffer);
reset_prog_mode();
touchwin(stdscr);
erase();
refresh();
}
printw("done");
refresh();
endwin();
return 0;
}
|
