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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* rlcat - cat(1) using readline
*
* usage: rlcat
*/
/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
This file is part of the GNU Readline Library, a library for
reading lines of text with interactive input and history editing.
The GNU Readline Library is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2, or
(at your option) any later version.
The GNU Readline Library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
The GNU General Public License is often shipped with GNU software, and
is generally kept in a file called COPYING or LICENSE. If you do not
have a copy of the license, write to the Free Software Foundation,
59 Temple Place, Suite 330, Boston, MA 02111 USA. */
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <sys/types.h>
#include "posixstat.h"
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#else
extern void exit();
#endif
#ifndef errno
extern int errno;
#endif
#if defined (READLINE_LIBRARY)
# include "readline.h"
# include "history.h"
#else
# include <readline/readline.h>
# include <readline/history.h>
#endif
extern int optind;
extern char *optarg;
static int stdcat();
static char *progname;
static int vflag;
static void
usage()
{
fprintf (stderr, "%s: usage: %s [-vEVN] [filename]\n", progname, progname);
}
int
main (argc, argv)
int argc;
char **argv;
{
char *temp;
int opt, Vflag, Nflag;
progname = strrchr(argv[0], '/');
if (progname == 0)
progname = argv[0];
else
progname++;
vflag = Vflag = Nflag = 0;
while ((opt = getopt(argc, argv, "vEVN")) != EOF)
{
switch (opt)
{
case 'v':
vflag = 1;
break;
case 'V':
Vflag = 1;
break;
case 'E':
Vflag = 0;
break;
case 'N':
Nflag = 1;
break;
default:
usage ();
exit (2);
}
}
argc -= optind;
argv += optind;
if (isatty(0) == 0 || argc || Nflag)
return stdcat(argc, argv);
rl_variable_bind ("editing-mode", Vflag ? "vi" : "emacs");
while (temp = readline (""))
{
if (*temp)
add_history (temp);
printf ("%s\n", temp);
}
return (ferror (stdout));
}
static int
fcopy(fp)
FILE *fp;
{
int c;
char *x;
while ((c = getc(fp)) != EOF)
{
if (vflag && isascii ((unsigned char)c) && isprint((unsigned char)c) == 0)
{
x = rl_untranslate_keyseq (c);
if (fputs (x, stdout) != 0)
return 1;
}
else if (putchar (c) == EOF)
return 1;
}
return (ferror (stdout));
}
int
stdcat (argc, argv)
int argc;
char **argv;
{
int i, fd, r;
char *s;
FILE *fp;
if (argc == 0)
return (fcopy(stdin));
for (i = 0, r = 1; i < argc; i++)
{
if (*argv[i] == '-' && argv[i][1] == 0)
fp = stdin;
else
{
fp = fopen (argv[i], "r");
if (fp == 0)
{
fprintf (stderr, "%s: %s: cannot open: %s\n", progname, argv[i], strerror(errno));
continue;
}
}
r = fcopy (fp);
if (fp != stdin)
fclose(fp);
}
return r;
}
|
