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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Copyright (C) 2016 Karel Zak <kzak@redhat.com>
*
* This file may be redistributed under the terms of the
* GNU Lesser General Public License.
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <getopt.h>
#include "c.h"
#include "nls.h"
#include "strutils.h"
#include "xalloc.h"
#include "libsmartcols.h"
struct column_flag {
const char *name;
int mask;
};
static const struct column_flag flags[] = {
{ "trunc", SCOLS_FL_TRUNC },
{ "tree", SCOLS_FL_TREE },
{ "right", SCOLS_FL_RIGHT },
{ "strictwidth",SCOLS_FL_STRICTWIDTH },
{ "noextremes", SCOLS_FL_NOEXTREMES },
{ "hidden", SCOLS_FL_HIDDEN },
{ "wrap", SCOLS_FL_WRAP },
{ "wrapnl", SCOLS_FL_WRAPNL },
{ "none", 0 }
};
static long name_to_flag(const char *name, long unsigned int namesz)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(flags); i++) {
const char *cn = flags[i].name;
if (!strncasecmp(name, cn, namesz) && !*(cn + namesz))
return flags[i].mask;
}
warnx(_("unknown flag: %s"), name);
return -1;
}
static int parse_column_flags(char *str)
{
unsigned long flags = 0;
if (string_to_bitmask(str, &flags, name_to_flag))
err(EXIT_FAILURE, "failed to parse column flags");
return flags;
}
static struct libscols_column *parse_column(FILE *f)
{
size_t len = 0;
char *line = NULL;
int nlines = 0;
struct libscols_column *cl = NULL;
while (getline(&line, &len, f) != -1) {
char *p = strrchr(line, '\n');
if (p)
*p = '\0';
switch (nlines) {
case 0: /* NAME */
{
struct libscols_cell *hr;
cl = scols_new_column();
if (!cl)
goto fail;
hr = scols_column_get_header(cl);
if (!hr || scols_cell_set_data(hr, line))
goto fail;
break;
}
case 1: /* WIDTH-HINT */
{
double whint = strtod_or_err(line, "failed to parse column whint");
if (scols_column_set_whint(cl, whint))
goto fail;
break;
}
case 2: /* FLAGS */
{
int flags = parse_column_flags(line);
if (scols_column_set_flags(cl, flags))
goto fail;
break;
}
case 3: /* COLOR */
if (scols_column_set_color(cl, line))
goto fail;
break;
default:
break;
}
nlines++;
}
return cl;
fail:
scols_unref_column(cl);
return NULL;
}
static int parse_column_data(FILE *f, struct libscols_table *tb, int column)
{
size_t len = 0, nlines = 0;
int i;
char *str = NULL;
while ((i = getline(&str, &len, f)) != -1) {
struct libscols_line *ln;
char *p = strrchr(str, '\n');
if (p)
*p = '\0';
while ((p = strrchr(str, '\\')) && *(p + 1) == 'n') {
*p = '\n';
memmove(p + 1, p + 2, i - (p + 2 - str));
}
ln = scols_table_get_line(tb, nlines++);
if (!ln)
break;
scols_line_set_data(ln, column, str);
}
return 0;
}
int main(int argc, char *argv[])
{
struct libscols_table *tb;
int c, n, nlines = 0;
static const struct option longopts[] = {
{ "maxout", 0, 0, 'm' },
{ "column", 1, 0, 'c' },
{ "nlines", 1, 0, 'n' },
{ "width", 1, 0, 'w' },
{ NULL, 0, 0, 0 },
};
setlocale(LC_ALL, ""); /* just to have enable UTF8 chars */
scols_init_debug(0);
tb = scols_new_table();
if (!tb)
err(EXIT_FAILURE, "failed to create output table");
while((c = getopt_long(argc, argv, "c:mn:w:", longopts, NULL)) != -1) {
switch(c) {
case 'c': /* add column from file */
{
struct libscols_column *cl;
FILE *f = fopen(optarg, "r");
if (!f)
err(EXIT_FAILURE, "%s: open failed", optarg);
cl = parse_column(f);
if (cl && scols_table_add_column(tb, cl))
err(EXIT_FAILURE, "%s: failed to add column", optarg);
scols_unref_column(cl);
fclose(f);
break;
}
case 'm':
scols_table_enable_maxout(tb, TRUE);
break;
case 'n':
nlines = strtou32_or_err(optarg, "failed to parse number of lines");
break;
case 'w':
scols_table_set_termforce(tb, SCOLS_TERMFORCE_ALWAYS);
scols_table_set_termwidth(tb, strtou32_or_err(optarg, "failed to parse terminal width"));
break;
}
}
if (nlines <= 0)
errx(EXIT_FAILURE, "--nlines not set");
for (n = 0; n < nlines; n++) {
struct libscols_line *ln = scols_new_line();
if (!ln || scols_table_add_line(tb, ln))
err(EXIT_FAILURE, "failed to add a new line");
}
n = 0;
while (optind < argc) {
FILE *f = fopen(argv[optind], "r");
if (!f)
err(EXIT_FAILURE, "%s: open failed", argv[optind]);
parse_column_data(f, tb, n);
optind++;
n++;
}
scols_table_enable_colors(tb, isatty(STDOUT_FILENO));
scols_print_table(tb);
scols_unref_table(tb);
return EXIT_SUCCESS;
}
|
