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
|
/*
* Copyright (C) 2002-2004 Pekka Enberg
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "buffer.h"
#include "error.h"
#include "indent.h"
#include "version.h"
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static void version(void)
{
printf("XML Indent, version %s\n", VERSION);
printf("Copyright (C) 2002-2004 Pekka Enberg\n");
}
static void usage(void)
{
printf("Usage: %s [options] [filename] ...\n", PACKAGE);
printf("Options:\n");
printf("\t-o <output>\tOutput file\n");
printf("\t-i <indent>\tIndent level\n");
printf("\t-t\t\tUse tabs instead of spaces for indent\n");
printf("\t-l <max-cols>\tMaximum columns for line wrapping\n");
printf("\t-n <pos>\tSuppress newline at position\n");
printf("\t-f\t\tForce newline on elements without children\n");
printf("\t-h\t\tHelp\n");
printf("\t-v\t\tVersion information\n");
printf("\t-w\t\tOverwrite original file\n");
}
/* Overwrite original files. */
static bool overwrite = false;
static int format_file(const char * filename, char * output_filename,
struct indent_options * opts)
{
char input_filename[FILENAME_MAX];
FILE * input;
FILE * output;
input_filename[0] = '\0';
if (filename != NULL) {
strcpy(input_filename, filename);
/* Avoid zero-length files. */
if (overwrite || strcmp(input_filename, output_filename) == 0) {
char backup_filename[FILENAME_MAX];
strcpy(backup_filename, input_filename);
strcat(backup_filename, "~");
rename(input_filename, backup_filename);
strcpy(output_filename, input_filename);
strcpy(input_filename, backup_filename);
}
}
if (strlen(input_filename) > 0) {
input = fopen(input_filename, "r");
if (NULL == input) {
error("Could not open '%s': %s.", input_filename,
strerror(errno));
return EXIT_FAILURE;
}
} else {
input = stdin;
}
if (strlen(output_filename) > 0) {
output = fopen(output_filename, "w");
if (NULL == output) {
error("Could not open '%s': %s.", output_filename,
strerror(errno));
return EXIT_FAILURE;
}
} else {
output = stdout;
}
indent(input, output, opts);
if (output != stdout)
fclose(output);
if (input != stdout)
fclose(input);
return EXIT_SUCCESS;
}
static void parse_force_newline_arg(char * arg, struct indent_options * opts)
{
if (strcmp(arg, "as") == 0) {
opts->force_newline_after_start_tag = false;
} else if (strcmp(arg, "ae") == 0) {
opts->force_newline_after_end_tag = false;
} else if (strcmp(arg, "bs") == 0) {
opts->force_newline_before_start_tag = false;
} else if (strcmp(arg, "be") == 0) {
opts->force_newline_before_end_tag = false;
}
}
static void parse_args(int argc, char * argv[], struct indent_options * opts,
char * output_filename)
{
bool explicit_indent_level = false;
for (;;) {
int arg_index = getopt(argc, argv, "hfi:l:o:n:tvw");
if (arg_index == -1) {
break;
}
switch (arg_index) {
case 'h':
usage();
exit(EXIT_SUCCESS);
case 'i':
opts->num_indent_chars = atoi(optarg);
explicit_indent_level = true;
break;
case 'l':
opts->max_columns = atoi(optarg);
opts->wrap_long_lines = true;
break;
case 't':
opts->indent_char = '\t';
if (!explicit_indent_level) {
/* Default indent level for tabs is different. */
opts->num_indent_chars = 1;
}
break;
case 'f':
opts->force_always = true;
break;
case 'o':
strcpy(output_filename, optarg);
break;
case 'n':
parse_force_newline_arg(optarg, opts);
break;
case 'v':
version();
exit(EXIT_SUCCESS);
case 'w':
overwrite = true;
break;
default:
usage();
exit(EXIT_FAILURE);
}
}
}
int main(int argc, char * argv[])
{
char output_filename[FILENAME_MAX];
struct indent_options opts;
int ret = EXIT_SUCCESS;
int i;
output_filename[0] = '\0';
indent_options_set_defaults(&opts);
parse_args(argc, argv, &opts, output_filename);
/* Iterate over all input files. */
for (i = optind; i < argc; i++) {
ret = format_file(argv[i], output_filename, &opts);
if (ret != EXIT_SUCCESS)
break;
}
/* When we have no input files to process, wait for stdin. */
if (optind == argc)
ret = format_file(NULL, output_filename, &opts);
return ret;
}
|
