1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2009, 2010 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "data/file-name.h"
23 #include "libpspp/assertion.h"
24 #include "libpspp/compiler.h"
25 #include "libpspp/message.h"
26 #include "libpspp/string-map.h"
27 #include "output/text-item.h"
28 #include "output/driver-provider.h"
29 #include "output/options.h"
30 #include "output/message-item.h"
31 #include "output/table-item.h"
32 #include "output/table-provider.h"
35 #include "gl/xalloc.h"
36 #include "gl/xvasprintf.h"
39 #define _(msgid) gettext (msgid)
41 /* Comma-separated value output driver. */
44 struct output_driver driver;
46 char *separator; /* Comma or tab. */
47 char *file_name; /* Output file name. */
48 char *command_name; /* Current command. */
49 FILE *file; /* Output file. */
50 int n_items; /* Number of items output so far. */
53 static const struct output_driver_class csv_driver_class;
55 static struct csv_driver *
56 csv_driver_cast (struct output_driver *driver)
58 assert (driver->class == &csv_driver_class);
59 return UP_CAST (driver, struct csv_driver, driver);
62 static struct driver_option *
63 opt (struct output_driver *d, struct string_map *options, const char *key,
64 const char *default_value)
66 return driver_option_get (d, options, key, default_value);
69 static struct output_driver *
70 csv_create (const char *file_name, enum settings_output_devices device_type,
73 struct output_driver *d;
74 struct csv_driver *csv;
76 csv = xzalloc (sizeof *csv);
78 output_driver_init (&csv->driver, &csv_driver_class, file_name, device_type);
80 csv->separator = parse_string (opt (d, o, "separator", ","));
81 csv->file_name = xstrdup (file_name);
82 csv->file = fn_open (csv->file_name, "w");
85 if (csv->file == NULL)
87 error (0, errno, _("error opening output file \"%s\""), csv->file_name);
88 output_driver_destroy (d);
96 csv_destroy (struct output_driver *driver)
98 struct csv_driver *csv = csv_driver_cast (driver);
100 if (csv->file != NULL)
101 fn_close (csv->file_name, csv->file);
103 free (csv->separator);
104 free (csv->file_name);
109 csv_flush (struct output_driver *driver)
111 struct csv_driver *csv = csv_driver_cast (driver);
112 if (csv->file != NULL)
117 csv_output_field (FILE *file, const char *field)
119 while (*field == ' ')
122 if (field[strcspn (field, "\"\n\r,\t")])
127 for (p = field; *p != '\0'; p++)
140 csv_output_field_format (FILE *file, const char *format, ...)
141 PRINTF_FORMAT (2, 3);
144 csv_output_field_format (FILE *file, const char *format, ...)
149 va_start (args, format);
150 s = xvasprintf (format, args);
153 csv_output_field (file, s);
158 csv_put_separator (struct csv_driver *csv)
160 if (csv->n_items++ > 0)
161 putc ('\n', csv->file);
165 csv_submit (struct output_driver *driver,
166 const struct output_item *output_item)
168 struct csv_driver *csv = csv_driver_cast (driver);
170 output_driver_track_current_command (output_item, &csv->command_name);
172 if (is_table_item (output_item))
174 struct table_item *table_item = to_table_item (output_item);
175 const char *caption = table_item_get_caption (table_item);
176 const struct table *t = table_item_get_table (table_item);
179 csv_put_separator (csv);
183 csv_output_field_format (csv->file, "Table: %s", caption);
184 putc ('\n', csv->file);
187 for (y = 0; y < table_nr (t); y++)
189 for (x = 0; x < table_nc (t); x++)
191 struct table_cell cell;
193 table_get_cell (t, x, y, &cell);
196 fputs (csv->separator, csv->file);
198 if (x != cell.d[TABLE_HORZ][0] || y != cell.d[TABLE_VERT][0])
199 csv_output_field (csv->file, "");
201 csv_output_field (csv->file, cell.contents);
203 table_cell_free (&cell);
205 putc ('\n', csv->file);
208 else if (is_text_item (output_item))
210 const struct text_item *text_item = to_text_item (output_item);
211 enum text_item_type type = text_item_get_type (text_item);
212 const char *text = text_item_get_text (text_item);
214 if (type == TEXT_ITEM_COMMAND_OPEN || type == TEXT_ITEM_COMMAND_CLOSE
215 || type == TEXT_ITEM_SYNTAX)
218 csv_put_separator (csv);
221 case TEXT_ITEM_TITLE:
222 csv_output_field_format (csv->file, "Title: %s", text);
225 case TEXT_ITEM_SUBTITLE:
226 csv_output_field_format (csv->file, "Subtitle: %s", text);
230 csv_output_field (csv->file, text);
233 putc ('\n', csv->file);
235 else if (is_message_item (output_item))
237 const struct message_item *message_item = to_message_item (output_item);
238 const struct msg *msg = message_item_get_msg (message_item);
239 char *s = msg_to_string (msg, csv->command_name);
240 csv_put_separator (csv);
241 csv_output_field (csv->file, s);
243 putc ('\n', csv->file);
247 struct output_driver_factory csv_driver_factory = { "csv", csv_create };
249 static const struct output_driver_class csv_driver_class =