1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2007, 2009, 2010, 2011, 2012 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/>. */
19 #include "output/driver.h"
20 #include "output/driver-provider.h"
28 #include "data/file-name.h"
29 #include "data/settings.h"
30 #include "libpspp/array.h"
31 #include "libpspp/assertion.h"
32 #include "libpspp/message.h"
33 #include "libpspp/llx.h"
34 #include "libpspp/string-map.h"
35 #include "libpspp/string-set.h"
36 #include "libpspp/str.h"
37 #include "output/message-item.h"
38 #include "output/output-item.h"
39 #include "output/text-item.h"
42 #include "gl/xalloc.h"
43 #include "gl/xmemdup0.h"
46 #define _(msgid) gettext (msgid)
48 static const struct output_driver_factory *factories[];
50 /* Drivers currently registered with output_driver_register(). */
51 static struct llx_list drivers = LLX_INITIALIZER (drivers);
53 /* TEXT_ITEM_SYNTAX being accumulated until another kind of output arrives. */
54 static struct string deferred_syntax = DS_EMPTY_INITIALIZER;
59 while (!llx_is_empty (&drivers))
61 struct output_driver *d = llx_pop_head (&drivers, &llx_malloc_mgr);
62 output_driver_destroy (d);
67 output_get_supported_formats (struct string_set *formats)
69 const struct output_driver_factory **fp;
71 for (fp = factories; *fp != NULL; fp++)
72 string_set_insert (formats, (*fp)->extension);
76 output_submit__ (struct output_item *item)
78 struct llx *llx, *next;
80 for (llx = llx_head (&drivers); llx != llx_null (&drivers); llx = next)
82 struct output_driver *d = llx_data (llx);
83 enum settings_output_type type;
85 next = llx_next (llx);
87 if (is_message_item (item))
89 const struct msg *m = message_item_get_msg (to_message_item (item));
90 if (m->severity == MSG_S_NOTE)
91 type = SETTINGS_OUTPUT_NOTE;
93 type = SETTINGS_OUTPUT_ERROR;
95 else if (is_text_item (item)
96 && text_item_get_type (to_text_item (item)) == TEXT_ITEM_SYNTAX)
97 type = SETTINGS_OUTPUT_SYNTAX;
99 type = SETTINGS_OUTPUT_RESULT;
101 if (settings_get_output_routing (type) & d->device_type)
102 d->class->submit (d, item);
105 output_item_unref (item);
109 flush_deferred_syntax (void)
111 if (!ds_is_empty (&deferred_syntax))
113 char *syntax = ds_steal_cstr (&deferred_syntax);
114 output_submit__ (text_item_super (
115 text_item_create_nocopy (TEXT_ITEM_SYNTAX, syntax)));
120 is_syntax_item (const struct output_item *item)
122 return (is_text_item (item)
123 && text_item_get_type (to_text_item (item)) == TEXT_ITEM_SYNTAX);
126 /* Submits ITEM to the configured output drivers, and transfers ownership to
127 the output subsystem. */
129 output_submit (struct output_item *item)
131 if (is_syntax_item (item))
133 ds_put_cstr (&deferred_syntax, text_item_get_text (to_text_item (item)));
134 output_item_unref (item);
138 flush_deferred_syntax ();
139 output_submit__ (item);
142 /* Flushes output to screen devices, so that the user can see
143 output that doesn't fill up an entire page. */
149 flush_deferred_syntax ();
150 for (llx = llx_head (&drivers); llx != llx_null (&drivers);
151 llx = llx_next (llx))
153 struct output_driver *d = llx_data (llx);
154 if (d->device_type & SETTINGS_DEVICE_TERMINAL && d->class->flush != NULL)
160 output_driver_init (struct output_driver *driver,
161 const struct output_driver_class *class,
162 const char *name, enum settings_output_devices type)
164 driver->class = class;
165 driver->name = xstrdup (name);
166 driver->device_type = type;
170 output_driver_destroy (struct output_driver *driver)
174 char *name = driver->name;
175 if (output_driver_is_registered (driver))
176 output_driver_unregister (driver);
177 if (driver->class->destroy)
178 driver->class->destroy (driver);
184 output_driver_get_name (const struct output_driver *driver)
190 output_driver_register (struct output_driver *driver)
192 assert (!output_driver_is_registered (driver));
193 llx_push_tail (&drivers, driver, &llx_malloc_mgr);
197 output_driver_unregister (struct output_driver *driver)
199 llx_remove (llx_find (llx_head (&drivers), llx_null (&drivers), driver),
204 output_driver_is_registered (const struct output_driver *driver)
206 return llx_find (llx_head (&drivers), llx_null (&drivers), driver) != NULL;
209 /* Useful functions for output driver implementation. */
212 output_driver_track_current_command (const struct output_item *output_item,
213 char **command_namep)
215 if (is_text_item (output_item))
217 const struct text_item *item = to_text_item (output_item);
218 const char *text = text_item_get_text (item);
219 enum text_item_type type = text_item_get_type (item);
221 if (type == TEXT_ITEM_COMMAND_OPEN)
223 free (*command_namep);
224 *command_namep = xstrdup (text);
226 else if (type == TEXT_ITEM_COMMAND_CLOSE)
228 free (*command_namep);
229 *command_namep = NULL;
234 extern const struct output_driver_factory txt_driver_factory;
235 extern const struct output_driver_factory list_driver_factory;
236 extern const struct output_driver_factory html_driver_factory;
237 extern const struct output_driver_factory csv_driver_factory;
238 #ifdef ODF_WRITE_SUPPORT
239 extern const struct output_driver_factory odt_driver_factory;
242 extern const struct output_driver_factory pdf_driver_factory;
243 extern const struct output_driver_factory ps_driver_factory;
244 extern const struct output_driver_factory svg_driver_factory;
247 static const struct output_driver_factory *factories[] =
250 &list_driver_factory,
251 &html_driver_factory,
253 #ifdef ODF_WRITE_SUPPORT
264 static const struct output_driver_factory *
265 find_factory (const char *format)
267 const struct output_driver_factory **fp;
269 for (fp = factories; *fp != NULL; fp++)
271 const struct output_driver_factory *f = *fp;
273 if (!strcmp (f->extension, format))
276 return &txt_driver_factory;
279 static enum settings_output_devices
280 default_device_type (const char *file_name)
282 return (!strcmp (file_name, "-")
283 ? SETTINGS_DEVICE_TERMINAL
284 : SETTINGS_DEVICE_LISTING);
287 struct output_driver *
288 output_driver_create (struct string_map *options)
290 enum settings_output_devices device_type;
291 const struct output_driver_factory *f;
292 struct output_driver *driver;
297 format = string_map_find_and_delete (options, "format");
298 file_name = string_map_find_and_delete (options, "output-file");
302 if (file_name != NULL)
304 const char *extension = strrchr (file_name, '.');
305 format = xstrdup (extension != NULL ? extension + 1 : "");
308 format = xstrdup ("txt");
310 f = find_factory (format);
312 if (file_name == NULL)
313 file_name = xstrdup (f->default_file_name);
315 /* XXX should use parse_enum(). */
316 device_string = string_map_find_and_delete (options, "device");
317 if (device_string == NULL || device_string[0] == '\0')
318 device_type = default_device_type (file_name);
319 else if (!strcmp (device_string, "terminal"))
320 device_type = SETTINGS_DEVICE_TERMINAL;
321 else if (!strcmp (device_string, "listing"))
322 device_type = SETTINGS_DEVICE_LISTING;
325 error (0, 0, _("%s is not a valid device type (the choices are `%s' and `%s')"),
326 device_string, "terminal", "listing");
327 device_type = default_device_type (file_name);
330 driver = f->create (file_name, device_type, options);
333 const struct string_map_node *node;
336 STRING_MAP_FOR_EACH_KEY (key, node, options)
337 error (0, 0, _("%s: unknown option `%s'"), file_name, key);
339 string_map_clear (options);
343 free (device_string);