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"
41 #include "gl/xalloc.h"
42 #include "gl/xmemdup0.h"
45 #define _(msgid) gettext (msgid)
47 static const struct output_driver_factory *factories[];
49 /* Drivers currently registered with output_driver_register(). */
50 static struct llx_list drivers = LLX_INITIALIZER (drivers);
52 /* TEXT_ITEM_SYNTAX being accumulated until another kind of output arrives. */
53 static struct string deferred_syntax = DS_EMPTY_INITIALIZER;
58 while (!llx_is_empty (&drivers))
60 struct output_driver *d = llx_pop_head (&drivers, &llx_malloc_mgr);
61 output_driver_destroy (d);
66 output_get_supported_formats (struct string_set *formats)
68 const struct output_driver_factory **fp;
70 for (fp = factories; *fp != NULL; fp++)
71 string_set_insert (formats, (*fp)->extension);
75 output_submit__ (struct output_item *item)
77 struct llx *llx, *next;
79 for (llx = llx_head (&drivers); llx != llx_null (&drivers); llx = next)
81 struct output_driver *d = llx_data (llx);
82 enum settings_output_type type;
84 next = llx_next (llx);
86 if (is_message_item (item))
88 const struct msg *m = message_item_get_msg (to_message_item (item));
89 if (m->severity == MSG_S_NOTE)
90 type = SETTINGS_OUTPUT_NOTE;
92 type = SETTINGS_OUTPUT_ERROR;
94 else if (is_text_item (item)
95 && text_item_get_type (to_text_item (item)) == TEXT_ITEM_SYNTAX)
96 type = SETTINGS_OUTPUT_SYNTAX;
98 type = SETTINGS_OUTPUT_RESULT;
100 if (settings_get_output_routing (type) & d->device_type)
101 d->class->submit (d, item);
104 output_item_unref (item);
108 flush_deferred_syntax (void)
110 if (!ds_is_empty (&deferred_syntax))
112 char *syntax = ds_steal_cstr (&deferred_syntax);
113 output_submit__ (text_item_super (
114 text_item_create_nocopy (TEXT_ITEM_SYNTAX, syntax)));
119 is_syntax_item (const struct output_item *item)
121 return (is_text_item (item)
122 && text_item_get_type (to_text_item (item)) == TEXT_ITEM_SYNTAX);
125 /* Submits ITEM to the configured output drivers, and transfers ownership to
126 the output subsystem. */
128 output_submit (struct output_item *item)
130 if (is_syntax_item (item))
132 ds_put_cstr (&deferred_syntax, text_item_get_text (to_text_item (item)));
133 output_item_unref (item);
137 flush_deferred_syntax ();
138 output_submit__ (item);
141 /* Flushes output to screen devices, so that the user can see
142 output that doesn't fill up an entire page. */
148 flush_deferred_syntax ();
149 for (llx = llx_head (&drivers); llx != llx_null (&drivers);
150 llx = llx_next (llx))
152 struct output_driver *d = llx_data (llx);
153 if (d->device_type & SETTINGS_DEVICE_TERMINAL && d->class->flush != NULL)
159 output_driver_init (struct output_driver *driver,
160 const struct output_driver_class *class,
161 const char *name, enum settings_output_devices type)
163 driver->class = class;
164 driver->name = xstrdup (name);
165 driver->device_type = type;
169 output_driver_destroy (struct output_driver *driver)
173 char *name = driver->name;
174 if (output_driver_is_registered (driver))
175 output_driver_unregister (driver);
176 if (driver->class->destroy)
177 driver->class->destroy (driver);
183 output_driver_get_name (const struct output_driver *driver)
189 output_driver_register (struct output_driver *driver)
191 assert (!output_driver_is_registered (driver));
192 llx_push_tail (&drivers, driver, &llx_malloc_mgr);
196 output_driver_unregister (struct output_driver *driver)
198 llx_remove (llx_find (llx_head (&drivers), llx_null (&drivers), driver),
203 output_driver_is_registered (const struct output_driver *driver)
205 return llx_find (llx_head (&drivers), llx_null (&drivers), driver) != NULL;
208 /* Useful functions for output driver implementation. */
211 output_driver_track_current_command (const struct output_item *output_item,
212 char **command_namep)
214 if (is_text_item (output_item))
216 const struct text_item *item = to_text_item (output_item);
217 const char *text = text_item_get_text (item);
218 enum text_item_type type = text_item_get_type (item);
220 if (type == TEXT_ITEM_COMMAND_OPEN)
222 free (*command_namep);
223 *command_namep = xstrdup (text);
225 else if (type == TEXT_ITEM_COMMAND_CLOSE)
227 free (*command_namep);
228 *command_namep = NULL;
233 extern const struct output_driver_factory txt_driver_factory;
234 extern const struct output_driver_factory list_driver_factory;
235 extern const struct output_driver_factory html_driver_factory;
236 extern const struct output_driver_factory csv_driver_factory;
237 #ifdef ODF_WRITE_SUPPORT
238 extern const struct output_driver_factory odt_driver_factory;
241 extern const struct output_driver_factory pdf_driver_factory;
242 extern const struct output_driver_factory ps_driver_factory;
243 extern const struct output_driver_factory svg_driver_factory;
246 static const struct output_driver_factory *factories[] =
249 &list_driver_factory,
250 &html_driver_factory,
252 #ifdef ODF_WRITE_SUPPORT
263 static const struct output_driver_factory *
264 find_factory (const char *format)
266 const struct output_driver_factory **fp;
268 for (fp = factories; *fp != NULL; fp++)
270 const struct output_driver_factory *f = *fp;
272 if (!strcmp (f->extension, format))
275 return &txt_driver_factory;
278 static enum settings_output_devices
279 default_device_type (const char *file_name)
281 return (!strcmp (file_name, "-")
282 ? SETTINGS_DEVICE_TERMINAL
283 : SETTINGS_DEVICE_LISTING);
286 struct output_driver *
287 output_driver_create (struct string_map *options)
289 enum settings_output_devices device_type;
290 const struct output_driver_factory *f;
291 struct output_driver *driver;
296 format = string_map_find_and_delete (options, "format");
297 file_name = string_map_find_and_delete (options, "output-file");
301 if (file_name != NULL)
303 const char *extension = strrchr (file_name, '.');
304 format = xstrdup (extension != NULL ? extension + 1 : "");
307 format = xstrdup ("txt");
309 f = find_factory (format);
311 if (file_name == NULL)
312 file_name = xstrdup (f->default_file_name);
314 /* XXX should use parse_enum(). */
315 device_string = string_map_find_and_delete (options, "device");
316 if (device_string == NULL || device_string[0] == '\0')
317 device_type = default_device_type (file_name);
318 else if (!strcmp (device_string, "terminal"))
319 device_type = SETTINGS_DEVICE_TERMINAL;
320 else if (!strcmp (device_string, "listing"))
321 device_type = SETTINGS_DEVICE_LISTING;
324 msg (MW, _("%s is not a valid device type (the choices are `%s' and `%s')"),
325 device_string, "terminal", "listing");
326 device_type = default_device_type (file_name);
329 driver = f->create (file_name, device_type, options);
332 const struct string_map_node *node;
335 STRING_MAP_FOR_EACH_KEY (key, node, options)
336 msg (MW, _("%s: unknown option `%s'"), file_name, key);
338 string_map_clear (options);
342 free (device_string);