1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 1997-9, 2000, 2007, 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/>. */
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 static struct output_item *deferred_syntax;
54 static bool in_command;
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 (deferred_syntax != NULL)
113 output_submit__ (deferred_syntax);
114 deferred_syntax = NULL;
118 /* Submits ITEM to the configured output drivers, and transfers ownership to
119 the output subsystem. */
121 output_submit (struct output_item *item)
123 if (is_text_item (item))
125 struct text_item *text = to_text_item (item);
126 switch (text_item_get_type (text))
128 case TEXT_ITEM_SYNTAX:
131 flush_deferred_syntax ();
132 deferred_syntax = item;
137 case TEXT_ITEM_COMMAND_OPEN:
138 output_submit__ (item);
139 flush_deferred_syntax ();
143 case TEXT_ITEM_COMMAND_CLOSE:
152 output_submit__ (item);
155 /* Flushes output to screen devices, so that the user can see
156 output that doesn't fill up an entire page. */
162 for (llx = llx_head (&drivers); llx != llx_null (&drivers);
163 llx = llx_next (llx))
165 struct output_driver *d = llx_data (llx);
166 if (d->device_type & SETTINGS_DEVICE_TERMINAL && d->class->flush != NULL)
172 output_driver_init (struct output_driver *driver,
173 const struct output_driver_class *class,
174 const char *name, enum settings_output_devices type)
176 driver->class = class;
177 driver->name = xstrdup (name);
178 driver->device_type = type;
182 output_driver_destroy (struct output_driver *driver)
186 char *name = driver->name;
187 if (output_driver_is_registered (driver))
188 output_driver_unregister (driver);
189 if (driver->class->destroy)
190 driver->class->destroy (driver);
196 output_driver_get_name (const struct output_driver *driver)
202 output_driver_register (struct output_driver *driver)
204 assert (!output_driver_is_registered (driver));
205 llx_push_tail (&drivers, driver, &llx_malloc_mgr);
209 output_driver_unregister (struct output_driver *driver)
211 llx_remove (llx_find (llx_head (&drivers), llx_null (&drivers), driver),
216 output_driver_is_registered (const struct output_driver *driver)
218 return llx_find (llx_head (&drivers), llx_null (&drivers), driver) != NULL;
221 /* Useful functions for output driver implementation. */
224 output_driver_track_current_command (const struct output_item *output_item,
225 char **command_namep)
227 if (is_text_item (output_item))
229 const struct text_item *item = to_text_item (output_item);
230 const char *text = text_item_get_text (item);
231 enum text_item_type type = text_item_get_type (item);
233 if (type == TEXT_ITEM_COMMAND_OPEN)
235 free (*command_namep);
236 *command_namep = xstrdup (text);
238 else if (type == TEXT_ITEM_COMMAND_CLOSE)
240 free (*command_namep);
241 *command_namep = NULL;
246 extern const struct output_driver_factory txt_driver_factory;
247 extern const struct output_driver_factory list_driver_factory;
248 extern const struct output_driver_factory html_driver_factory;
249 extern const struct output_driver_factory csv_driver_factory;
251 extern const struct output_driver_factory odt_driver_factory;
254 extern const struct output_driver_factory pdf_driver_factory;
255 extern const struct output_driver_factory ps_driver_factory;
256 extern const struct output_driver_factory svg_driver_factory;
259 static const struct output_driver_factory *factories[] =
262 &list_driver_factory,
263 &html_driver_factory,
276 static const struct output_driver_factory *
277 find_factory (const char *format)
279 const struct output_driver_factory **fp;
281 for (fp = factories; *fp != NULL; fp++)
283 const struct output_driver_factory *f = *fp;
285 if (!strcmp (f->extension, format))
288 return &txt_driver_factory;
291 static enum settings_output_devices
292 default_device_type (const char *file_name)
294 return (!strcmp (file_name, "-")
295 ? SETTINGS_DEVICE_TERMINAL
296 : SETTINGS_DEVICE_LISTING);
299 struct output_driver *
300 output_driver_create (struct string_map *options)
302 enum settings_output_devices device_type;
303 const struct output_driver_factory *f;
304 struct output_driver *driver;
309 file_name = string_map_find_and_delete (options, "output-file");
310 if (file_name == NULL)
311 file_name = xstrdup ("-");
313 format = string_map_find_and_delete (options, "format");
316 const char *extension = strrchr (file_name, '.');
317 format = xstrdup (extension != NULL ? extension + 1 : "");
320 /* XXX should use parse_enum(). */
321 device_string = string_map_find_and_delete (options, "device");
322 if (device_string == NULL || device_string[0] == '\0')
323 device_type = default_device_type (file_name);
324 else if (!strcmp (device_string, "terminal"))
325 device_type = SETTINGS_DEVICE_TERMINAL;
326 else if (!strcmp (device_string, "listing"))
327 device_type = SETTINGS_DEVICE_LISTING;
330 error (0, 0, _("%s is not a valid device type (the choices are "
331 "\"terminal\" and \"listing\")"), device_string);
332 device_type = default_device_type (file_name);
335 f = find_factory (format);
336 driver = f->create (file_name, device_type, options);
339 const struct string_map_node *node;
342 STRING_MAP_FOR_EACH_KEY (key, node, options)
343 error (0, 0, _("%s: unknown option \"%s\""), file_name, key);
345 string_map_clear (options);
349 free (device_string);