src/filefilter.cc

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "filefilter.h"
  23
  24 #include <cstring>
  25
  26 #include <gdk-pixbuf/gdk-pixbuf.h>
  27
  28 #include <config.h>
  29
  30 #include "cache.h"
  31 #include "debug.h"
  32 #include "main-defines.h"
  33 #include "options.h"
  34 #include "rcfile.h"
  35 #include "ui-fileops.h"
  36
  37 /*
  38  *-----------------------------------------------------------------------------
  39  * file filtering
  40  *-----------------------------------------------------------------------------
  41  */
  42
  43 static GList *filter_list = nullptr;
  44 static GList *extension_list = nullptr;
  45 static GList *sidecar_ext_list = nullptr;
  46
  47 static GList *file_class_extension_list[FILE_FORMAT_CLASSES];
  48
  49 static GList *file_writable_list = nullptr; /* writable files */
  50 static GList *file_sidecar_list = nullptr; /* files with allowed sidecar */
  51
  52
  53 static FilterEntry *filter_entry_new(const gchar *key, const gchar *description,
  54                                      const gchar *extensions, FileFormatClass file_class,
  55                                      gboolean writable, gboolean allow_sidecar, gboolean enabled)
  56 {
  57         FilterEntry *fe;
  58
  59         fe = g_new0(FilterEntry, 1);
  60         fe->key = g_strdup(key);
  61         fe->description = g_strdup(description);
  62         fe->extensions = g_strdup(extensions);
  63         fe->enabled = enabled;
  64         fe->file_class = file_class;
  65         fe->writable = writable;
  66         fe->allow_sidecar = allow_sidecar;
  67
  68         return fe;
  69 }
  70
  71 static void filter_entry_free(FilterEntry *fe)
  72 {
  73         if (!fe) return;
  74
  75         g_free(fe->key);
  76         g_free(fe->description);
  77         g_free(fe->extensions);
  78         g_free(fe);
  79 }
  80
  81 GList *filter_get_list()
  82 {
  83         return filter_list;
  84 }
  85
  86 void filter_remove_entry(FilterEntry *fe)
  87 {
  88         if (!g_list_find(filter_list, fe)) return;
  89
  90         filter_list = g_list_remove(filter_list, fe);
  91         filter_entry_free(fe);
  92 }
  93
  94 static FilterEntry *filter_get_by_key(const gchar *key)
  95 {
  96         GList *work;
  97
  98         if (!key) return nullptr;
  99
 100         work = filter_list;
 101         while (work)
 102                 {
 103                 auto fe = static_cast<FilterEntry *>(work->data);
 104                 work = work->next;
 105
 106                 if (strcmp(fe->key, key) == 0) return fe;
 107                 }
 108
 109         return nullptr;
 110 }
 111
 112 static gboolean filter_key_exists(const gchar *key)
 113 {
 114         return (filter_get_by_key(key) != nullptr);
 115 }
 116
 117 void filter_add(const gchar *key, const gchar *description, const gchar *extensions, FileFormatClass file_class, gboolean writable, gboolean allow_sidecar, gboolean enabled)
 118 {
 119         filter_list = g_list_append(filter_list, filter_entry_new(key, description, extensions, file_class, writable, allow_sidecar, enabled));
 120 }
 121
 122 void filter_add_unique(const gchar *description, const gchar *extensions, FileFormatClass file_class, gboolean writable, gboolean allow_sidecar, gboolean enabled)
 123 {
 124         gchar *key;
 125         guint n;
 126
 127         key = g_strdup("user0");
 128         n = 1;
 129         while (filter_key_exists(key))
 130                 {
 131                 g_free(key);
 132                 if (n > 999) return;
 133                 key = g_strdup_printf("user%d", n);
 134                 n++;
 135                 }
 136
 137         filter_add(key, description, extensions, file_class, writable, allow_sidecar, enabled);
 138         g_free(key);
 139 }
 140
 141 static void filter_add_if_missing(const gchar *key, const gchar *description, const gchar *extensions, FileFormatClass file_class, gboolean writable, gboolean allow_sidecar, gboolean enabled)
 142 {
 143         GList *work;
 144
 145         if (!key) return;
 146
 147         work = filter_list;
 148         while (work)
 149                 {
 150                 auto fe = static_cast<FilterEntry *>(work->data);
 151                 work = work->next;
 152                 if (fe->key && strcmp(fe->key, key) == 0)
 153                         {
 154                         if (fe->file_class == FORMAT_CLASS_UNKNOWN)
 155                                 fe->file_class = file_class;    /* for compatibility */
 156
 157                         if (fe->writable && fe->allow_sidecar)
 158                                 {
 159                                 fe->writable = writable;
 160                                 fe->allow_sidecar = allow_sidecar;
 161                                 }
 162                         return;
 163                         }
 164                 }
 165
 166         filter_add(key, description, extensions, file_class, writable, allow_sidecar, enabled);
 167 }
 168
 169 void filter_reset()
 170 {
 171         g_list_free_full(filter_list, reinterpret_cast<GDestroyNotify>(filter_entry_free));
 172         filter_list = nullptr;
 173 }
 174
 175 void filter_add_defaults()
 176 {
 177         /* formats supported by custom loaders */
 178         filter_add_if_missing("dds", "DirectDraw Surface", ".dds", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 179 #if HAVE_PDF
 180         filter_add_if_missing("pdf", "Portable Document Format", ".pdf", FORMAT_CLASS_DOCUMENT, FALSE, FALSE, TRUE);
 181 #endif
 182 #if HAVE_HEIF
 183         filter_add_if_missing("heif/avif", "HEIF/AVIF Image", ".heif;.heic;.avif", FORMAT_CLASS_IMAGE, FALSE, TRUE, TRUE);
 184 #endif
 185 #if HAVE_WEBP
 186         filter_add_if_missing("webp", "WebP Format", ".webp", FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
 187 #endif
 188 #if HAVE_DJVU
 189         filter_add_if_missing("djvu", "DjVu Format", ".djvu;.djv", FORMAT_CLASS_DOCUMENT, FALSE, FALSE, TRUE);
 190 #endif
 191 #if HAVE_JPEGXL
 192         filter_add_if_missing("jxl", "JXL", ".jxl", FORMAT_CLASS_IMAGE, FALSE, TRUE, TRUE);
 193 #endif
 194 #if HAVE_J2K
 195         filter_add_if_missing("jp2", "JPEG 2000", ".jp2", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 196 #endif
 197 #if HAVE_ARCHIVE
 198         filter_add_if_missing("zip", "Archive files", ".zip;.rar;.tar;.tar.gz;.tar.bz2;.tar.xz;.tgz;.tbz;.txz;.cbr;.cbz;.gz;.bz2;.xz;.lzh;.lza;.7z", FORMAT_CLASS_ARCHIVE, FALSE, FALSE, TRUE);
 199 #endif
 200         filter_add_if_missing("scr", "ZX Spectrum screen Format", ".scr", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 201         filter_add_if_missing("psd", "Adobe Photoshop Document", ".psd", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 202         filter_add_if_missing("apng", "Animated Portable Network Graphic", ".apng", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 203
 204         /* formats supported by gdk-pixbuf */
 205         GSList *list;
 206         GSList *work;
 207
 208         list = gdk_pixbuf_get_formats();
 209         work = list;
 210         while (work)
 211                 {
 212                 GdkPixbufFormat *format;
 213                 gchar *name;
 214                 gchar *desc;
 215                 gchar **extensions;
 216                 GString *filter = nullptr;
 217                 guint i;
 218
 219                 format = static_cast<GdkPixbufFormat *>(work->data);
 220                 work = work->next;
 221
 222                 name = gdk_pixbuf_format_get_name(format);
 223
 224                 if (strcmp(name, "Digital camera RAW") == 0)
 225                         {
 226                         DEBUG_1("Skipped '%s' from loader", name);
 227                         g_free(name);
 228                         continue;
 229                         }
 230
 231                 desc = gdk_pixbuf_format_get_description(format);
 232                 extensions = gdk_pixbuf_format_get_extensions(format);
 233
 234                 i = 0;
 235                 while (extensions[i])
 236                         {
 237                         if (!filter)
 238                                 {
 239                                 filter = g_string_new(".");
 240                                 filter = g_string_append(filter, extensions[i]);
 241                                 }
 242                         else
 243                                 {
 244                                 filter = g_string_append(filter, ";.");
 245                                 filter = g_string_append(filter, extensions[i]);
 246                                 }
 247                         i++;
 248                         }
 249
 250                 DEBUG_1("loader reported [%s] [%s] [%s]", name, desc, filter->str);
 251
 252                 filter_add_if_missing(name, desc, filter->str, FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
 253
 254                 g_free(name);
 255                 g_free(desc);
 256                 g_strfreev(extensions);
 257                 g_string_free(filter, TRUE);
 258                 }
 259         g_slist_free(list);
 260
 261         /* add defaults even if gdk-pixbuf does not have them, but disabled */
 262         filter_add_if_missing("jpeg", "JPEG group", ".jpg;.jpeg;.jpe", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 263         filter_add_if_missing("png", "Portable Network Graphic", ".png", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 264         filter_add_if_missing("tiff", "Tiff", ".tif;.tiff", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 265         filter_add_if_missing("pnm", "Packed Pixel formats", ".pbm;.pgm;.pnm;.ppm", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 266         filter_add_if_missing("gif", "Graphics Interchange Format", ".gif", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 267         filter_add_if_missing("xbm", "X bitmap", ".xbm", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 268         filter_add_if_missing("xpm", "X pixmap", ".xpm", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 269         filter_add_if_missing("bmp", "Bitmap", ".bmp", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 270         filter_add_if_missing("ico", "Icon file", ".ico;.cur", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 271         filter_add_if_missing("ras", "Raster", ".ras", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 272         filter_add_if_missing("svg", "Scalable Vector Graphics", ".svg", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 273
 274         /* special formats for stereo */
 275         filter_add_if_missing("jps", "Stereo side-by-side jpeg", ".jps", FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
 276         filter_add_if_missing("mpo", "Stereo multi-image jpeg", ".mpo", FORMAT_CLASS_IMAGE, FALSE, TRUE, TRUE);
 277
 278         /* non-image files that might be desirable to show */
 279         filter_add_if_missing("xmp", "XMP sidecar", ".xmp", FORMAT_CLASS_META, TRUE, FALSE, TRUE);
 280         filter_add_if_missing("meta", "GQview legacy metadata", GQ_CACHE_EXT_METADATA, FORMAT_CLASS_META, TRUE, FALSE, TRUE);
 281         filter_add_if_missing("gqv", GQ_APPNAME " image collection", GQ_COLLECTION_EXT, FORMAT_CLASS_COLLECTION, FALSE, TRUE, TRUE);
 282         filter_add_if_missing("pto", "Panorama script file", ".pto", FORMAT_CLASS_META, FALSE, FALSE, TRUE);
 283
 284         /* These are the raw camera formats with embedded jpeg/exif.
 285          * (see format-raw.cc and/or exiv2.cc)
 286          */
 287         filter_add_if_missing("arw", "Sony raw format", ".arw;.srf;.sr2", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 288         filter_add_if_missing("crw", "Canon raw format", ".crw;.cr2;.cr3", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 289         filter_add_if_missing("kdc", "Kodak raw format", ".kdc;.dcr;.k25", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 290         filter_add_if_missing("raf", "Fujifilm raw format", ".raf", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 291         filter_add_if_missing("mef", "Mamiya raw format", ".mef;.mos", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 292         filter_add_if_missing("mrw", "Minolta raw format", ".mrw", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 293         filter_add_if_missing("nef", "Nikon raw format", ".nef", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 294         filter_add_if_missing("orf", "Olympus raw format", ".orf", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 295         filter_add_if_missing("pef", "Pentax or Samsung raw format", ".pef", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 296         filter_add_if_missing("dng", "Adobe Digital Negative raw format", ".dng", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 297         filter_add_if_missing("raw", "Panasonic raw format", ".raw", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 298         filter_add_if_missing("r3d", "Red raw format", ".r3d", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 299         filter_add_if_missing("3fr", "Hasselblad raw format", ".3fr", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 300         filter_add_if_missing("erf", "Epson raw format", ".erf", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 301         filter_add_if_missing("srw", "Samsung raw format", ".srw", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 302         filter_add_if_missing("rw2", "Panasonic raw format", ".rw2", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 303
 304         /* video files */
 305         filter_add_if_missing("mp4", "MP4 video file", ".mp4;.m4v;.3gp;.3g2", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 306         filter_add_if_missing("3gp", "3GP video file", ".3gp;.3g2", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 307         filter_add_if_missing("mov", "MOV video file", ".mov;.qt", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 308         filter_add_if_missing("avi", "AVI video file", ".avi", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 309         filter_add_if_missing("mpg", "MPG video file", ".mpg;.mpeg;.mts;.m2ts", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 310         filter_add_if_missing("mkv", "Matroska video file", ".mkv;.webm", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 311         filter_add_if_missing("wmv", "Windows Media Video file", ".wmv;.asf", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 312         filter_add_if_missing("flv", "Flash Video file", ".flv", FORMAT_CLASS_VIDEO, FALSE, FALSE, TRUE);
 313 }
 314
 315 GList *filter_to_list(const gchar *extensions)
 316 {
 317         GList *list = nullptr;
 318         const gchar *p;
 319
 320         if (!extensions) return nullptr;
 321
 322         p = extensions;
 323         while (*p != '\0')
 324                 {
 325                 const gchar *b;
 326                 gchar *ext;
 327                 gint file_class = -1;
 328                 guint l = 0;
 329
 330                 b = p;
 331                 while (*p != '\0' && *p != ';')
 332                         {
 333                         p++;
 334                         l++;
 335                         }
 336
 337                 ext = g_strndup(b, l);
 338
 339                 if (g_ascii_strcasecmp(ext, "%image") == 0) file_class = FORMAT_CLASS_IMAGE;
 340                 else if (g_ascii_strcasecmp(ext, "%raw") == 0) file_class = FORMAT_CLASS_RAWIMAGE;
 341                 else if (g_ascii_strcasecmp(ext, "%meta") == 0) file_class = FORMAT_CLASS_META;
 342                 else if (g_ascii_strcasecmp(ext, "%unknown") == 0) file_class = FORMAT_CLASS_UNKNOWN;
 343
 344                 if (file_class == -1)
 345                         {
 346                         list = g_list_append(list, ext);
 347                         }
 348                 else
 349                         {
 350                         list = g_list_concat(list, string_list_copy(file_class_extension_list[file_class]));
 351                         g_free(ext);
 352                         }
 353
 354                 if (*p == ';') p++;
 355                 }
 356
 357         return list;
 358 }
 359
 360 static gint filter_sort_ext_len_cb(gconstpointer a, gconstpointer b)
 361 {
 362         auto sa = static_cast<const gchar *>(a);
 363         auto sb = static_cast<const gchar *>(b);
 364
 365         gint len_a = strlen(sa);
 366         gint len_b = strlen(sb);
 367
 368         if (len_a > len_b) return -1;
 369         if (len_a < len_b) return 1;
 370         return 0;
 371 }
 372
 373
 374 void filter_rebuild()
 375 {
 376         GList *work;
 377         guint i;
 378
 379         g_list_free_full(extension_list, g_free);
 380         extension_list = nullptr;
 381
 382         g_list_free_full(file_writable_list, g_free);
 383         file_writable_list = nullptr;
 384
 385         g_list_free_full(file_sidecar_list, g_free);
 386         file_sidecar_list = nullptr;
 387
 388         for (i = 0; i < FILE_FORMAT_CLASSES; i++)
 389                 {
 390                 g_list_free_full(file_class_extension_list[i], g_free);
 391                 file_class_extension_list[i] = nullptr;
 392                 }
 393
 394         work = filter_list;
 395         while (work)
 396                 {
 397                 FilterEntry *fe;
 398
 399                 fe = static_cast<FilterEntry *>(work->data);
 400                 work = work->next;
 401
 402                 if (fe->enabled)
 403                         {
 404                         GList *ext;
 405
 406                         ext = filter_to_list(fe->extensions);
 407                         if (ext) extension_list = g_list_concat(extension_list, ext);
 408
 409                         if (fe->file_class < FILE_FORMAT_CLASSES)
 410                                 {
 411                                 ext = filter_to_list(fe->extensions);
 412                                 if (ext) file_class_extension_list[fe->file_class] = g_list_concat(file_class_extension_list[fe->file_class], ext);
 413                                 }
 414                         else
 415                                 {
 416                                 log_printf("WARNING: invalid file class %d\n", fe->file_class);
 417                                 }
 418
 419                         if (fe->writable)
 420                                 {
 421                                 ext = filter_to_list(fe->extensions);
 422                                 if (ext) file_writable_list = g_list_concat(file_writable_list, ext);
 423                                 }
 424
 425                         if (fe->allow_sidecar)
 426                                 {
 427                                 ext = filter_to_list(fe->extensions);
 428                                 if (ext) file_sidecar_list = g_list_concat(file_sidecar_list, ext);
 429                                 }
 430
 431                         }
 432                 }
 433
 434         /* make sure registered_extension_from_path finds the longer match first */
 435         extension_list = g_list_sort(extension_list, filter_sort_ext_len_cb);
 436         sidecar_ext_parse(options->sidecar.ext); /* this must be updated after changed file extensions */
 437 }
 438
 439 /* return the extension part of the name or NULL */
 440 static const gchar *filter_name_find(GList *filter, const gchar *name)
 441 {
 442         GList *work;
 443         guint ln;
 444
 445         ln = strlen(name);
 446         work = filter;
 447         while (work)
 448                 {
 449                 auto filter = static_cast<gchar *>(work->data);
 450                 guint lf = strlen(filter);
 451
 452                 if (ln >= lf)
 453                         {
 454                         /** @FIXME utf8 */
 455                         if (g_ascii_strncasecmp(name + ln - lf, filter, lf) == 0) return name + ln - lf;
 456                         }
 457                 work = work->next;
 458                 }
 459
 460         return nullptr;
 461 }
 462 const gchar *registered_extension_from_path(const gchar *name)
 463 {
 464         return filter_name_find(extension_list, name);
 465 }
 466
 467 gboolean filter_name_exists(const gchar *name)
 468 {
 469         if (!extension_list || options->file_filter.disable) return TRUE;
 470
 471         return !!filter_name_find(extension_list, name);
 472 }
 473
 474 gboolean filter_file_class(const gchar *name, FileFormatClass file_class)
 475 {
 476         if (file_class >= FILE_FORMAT_CLASSES)
 477                 {
 478                 log_printf("WARNING: invalid file class %d\n", file_class);
 479                 return FALSE;
 480                 }
 481
 482         return !!filter_name_find(file_class_extension_list[file_class], name);
 483 }
 484
 485 FileFormatClass filter_file_get_class(const gchar *name)
 486 {
 487         if (filter_file_class(name, FORMAT_CLASS_IMAGE)) return FORMAT_CLASS_IMAGE;
 488         if (filter_file_class(name, FORMAT_CLASS_RAWIMAGE)) return FORMAT_CLASS_RAWIMAGE;
 489         if (filter_file_class(name, FORMAT_CLASS_META)) return FORMAT_CLASS_META;
 490         if (filter_file_class(name, FORMAT_CLASS_VIDEO)) return FORMAT_CLASS_VIDEO;
 491         if (filter_file_class(name, FORMAT_CLASS_COLLECTION)) return FORMAT_CLASS_COLLECTION;
 492         if (filter_file_class(name, FORMAT_CLASS_DOCUMENT)) return FORMAT_CLASS_DOCUMENT;
 493         if (filter_file_class(name, FORMAT_CLASS_ARCHIVE)) return FORMAT_CLASS_ARCHIVE;
 494         return FORMAT_CLASS_UNKNOWN;
 495 }
 496
 497 gboolean filter_name_is_writable(const gchar *name)
 498 {
 499         return !!filter_name_find(file_writable_list, name);
 500 }
 501
 502 gboolean filter_name_allow_sidecar(const gchar *name)
 503 {
 504         return !!filter_name_find(file_sidecar_list, name);
 505 }
 506
 507 void filter_write_list(GString *outstr, gint indent)
 508 {
 509         GList *work;
 510
 511         WRITE_NL(); WRITE_STRING("<filter>");
 512         indent++;
 513
 514         work = filter_list;
 515         while (work)
 516                 {
 517                 auto fe = static_cast<FilterEntry *>(work->data);
 518                 work = work->next;
 519
 520                 WRITE_NL(); WRITE_STRING("<file_type ");
 521                 WRITE_CHAR(*fe, key);
 522                 WRITE_BOOL(*fe, enabled);
 523                 WRITE_CHAR(*fe, extensions);
 524                 WRITE_CHAR(*fe, description);
 525                 WRITE_UINT(*fe, file_class);
 526                 WRITE_BOOL(*fe, writable);
 527                 WRITE_BOOL(*fe, allow_sidecar);
 528                 WRITE_STRING("/>");
 529                 }
 530         indent--;
 531         WRITE_NL(); WRITE_STRING("</filter>");
 532 }
 533
 534 void filter_load_file_type(const gchar **attribute_names, const gchar **attribute_values)
 535 {
 536         FilterEntry fe;
 537         FilterEntry *old_fe;
 538         memset(&fe, 0, sizeof(fe));
 539         while (*attribute_names)
 540                 {
 541                 const gchar *option = *attribute_names++;
 542                 const gchar *value = *attribute_values++;
 543
 544                 if (READ_CHAR(fe, key)) continue;
 545                 if (READ_BOOL(fe, enabled)) continue;
 546                 if (READ_CHAR(fe, extensions)) continue;
 547                 if (READ_CHAR(fe, description)) continue;
 548                 if (READ_UINT_ENUM(fe, file_class)) continue;
 549                 if (READ_BOOL(fe, writable)) continue;
 550                 if (READ_BOOL(fe, allow_sidecar)) continue;
 551
 552                 log_printf("unknown attribute %s = %s\n", option, value);
 553                 }
 554         if (fe.file_class >= FILE_FORMAT_CLASSES) fe.file_class = FORMAT_CLASS_UNKNOWN;
 555
 556         if (fe.key && fe.key[0] != 0)
 557                 {
 558                 old_fe = filter_get_by_key(fe.key);
 559
 560                 if (old_fe != nullptr) filter_remove_entry(old_fe);
 561                 filter_add(fe.key, fe.description, fe.extensions, fe.file_class, fe.writable, fe.allow_sidecar, fe.enabled);
 562                 }
 563         g_free(fe.key);
 564         g_free(fe.extensions);
 565         g_free(fe.description);
 566 }
 567
 568
 569 /*
 570  *-----------------------------------------------------------------------------
 571  * sidecar extension list
 572  *-----------------------------------------------------------------------------
 573  */
 574
 575 GList *sidecar_ext_get_list()
 576 {
 577         return sidecar_ext_list;
 578 }
 579
 580 static void sidecar_ext_free_list()
 581 {
 582         g_list_free_full(sidecar_ext_list, g_free);
 583         sidecar_ext_list = nullptr;
 584 }
 585
 586 void sidecar_ext_parse(const gchar *text)
 587 {
 588         sidecar_ext_free_list();
 589         if (text == nullptr) return;
 590
 591         sidecar_ext_list = filter_to_list(text);
 592 }
 593
 594
 595 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */