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