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 "main.h"
  23 #include "filefilter.h"
  24
  25 #include "cache.h"
  26 #include "ui-fileops.h"
  27 #include "rcfile.h"
  28
  29 /*
  30  *-----------------------------------------------------------------------------
  31  * file filtering
  32  *-----------------------------------------------------------------------------
  33  */
  34
  35 static GList *filter_list = nullptr;
  36 static GList *extension_list = nullptr;
  37 static GList *sidecar_ext_list = nullptr;
  38
  39 static GList *file_class_extension_list[FILE_FORMAT_CLASSES];
  40
  41 static GList *file_writable_list = nullptr; /* writable files */
  42 static GList *file_sidecar_list = nullptr; /* files with allowed sidecar */
  43
  44
  45 static FilterEntry *filter_entry_new(const gchar *key, const gchar *description,
  46                                      const gchar *extensions, FileFormatClass file_class,
  47                                      gboolean writable, gboolean allow_sidecar, gboolean enabled)
  48 {
  49         FilterEntry *fe;
  50
  51         fe = g_new0(FilterEntry, 1);
  52         fe->key = g_strdup(key);
  53         fe->description = g_strdup(description);
  54         fe->extensions = g_strdup(extensions);
  55         fe->enabled = enabled;
  56         fe->file_class = file_class;
  57         fe->writable = writable;
  58         fe->allow_sidecar = allow_sidecar;
  59
  60         return fe;
  61 }
  62
  63 static void filter_entry_free(FilterEntry *fe)
  64 {
  65         if (!fe) return;
  66
  67         g_free(fe->key);
  68         g_free(fe->description);
  69         g_free(fe->extensions);
  70         g_free(fe);
  71 }
  72
  73 GList *filter_get_list()
  74 {
  75         return filter_list;
  76 }
  77
  78 void filter_remove_entry(FilterEntry *fe)
  79 {
  80         if (!g_list_find(filter_list, fe)) return;
  81
  82         filter_list = g_list_remove(filter_list, fe);
  83         filter_entry_free(fe);
  84 }
  85
  86 static FilterEntry *filter_get_by_key(const gchar *key)
  87 {
  88         GList *work;
  89
  90         if (!key) return nullptr;
  91
  92         work = filter_list;
  93         while (work)
  94                 {
  95                 auto fe = static_cast<FilterEntry *>(work->data);
  96                 work = work->next;
  97
  98                 if (strcmp(fe->key, key) == 0) return fe;
  99                 }
 100
 101         return nullptr;
 102 }
 103
 104 static gboolean filter_key_exists(const gchar *key)
 105 {
 106         return (filter_get_by_key(key) != nullptr);
 107 }
 108
 109 void filter_add(const gchar *key, const gchar *description, const gchar *extensions, FileFormatClass file_class, gboolean writable, gboolean allow_sidecar, gboolean enabled)
 110 {
 111         filter_list = g_list_append(filter_list, filter_entry_new(key, description, extensions, file_class, writable, allow_sidecar, enabled));
 112 }
 113
 114 void filter_add_unique(const gchar *description, const gchar *extensions, FileFormatClass file_class, gboolean writable, gboolean allow_sidecar, gboolean enabled)
 115 {
 116         gchar *key;
 117         guint n;
 118
 119         key = g_strdup("user0");
 120         n = 1;
 121         while (filter_key_exists(key))
 122                 {
 123                 g_free(key);
 124                 if (n > 999) return;
 125                 key = g_strdup_printf("user%d", n);
 126                 n++;
 127                 }
 128
 129         filter_add(key, description, extensions, file_class, writable, allow_sidecar, enabled);
 130         g_free(key);
 131 }
 132
 133 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)
 134 {
 135         GList *work;
 136
 137         if (!key) return;
 138
 139         work = filter_list;
 140         while (work)
 141                 {
 142                 auto fe = static_cast<FilterEntry *>(work->data);
 143                 work = work->next;
 144                 if (fe->key && strcmp(fe->key, key) == 0)
 145                         {
 146                         if (fe->file_class == FORMAT_CLASS_UNKNOWN)
 147                                 fe->file_class = file_class;    /* for compatibility */
 148
 149                         if (fe->writable && fe->allow_sidecar)
 150                                 {
 151                                 fe->writable = writable;
 152                                 fe->allow_sidecar = allow_sidecar;
 153                                 }
 154                         return;
 155                         }
 156                 }
 157
 158         filter_add(key, description, extensions, file_class, writable, allow_sidecar, enabled);
 159 }
 160
 161 void filter_reset()
 162 {
 163         GList *work;
 164
 165         work = filter_list;
 166         while (work)
 167                 {
 168                 auto fe = static_cast<FilterEntry *>(work->data);
 169                 work = work->next;
 170                 filter_entry_free(fe);
 171                 }
 172
 173         g_list_free(filter_list);
 174         filter_list = nullptr;
 175 }
 176
 177 void filter_add_defaults()
 178 {
 179         /* formats supported by custom loaders */
 180         filter_add_if_missing("dds", "DirectDraw Surface", ".dds", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 181 #ifdef HAVE_PDF
 182         filter_add_if_missing("pdf", "Portable Document Format", ".pdf", FORMAT_CLASS_DOCUMENT, FALSE, FALSE, TRUE);
 183 #endif
 184 #ifdef HAVE_HEIF
 185         filter_add_if_missing("heif/avif", "HEIF/AVIF Image", ".heif;.heic;.avif", FORMAT_CLASS_IMAGE, FALSE, TRUE, TRUE);
 186 #endif
 187 #ifdef HAVE_WEBP
 188         filter_add_if_missing("webp", "WebP Format", ".webp", FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
 189 #endif
 190 #ifdef HAVE_DJVU
 191         filter_add_if_missing("djvu", "DjVu Format", ".djvu;.djv", FORMAT_CLASS_DOCUMENT, FALSE, FALSE, TRUE);
 192 #endif
 193 #ifdef HAVE_JPEGXL
 194         filter_add_if_missing("jxl", "JXL", ".jxl", FORMAT_CLASS_IMAGE, FALSE, TRUE, TRUE);
 195 #endif
 196 #ifdef HAVE_J2K
 197         filter_add_if_missing("jp2", "JPEG 2000", ".jp2", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 198 #endif
 199 #ifdef HAVE_ARCHIVE
 200         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);
 201 #endif
 202         filter_add_if_missing("scr", "ZX Spectrum screen Format", ".scr", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 203         filter_add_if_missing("psd", "Adobe Photoshop Document", ".psd", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 204         filter_add_if_missing("apng", "Animated Portable Network Graphic", ".apng", FORMAT_CLASS_IMAGE, FALSE, FALSE, TRUE);
 205
 206         /* formats supported by gdk-pixbuf */
 207         GSList *list, *work;
 208
 209         list = gdk_pixbuf_get_formats();
 210         work = list;
 211         while (work)
 212                 {
 213                 GdkPixbufFormat *format;
 214                 gchar *name;
 215                 gchar *desc;
 216                 gchar **extensions;
 217                 GString *filter = nullptr;
 218                 guint i;
 219
 220                 format = static_cast<GdkPixbufFormat *>(work->data);
 221                 work = work->next;
 222
 223                 name = gdk_pixbuf_format_get_name(format);
 224
 225                 if (strcmp(name, "Digital camera RAW") == 0)
 226                         {
 227                         DEBUG_1("Skipped '%s' from loader", name);
 228                         g_free(name);
 229                         continue;
 230                         }
 231
 232                 desc = gdk_pixbuf_format_get_description(format);
 233                 extensions = gdk_pixbuf_format_get_extensions(format);
 234
 235                 i = 0;
 236                 while (extensions[i])
 237                         {
 238                         if (!filter)
 239                                 {
 240                                 filter = g_string_new(".");
 241                                 filter = g_string_append(filter, extensions[i]);
 242                                 }
 243                         else
 244                                 {
 245                                 filter = g_string_append(filter, ";.");
 246                                 filter = g_string_append(filter, extensions[i]);
 247                                 }
 248                         i++;
 249                         }
 250
 251                 DEBUG_1("loader reported [%s] [%s] [%s]", name, desc, filter->str);
 252
 253                 filter_add_if_missing(name, desc, filter->str, FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
 254
 255                 g_free(name);
 256                 g_free(desc);
 257                 g_strfreev(extensions);
 258                 g_string_free(filter, TRUE);
 259                 }
 260         g_slist_free(list);
 261
 262         /* add defaults even if gdk-pixbuf does not have them, but disabled */
 263         filter_add_if_missing("jpeg", "JPEG group", ".jpg;.jpeg;.jpe", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 264         filter_add_if_missing("png", "Portable Network Graphic", ".png", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 265         filter_add_if_missing("tiff", "Tiff", ".tif;.tiff", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 266         filter_add_if_missing("pnm", "Packed Pixel formats", ".pbm;.pgm;.pnm;.ppm", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 267         filter_add_if_missing("gif", "Graphics Interchange Format", ".gif", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 268         filter_add_if_missing("xbm", "X bitmap", ".xbm", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 269         filter_add_if_missing("xpm", "X pixmap", ".xpm", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 270         filter_add_if_missing("bmp", "Bitmap", ".bmp", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 271         filter_add_if_missing("ico", "Icon file", ".ico;.cur", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 272         filter_add_if_missing("ras", "Raster", ".ras", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 273         filter_add_if_missing("svg", "Scalable Vector Graphics", ".svg", FORMAT_CLASS_IMAGE, TRUE, FALSE, FALSE);
 274
 275         /* special formats for stereo */
 276         filter_add_if_missing("jps", "Stereo side-by-side jpeg", ".jps", FORMAT_CLASS_IMAGE, TRUE, FALSE, TRUE);
 277         filter_add_if_missing("mpo", "Stereo multi-image jpeg", ".mpo", FORMAT_CLASS_IMAGE, FALSE, TRUE, TRUE);
 278
 279         /* non-image files that might be desirable to show */
 280         filter_add_if_missing("xmp", "XMP sidecar", ".xmp", FORMAT_CLASS_META, TRUE, FALSE, TRUE);
 281         filter_add_if_missing("meta", "GQview legacy metadata", GQ_CACHE_EXT_METADATA, FORMAT_CLASS_META, TRUE, FALSE, TRUE);
 282         filter_add_if_missing("gqv", GQ_APPNAME " image collection", GQ_COLLECTION_EXT, FORMAT_CLASS_COLLECTION, FALSE, TRUE, TRUE);
 283         filter_add_if_missing("pto", "Panorama script file", ".pto", FORMAT_CLASS_META, FALSE, FALSE, TRUE);
 284
 285         /* These are the raw camera formats with embedded jpeg/exif.
 286          * (see format-raw.cc and/or exiv2.cc)
 287          */
 288         filter_add_if_missing("arw", "Sony raw format", ".arw;.srf;.sr2", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 289         filter_add_if_missing("crw", "Canon raw format", ".crw;.cr2;.cr3", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 290         filter_add_if_missing("kdc", "Kodak raw format", ".kdc;.dcr;.k25", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 291         filter_add_if_missing("raf", "Fujifilm raw format", ".raf", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 292         filter_add_if_missing("mef", "Mamiya raw format", ".mef;.mos", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 293         filter_add_if_missing("mrw", "Minolta raw format", ".mrw", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 294         filter_add_if_missing("nef", "Nikon raw format", ".nef", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 295         filter_add_if_missing("orf", "Olympus raw format", ".orf", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 296         filter_add_if_missing("pef", "Pentax or Samsung raw format", ".pef;.ptx", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 297         filter_add_if_missing("dng", "Adobe Digital Negative raw format", ".dng", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 298         filter_add_if_missing("x3f", "Sigma raw format", ".x3f", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 299         filter_add_if_missing("raw", "Panasonic raw format", ".raw", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 300         filter_add_if_missing("r3d", "Red raw format", ".r3d", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 301         filter_add_if_missing("3fr", "Hasselblad raw format", ".3fr", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 302         filter_add_if_missing("erf", "Epson raw format", ".erf", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 303         filter_add_if_missing("srw", "Samsung raw format", ".srw", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 304         filter_add_if_missing("rw2", "Panasonic raw format", ".rw2", FORMAT_CLASS_RAWIMAGE, FALSE, TRUE, TRUE);
 305
 306         /* video files */
 307         filter_add_if_missing("mp4", "MP4 video file", ".mp4;.m4v;.3gp;.3g2", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 308         filter_add_if_missing("3gp", "3GP video file", ".3gp;.3g2", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 309         filter_add_if_missing("mov", "MOV video file", ".mov;.qt", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 310         filter_add_if_missing("avi", "AVI video file", ".avi", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 311         filter_add_if_missing("mpg", "MPG video file", ".mpg;.mpeg;.mts;.m2ts", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 312         filter_add_if_missing("mkv", "Matroska video file", ".mkv;.webm", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 313         filter_add_if_missing("wmv", "Windows Media Video file", ".wmv;.asf", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 314         filter_add_if_missing("flv", "Flash Video file", ".flv", FORMAT_CLASS_VIDEO, FALSE, FALSE, FALSE);
 315 }
 316
 317 GList *filter_to_list(const gchar *extensions)
 318 {
 319         GList *list = nullptr;
 320         const gchar *p;
 321
 322         if (!extensions) return nullptr;
 323
 324         p = extensions;
 325         while (*p != '\0')
 326                 {
 327                 const gchar *b;
 328                 gchar *ext;
 329                 gint file_class = -1;
 330                 guint l = 0;
 331
 332                 b = p;
 333                 while (*p != '\0' && *p != ';')
 334                         {
 335                         p++;
 336                         l++;
 337                         }
 338
 339                 ext = g_strndup(b, l);
 340
 341                 if (g_ascii_strcasecmp(ext, "%image") == 0) file_class = FORMAT_CLASS_IMAGE;
 342                 else if (g_ascii_strcasecmp(ext, "%raw") == 0) file_class = FORMAT_CLASS_RAWIMAGE;
 343                 else if (g_ascii_strcasecmp(ext, "%meta") == 0) file_class = FORMAT_CLASS_META;
 344                 else if (g_ascii_strcasecmp(ext, "%unknown") == 0) file_class = FORMAT_CLASS_UNKNOWN;
 345
 346                 if (file_class == -1)
 347                         {
 348                         list = g_list_append(list, ext);
 349                         }
 350                 else
 351                         {
 352                         list = g_list_concat(list, string_list_copy(file_class_extension_list[file_class]));
 353                         g_free(ext);
 354                         }
 355
 356                 if (*p == ';') p++;
 357                 }
 358
 359         return list;
 360 }
 361
 362 static gint filter_sort_ext_len_cb(gconstpointer a, gconstpointer b)
 363 {
 364         auto sa = static_cast<const gchar *>(a);
 365         auto sb = static_cast<const gchar *>(b);
 366
 367         gint len_a = strlen(sa);
 368         gint len_b = strlen(sb);
 369
 370         if (len_a > len_b) return -1;
 371         if (len_a < len_b) return 1;
 372         return 0;
 373 }
 374
 375
 376 void filter_rebuild()
 377 {
 378         GList *work;
 379         guint i;
 380
 381         string_list_free(extension_list);
 382         extension_list = nullptr;
 383
 384         string_list_free(file_writable_list);
 385         file_writable_list = nullptr;
 386
 387         string_list_free(file_sidecar_list);
 388         file_sidecar_list = nullptr;
 389
 390         for (i = 0; i < FILE_FORMAT_CLASSES; i++)
 391                 {
 392                 string_list_free(file_class_extension_list[i]);
 393                 file_class_extension_list[i] = nullptr;
 394                 }
 395
 396         work = filter_list;
 397         while (work)
 398                 {
 399                 FilterEntry *fe;
 400
 401                 fe = static_cast<FilterEntry *>(work->data);
 402                 work = work->next;
 403
 404                 if (fe->enabled)
 405                         {
 406                         GList *ext;
 407
 408                         ext = filter_to_list(fe->extensions);
 409                         if (ext) extension_list = g_list_concat(extension_list, ext);
 410
 411                         if (fe->file_class < FILE_FORMAT_CLASSES)
 412                                 {
 413                                 ext = filter_to_list(fe->extensions);
 414                                 if (ext) file_class_extension_list[fe->file_class] = g_list_concat(file_class_extension_list[fe->file_class], ext);
 415                                 }
 416                         else
 417                                 {
 418                                 log_printf("WARNING: invalid file class %d\n", fe->file_class);
 419                                 }
 420
 421                         if (fe->writable)
 422                                 {
 423                                 ext = filter_to_list(fe->extensions);
 424                                 if (ext) file_writable_list = g_list_concat(file_writable_list, ext);
 425                                 }
 426
 427                         if (fe->allow_sidecar)
 428                                 {
 429                                 ext = filter_to_list(fe->extensions);
 430                                 if (ext) file_sidecar_list = g_list_concat(file_sidecar_list, ext);
 431                                 }
 432
 433                         }
 434                 }
 435
 436         /* make sure registered_extension_from_path finds the longer match first */
 437         extension_list = g_list_sort(extension_list, filter_sort_ext_len_cb);
 438         sidecar_ext_parse(options->sidecar.ext); /* this must be updated after changed file extensions */
 439 }
 440
 441 /* return the extension part of the name or NULL */
 442 static const gchar *filter_name_find(GList *filter, const gchar *name)
 443 {
 444         GList *work;
 445         guint ln;
 446
 447         ln = strlen(name);
 448         work = filter;
 449         while (work)
 450                 {
 451                 auto filter = static_cast<gchar *>(work->data);
 452                 guint lf = strlen(filter);
 453
 454                 if (ln >= lf)
 455                         {
 456                         /** @FIXME utf8 */
 457                         if (g_ascii_strncasecmp(name + ln - lf, filter, lf) == 0) return name + ln - lf;
 458                         }
 459                 work = work->next;
 460                 }
 461
 462         return nullptr;
 463 }
 464 const gchar *registered_extension_from_path(const gchar *name)
 465 {
 466         return filter_name_find(extension_list, name);
 467 }
 468
 469 gboolean filter_name_exists(const gchar *name)
 470 {
 471         if (!extension_list || options->file_filter.disable) return TRUE;
 472
 473         return !!filter_name_find(extension_list, name);
 474 }
 475
 476 gboolean filter_file_class(const gchar *name, FileFormatClass file_class)
 477 {
 478         if (file_class >= FILE_FORMAT_CLASSES)
 479                 {
 480                 log_printf("WARNING: invalid file class %d\n", file_class);
 481                 return FALSE;
 482                 }
 483
 484         return !!filter_name_find(file_class_extension_list[file_class], name);
 485 }
 486
 487 FileFormatClass filter_file_get_class(const gchar *name)
 488 {
 489         if (filter_file_class(name, FORMAT_CLASS_IMAGE)) return FORMAT_CLASS_IMAGE;
 490         if (filter_file_class(name, FORMAT_CLASS_RAWIMAGE)) return FORMAT_CLASS_RAWIMAGE;
 491         if (filter_file_class(name, FORMAT_CLASS_META)) return FORMAT_CLASS_META;
 492         if (filter_file_class(name, FORMAT_CLASS_VIDEO)) return FORMAT_CLASS_VIDEO;
 493         if (filter_file_class(name, FORMAT_CLASS_COLLECTION)) return FORMAT_CLASS_COLLECTION;
 494         if (filter_file_class(name, FORMAT_CLASS_DOCUMENT)) return FORMAT_CLASS_DOCUMENT;
 495         if (filter_file_class(name, FORMAT_CLASS_ARCHIVE)) return FORMAT_CLASS_ARCHIVE;
 496         return FORMAT_CLASS_UNKNOWN;
 497 }
 498
 499 gboolean filter_name_is_writable(const gchar *name)
 500 {
 501         return !!filter_name_find(file_writable_list, name);
 502 }
 503
 504 gboolean filter_name_allow_sidecar(const gchar *name)
 505 {
 506         return !!filter_name_find(file_sidecar_list, name);
 507 }
 508
 509 void filter_write_list(GString *outstr, gint indent)
 510 {
 511         GList *work;
 512
 513         WRITE_NL(); WRITE_STRING("<filter>");
 514         indent++;
 515
 516         work = filter_list;
 517         while (work)
 518                 {
 519                 auto fe = static_cast<FilterEntry *>(work->data);
 520                 work = work->next;
 521
 522                 WRITE_NL(); WRITE_STRING("<file_type ");
 523                 WRITE_CHAR(*fe, key);
 524                 WRITE_BOOL(*fe, enabled);
 525                 WRITE_CHAR(*fe, extensions);
 526                 WRITE_CHAR(*fe, description);
 527                 WRITE_UINT(*fe, file_class);
 528                 WRITE_BOOL(*fe, writable);
 529                 WRITE_BOOL(*fe, allow_sidecar);
 530                 WRITE_STRING("/>");
 531                 }
 532         indent--;
 533         WRITE_NL(); WRITE_STRING("</filter>");
 534 }
 535
 536 void filter_load_file_type(const gchar **attribute_names, const gchar **attribute_values)
 537 {
 538         FilterEntry fe;
 539         FilterEntry *old_fe;
 540         memset(&fe, 0, sizeof(fe));
 541         while (*attribute_names)
 542                 {
 543                 const gchar *option = *attribute_names++;
 544                 const gchar *value = *attribute_values++;
 545
 546                 if (READ_CHAR(fe, key)) continue;
 547                 if (READ_BOOL(fe, enabled)) continue;
 548                 if (READ_CHAR(fe, extensions)) continue;
 549                 if (READ_CHAR(fe, description)) continue;
 550                 if (READ_UINT_ENUM(fe, file_class)) continue;
 551                 if (READ_BOOL(fe, writable)) continue;
 552                 if (READ_BOOL(fe, allow_sidecar)) continue;
 553
 554                 log_printf("unknown attribute %s = %s\n", option, value);
 555                 }
 556         if (fe.file_class >= FILE_FORMAT_CLASSES) fe.file_class = FORMAT_CLASS_UNKNOWN;
 557
 558         if (fe.key && fe.key[0] != 0)
 559                 {
 560                 old_fe = filter_get_by_key(fe.key);
 561
 562                 if (old_fe != nullptr) filter_remove_entry(old_fe);
 563                 filter_add(fe.key, fe.description, fe.extensions, fe.file_class, fe.writable, fe.allow_sidecar, fe.enabled);
 564                 }
 565         g_free(fe.key);
 566         g_free(fe.extensions);
 567         g_free(fe.description);
 568 }
 569
 570
 571 /*
 572  *-----------------------------------------------------------------------------
 573  * sidecar extension list
 574  *-----------------------------------------------------------------------------
 575  */
 576
 577 GList *sidecar_ext_get_list()
 578 {
 579         return sidecar_ext_list;
 580 }
 581
 582 static void sidecar_ext_free_list()
 583 {
 584         GList *work;
 585
 586         work = sidecar_ext_list;
 587         while (work)
 588                 {
 589                 auto ext = static_cast<gchar *>(work->data);
 590                 work = work->next;
 591                 g_free(ext);
 592                 }
 593         g_list_free(sidecar_ext_list);
 594         sidecar_ext_list = nullptr;
 595 }
 596
 597 void sidecar_ext_parse(const gchar *text)
 598 {
 599         sidecar_ext_free_list();
 600         if (text == nullptr) return;
 601
 602         sidecar_ext_list = filter_to_list(text);
 603 }
 604
 605
 606 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */