granicus.if.org Git - imagemagick/blob - MagickWand/identify.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %           IIIII  DDDD   EEEEE  N   N  TTTTT  IIIII  FFFFF  Y   Y            %
   7 %             I    D   D  E      NN  N    T      I    F       Y Y             %
   8 %             I    D   D  EEE    N N N    T      I    FFF      Y              %
   9 %             I    D   D  E      N  NN    T      I    F        Y              %
  10 %           IIIII  DDDD   EEEEE  N   N    T    IIIII  F        Y              %
  11 %                                                                             %
  12 %                                                                             %
  13 %               Identify an Image Format and Characteristics.                 %
  14 %                                                                             %
  15 %                           Software Design                                   %
  16 %                             John Cristy                                     %
  17 %                            September 1994                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 %  The identify program describes the format and characteristics of one or more
  37 %  image files. It also reports if an image is incomplete or corrupt. The
  38 %  information returned includes the image number, the file name, the width and
  39 %  height of the image, whether the image is colormapped or not, the number of
  40 %  colors in the image, the number of bytes in the image, the format of the
  41 %  image (JPEG, PNM, etc.), and finally the number of seconds it took to read
  42 %  and process the image. Many more attributes are available with the verbose
  43 %  option.
  44 %
  45 */
  46 \f
  47 /*
  48   Include declarations.
  49 */
  50 #include "MagickWand/studio.h"
  51 #include "MagickWand/MagickWand.h"
  52 #include "MagickWand/mogrify-private.h"
  53 #include "MagickCore/string-private.h"
  54 \f
  55 /*
  56 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  57 %                                                                             %
  58 %                                                                             %
  59 %                                                                             %
  60 +   I d e n t i f y I m a g e C o m m a n d                                   %
  61 %                                                                             %
  62 %                                                                             %
  63 %                                                                             %
  64 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  65 %
  66 %  IdentifyImageCommand() describes the format and characteristics of one or
  67 %  more image files. It will also report if an image is incomplete or corrupt.
  68 %  The information displayed includes the scene number, the file name, the
  69 %  width and height of the image, whether the image is colormapped or not,
  70 %  the number of colors in the image, the number of bytes in the image, the
  71 %  format of the image (JPEG, PNM, etc.), and finally the number of seconds
  72 %  it took to read and process the image.
  73 %
  74 %  The format of the IdentifyImageCommand method is:
  75 %
  76 %      MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,int argc,
  77 %        char **argv,char **metadata,ExceptionInfo *exception)
  78 %
  79 %  A description of each parameter follows:
  80 %
  81 %    o image_info: the image info.
  82 %
  83 %    o argc: the number of elements in the argument vector.
  84 %
  85 %    o argv: A text array containing the command line arguments.
  86 %
  87 %    o metadata: any metadata is returned here.
  88 %
  89 %    o exception: return any errors or warnings in this structure.
  90 %
  91 */
  92
  93 static MagickBooleanType IdentifyUsage(void)
  94 {
  95   const char
  96     **p;
  97
  98   static const char
  99     *miscellaneous[]=
 100     {
 101       "-debug events        display copious debugging information",
 102       "-help                print program options",
 103       "-list type           print a list of supported option arguments",
 104       "-log format          format of debugging information",
 105       "-version             print version information",
 106       (char *) NULL
 107     },
 108     *operators[]=
 109     {
 110       "-grayscale method    convert image to grayscale",
 111       "-negate              replace every pixel with its complementary color ",
 112       (char *) NULL
 113     },
 114     *settings[]=
 115     {
 116       "-alpha option        on, activate, off, deactivate, set, opaque, copy",
 117       "                     transparent, extract, background, or shape",
 118       "-antialias           remove pixel-aliasing",
 119       "-authenticate password",
 120       "                     decipher image with this password",
 121       "-channel type        apply option to select image channels",
 122       "-clip                clip along the first path from the 8BIM profile",
 123       "-clip-mask filename  associate a clip mask with the image",
 124       "-clip-path id        clip along a named path from the 8BIM profile",
 125       "-colorspace type     alternate image colorspace",
 126       "-crop geometry       cut out a rectangular region of the image",
 127       "-define format:option",
 128       "                     define one or more image format options",
 129       "-density geometry    horizontal and vertical density of the image",
 130       "-depth value         image depth",
 131       "-endian type         endianness (MSB or LSB) of the image",
 132       "-extract geometry    extract area from image",
 133       "-features distance   analyze image features (e.g. contrast, correlation)",
 134       "-format \"string\"     output formatted image characteristics",
 135       "-fuzz distance       colors within this distance are considered equal",
 136       "-gamma value         of gamma correction",
 137       "-interlace type      type of image interlacing scheme",
 138       "-interpolate method  pixel color interpolation method",
 139       "-limit type value    pixel cache resource limit",
 140       "-mask filename       associate a mask with the image",
 141       "-matte               store matte channel if the image has one",
 142       "-monitor             monitor progress",
 143       "-ping                efficiently determine image attributes",
 144       "-precision value     maximum number of significant digits to print",
 145       "-quiet               suppress all warning messages",
 146       "-regard-warnings     pay attention to warning messages",
 147       "-respect-parentheses settings remain in effect until parenthesis boundary",
 148       "-sampling-factor geometry",
 149       "                     horizontal and vertical sampling factor",
 150       "-seed value          seed a new sequence of pseudo-random numbers",
 151       "-set attribute value set an image attribute",
 152       "-size geometry       width and height of image",
 153       "-strip               strip image of all profiles and comments",
 154       "-unique              display the number of unique colors in the image",
 155       "-units type          the units of image resolution",
 156       "-verbose             print detailed information about the image",
 157       "-virtual-pixel method",
 158       "                     virtual pixel access method",
 159       (char *) NULL
 160     };
 161
 162   ListMagickVersion(stdout);
 163   (void) printf("Usage: %s [options ...] file [ [options ...] "
 164     "file ... ]\n",GetClientName());
 165   (void) printf("\nImage Settings:\n");
 166   for (p=settings; *p != (char *) NULL; p++)
 167     (void) printf("  %s\n",*p);
 168   (void) printf("\nImage Operators:\n");
 169   for (p=operators; *p != (char *) NULL; p++)
 170     (void) printf("  %s\n",*p);
 171   (void) printf("\nMiscellaneous Options:\n");
 172   for (p=miscellaneous; *p != (char *) NULL; p++)
 173     (void) printf("  %s\n",*p);
 174   (void) printf(
 175     "\nBy default, the image format of 'file' is determined by its magic\n");
 176   (void) printf(
 177     "number.  To specify a particular image format, precede the filename\n");
 178   (void) printf(
 179     "with an image format name and a colon (i.e. ps:image) or specify the\n");
 180   (void) printf(
 181     "image type as the filename suffix (i.e. image.ps).  Specify 'file' as\n");
 182   (void) printf("'-' for standard input or output.\n");
 183   return(MagickFalse);
 184 }
 185
 186 WandExport MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,
 187   int argc,char **argv,char **metadata,ExceptionInfo *exception)
 188 {
 189 #define DestroyIdentify() \
 190 { \
 191   DestroyImageStack(); \
 192   for (i=0; i < (ssize_t) argc; i++) \
 193     argv[i]=DestroyString(argv[i]); \
 194   argv=(char **) RelinquishMagickMemory(argv); \
 195 }
 196 #define ThrowIdentifyException(asperity,tag,option) \
 197 { \
 198   (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"`%s'", \
 199     option); \
 200   DestroyIdentify(); \
 201   return(MagickFalse); \
 202 }
 203 #define ThrowIdentifyInvalidArgumentException(option,argument) \
 204 { \
 205   (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
 206     "InvalidArgument","'%s': %s",option,argument); \
 207   DestroyIdentify(); \
 208   return(MagickFalse); \
 209 }
 210
 211   const char
 212     *format,
 213     *option;
 214
 215   Image
 216     *image;
 217
 218   ImageStack
 219     image_stack[MaxImageStackDepth+1];
 220
 221   MagickBooleanType
 222     fire,
 223     pend,
 224     respect_parenthesis;
 225
 226   MagickStatusType
 227     status;
 228
 229   register ssize_t
 230     i;
 231
 232   size_t
 233     count;
 234
 235   ssize_t
 236     j,
 237     k;
 238
 239   /*
 240     Set defaults.
 241   */
 242   assert(image_info != (ImageInfo *) NULL);
 243   assert(image_info->signature == MagickSignature);
 244   if (image_info->debug != MagickFalse)
 245     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
 246   assert(exception != (ExceptionInfo *) NULL);
 247   if (argc == 2)
 248     {
 249       option=argv[1];
 250       if ((LocaleCompare("version",option+1) == 0) ||
 251           (LocaleCompare("-version",option+1) == 0))
 252         {
 253           ListMagickVersion(stdout);
 254           return(MagickFalse);
 255         }
 256     }
 257   if (argc < 2)
 258     return(IdentifyUsage());
 259   count=0;
 260   format=NULL;
 261   j=1;
 262   k=0;
 263   NewImageStack();
 264   option=(char *) NULL;
 265   pend=MagickFalse;
 266   respect_parenthesis=MagickFalse;
 267   status=MagickTrue;
 268   /*
 269     Identify an image.
 270   */
 271   ReadCommandlLine(argc,&argv);
 272   status=ExpandFilenames(&argc,&argv);
 273   if (status == MagickFalse)
 274     ThrowIdentifyException(ResourceLimitError,"MemoryAllocationFailed",
 275       GetExceptionMessage(errno));
 276   image_info->ping=MagickTrue;
 277   for (i=1; i < (ssize_t) argc; i++)
 278   {
 279     option=argv[i];
 280     if (LocaleCompare(option,"(") == 0)
 281       {
 282         FireImageStack(MagickFalse,MagickTrue,pend);
 283         if (k == MaxImageStackDepth)
 284           ThrowIdentifyException(OptionError,"ParenthesisNestedTooDeeply",
 285             option);
 286         PushImageStack();
 287         continue;
 288       }
 289     if (LocaleCompare(option,")") == 0)
 290       {
 291         FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 292         if (k == 0)
 293           ThrowIdentifyException(OptionError,"UnableToParseExpression",option);
 294         PopImageStack();
 295         continue;
 296       }
 297     if (IsCommandOption(option) == MagickFalse)
 298       {
 299         char
 300           *filename;
 301
 302         Image
 303           *images;
 304
 305         ImageInfo
 306           *identify_info;
 307
 308         /*
 309           Read input image.
 310         */
 311         FireImageStack(MagickFalse,MagickFalse,pend);
 312         identify_info=CloneImageInfo(image_info);
 313         identify_info->verbose=MagickFalse;
 314         filename=argv[i];
 315         if ((LocaleCompare(filename,"--") == 0) && (i < (ssize_t) (argc-1)))
 316           filename=argv[++i];
 317         if (identify_info->ping != MagickFalse)
 318           images=PingImages(identify_info,filename,exception);
 319         else
 320           images=ReadImages(identify_info,filename,exception);
 321         identify_info=DestroyImageInfo(identify_info);
 322         status&=(images != (Image *) NULL) &&
 323           (exception->severity < ErrorException);
 324         if (images == (Image *) NULL)
 325           continue;
 326         AppendImageStack(images);
 327         FinalizeImageSettings(image_info,image,MagickFalse);
 328         for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
 329         {
 330           if (image->scene == 0)
 331             image->scene=count++;
 332           if (format == (char *) NULL)
 333             {
 334               (void) IdentifyImage(image,stdout,image_info->verbose,exception);
 335               continue;
 336             }
 337           if (metadata != (char **) NULL)
 338             {
 339               char
 340                 *text;
 341
 342               text=InterpretImageProperties(image_info,image,format,exception);
 343               if (text == (char *) NULL)
 344                 ThrowIdentifyException(ResourceLimitError,
 345                   "MemoryAllocationFailed",GetExceptionMessage(errno));
 346               (void) ConcatenateString(&(*metadata),text);
 347               text=DestroyString(text);
 348               if (LocaleCompare(format,"%n") == 0)
 349                 break;
 350             }
 351         }
 352         RemoveAllImageStack();
 353         continue;
 354       }
 355     pend=image != (Image *) NULL ? MagickTrue : MagickFalse;
 356     switch (*(option+1))
 357     {
 358       case 'a':
 359       {
 360         if (LocaleCompare("alpha",option+1) == 0)
 361           {
 362             ssize_t
 363               type;
 364
 365             if (*option == '+')
 366               break;
 367             i++;
 368             if (i == (ssize_t) argc)
 369               ThrowIdentifyException(OptionError,"MissingArgument",option);
 370             type=ParseCommandOption(MagickAlphaChannelOptions,MagickFalse,
 371               argv[i]);
 372             if (type < 0)
 373               ThrowIdentifyException(OptionError,
 374                 "UnrecognizedAlphaChannelOption",argv[i]);
 375             break;
 376           }
 377         if (LocaleCompare("antialias",option+1) == 0)
 378           break;
 379         if (LocaleCompare("authenticate",option+1) == 0)
 380           {
 381             if (*option == '+')
 382               break;
 383             i++;
 384             if (i == (ssize_t) (argc-1))
 385               ThrowIdentifyException(OptionError,"MissingArgument",option);
 386             break;
 387           }
 388         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 389       }
 390       case 'c':
 391       {
 392         if (LocaleCompare("cache",option+1) == 0)
 393           {
 394             if (*option == '+')
 395               break;
 396             i++;
 397             if (i == (ssize_t) argc)
 398               ThrowIdentifyException(OptionError,"MissingArgument",option);
 399             if (IsGeometry(argv[i]) == MagickFalse)
 400               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 401             break;
 402           }
 403         if (LocaleCompare("channel",option+1) == 0)
 404           {
 405             ssize_t
 406               channel;
 407
 408             if (*option == '+')
 409               break;
 410             i++;
 411             if (i == (ssize_t) (argc-1))
 412               ThrowIdentifyException(OptionError,"MissingArgument",option);
 413             channel=ParseChannelOption(argv[i]);
 414             if (channel < 0)
 415               ThrowIdentifyException(OptionError,"UnrecognizedChannelType",
 416                 argv[i]);
 417             break;
 418           }
 419         if (LocaleCompare("clip",option+1) == 0)
 420           break;
 421         if (LocaleCompare("clip-mask",option+1) == 0)
 422           {
 423             if (*option == '+')
 424               break;
 425             i++;
 426             if (i == (ssize_t) (argc-1))
 427               ThrowIdentifyException(OptionError,"MissingArgument",option);
 428             break;
 429           }
 430         if (LocaleCompare("clip-path",option+1) == 0)
 431           {
 432             i++;
 433             if (i == (ssize_t) (argc-1))
 434               ThrowIdentifyException(OptionError,"MissingArgument",option);
 435             break;
 436           }
 437         if (LocaleCompare("colorspace",option+1) == 0)
 438           {
 439             ssize_t
 440               colorspace;
 441
 442             if (*option == '+')
 443               break;
 444             i++;
 445             if (i == (ssize_t) (argc-1))
 446               ThrowIdentifyException(OptionError,"MissingArgument",option);
 447             colorspace=ParseCommandOption(MagickColorspaceOptions,
 448               MagickFalse,argv[i]);
 449             if (colorspace < 0)
 450               ThrowIdentifyException(OptionError,"UnrecognizedColorspace",
 451                 argv[i]);
 452             break;
 453           }
 454         if (LocaleCompare("crop",option+1) == 0)
 455           {
 456             if (*option == '+')
 457               break;
 458             i++;
 459             if (i == (ssize_t) (argc-1))
 460               ThrowIdentifyException(OptionError,"MissingArgument",option);
 461             if (IsGeometry(argv[i]) == MagickFalse)
 462               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 463             image_info->ping=MagickFalse;
 464             break;
 465           }
 466         if (LocaleCompare("concurrent",option+1) == 0)
 467           break;
 468         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 469       }
 470       case 'd':
 471       {
 472         if (LocaleCompare("debug",option+1) == 0)
 473           {
 474             ssize_t
 475               event;
 476
 477             if (*option == '+')
 478               break;
 479             i++;
 480             if (i == (ssize_t) argc)
 481               ThrowIdentifyException(OptionError,"MissingArgument",option);
 482             event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
 483             if (event < 0)
 484               ThrowIdentifyException(OptionError,"UnrecognizedEventType",
 485                 argv[i]);
 486             (void) SetLogEventMask(argv[i]);
 487             break;
 488           }
 489         if (LocaleCompare("define",option+1) == 0)
 490           {
 491             i++;
 492             if (i == (ssize_t) argc)
 493               ThrowIdentifyException(OptionError,"MissingArgument",option);
 494             if (*option == '+')
 495               {
 496                 const char
 497                   *define;
 498
 499                 define=GetImageOption(image_info,argv[i]);
 500                 if (define == (const char *) NULL)
 501                   ThrowIdentifyException(OptionError,"NoSuchOption",argv[i]);
 502                 break;
 503               }
 504             if (LocaleNCompare("identify:locate",argv[i],14) == 0)
 505               image_info->ping=MagickFalse;
 506             break;
 507           }
 508         if (LocaleCompare("density",option+1) == 0)
 509           {
 510             if (*option == '+')
 511               break;
 512             i++;
 513             if (i == (ssize_t) argc)
 514               ThrowIdentifyException(OptionError,"MissingArgument",option);
 515             if (IsGeometry(argv[i]) == MagickFalse)
 516               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 517             break;
 518           }
 519         if (LocaleCompare("depth",option+1) == 0)
 520           {
 521             if (*option == '+')
 522               break;
 523             i++;
 524             if (i == (ssize_t) argc)
 525               ThrowIdentifyException(OptionError,"MissingArgument",option);
 526             if (IsGeometry(argv[i]) == MagickFalse)
 527               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 528             break;
 529           }
 530         if (LocaleCompare("duration",option+1) == 0)
 531           {
 532             if (*option == '+')
 533               break;
 534             i++;
 535             if (i == (ssize_t) (argc-1))
 536               ThrowIdentifyException(OptionError,"MissingArgument",option);
 537             if (IsGeometry(argv[i]) == MagickFalse)
 538               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 539             break;
 540           }
 541         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 542       }
 543       case 'e':
 544       {
 545         if (LocaleCompare("endian",option+1) == 0)
 546           {
 547             ssize_t
 548               endian;
 549
 550             if (*option == '+')
 551               break;
 552             i++;
 553             if (i == (ssize_t) (argc-1))
 554               ThrowIdentifyException(OptionError,"MissingArgument",option);
 555             endian=ParseCommandOption(MagickEndianOptions,MagickFalse,
 556               argv[i]);
 557             if (endian < 0)
 558               ThrowIdentifyException(OptionError,"UnrecognizedEndianType",
 559                 argv[i]);
 560             break;
 561           }
 562         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 563       }
 564       case 'f':
 565       {
 566         if (LocaleCompare("features",option+1) == 0)
 567           {
 568             if (*option == '+')
 569               break;
 570             i++;
 571             if (i == (ssize_t) (argc-1))
 572               ThrowIdentifyException(OptionError,"MissingArgument",option);
 573             if (IsGeometry(argv[i]) == MagickFalse)
 574               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 575             break;
 576           }
 577         if (LocaleCompare("format",option+1) == 0)
 578           {
 579             format=(char *) NULL;
 580             if (*option == '+')
 581               break;
 582             i++;
 583             if (i == (ssize_t) argc)
 584               ThrowIdentifyException(OptionError,"MissingArgument",option);
 585             format=argv[i];
 586             break;
 587           }
 588         if (LocaleCompare("fuzz",option+1) == 0)
 589           {
 590             if (*option == '+')
 591               break;
 592             i++;
 593             if (i == (ssize_t) (argc-1))
 594               ThrowIdentifyException(OptionError,"MissingArgument",option);
 595             if (IsGeometry(argv[i]) == MagickFalse)
 596               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 597             break;
 598           }
 599         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 600       }
 601       case 'g':
 602       {
 603         if (LocaleCompare("gamma",option+1) == 0)
 604           {
 605             i++;
 606             if (i == (ssize_t) (argc-1))
 607               ThrowIdentifyException(OptionError,"MissingArgument",option);
 608             if (IsGeometry(argv[i]) == MagickFalse)
 609               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 610             break;
 611           }
 612         if (LocaleCompare("grayscale",option+1) == 0)
 613           {
 614             ssize_t
 615               method;
 616
 617             if (*option == '+')
 618               break;
 619             i++;
 620             if (i == (ssize_t) (argc-1))
 621               ThrowIdentifyException(OptionError,"MissingArgument",option);
 622             method=ParseCommandOption(MagickPixelIntensityOptions,MagickFalse,
 623               argv[i]);
 624             if (method < 0)
 625               ThrowIdentifyException(OptionError,"UnrecognizedIntensityMethod",
 626                 argv[i]);
 627             break;
 628           }
 629         if (LocaleCompare("green-primary",option+1) == 0)
 630           {
 631             if (*option == '+')
 632               break;
 633             i++;
 634             if (i == (ssize_t) (argc-1))
 635               ThrowIdentifyException(OptionError,"MissingArgument",option);
 636             if (IsGeometry(argv[i]) == MagickFalse)
 637               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 638             break;
 639           }
 640         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 641       }
 642       case 'h':
 643       {
 644         if ((LocaleCompare("help",option+1) == 0) ||
 645             (LocaleCompare("-help",option+1) == 0))
 646           return(IdentifyUsage());
 647         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 648       }
 649       case 'i':
 650       {
 651         if (LocaleCompare("interlace",option+1) == 0)
 652           {
 653             ssize_t
 654               interlace;
 655
 656             if (*option == '+')
 657               break;
 658             i++;
 659             if (i == (ssize_t) argc)
 660               ThrowIdentifyException(OptionError,"MissingArgument",option);
 661             interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
 662               argv[i]);
 663             if (interlace < 0)
 664               ThrowIdentifyException(OptionError,
 665                 "UnrecognizedInterlaceType",argv[i]);
 666             break;
 667           }
 668         if (LocaleCompare("interpolate",option+1) == 0)
 669           {
 670             ssize_t
 671               interpolate;
 672
 673             if (*option == '+')
 674               break;
 675             i++;
 676             if (i == (ssize_t) argc)
 677               ThrowIdentifyException(OptionError,"MissingArgument",option);
 678             interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
 679               argv[i]);
 680             if (interpolate < 0)
 681               ThrowIdentifyException(OptionError,
 682                 "UnrecognizedInterpolateMethod",argv[i]);
 683             break;
 684           }
 685         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 686       }
 687       case 'l':
 688       {
 689         if (LocaleCompare("limit",option+1) == 0)
 690           {
 691             char
 692               *p;
 693
 694             double
 695               value;
 696
 697             ssize_t
 698               resource;
 699
 700             if (*option == '+')
 701               break;
 702             i++;
 703             if (i == (ssize_t) argc)
 704               ThrowIdentifyException(OptionError,"MissingArgument",option);
 705             resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
 706               argv[i]);
 707             if (resource < 0)
 708               ThrowIdentifyException(OptionError,"UnrecognizedResourceType",
 709                 argv[i]);
 710             i++;
 711             if (i == (ssize_t) argc)
 712               ThrowIdentifyException(OptionError,"MissingArgument",option);
 713             value=StringToDouble(argv[i],&p);
 714             (void) value;
 715             if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
 716               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 717             break;
 718           }
 719         if (LocaleCompare("list",option+1) == 0)
 720           {
 721             ssize_t
 722               list;
 723
 724             if (*option == '+')
 725               break;
 726             i++;
 727             if (i == (ssize_t) argc)
 728               ThrowIdentifyException(OptionError,"MissingArgument",option);
 729             list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
 730             if (list < 0)
 731               ThrowIdentifyException(OptionError,"UnrecognizedListType",
 732                 argv[i]);
 733             status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
 734               argv+j,exception);
 735             DestroyIdentify();
 736             return(status != 0 ? MagickFalse : MagickTrue);
 737           }
 738         if (LocaleCompare("log",option+1) == 0)
 739           {
 740             if (*option == '+')
 741               break;
 742             i++;
 743             if ((i == (ssize_t) argc) ||
 744                 (strchr(argv[i],'%') == (char *) NULL))
 745               ThrowIdentifyException(OptionError,"MissingArgument",option);
 746             break;
 747           }
 748         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 749       }
 750       case 'm':
 751       {
 752         if (LocaleCompare("mask",option+1) == 0)
 753           {
 754             if (*option == '+')
 755               break;
 756             i++;
 757             if (i == (ssize_t) (argc-1))
 758               ThrowIdentifyException(OptionError,"MissingArgument",option);
 759             break;
 760           }
 761         if (LocaleCompare("matte",option+1) == 0)
 762           break;
 763         if (LocaleCompare("monitor",option+1) == 0)
 764           break;
 765         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 766       }
 767       case 'n':
 768       {
 769         if (LocaleCompare("negate",option+1) == 0)
 770           break;
 771         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 772       }
 773       case 'p':
 774       {
 775         if (LocaleCompare("ping",option+1) == 0)
 776           break;
 777         if (LocaleCompare("precision",option+1) == 0)
 778           {
 779             if (*option == '+')
 780               break;
 781             i++;
 782             if (i == (ssize_t) (argc-1))
 783               ThrowIdentifyException(OptionError,"MissingArgument",option);
 784             if (IsGeometry(argv[i]) == MagickFalse)
 785               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 786             break;
 787           }
 788         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 789       }
 790       case 'q':
 791       {
 792         if (LocaleCompare("quiet",option+1) == 0)
 793           break;
 794         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 795       }
 796       case 'r':
 797       {
 798         if (LocaleCompare("regard-warnings",option+1) == 0)
 799           break;
 800         if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
 801           {
 802             respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
 803             break;
 804           }
 805         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 806       }
 807       case 's':
 808       {
 809         if (LocaleCompare("sampling-factor",option+1) == 0)
 810           {
 811             if (*option == '+')
 812               break;
 813             i++;
 814             if (i == (ssize_t) argc)
 815               ThrowIdentifyException(OptionError,"MissingArgument",option);
 816             if (IsGeometry(argv[i]) == MagickFalse)
 817               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 818             break;
 819           }
 820         if (LocaleCompare("seed",option+1) == 0)
 821           {
 822             if (*option == '+')
 823               break;
 824             i++;
 825             if (i == (ssize_t) (argc-1))
 826               ThrowIdentifyException(OptionError,"MissingArgument",option);
 827             if (IsGeometry(argv[i]) == MagickFalse)
 828               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 829             break;
 830           }
 831         if (LocaleCompare("set",option+1) == 0)
 832           {
 833             i++;
 834             if (i == (ssize_t) argc)
 835               ThrowIdentifyException(OptionError,"MissingArgument",option);
 836             if (*option == '+')
 837               break;
 838             i++;
 839             if (i == (ssize_t) argc)
 840               ThrowIdentifyException(OptionError,"MissingArgument",option);
 841             break;
 842           }
 843         if (LocaleCompare("size",option+1) == 0)
 844           {
 845             if (*option == '+')
 846               break;
 847             i++;
 848             if (i == (ssize_t) argc)
 849               ThrowIdentifyException(OptionError,"MissingArgument",option);
 850             if (IsGeometry(argv[i]) == MagickFalse)
 851               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 852             break;
 853           }
 854         if (LocaleCompare("strip",option+1) == 0)
 855           break;
 856         if (LocaleCompare("support",option+1) == 0)
 857           {
 858             if (*option == '+')
 859               break;
 860             i++;
 861             if (i == (ssize_t) argc)
 862               ThrowIdentifyException(OptionError,"MissingArgument",option);
 863             if (IsGeometry(argv[i]) == MagickFalse)
 864               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 865             break;
 866           }
 867         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 868       }
 869       case 'u':
 870       {
 871         if (LocaleCompare("unique",option+1) == 0)
 872           break;
 873         if (LocaleCompare("units",option+1) == 0)
 874           {
 875             ssize_t
 876               units;
 877
 878             if (*option == '+')
 879               break;
 880             i++;
 881             if (i == (ssize_t) (argc-1))
 882               ThrowIdentifyException(OptionError,"MissingArgument",option);
 883             units=ParseCommandOption(MagickResolutionOptions,MagickFalse,
 884               argv[i]);
 885             if (units < 0)
 886               ThrowIdentifyException(OptionError,"UnrecognizedUnitsType",
 887                 argv[i]);
 888             break;
 889           }
 890         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 891       }
 892       case 'v':
 893       {
 894         if (LocaleCompare("verbose",option+1) == 0)
 895           break;
 896         if (LocaleCompare("virtual-pixel",option+1) == 0)
 897           {
 898             ssize_t
 899               method;
 900
 901             if (*option == '+')
 902               break;
 903             i++;
 904             if (i == (ssize_t) (argc-1))
 905               ThrowIdentifyException(OptionError,"MissingArgument",option);
 906             method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
 907               argv[i]);
 908             if (method < 0)
 909               ThrowIdentifyException(OptionError,
 910                 "UnrecognizedVirtualPixelMethod",argv[i]);
 911             break;
 912           }
 913         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 914       }
 915       case '?':
 916         break;
 917       default:
 918         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 919     }
 920     fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
 921       FireOptionFlag) == 0 ?  MagickFalse : MagickTrue;
 922     if (fire != MagickFalse)
 923       FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 924   }
 925   if (k != 0)
 926     ThrowIdentifyException(OptionError,"UnbalancedParenthesis",argv[i]);
 927   if (i != (ssize_t) argc)
 928     ThrowIdentifyException(OptionError,"MissingAnImageFilename",argv[i]);
 929   DestroyIdentify();
 930   return(status != 0 ? MagickTrue : MagickFalse);
 931 }