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 %                                Cristy                                       %
  17 %                            September 1994                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2018 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 %    https://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       "-channel mask        set the image channel mask",
 111       "-grayscale method    convert image to grayscale",
 112       "-negate              replace every pixel with its complementary color ",
 113       (char *) NULL
 114     },
 115     *settings[]=
 116     {
 117       "-alpha option        on, activate, off, deactivate, set, opaque, copy",
 118       "                     transparent, extract, background, or shape",
 119       "-antialias           remove pixel-aliasing",
 120       "-authenticate password",
 121       "                     decipher image with this password",
 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       "-matte               store matte channel if the image has one",
 141       "-moments             report image moments",
 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       "-read-mask filename  associate a read mask with the image",
 147       "-regard-warnings     pay attention to warning messages",
 148       "-respect-parentheses settings remain in effect until parenthesis boundary",
 149       "-sampling-factor geometry",
 150       "                     horizontal and vertical sampling factor",
 151       "-seed value          seed a new sequence of pseudo-random numbers",
 152       "-set attribute value set an image attribute",
 153       "-size geometry       width and height of image",
 154       "-strip               strip image of all profiles and comments",
 155       "-unique              display the number of unique colors in the image",
 156       "-units type          the units of image resolution",
 157       "-verbose             print detailed information about the image",
 158       "-virtual-pixel method",
 159       "                     virtual pixel access method",
 160       (char *) NULL
 161     };
 162
 163   ListMagickVersion(stdout);
 164   (void) printf("Usage: %s [options ...] file [ [options ...] "
 165     "file ... ]\n",GetClientName());
 166   (void) printf("\nImage Settings:\n");
 167   for (p=settings; *p != (char *) NULL; p++)
 168     (void) printf("  %s\n",*p);
 169   (void) printf("\nImage Operators:\n");
 170   for (p=operators; *p != (char *) NULL; p++)
 171     (void) printf("  %s\n",*p);
 172   (void) printf("\nMiscellaneous Options:\n");
 173   for (p=miscellaneous; *p != (char *) NULL; p++)
 174     (void) printf("  %s\n",*p);
 175   (void) printf(
 176     "\nBy default, the image format of 'file' is determined by its magic\n");
 177   (void) printf(
 178     "number.  To specify a particular image format, precede the filename\n");
 179   (void) printf(
 180     "with an image format name and a colon (i.e. ps:image) or specify the\n");
 181   (void) printf(
 182     "image type as the filename suffix (i.e. image.ps).  Specify 'file' as\n");
 183   (void) printf("'-' for standard input or output.\n");
 184   return(MagickFalse);
 185 }
 186
 187 WandExport MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,
 188   int argc,char **argv,char **metadata,ExceptionInfo *exception)
 189 {
 190 #define DestroyIdentify() \
 191 { \
 192   DestroyImageStack(); \
 193   for (i=0; i < (ssize_t) argc; i++) \
 194     argv[i]=DestroyString(argv[i]); \
 195   argv=(char **) RelinquishMagickMemory(argv); \
 196 }
 197 #define ThrowIdentifyException(asperity,tag,option) \
 198 { \
 199   (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"`%s'", \
 200     option); \
 201   DestroyIdentify(); \
 202   return(MagickFalse); \
 203 }
 204 #define ThrowIdentifyInvalidArgumentException(option,argument) \
 205 { \
 206   (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
 207     "InvalidArgument","'%s': %s",option,argument); \
 208   DestroyIdentify(); \
 209   return(MagickFalse); \
 210 }
 211
 212   const char
 213     *format,
 214     *option;
 215
 216   Image
 217     *image;
 218
 219   ImageStack
 220     image_stack[MaxImageStackDepth+1];
 221
 222   MagickBooleanType
 223     fire,
 224     pend,
 225     respect_parenthesis;
 226
 227   MagickStatusType
 228     status;
 229
 230   register ssize_t
 231     i;
 232
 233   size_t
 234     count;
 235
 236   ssize_t
 237     j,
 238     k;
 239
 240   /*
 241     Set defaults.
 242   */
 243   assert(image_info != (ImageInfo *) NULL);
 244   assert(image_info->signature == MagickCoreSignature);
 245   if (image_info->debug != MagickFalse)
 246     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
 247   assert(exception != (ExceptionInfo *) NULL);
 248   if (argc == 2)
 249     {
 250       option=argv[1];
 251       if ((LocaleCompare("version",option+1) == 0) ||
 252           (LocaleCompare("-version",option+1) == 0))
 253         {
 254           ListMagickVersion(stdout);
 255           return(MagickTrue);
 256         }
 257     }
 258   if (argc < 2)
 259     return(IdentifyUsage());
 260   count=0;
 261   format=NULL;
 262   j=1;
 263   k=0;
 264   NewImageStack();
 265   option=(char *) NULL;
 266   pend=MagickFalse;
 267   respect_parenthesis=MagickFalse;
 268   status=MagickTrue;
 269   /*
 270     Identify an image.
 271   */
 272   ReadCommandlLine(argc,&argv);
 273   status=ExpandFilenames(&argc,&argv);
 274   if (status == MagickFalse)
 275     ThrowIdentifyException(ResourceLimitError,"MemoryAllocationFailed",
 276       GetExceptionMessage(errno));
 277   image_info->ping=MagickTrue;
 278   for (i=1; i < (ssize_t) argc; i++)
 279   {
 280     option=argv[i];
 281     if (LocaleCompare(option,"(") == 0)
 282       {
 283         FireImageStack(MagickFalse,MagickTrue,pend);
 284         if (k == MaxImageStackDepth)
 285           ThrowIdentifyException(OptionError,"ParenthesisNestedTooDeeply",
 286             option);
 287         PushImageStack();
 288         continue;
 289       }
 290     if (LocaleCompare(option,")") == 0)
 291       {
 292         FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 293         if (k == 0)
 294           ThrowIdentifyException(OptionError,"UnableToParseExpression",option);
 295         PopImageStack();
 296         continue;
 297       }
 298     if (IsCommandOption(option) == MagickFalse)
 299       {
 300         char
 301           *filename;
 302
 303         Image
 304           *images;
 305
 306         ImageInfo
 307           *identify_info;
 308
 309         /*
 310           Read input image.
 311         */
 312         FireImageStack(MagickFalse,MagickFalse,pend);
 313         identify_info=CloneImageInfo(image_info);
 314         identify_info->verbose=MagickFalse;
 315         filename=argv[i];
 316         if ((LocaleCompare(filename,"--") == 0) && (i < (ssize_t) (argc-1)))
 317           filename=argv[++i];
 318         if (identify_info->ping != MagickFalse)
 319           images=PingImages(identify_info,filename,exception);
 320         else
 321           images=ReadImages(identify_info,filename,exception);
 322         identify_info=DestroyImageInfo(identify_info);
 323         status&=(images != (Image *) NULL) &&
 324           (exception->severity < ErrorException);
 325         if (images == (Image *) NULL)
 326           continue;
 327         AppendImageStack(images);
 328         FinalizeImageSettings(image_info,image,MagickFalse);
 329         count=0;
 330         for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
 331         {
 332           if (image->scene == 0)
 333             image->scene=count++;
 334           if (format == (char *) NULL)
 335             {
 336               (void) IdentifyImage(image,stdout,image_info->verbose,exception);
 337               continue;
 338             }
 339           if (metadata != (char **) NULL)
 340             {
 341               char
 342                 *text;
 343
 344               text=InterpretImageProperties(image_info,image,format,exception);
 345               if (text == (char *) NULL)
 346                 ThrowIdentifyException(ResourceLimitError,
 347                   "MemoryAllocationFailed",GetExceptionMessage(errno));
 348               (void) ConcatenateString(&(*metadata),text);
 349               text=DestroyString(text);
 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)
 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)
 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)
 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)
 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)
 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)
 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],15) == 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)
 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)
 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)
 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)
 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)
 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)
 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)
 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 ? MagickTrue : MagickFalse);
 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)
 758               ThrowIdentifyException(OptionError,"MissingArgument",option);
 759             break;
 760           }
 761         if (LocaleCompare("matte",option+1) == 0)
 762           break;
 763         if (LocaleCompare("moments",option+1) == 0)
 764           break;
 765         if (LocaleCompare("monitor",option+1) == 0)
 766           break;
 767         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 768       }
 769       case 'n':
 770       {
 771         if (LocaleCompare("negate",option+1) == 0)
 772           break;
 773         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 774       }
 775       case 'p':
 776       {
 777         if (LocaleCompare("ping",option+1) == 0)
 778           break;
 779         if (LocaleCompare("precision",option+1) == 0)
 780           {
 781             if (*option == '+')
 782               break;
 783             i++;
 784             if (i == (ssize_t) argc)
 785               ThrowIdentifyException(OptionError,"MissingArgument",option);
 786             if (IsGeometry(argv[i]) == MagickFalse)
 787               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 788             break;
 789           }
 790         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 791       }
 792       case 'q':
 793       {
 794         if (LocaleCompare("quiet",option+1) == 0)
 795           break;
 796         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 797       }
 798       case 'r':
 799       {
 800         if (LocaleCompare("regard-warnings",option+1) == 0)
 801           break;
 802         if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
 803           {
 804             respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
 805             break;
 806           }
 807         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 808       }
 809       case 's':
 810       {
 811         if (LocaleCompare("sampling-factor",option+1) == 0)
 812           {
 813             if (*option == '+')
 814               break;
 815             i++;
 816             if (i == (ssize_t) argc)
 817               ThrowIdentifyException(OptionError,"MissingArgument",option);
 818             if (IsGeometry(argv[i]) == MagickFalse)
 819               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 820             break;
 821           }
 822         if (LocaleCompare("seed",option+1) == 0)
 823           {
 824             if (*option == '+')
 825               break;
 826             i++;
 827             if (i == (ssize_t) argc)
 828               ThrowIdentifyException(OptionError,"MissingArgument",option);
 829             if (IsGeometry(argv[i]) == MagickFalse)
 830               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 831             break;
 832           }
 833         if (LocaleCompare("set",option+1) == 0)
 834           {
 835             i++;
 836             if (i == (ssize_t) argc)
 837               ThrowIdentifyException(OptionError,"MissingArgument",option);
 838             if (*option == '+')
 839               break;
 840             i++;
 841             if (i == (ssize_t) argc)
 842               ThrowIdentifyException(OptionError,"MissingArgument",option);
 843             break;
 844           }
 845         if (LocaleCompare("size",option+1) == 0)
 846           {
 847             if (*option == '+')
 848               break;
 849             i++;
 850             if (i == (ssize_t) argc)
 851               ThrowIdentifyException(OptionError,"MissingArgument",option);
 852             if (IsGeometry(argv[i]) == MagickFalse)
 853               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 854             break;
 855           }
 856         if (LocaleCompare("strip",option+1) == 0)
 857           break;
 858         if (LocaleCompare("support",option+1) == 0)
 859           {
 860             if (*option == '+')
 861               break;
 862             i++;
 863             if (i == (ssize_t) argc)
 864               ThrowIdentifyException(OptionError,"MissingArgument",option);
 865             if (IsGeometry(argv[i]) == MagickFalse)
 866               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 867             break;
 868           }
 869         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 870       }
 871       case 'u':
 872       {
 873         if (LocaleCompare("unique",option+1) == 0)
 874           break;
 875         if (LocaleCompare("units",option+1) == 0)
 876           {
 877             ssize_t
 878               units;
 879
 880             if (*option == '+')
 881               break;
 882             i++;
 883             if (i == (ssize_t) argc)
 884               ThrowIdentifyException(OptionError,"MissingArgument",option);
 885             units=ParseCommandOption(MagickResolutionOptions,MagickFalse,
 886               argv[i]);
 887             if (units < 0)
 888               ThrowIdentifyException(OptionError,"UnrecognizedUnitsType",
 889                 argv[i]);
 890             break;
 891           }
 892         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 893       }
 894       case 'v':
 895       {
 896         if (LocaleCompare("verbose",option+1) == 0)
 897           break;
 898         if (LocaleCompare("virtual-pixel",option+1) == 0)
 899           {
 900             ssize_t
 901               method;
 902
 903             if (*option == '+')
 904               break;
 905             i++;
 906             if (i == (ssize_t) argc)
 907               ThrowIdentifyException(OptionError,"MissingArgument",option);
 908             method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
 909               argv[i]);
 910             if (method < 0)
 911               ThrowIdentifyException(OptionError,
 912                 "UnrecognizedVirtualPixelMethod",argv[i]);
 913             break;
 914           }
 915         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 916       }
 917       case '?':
 918         break;
 919       default:
 920         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 921     }
 922     fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
 923       FireOptionFlag) == 0 ?  MagickFalse : MagickTrue;
 924     if (fire != MagickFalse)
 925       FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 926   }
 927   if (k != 0)
 928     ThrowIdentifyException(OptionError,"UnbalancedParenthesis",argv[i]);
 929   if (i != (ssize_t) argc)
 930     ThrowIdentifyException(OptionError,"MissingAnImageFilename",argv[i]);
 931   DestroyIdentify();
 932   return(status != 0 ? MagickTrue : MagickFalse);
 933 }