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 1999-2015 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       "-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       "-mask filename       associate a mask with the image",
 141       "-matte               store matte channel if the image has one",
 142       "-moments             report image moments",
 143       "-monitor             monitor progress",
 144       "-ping                efficiently determine image attributes",
 145       "-precision value     maximum number of significant digits to print",
 146       "-quiet               suppress all warning messages",
 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 == MagickSignature);
 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(MagickFalse);
 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         for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
 330         {
 331           if (image->scene == 0)
 332             image->scene=count++;
 333           if (format == (char *) NULL)
 334             {
 335               (void) IdentifyImage(image,stdout,image_info->verbose,exception);
 336               continue;
 337             }
 338           if (metadata != (char **) NULL)
 339             {
 340               char
 341                 *text;
 342
 343               text=InterpretImageProperties(image_info,image,format,exception);
 344               if (text == (char *) NULL)
 345                 ThrowIdentifyException(ResourceLimitError,
 346                   "MemoryAllocationFailed",GetExceptionMessage(errno));
 347               (void) ConcatenateString(&(*metadata),text);
 348               text=DestroyString(text);
 349               if (GlobExpression(format,"*%n*",MagickFalse) != MagickFalse)
 350                 break;
 351             }
 352         }
 353         RemoveAllImageStack();
 354         continue;
 355       }
 356     pend=image != (Image *) NULL ? MagickTrue : MagickFalse;
 357     switch (*(option+1))
 358     {
 359       case 'a':
 360       {
 361         if (LocaleCompare("alpha",option+1) == 0)
 362           {
 363             ssize_t
 364               type;
 365
 366             if (*option == '+')
 367               break;
 368             i++;
 369             if (i == (ssize_t) argc)
 370               ThrowIdentifyException(OptionError,"MissingArgument",option);
 371             type=ParseCommandOption(MagickAlphaChannelOptions,MagickFalse,
 372               argv[i]);
 373             if (type < 0)
 374               ThrowIdentifyException(OptionError,
 375                 "UnrecognizedAlphaChannelOption",argv[i]);
 376             break;
 377           }
 378         if (LocaleCompare("antialias",option+1) == 0)
 379           break;
 380         if (LocaleCompare("authenticate",option+1) == 0)
 381           {
 382             if (*option == '+')
 383               break;
 384             i++;
 385             if (i == (ssize_t) argc)
 386               ThrowIdentifyException(OptionError,"MissingArgument",option);
 387             break;
 388           }
 389         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 390       }
 391       case 'c':
 392       {
 393         if (LocaleCompare("cache",option+1) == 0)
 394           {
 395             if (*option == '+')
 396               break;
 397             i++;
 398             if (i == (ssize_t) argc)
 399               ThrowIdentifyException(OptionError,"MissingArgument",option);
 400             if (IsGeometry(argv[i]) == MagickFalse)
 401               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 402             break;
 403           }
 404         if (LocaleCompare("channel",option+1) == 0)
 405           {
 406             ssize_t
 407               channel;
 408
 409             if (*option == '+')
 410               break;
 411             i++;
 412             if (i == (ssize_t) argc)
 413               ThrowIdentifyException(OptionError,"MissingArgument",option);
 414             channel=ParseChannelOption(argv[i]);
 415             if (channel < 0)
 416               ThrowIdentifyException(OptionError,"UnrecognizedChannelType",
 417                 argv[i]);
 418             break;
 419           }
 420         if (LocaleCompare("clip",option+1) == 0)
 421           break;
 422         if (LocaleCompare("clip-mask",option+1) == 0)
 423           {
 424             if (*option == '+')
 425               break;
 426             i++;
 427             if (i == (ssize_t) argc)
 428               ThrowIdentifyException(OptionError,"MissingArgument",option);
 429             break;
 430           }
 431         if (LocaleCompare("clip-path",option+1) == 0)
 432           {
 433             i++;
 434             if (i == (ssize_t) argc)
 435               ThrowIdentifyException(OptionError,"MissingArgument",option);
 436             break;
 437           }
 438         if (LocaleCompare("colorspace",option+1) == 0)
 439           {
 440             ssize_t
 441               colorspace;
 442
 443             if (*option == '+')
 444               break;
 445             i++;
 446             if (i == (ssize_t) argc)
 447               ThrowIdentifyException(OptionError,"MissingArgument",option);
 448             colorspace=ParseCommandOption(MagickColorspaceOptions,
 449               MagickFalse,argv[i]);
 450             if (colorspace < 0)
 451               ThrowIdentifyException(OptionError,"UnrecognizedColorspace",
 452                 argv[i]);
 453             break;
 454           }
 455         if (LocaleCompare("crop",option+1) == 0)
 456           {
 457             if (*option == '+')
 458               break;
 459             i++;
 460             if (i == (ssize_t) argc)
 461               ThrowIdentifyException(OptionError,"MissingArgument",option);
 462             if (IsGeometry(argv[i]) == MagickFalse)
 463               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 464             image_info->ping=MagickFalse;
 465             break;
 466           }
 467         if (LocaleCompare("concurrent",option+1) == 0)
 468           break;
 469         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 470       }
 471       case 'd':
 472       {
 473         if (LocaleCompare("debug",option+1) == 0)
 474           {
 475             ssize_t
 476               event;
 477
 478             if (*option == '+')
 479               break;
 480             i++;
 481             if (i == (ssize_t) argc)
 482               ThrowIdentifyException(OptionError,"MissingArgument",option);
 483             event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
 484             if (event < 0)
 485               ThrowIdentifyException(OptionError,"UnrecognizedEventType",
 486                 argv[i]);
 487             (void) SetLogEventMask(argv[i]);
 488             break;
 489           }
 490         if (LocaleCompare("define",option+1) == 0)
 491           {
 492             i++;
 493             if (i == (ssize_t) argc)
 494               ThrowIdentifyException(OptionError,"MissingArgument",option);
 495             if (*option == '+')
 496               {
 497                 const char
 498                   *define;
 499
 500                 define=GetImageOption(image_info,argv[i]);
 501                 if (define == (const char *) NULL)
 502                   ThrowIdentifyException(OptionError,"NoSuchOption",argv[i]);
 503                 break;
 504               }
 505             if (LocaleNCompare("identify:locate",argv[i],15) == 0)
 506               image_info->ping=MagickFalse;
 507             break;
 508           }
 509         if (LocaleCompare("density",option+1) == 0)
 510           {
 511             if (*option == '+')
 512               break;
 513             i++;
 514             if (i == (ssize_t) argc)
 515               ThrowIdentifyException(OptionError,"MissingArgument",option);
 516             if (IsGeometry(argv[i]) == MagickFalse)
 517               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 518             break;
 519           }
 520         if (LocaleCompare("depth",option+1) == 0)
 521           {
 522             if (*option == '+')
 523               break;
 524             i++;
 525             if (i == (ssize_t) argc)
 526               ThrowIdentifyException(OptionError,"MissingArgument",option);
 527             if (IsGeometry(argv[i]) == MagickFalse)
 528               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 529             break;
 530           }
 531         if (LocaleCompare("duration",option+1) == 0)
 532           {
 533             if (*option == '+')
 534               break;
 535             i++;
 536             if (i == (ssize_t) argc)
 537               ThrowIdentifyException(OptionError,"MissingArgument",option);
 538             if (IsGeometry(argv[i]) == MagickFalse)
 539               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 540             break;
 541           }
 542         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 543       }
 544       case 'e':
 545       {
 546         if (LocaleCompare("endian",option+1) == 0)
 547           {
 548             ssize_t
 549               endian;
 550
 551             if (*option == '+')
 552               break;
 553             i++;
 554             if (i == (ssize_t) argc)
 555               ThrowIdentifyException(OptionError,"MissingArgument",option);
 556             endian=ParseCommandOption(MagickEndianOptions,MagickFalse,
 557               argv[i]);
 558             if (endian < 0)
 559               ThrowIdentifyException(OptionError,"UnrecognizedEndianType",
 560                 argv[i]);
 561             break;
 562           }
 563         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 564       }
 565       case 'f':
 566       {
 567         if (LocaleCompare("features",option+1) == 0)
 568           {
 569             if (*option == '+')
 570               break;
 571             i++;
 572             if (i == (ssize_t) argc)
 573               ThrowIdentifyException(OptionError,"MissingArgument",option);
 574             if (IsGeometry(argv[i]) == MagickFalse)
 575               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 576             break;
 577           }
 578         if (LocaleCompare("format",option+1) == 0)
 579           {
 580             format=(char *) NULL;
 581             if (*option == '+')
 582               break;
 583             i++;
 584             if (i == (ssize_t) argc)
 585               ThrowIdentifyException(OptionError,"MissingArgument",option);
 586             format=argv[i];
 587             break;
 588           }
 589         if (LocaleCompare("fuzz",option+1) == 0)
 590           {
 591             if (*option == '+')
 592               break;
 593             i++;
 594             if (i == (ssize_t) argc)
 595               ThrowIdentifyException(OptionError,"MissingArgument",option);
 596             if (IsGeometry(argv[i]) == MagickFalse)
 597               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 598             break;
 599           }
 600         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 601       }
 602       case 'g':
 603       {
 604         if (LocaleCompare("gamma",option+1) == 0)
 605           {
 606             i++;
 607             if (i == (ssize_t) argc)
 608               ThrowIdentifyException(OptionError,"MissingArgument",option);
 609             if (IsGeometry(argv[i]) == MagickFalse)
 610               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 611             break;
 612           }
 613         if (LocaleCompare("grayscale",option+1) == 0)
 614           {
 615             ssize_t
 616               method;
 617
 618             if (*option == '+')
 619               break;
 620             i++;
 621             if (i == (ssize_t) argc)
 622               ThrowIdentifyException(OptionError,"MissingArgument",option);
 623             method=ParseCommandOption(MagickPixelIntensityOptions,MagickFalse,
 624               argv[i]);
 625             if (method < 0)
 626               ThrowIdentifyException(OptionError,"UnrecognizedIntensityMethod",
 627                 argv[i]);
 628             break;
 629           }
 630         if (LocaleCompare("green-primary",option+1) == 0)
 631           {
 632             if (*option == '+')
 633               break;
 634             i++;
 635             if (i == (ssize_t) argc)
 636               ThrowIdentifyException(OptionError,"MissingArgument",option);
 637             if (IsGeometry(argv[i]) == MagickFalse)
 638               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 639             break;
 640           }
 641         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 642       }
 643       case 'h':
 644       {
 645         if ((LocaleCompare("help",option+1) == 0) ||
 646             (LocaleCompare("-help",option+1) == 0))
 647           return(IdentifyUsage());
 648         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 649       }
 650       case 'i':
 651       {
 652         if (LocaleCompare("interlace",option+1) == 0)
 653           {
 654             ssize_t
 655               interlace;
 656
 657             if (*option == '+')
 658               break;
 659             i++;
 660             if (i == (ssize_t) argc)
 661               ThrowIdentifyException(OptionError,"MissingArgument",option);
 662             interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
 663               argv[i]);
 664             if (interlace < 0)
 665               ThrowIdentifyException(OptionError,
 666                 "UnrecognizedInterlaceType",argv[i]);
 667             break;
 668           }
 669         if (LocaleCompare("interpolate",option+1) == 0)
 670           {
 671             ssize_t
 672               interpolate;
 673
 674             if (*option == '+')
 675               break;
 676             i++;
 677             if (i == (ssize_t) argc)
 678               ThrowIdentifyException(OptionError,"MissingArgument",option);
 679             interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
 680               argv[i]);
 681             if (interpolate < 0)
 682               ThrowIdentifyException(OptionError,
 683                 "UnrecognizedInterpolateMethod",argv[i]);
 684             break;
 685           }
 686         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 687       }
 688       case 'l':
 689       {
 690         if (LocaleCompare("limit",option+1) == 0)
 691           {
 692             char
 693               *p;
 694
 695             double
 696               value;
 697
 698             ssize_t
 699               resource;
 700
 701             if (*option == '+')
 702               break;
 703             i++;
 704             if (i == (ssize_t) argc)
 705               ThrowIdentifyException(OptionError,"MissingArgument",option);
 706             resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
 707               argv[i]);
 708             if (resource < 0)
 709               ThrowIdentifyException(OptionError,"UnrecognizedResourceType",
 710                 argv[i]);
 711             i++;
 712             if (i == (ssize_t) argc)
 713               ThrowIdentifyException(OptionError,"MissingArgument",option);
 714             value=StringToDouble(argv[i],&p);
 715             (void) value;
 716             if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
 717               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 718             break;
 719           }
 720         if (LocaleCompare("list",option+1) == 0)
 721           {
 722             ssize_t
 723               list;
 724
 725             if (*option == '+')
 726               break;
 727             i++;
 728             if (i == (ssize_t) argc)
 729               ThrowIdentifyException(OptionError,"MissingArgument",option);
 730             list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
 731             if (list < 0)
 732               ThrowIdentifyException(OptionError,"UnrecognizedListType",
 733                 argv[i]);
 734             status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
 735               argv+j,exception);
 736             DestroyIdentify();
 737             return(status == 0 ? MagickTrue : MagickFalse);
 738           }
 739         if (LocaleCompare("log",option+1) == 0)
 740           {
 741             if (*option == '+')
 742               break;
 743             i++;
 744             if ((i == (ssize_t) argc) ||
 745                 (strchr(argv[i],'%') == (char *) NULL))
 746               ThrowIdentifyException(OptionError,"MissingArgument",option);
 747             break;
 748           }
 749         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 750       }
 751       case 'm':
 752       {
 753         if (LocaleCompare("mask",option+1) == 0)
 754           {
 755             if (*option == '+')
 756               break;
 757             i++;
 758             if (i == (ssize_t) argc)
 759               ThrowIdentifyException(OptionError,"MissingArgument",option);
 760             break;
 761           }
 762         if (LocaleCompare("matte",option+1) == 0)
 763           break;
 764         if (LocaleCompare("moments",option+1) == 0)
 765           break;
 766         if (LocaleCompare("monitor",option+1) == 0)
 767           break;
 768         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 769       }
 770       case 'n':
 771       {
 772         if (LocaleCompare("negate",option+1) == 0)
 773           break;
 774         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 775       }
 776       case 'p':
 777       {
 778         if (LocaleCompare("ping",option+1) == 0)
 779           break;
 780         if (LocaleCompare("precision",option+1) == 0)
 781           {
 782             if (*option == '+')
 783               break;
 784             i++;
 785             if (i == (ssize_t) argc)
 786               ThrowIdentifyException(OptionError,"MissingArgument",option);
 787             if (IsGeometry(argv[i]) == MagickFalse)
 788               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 789             break;
 790           }
 791         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 792       }
 793       case 'q':
 794       {
 795         if (LocaleCompare("quiet",option+1) == 0)
 796           break;
 797         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 798       }
 799       case 'r':
 800       {
 801         if (LocaleCompare("regard-warnings",option+1) == 0)
 802           break;
 803         if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
 804           {
 805             respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
 806             break;
 807           }
 808         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 809       }
 810       case 's':
 811       {
 812         if (LocaleCompare("sampling-factor",option+1) == 0)
 813           {
 814             if (*option == '+')
 815               break;
 816             i++;
 817             if (i == (ssize_t) argc)
 818               ThrowIdentifyException(OptionError,"MissingArgument",option);
 819             if (IsGeometry(argv[i]) == MagickFalse)
 820               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 821             break;
 822           }
 823         if (LocaleCompare("seed",option+1) == 0)
 824           {
 825             if (*option == '+')
 826               break;
 827             i++;
 828             if (i == (ssize_t) argc)
 829               ThrowIdentifyException(OptionError,"MissingArgument",option);
 830             if (IsGeometry(argv[i]) == MagickFalse)
 831               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 832             break;
 833           }
 834         if (LocaleCompare("set",option+1) == 0)
 835           {
 836             i++;
 837             if (i == (ssize_t) argc)
 838               ThrowIdentifyException(OptionError,"MissingArgument",option);
 839             if (*option == '+')
 840               break;
 841             i++;
 842             if (i == (ssize_t) argc)
 843               ThrowIdentifyException(OptionError,"MissingArgument",option);
 844             break;
 845           }
 846         if (LocaleCompare("size",option+1) == 0)
 847           {
 848             if (*option == '+')
 849               break;
 850             i++;
 851             if (i == (ssize_t) argc)
 852               ThrowIdentifyException(OptionError,"MissingArgument",option);
 853             if (IsGeometry(argv[i]) == MagickFalse)
 854               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 855             break;
 856           }
 857         if (LocaleCompare("strip",option+1) == 0)
 858           break;
 859         if (LocaleCompare("support",option+1) == 0)
 860           {
 861             if (*option == '+')
 862               break;
 863             i++;
 864             if (i == (ssize_t) argc)
 865               ThrowIdentifyException(OptionError,"MissingArgument",option);
 866             if (IsGeometry(argv[i]) == MagickFalse)
 867               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 868             break;
 869           }
 870         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 871       }
 872       case 'u':
 873       {
 874         if (LocaleCompare("unique",option+1) == 0)
 875           break;
 876         if (LocaleCompare("units",option+1) == 0)
 877           {
 878             ssize_t
 879               units;
 880
 881             if (*option == '+')
 882               break;
 883             i++;
 884             if (i == (ssize_t) argc)
 885               ThrowIdentifyException(OptionError,"MissingArgument",option);
 886             units=ParseCommandOption(MagickResolutionOptions,MagickFalse,
 887               argv[i]);
 888             if (units < 0)
 889               ThrowIdentifyException(OptionError,"UnrecognizedUnitsType",
 890                 argv[i]);
 891             break;
 892           }
 893         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 894       }
 895       case 'v':
 896       {
 897         if (LocaleCompare("verbose",option+1) == 0)
 898           break;
 899         if (LocaleCompare("virtual-pixel",option+1) == 0)
 900           {
 901             ssize_t
 902               method;
 903
 904             if (*option == '+')
 905               break;
 906             i++;
 907             if (i == (ssize_t) argc)
 908               ThrowIdentifyException(OptionError,"MissingArgument",option);
 909             method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
 910               argv[i]);
 911             if (method < 0)
 912               ThrowIdentifyException(OptionError,
 913                 "UnrecognizedVirtualPixelMethod",argv[i]);
 914             break;
 915           }
 916         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 917       }
 918       case '?':
 919         break;
 920       default:
 921         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 922     }
 923     fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
 924       FireOptionFlag) == 0 ?  MagickFalse : MagickTrue;
 925     if (fire != MagickFalse)
 926       FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 927   }
 928   if (k != 0)
 929     ThrowIdentifyException(OptionError,"UnbalancedParenthesis",argv[i]);
 930   if (i != (ssize_t) argc)
 931     ThrowIdentifyException(OptionError,"MissingAnImageFilename",argv[i]);
 932   DestroyIdentify();
 933   return(status != 0 ? MagickTrue : MagickFalse);
 934 }