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       "-negate              replace every pixel with its complementary color ",
 111       (char *) NULL
 112     },
 113     *settings[]=
 114     {
 115       "-alpha option        on, activate, off, deactivate, set, opaque, copy",
 116       "                     transparent, extract, background, or shape",
 117       "-antialias           remove pixel-aliasing",
 118       "-authenticate password",
 119       "                     decipher image with this password",
 120       "-channel type        apply option to select image channels",
 121       "-colorspace type     alternate image colorspace",
 122       "-crop geometry       cut out a rectangular region of the image",
 123       "-define format:option",
 124       "                     define one or more image format options",
 125       "-density geometry    horizontal and vertical density of the image",
 126       "-depth value         image depth",
 127       "-endian type         endianness (MSB or LSB) of the image",
 128       "-extract geometry    extract area from image",
 129       "-features distance   analyze image features (e.g. contrast, correlation)",
 130       "-format \"string\"     output formatted image characteristics",
 131       "-fuzz distance       colors within this distance are considered equal",
 132       "-gamma value         of gamma correction",
 133       "-interlace type      type of image interlacing scheme",
 134       "-interpolate method  pixel color interpolation method",
 135       "-limit type value    pixel cache resource limit",
 136       "-mask filename       associate a mask with the image",
 137       "-monitor             monitor progress",
 138       "-ping                efficiently determine image attributes",
 139       "-quiet               suppress all warning messages",
 140       "-regard-warnings     pay attention to warning messages",
 141       "-respect-parentheses settings remain in effect until parenthesis boundary",
 142       "-sampling-factor geometry",
 143       "                     horizontal and vertical sampling factor",
 144       "-seed value          seed a new sequence of pseudo-random numbers",
 145       "-set attribute value set an image attribute",
 146       "-size geometry       width and height of image",
 147       "-strip               strip image of all profiles and comments",
 148       "-unique              display the number of unique colors in the image",
 149       "-units type          the units of image resolution",
 150       "-verbose             print detailed information about the image",
 151       "-virtual-pixel method",
 152       "                     virtual pixel access method",
 153       (char *) NULL
 154     };
 155
 156   (void) printf("Version: %s\n",GetMagickVersion((size_t *) NULL));
 157   (void) printf("Copyright: %s\n",GetMagickCopyright());
 158   (void) printf("Features: %s\n\n",GetMagickFeatures());
 159   (void) printf("Usage: %s [options ...] file [ [options ...] "
 160     "file ... ]\n",GetClientName());
 161   (void) printf("\nImage Settings:\n");
 162   for (p=settings; *p != (char *) NULL; p++)
 163     (void) printf("  %s\n",*p);
 164   (void) printf("\nImage Operators:\n");
 165   for (p=operators; *p != (char *) NULL; p++)
 166     (void) printf("  %s\n",*p);
 167   (void) printf("\nMiscellaneous Options:\n");
 168   for (p=miscellaneous; *p != (char *) NULL; p++)
 169     (void) printf("  %s\n",*p);
 170   (void) printf(
 171     "\nBy default, the image format of 'file' is determined by its magic\n");
 172   (void) printf(
 173     "number.  To specify a particular image format, precede the filename\n");
 174   (void) printf(
 175     "with an image format name and a colon (i.e. ps:image) or specify the\n");
 176   (void) printf(
 177     "image type as the filename suffix (i.e. image.ps).  Specify 'file' as\n");
 178   (void) printf("'-' for standard input or output.\n");
 179   return(MagickFalse);
 180 }
 181
 182 WandExport MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,
 183   int argc,char **argv,char **metadata,ExceptionInfo *exception)
 184 {
 185 #define DestroyIdentify() \
 186 { \
 187   DestroyImageStack(); \
 188   for (i=0; i < (ssize_t) argc; i++) \
 189     argv[i]=DestroyString(argv[i]); \
 190   argv=(char **) RelinquishMagickMemory(argv); \
 191 }
 192 #define ThrowIdentifyException(asperity,tag,option) \
 193 { \
 194   (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"'%s'", \
 195     option); \
 196   DestroyIdentify(); \
 197   return(MagickFalse); \
 198 }
 199 #define ThrowIdentifyInvalidArgumentException(option,argument) \
 200 { \
 201   (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
 202     "InvalidArgument","'%s': %s",option,argument); \
 203   DestroyIdentify(); \
 204   return(MagickFalse); \
 205 }
 206
 207   const char
 208     *format,
 209     *option;
 210
 211   Image
 212     *image;
 213
 214   ImageStack
 215     image_stack[MaxImageStackDepth+1];
 216
 217   MagickBooleanType
 218     fire,
 219     pend,
 220     respect_parenthesis;
 221
 222   MagickStatusType
 223     status;
 224
 225   register ssize_t
 226     i;
 227
 228   size_t
 229     count;
 230
 231   ssize_t
 232     j,
 233     k;
 234
 235   /*
 236     Set defaults.
 237   */
 238   assert(image_info != (ImageInfo *) NULL);
 239   assert(image_info->signature == MagickSignature);
 240   if (image_info->debug != MagickFalse)
 241     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
 242   assert(exception != (ExceptionInfo *) NULL);
 243   if (argc == 2)
 244     {
 245       option=argv[1];
 246       if ((LocaleCompare("version",option+1) == 0) ||
 247           (LocaleCompare("-version",option+1) == 0))
 248         {
 249           (void) FormatLocaleFile(stdout,"Version: %s\n",
 250             GetMagickVersion((size_t *) NULL));
 251           (void) FormatLocaleFile(stdout,"Copyright: %s\n",
 252             GetMagickCopyright());
 253           (void) FormatLocaleFile(stdout,"Features: %s\n\n",
 254             GetMagickFeatures());
 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 (LocaleCompare(format,"%n") == 0)
 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-1))
 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-1))
 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("colorspace",option+1) == 0)
 421           {
 422             ssize_t
 423               colorspace;
 424
 425             if (*option == '+')
 426               break;
 427             i++;
 428             if (i == (ssize_t) (argc-1))
 429               ThrowIdentifyException(OptionError,"MissingArgument",option);
 430             colorspace=ParseCommandOption(MagickColorspaceOptions,
 431               MagickFalse,argv[i]);
 432             if (colorspace < 0)
 433               ThrowIdentifyException(OptionError,"UnrecognizedColorspace",
 434                 argv[i]);
 435             break;
 436           }
 437         if (LocaleCompare("crop",option+1) == 0)
 438           {
 439             if (*option == '+')
 440               break;
 441             i++;
 442             if (i == (ssize_t) (argc-1))
 443               ThrowIdentifyException(OptionError,"MissingArgument",option);
 444             if (IsGeometry(argv[i]) == MagickFalse)
 445               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 446             image_info->ping=MagickFalse;
 447             break;
 448           }
 449         if (LocaleCompare("concurrent",option+1) == 0)
 450           break;
 451         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 452       }
 453       case 'd':
 454       {
 455         if (LocaleCompare("debug",option+1) == 0)
 456           {
 457             ssize_t
 458               event;
 459
 460             if (*option == '+')
 461               break;
 462             i++;
 463             if (i == (ssize_t) argc)
 464               ThrowIdentifyException(OptionError,"MissingArgument",option);
 465             event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
 466             if (event < 0)
 467               ThrowIdentifyException(OptionError,"UnrecognizedEventType",
 468                 argv[i]);
 469             (void) SetLogEventMask(argv[i]);
 470             break;
 471           }
 472         if (LocaleCompare("define",option+1) == 0)
 473           {
 474             i++;
 475             if (i == (ssize_t) argc)
 476               ThrowIdentifyException(OptionError,"MissingArgument",option);
 477             if (*option == '+')
 478               {
 479                 const char
 480                   *define;
 481
 482                 define=GetImageOption(image_info,argv[i]);
 483                 if (define == (const char *) NULL)
 484                   ThrowIdentifyException(OptionError,"NoSuchOption",argv[i]);
 485                 break;
 486               }
 487             break;
 488           }
 489         if (LocaleCompare("density",option+1) == 0)
 490           {
 491             if (*option == '+')
 492               break;
 493             i++;
 494             if (i == (ssize_t) argc)
 495               ThrowIdentifyException(OptionError,"MissingArgument",option);
 496             if (IsGeometry(argv[i]) == MagickFalse)
 497               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 498             break;
 499           }
 500         if (LocaleCompare("depth",option+1) == 0)
 501           {
 502             if (*option == '+')
 503               break;
 504             i++;
 505             if (i == (ssize_t) argc)
 506               ThrowIdentifyException(OptionError,"MissingArgument",option);
 507             if (IsGeometry(argv[i]) == MagickFalse)
 508               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 509             break;
 510           }
 511         if (LocaleCompare("duration",option+1) == 0)
 512           {
 513             if (*option == '+')
 514               break;
 515             i++;
 516             if (i == (ssize_t) (argc-1))
 517               ThrowIdentifyException(OptionError,"MissingArgument",option);
 518             if (IsGeometry(argv[i]) == MagickFalse)
 519               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 520             break;
 521           }
 522         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 523       }
 524       case '3':
 525       {
 526         if (LocaleCompare("endian",option+1) == 0)
 527           {
 528             ssize_t
 529               endian;
 530
 531             if (*option == '+')
 532               break;
 533             i++;
 534             if (i == (ssize_t) (argc-1))
 535               ThrowIdentifyException(OptionError,"MissingArgument",option);
 536             endian=ParseCommandOption(MagickEndianOptions,MagickFalse,
 537               argv[i]);
 538             if (endian < 0)
 539               ThrowIdentifyException(OptionError,"UnrecognizedEndianType",
 540                 argv[i]);
 541             break;
 542           }
 543         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 544       }
 545       case 'f':
 546       {
 547         if (LocaleCompare("features",option+1) == 0)
 548           {
 549             if (*option == '+')
 550               break;
 551             i++;
 552             if (i == (ssize_t) (argc-1))
 553               ThrowIdentifyException(OptionError,"MissingArgument",option);
 554             if (IsGeometry(argv[i]) == MagickFalse)
 555               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 556             break;
 557           }
 558         if (LocaleCompare("format",option+1) == 0)
 559           {
 560             format=(char *) NULL;
 561             if (*option == '+')
 562               break;
 563             i++;
 564             if (i == (ssize_t) argc)
 565               ThrowIdentifyException(OptionError,"MissingArgument",option);
 566             format=argv[i];
 567             break;
 568           }
 569         if (LocaleCompare("fuzz",option+1) == 0)
 570           {
 571             if (*option == '+')
 572               break;
 573             i++;
 574             if (i == (ssize_t) (argc-1))
 575               ThrowIdentifyException(OptionError,"MissingArgument",option);
 576             if (IsGeometry(argv[i]) == MagickFalse)
 577               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 578             break;
 579           }
 580         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 581       }
 582       case 'g':
 583       {
 584         if (LocaleCompare("gamma",option+1) == 0)
 585           {
 586             i++;
 587             if (i == (ssize_t) (argc-1))
 588               ThrowIdentifyException(OptionError,"MissingArgument",option);
 589             if (IsGeometry(argv[i]) == MagickFalse)
 590               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 591             break;
 592           }
 593         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 594       }
 595       case 'h':
 596       {
 597         if ((LocaleCompare("help",option+1) == 0) ||
 598             (LocaleCompare("-help",option+1) == 0))
 599           return(IdentifyUsage());
 600         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 601       }
 602       case 'i':
 603       {
 604         if (LocaleCompare("interlace",option+1) == 0)
 605           {
 606             ssize_t
 607               interlace;
 608
 609             if (*option == '+')
 610               break;
 611             i++;
 612             if (i == (ssize_t) argc)
 613               ThrowIdentifyException(OptionError,"MissingArgument",option);
 614             interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
 615               argv[i]);
 616             if (interlace < 0)
 617               ThrowIdentifyException(OptionError,
 618                 "UnrecognizedInterlaceType",argv[i]);
 619             break;
 620           }
 621         if (LocaleCompare("interpolate",option+1) == 0)
 622           {
 623             ssize_t
 624               interpolate;
 625
 626             if (*option == '+')
 627               break;
 628             i++;
 629             if (i == (ssize_t) argc)
 630               ThrowIdentifyException(OptionError,"MissingArgument",option);
 631             interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
 632               argv[i]);
 633             if (interpolate < 0)
 634               ThrowIdentifyException(OptionError,
 635                 "UnrecognizedInterpolateMethod",argv[i]);
 636             break;
 637           }
 638         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 639       }
 640       case 'l':
 641       {
 642         if (LocaleCompare("limit",option+1) == 0)
 643           {
 644             char
 645               *p;
 646
 647             double
 648               value;
 649
 650             ssize_t
 651               resource;
 652
 653             if (*option == '+')
 654               break;
 655             i++;
 656             if (i == (ssize_t) argc)
 657               ThrowIdentifyException(OptionError,"MissingArgument",option);
 658             resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
 659               argv[i]);
 660             if (resource < 0)
 661               ThrowIdentifyException(OptionError,"UnrecognizedResourceType",
 662                 argv[i]);
 663             i++;
 664             if (i == (ssize_t) argc)
 665               ThrowIdentifyException(OptionError,"MissingArgument",option);
 666             value=StringToDouble(argv[i],&p);
 667             (void) value;
 668             if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
 669               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 670             break;
 671           }
 672         if (LocaleCompare("list",option+1) == 0)
 673           {
 674             ssize_t
 675               list;
 676
 677             if (*option == '+')
 678               break;
 679             i++;
 680             if (i == (ssize_t) argc)
 681               ThrowIdentifyException(OptionError,"MissingArgument",option);
 682             list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
 683             if (list < 0)
 684               ThrowIdentifyException(OptionError,"UnrecognizedListType",
 685                 argv[i]);
 686             status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
 687               argv+j,exception);
 688             DestroyIdentify();
 689             return(status != 0 ? MagickFalse : MagickTrue);
 690           }
 691         if (LocaleCompare("log",option+1) == 0)
 692           {
 693             if (*option == '+')
 694               break;
 695             i++;
 696             if ((i == (ssize_t) argc) ||
 697                 (strchr(argv[i],'%') == (char *) NULL))
 698               ThrowIdentifyException(OptionError,"MissingArgument",option);
 699             break;
 700           }
 701         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 702       }
 703       case 'm':
 704       {
 705         if (LocaleCompare("mask",option+1) == 0)
 706           {
 707             if (*option == '+')
 708               break;
 709             i++;
 710             if (i == (ssize_t) (argc-1))
 711               ThrowIdentifyException(OptionError,"MissingArgument",option);
 712             break;
 713           }
 714         if (LocaleCompare("matte",option+1) == 0)
 715           break;
 716         if (LocaleCompare("monitor",option+1) == 0)
 717           break;
 718         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 719       }
 720       case 'n':
 721       {
 722         if (LocaleCompare("negate",option+1) == 0)
 723           break;
 724         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 725       }
 726       case 'p':
 727       {
 728         if (LocaleCompare("ping",option+1) == 0)
 729           break;
 730         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 731       }
 732       case 'q':
 733       {
 734         if (LocaleCompare("quiet",option+1) == 0)
 735           break;
 736         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 737       }
 738       case 'r':
 739       {
 740         if (LocaleCompare("regard-warnings",option+1) == 0)
 741           break;
 742         if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
 743           {
 744             respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
 745             break;
 746           }
 747         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 748       }
 749       case 's':
 750       {
 751         if (LocaleCompare("sampling-factor",option+1) == 0)
 752           {
 753             if (*option == '+')
 754               break;
 755             i++;
 756             if (i == (ssize_t) argc)
 757               ThrowIdentifyException(OptionError,"MissingArgument",option);
 758             if (IsGeometry(argv[i]) == MagickFalse)
 759               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 760             break;
 761           }
 762         if (LocaleCompare("seed",option+1) == 0)
 763           {
 764             if (*option == '+')
 765               break;
 766             i++;
 767             if (i == (ssize_t) (argc-1))
 768               ThrowIdentifyException(OptionError,"MissingArgument",option);
 769             if (IsGeometry(argv[i]) == MagickFalse)
 770               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 771             break;
 772           }
 773         if (LocaleCompare("set",option+1) == 0)
 774           {
 775             i++;
 776             if (i == (ssize_t) argc)
 777               ThrowIdentifyException(OptionError,"MissingArgument",option);
 778             if (*option == '+')
 779               break;
 780             i++;
 781             if (i == (ssize_t) argc)
 782               ThrowIdentifyException(OptionError,"MissingArgument",option);
 783             break;
 784           }
 785         if (LocaleCompare("size",option+1) == 0)
 786           {
 787             if (*option == '+')
 788               break;
 789             i++;
 790             if (i == (ssize_t) argc)
 791               ThrowIdentifyException(OptionError,"MissingArgument",option);
 792             if (IsGeometry(argv[i]) == MagickFalse)
 793               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 794             break;
 795           }
 796         if (LocaleCompare("strip",option+1) == 0)
 797           break;
 798         if (LocaleCompare("support",option+1) == 0)
 799           {
 800             if (*option == '+')
 801               break;
 802             i++;
 803             if (i == (ssize_t) argc)
 804               ThrowIdentifyException(OptionError,"MissingArgument",option);
 805             if (IsGeometry(argv[i]) == MagickFalse)
 806               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 807             break;
 808           }
 809         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 810       }
 811       case 'u':
 812       {
 813         if (LocaleCompare("unique",option+1) == 0)
 814           break;
 815         if (LocaleCompare("units",option+1) == 0)
 816           {
 817             ssize_t
 818               units;
 819
 820             if (*option == '+')
 821               break;
 822             i++;
 823             if (i == (ssize_t) (argc-1))
 824               ThrowIdentifyException(OptionError,"MissingArgument",option);
 825             units=ParseCommandOption(MagickResolutionOptions,MagickFalse,
 826               argv[i]);
 827             if (units < 0)
 828               ThrowIdentifyException(OptionError,"UnrecognizedUnitsType",
 829                 argv[i]);
 830             break;
 831           }
 832         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 833       }
 834       case 'v':
 835       {
 836         if (LocaleCompare("verbose",option+1) == 0)
 837           break;
 838         if (LocaleCompare("virtual-pixel",option+1) == 0)
 839           {
 840             ssize_t
 841               method;
 842
 843             if (*option == '+')
 844               break;
 845             i++;
 846             if (i == (ssize_t) (argc-1))
 847               ThrowIdentifyException(OptionError,"MissingArgument",option);
 848             method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
 849               argv[i]);
 850             if (method < 0)
 851               ThrowIdentifyException(OptionError,
 852                 "UnrecognizedVirtualPixelMethod",argv[i]);
 853             break;
 854           }
 855         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 856       }
 857       case '?':
 858         break;
 859       default:
 860         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 861     }
 862     fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
 863       FireOptionFlag) == 0 ?  MagickFalse : MagickTrue;
 864     if (fire != MagickFalse)
 865       FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 866   }
 867   if (k != 0)
 868     ThrowIdentifyException(OptionError,"UnbalancedParenthesis",argv[i]);
 869   if (i != (ssize_t) argc)
 870     ThrowIdentifyException(OptionError,"MissingAnImageFilename",argv[i]);
 871   DestroyIdentify();
 872   return(status != 0 ? MagickTrue : MagickFalse);
 873 }