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       "-clip                clip along the first path from the 8BIM profile",
 122       "-clip-mask filename  associate a clip mask with the image",
 123       "-clip-path id        clip along a named path from the 8BIM profile",
 124       "-colorspace type     alternate image colorspace",
 125       "-crop geometry       cut out a rectangular region of the image",
 126       "-define format:option",
 127       "                     define one or more image format options",
 128       "-density geometry    horizontal and vertical density of the image",
 129       "-depth value         image depth",
 130       "-endian type         endianness (MSB or LSB) of the image",
 131       "-extract geometry    extract area from image",
 132       "-features distance   analyze image features (e.g. contrast, correlation)",
 133       "-format \"string\"     output formatted image characteristics",
 134       "-fuzz distance       colors within this distance are considered equal",
 135       "-gamma value         of gamma correction",
 136       "-interlace type      type of image interlacing scheme",
 137       "-interpolate method  pixel color interpolation method",
 138       "-limit type value    pixel cache resource limit",
 139       "-mask filename       associate a mask with the image",
 140       "-monitor             monitor progress",
 141       "-ping                efficiently determine image attributes",
 142       "-quiet               suppress all warning messages",
 143       "-regard-warnings     pay attention to warning messages",
 144       "-respect-parentheses settings remain in effect until parenthesis boundary",
 145       "-sampling-factor geometry",
 146       "                     horizontal and vertical sampling factor",
 147       "-seed value          seed a new sequence of pseudo-random numbers",
 148       "-set attribute value set an image attribute",
 149       "-size geometry       width and height of image",
 150       "-strip               strip image of all profiles and comments",
 151       "-unique              display the number of unique colors in the image",
 152       "-units type          the units of image resolution",
 153       "-verbose             print detailed information about the image",
 154       "-virtual-pixel method",
 155       "                     virtual pixel access method",
 156       (char *) NULL
 157     };
 158
 159   ListMagickVersion(stdout);
 160   (void) printf("Usage: %s [options ...] file [ [options ...] "
 161     "file ... ]\n",GetClientName());
 162   (void) printf("\nImage Settings:\n");
 163   for (p=settings; *p != (char *) NULL; p++)
 164     (void) printf("  %s\n",*p);
 165   (void) printf("\nImage Operators:\n");
 166   for (p=operators; *p != (char *) NULL; p++)
 167     (void) printf("  %s\n",*p);
 168   (void) printf("\nMiscellaneous Options:\n");
 169   for (p=miscellaneous; *p != (char *) NULL; p++)
 170     (void) printf("  %s\n",*p);
 171   (void) printf(
 172     "\nBy default, the image format of 'file' is determined by its magic\n");
 173   (void) printf(
 174     "number.  To specify a particular image format, precede the filename\n");
 175   (void) printf(
 176     "with an image format name and a colon (i.e. ps:image) or specify the\n");
 177   (void) printf(
 178     "image type as the filename suffix (i.e. image.ps).  Specify 'file' as\n");
 179   (void) printf("'-' for standard input or output.\n");
 180   return(MagickFalse);
 181 }
 182
 183 WandExport MagickBooleanType IdentifyImageCommand(ImageInfo *image_info,
 184   int argc,char **argv,char **metadata,ExceptionInfo *exception)
 185 {
 186 #define DestroyIdentify() \
 187 { \
 188   DestroyImageStack(); \
 189   for (i=0; i < (ssize_t) argc; i++) \
 190     argv[i]=DestroyString(argv[i]); \
 191   argv=(char **) RelinquishMagickMemory(argv); \
 192 }
 193 #define ThrowIdentifyException(asperity,tag,option) \
 194 { \
 195   (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"`%s'", \
 196     option); \
 197   DestroyIdentify(); \
 198   return(MagickFalse); \
 199 }
 200 #define ThrowIdentifyInvalidArgumentException(option,argument) \
 201 { \
 202   (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
 203     "InvalidArgument","'%s': %s",option,argument); \
 204   DestroyIdentify(); \
 205   return(MagickFalse); \
 206 }
 207
 208   const char
 209     *format,
 210     *option;
 211
 212   Image
 213     *image;
 214
 215   ImageStack
 216     image_stack[MaxImageStackDepth+1];
 217
 218   MagickBooleanType
 219     fire,
 220     pend,
 221     respect_parenthesis;
 222
 223   MagickStatusType
 224     status;
 225
 226   register ssize_t
 227     i;
 228
 229   size_t
 230     count;
 231
 232   ssize_t
 233     j,
 234     k;
 235
 236   /*
 237     Set defaults.
 238   */
 239   assert(image_info != (ImageInfo *) NULL);
 240   assert(image_info->signature == MagickSignature);
 241   if (image_info->debug != MagickFalse)
 242     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
 243   assert(exception != (ExceptionInfo *) NULL);
 244   if (argc == 2)
 245     {
 246       option=argv[1];
 247       if ((LocaleCompare("version",option+1) == 0) ||
 248           (LocaleCompare("-version",option+1) == 0))
 249         {
 250           ListMagickVersion(stdout);
 251           return(MagickFalse);
 252         }
 253     }
 254   if (argc < 2)
 255     return(IdentifyUsage());
 256   count=0;
 257   format=NULL;
 258   j=1;
 259   k=0;
 260   NewImageStack();
 261   option=(char *) NULL;
 262   pend=MagickFalse;
 263   respect_parenthesis=MagickFalse;
 264   status=MagickTrue;
 265   /*
 266     Identify an image.
 267   */
 268   ReadCommandlLine(argc,&argv);
 269   status=ExpandFilenames(&argc,&argv);
 270   if (status == MagickFalse)
 271     ThrowIdentifyException(ResourceLimitError,"MemoryAllocationFailed",
 272       GetExceptionMessage(errno));
 273   image_info->ping=MagickTrue;
 274   for (i=1; i < (ssize_t) argc; i++)
 275   {
 276     option=argv[i];
 277     if (LocaleCompare(option,"(") == 0)
 278       {
 279         FireImageStack(MagickFalse,MagickTrue,pend);
 280         if (k == MaxImageStackDepth)
 281           ThrowIdentifyException(OptionError,"ParenthesisNestedTooDeeply",
 282             option);
 283         PushImageStack();
 284         continue;
 285       }
 286     if (LocaleCompare(option,")") == 0)
 287       {
 288         FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 289         if (k == 0)
 290           ThrowIdentifyException(OptionError,"UnableToParseExpression",option);
 291         PopImageStack();
 292         continue;
 293       }
 294     if (IsCommandOption(option) == MagickFalse)
 295       {
 296         char
 297           *filename;
 298
 299         Image
 300           *images;
 301
 302         ImageInfo
 303           *identify_info;
 304
 305         /*
 306           Read input image.
 307         */
 308         FireImageStack(MagickFalse,MagickFalse,pend);
 309         identify_info=CloneImageInfo(image_info);
 310         identify_info->verbose=MagickFalse;
 311         filename=argv[i];
 312         if ((LocaleCompare(filename,"--") == 0) && (i < (ssize_t) (argc-1)))
 313           filename=argv[++i];
 314         if (identify_info->ping != MagickFalse)
 315           images=PingImages(identify_info,filename,exception);
 316         else
 317           images=ReadImages(identify_info,filename,exception);
 318         identify_info=DestroyImageInfo(identify_info);
 319         status&=(images != (Image *) NULL) &&
 320           (exception->severity < ErrorException);
 321         if (images == (Image *) NULL)
 322           continue;
 323         AppendImageStack(images);
 324         FinalizeImageSettings(image_info,image,MagickFalse);
 325         for ( ; image != (Image *) NULL; image=GetNextImageInList(image))
 326         {
 327           if (image->scene == 0)
 328             image->scene=count++;
 329           if (format == (char *) NULL)
 330             {
 331               (void) IdentifyImage(image,stdout,image_info->verbose,exception);
 332               continue;
 333             }
 334           if (metadata != (char **) NULL)
 335             {
 336               char
 337                 *text;
 338
 339               text=InterpretImageProperties(image_info,image,format,exception);
 340               if (text == (char *) NULL)
 341                 ThrowIdentifyException(ResourceLimitError,
 342                   "MemoryAllocationFailed",GetExceptionMessage(errno));
 343               (void) ConcatenateString(&(*metadata),text);
 344               text=DestroyString(text);
 345               if (LocaleCompare(format,"%n") == 0)
 346                 break;
 347             }
 348         }
 349         RemoveAllImageStack();
 350         continue;
 351       }
 352     pend=image != (Image *) NULL ? MagickTrue : MagickFalse;
 353     switch (*(option+1))
 354     {
 355       case 'a':
 356       {
 357         if (LocaleCompare("alpha",option+1) == 0)
 358           {
 359             ssize_t
 360               type;
 361
 362             if (*option == '+')
 363               break;
 364             i++;
 365             if (i == (ssize_t) argc)
 366               ThrowIdentifyException(OptionError,"MissingArgument",option);
 367             type=ParseCommandOption(MagickAlphaChannelOptions,MagickFalse,
 368               argv[i]);
 369             if (type < 0)
 370               ThrowIdentifyException(OptionError,
 371                 "UnrecognizedAlphaChannelOption",argv[i]);
 372             break;
 373           }
 374         if (LocaleCompare("antialias",option+1) == 0)
 375           break;
 376         if (LocaleCompare("authenticate",option+1) == 0)
 377           {
 378             if (*option == '+')
 379               break;
 380             i++;
 381             if (i == (ssize_t) (argc-1))
 382               ThrowIdentifyException(OptionError,"MissingArgument",option);
 383             break;
 384           }
 385         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 386       }
 387       case 'c':
 388       {
 389         if (LocaleCompare("cache",option+1) == 0)
 390           {
 391             if (*option == '+')
 392               break;
 393             i++;
 394             if (i == (ssize_t) argc)
 395               ThrowIdentifyException(OptionError,"MissingArgument",option);
 396             if (IsGeometry(argv[i]) == MagickFalse)
 397               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 398             break;
 399           }
 400         if (LocaleCompare("channel",option+1) == 0)
 401           {
 402             ssize_t
 403               channel;
 404
 405             if (*option == '+')
 406               break;
 407             i++;
 408             if (i == (ssize_t) (argc-1))
 409               ThrowIdentifyException(OptionError,"MissingArgument",option);
 410             channel=ParseChannelOption(argv[i]);
 411             if (channel < 0)
 412               ThrowIdentifyException(OptionError,"UnrecognizedChannelType",
 413                 argv[i]);
 414             break;
 415           }
 416         if (LocaleCompare("clip",option+1) == 0)
 417           break;
 418         if (LocaleCompare("clip-mask",option+1) == 0)
 419           {
 420             if (*option == '+')
 421               break;
 422             i++;
 423             if (i == (ssize_t) (argc-1))
 424               ThrowIdentifyException(OptionError,"MissingArgument",option);
 425             break;
 426           }
 427         if (LocaleCompare("clip-path",option+1) == 0)
 428           {
 429             i++;
 430             if (i == (ssize_t) (argc-1))
 431               ThrowIdentifyException(OptionError,"MissingArgument",option);
 432             break;
 433           }
 434         if (LocaleCompare("colorspace",option+1) == 0)
 435           {
 436             ssize_t
 437               colorspace;
 438
 439             if (*option == '+')
 440               break;
 441             i++;
 442             if (i == (ssize_t) (argc-1))
 443               ThrowIdentifyException(OptionError,"MissingArgument",option);
 444             colorspace=ParseCommandOption(MagickColorspaceOptions,
 445               MagickFalse,argv[i]);
 446             if (colorspace < 0)
 447               ThrowIdentifyException(OptionError,"UnrecognizedColorspace",
 448                 argv[i]);
 449             break;
 450           }
 451         if (LocaleCompare("crop",option+1) == 0)
 452           {
 453             if (*option == '+')
 454               break;
 455             i++;
 456             if (i == (ssize_t) (argc-1))
 457               ThrowIdentifyException(OptionError,"MissingArgument",option);
 458             if (IsGeometry(argv[i]) == MagickFalse)
 459               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 460             image_info->ping=MagickFalse;
 461             break;
 462           }
 463         if (LocaleCompare("concurrent",option+1) == 0)
 464           break;
 465         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 466       }
 467       case 'd':
 468       {
 469         if (LocaleCompare("debug",option+1) == 0)
 470           {
 471             ssize_t
 472               event;
 473
 474             if (*option == '+')
 475               break;
 476             i++;
 477             if (i == (ssize_t) argc)
 478               ThrowIdentifyException(OptionError,"MissingArgument",option);
 479             event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
 480             if (event < 0)
 481               ThrowIdentifyException(OptionError,"UnrecognizedEventType",
 482                 argv[i]);
 483             (void) SetLogEventMask(argv[i]);
 484             break;
 485           }
 486         if (LocaleCompare("define",option+1) == 0)
 487           {
 488             i++;
 489             if (i == (ssize_t) argc)
 490               ThrowIdentifyException(OptionError,"MissingArgument",option);
 491             if (*option == '+')
 492               {
 493                 const char
 494                   *define;
 495
 496                 define=GetImageOption(image_info,argv[i]);
 497                 if (define == (const char *) NULL)
 498                   ThrowIdentifyException(OptionError,"NoSuchOption",argv[i]);
 499                 break;
 500               }
 501             break;
 502           }
 503         if (LocaleCompare("density",option+1) == 0)
 504           {
 505             if (*option == '+')
 506               break;
 507             i++;
 508             if (i == (ssize_t) argc)
 509               ThrowIdentifyException(OptionError,"MissingArgument",option);
 510             if (IsGeometry(argv[i]) == MagickFalse)
 511               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 512             break;
 513           }
 514         if (LocaleCompare("depth",option+1) == 0)
 515           {
 516             if (*option == '+')
 517               break;
 518             i++;
 519             if (i == (ssize_t) argc)
 520               ThrowIdentifyException(OptionError,"MissingArgument",option);
 521             if (IsGeometry(argv[i]) == MagickFalse)
 522               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 523             break;
 524           }
 525         if (LocaleCompare("duration",option+1) == 0)
 526           {
 527             if (*option == '+')
 528               break;
 529             i++;
 530             if (i == (ssize_t) (argc-1))
 531               ThrowIdentifyException(OptionError,"MissingArgument",option);
 532             if (IsGeometry(argv[i]) == MagickFalse)
 533               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 534             break;
 535           }
 536         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 537       }
 538       case 'e':
 539       {
 540         if (LocaleCompare("endian",option+1) == 0)
 541           {
 542             ssize_t
 543               endian;
 544
 545             if (*option == '+')
 546               break;
 547             i++;
 548             if (i == (ssize_t) (argc-1))
 549               ThrowIdentifyException(OptionError,"MissingArgument",option);
 550             endian=ParseCommandOption(MagickEndianOptions,MagickFalse,
 551               argv[i]);
 552             if (endian < 0)
 553               ThrowIdentifyException(OptionError,"UnrecognizedEndianType",
 554                 argv[i]);
 555             break;
 556           }
 557         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 558       }
 559       case 'f':
 560       {
 561         if (LocaleCompare("features",option+1) == 0)
 562           {
 563             if (*option == '+')
 564               break;
 565             i++;
 566             if (i == (ssize_t) (argc-1))
 567               ThrowIdentifyException(OptionError,"MissingArgument",option);
 568             if (IsGeometry(argv[i]) == MagickFalse)
 569               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 570             break;
 571           }
 572         if (LocaleCompare("format",option+1) == 0)
 573           {
 574             format=(char *) NULL;
 575             if (*option == '+')
 576               break;
 577             i++;
 578             if (i == (ssize_t) argc)
 579               ThrowIdentifyException(OptionError,"MissingArgument",option);
 580             format=argv[i];
 581             break;
 582           }
 583         if (LocaleCompare("fuzz",option+1) == 0)
 584           {
 585             if (*option == '+')
 586               break;
 587             i++;
 588             if (i == (ssize_t) (argc-1))
 589               ThrowIdentifyException(OptionError,"MissingArgument",option);
 590             if (IsGeometry(argv[i]) == MagickFalse)
 591               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 592             break;
 593           }
 594         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 595       }
 596       case 'g':
 597       {
 598         if (LocaleCompare("gamma",option+1) == 0)
 599           {
 600             i++;
 601             if (i == (ssize_t) (argc-1))
 602               ThrowIdentifyException(OptionError,"MissingArgument",option);
 603             if (IsGeometry(argv[i]) == MagickFalse)
 604               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 605             break;
 606           }
 607         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 608       }
 609       case 'h':
 610       {
 611         if ((LocaleCompare("help",option+1) == 0) ||
 612             (LocaleCompare("-help",option+1) == 0))
 613           return(IdentifyUsage());
 614         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 615       }
 616       case 'i':
 617       {
 618         if (LocaleCompare("interlace",option+1) == 0)
 619           {
 620             ssize_t
 621               interlace;
 622
 623             if (*option == '+')
 624               break;
 625             i++;
 626             if (i == (ssize_t) argc)
 627               ThrowIdentifyException(OptionError,"MissingArgument",option);
 628             interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
 629               argv[i]);
 630             if (interlace < 0)
 631               ThrowIdentifyException(OptionError,
 632                 "UnrecognizedInterlaceType",argv[i]);
 633             break;
 634           }
 635         if (LocaleCompare("interpolate",option+1) == 0)
 636           {
 637             ssize_t
 638               interpolate;
 639
 640             if (*option == '+')
 641               break;
 642             i++;
 643             if (i == (ssize_t) argc)
 644               ThrowIdentifyException(OptionError,"MissingArgument",option);
 645             interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
 646               argv[i]);
 647             if (interpolate < 0)
 648               ThrowIdentifyException(OptionError,
 649                 "UnrecognizedInterpolateMethod",argv[i]);
 650             break;
 651           }
 652         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 653       }
 654       case 'l':
 655       {
 656         if (LocaleCompare("limit",option+1) == 0)
 657           {
 658             char
 659               *p;
 660
 661             double
 662               value;
 663
 664             ssize_t
 665               resource;
 666
 667             if (*option == '+')
 668               break;
 669             i++;
 670             if (i == (ssize_t) argc)
 671               ThrowIdentifyException(OptionError,"MissingArgument",option);
 672             resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
 673               argv[i]);
 674             if (resource < 0)
 675               ThrowIdentifyException(OptionError,"UnrecognizedResourceType",
 676                 argv[i]);
 677             i++;
 678             if (i == (ssize_t) argc)
 679               ThrowIdentifyException(OptionError,"MissingArgument",option);
 680             value=StringToDouble(argv[i],&p);
 681             (void) value;
 682             if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
 683               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 684             break;
 685           }
 686         if (LocaleCompare("list",option+1) == 0)
 687           {
 688             ssize_t
 689               list;
 690
 691             if (*option == '+')
 692               break;
 693             i++;
 694             if (i == (ssize_t) argc)
 695               ThrowIdentifyException(OptionError,"MissingArgument",option);
 696             list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
 697             if (list < 0)
 698               ThrowIdentifyException(OptionError,"UnrecognizedListType",
 699                 argv[i]);
 700             status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
 701               argv+j,exception);
 702             DestroyIdentify();
 703             return(status != 0 ? MagickFalse : MagickTrue);
 704           }
 705         if (LocaleCompare("log",option+1) == 0)
 706           {
 707             if (*option == '+')
 708               break;
 709             i++;
 710             if ((i == (ssize_t) argc) ||
 711                 (strchr(argv[i],'%') == (char *) NULL))
 712               ThrowIdentifyException(OptionError,"MissingArgument",option);
 713             break;
 714           }
 715         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 716       }
 717       case 'm':
 718       {
 719         if (LocaleCompare("mask",option+1) == 0)
 720           {
 721             if (*option == '+')
 722               break;
 723             i++;
 724             if (i == (ssize_t) (argc-1))
 725               ThrowIdentifyException(OptionError,"MissingArgument",option);
 726             break;
 727           }
 728         if (LocaleCompare("matte",option+1) == 0)
 729           break;
 730         if (LocaleCompare("monitor",option+1) == 0)
 731           break;
 732         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 733       }
 734       case 'n':
 735       {
 736         if (LocaleCompare("negate",option+1) == 0)
 737           break;
 738         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 739       }
 740       case 'p':
 741       {
 742         if (LocaleCompare("ping",option+1) == 0)
 743           break;
 744         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 745       }
 746       case 'q':
 747       {
 748         if (LocaleCompare("quiet",option+1) == 0)
 749           break;
 750         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 751       }
 752       case 'r':
 753       {
 754         if (LocaleCompare("regard-warnings",option+1) == 0)
 755           break;
 756         if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
 757           {
 758             respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
 759             break;
 760           }
 761         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 762       }
 763       case 's':
 764       {
 765         if (LocaleCompare("sampling-factor",option+1) == 0)
 766           {
 767             if (*option == '+')
 768               break;
 769             i++;
 770             if (i == (ssize_t) argc)
 771               ThrowIdentifyException(OptionError,"MissingArgument",option);
 772             if (IsGeometry(argv[i]) == MagickFalse)
 773               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 774             break;
 775           }
 776         if (LocaleCompare("seed",option+1) == 0)
 777           {
 778             if (*option == '+')
 779               break;
 780             i++;
 781             if (i == (ssize_t) (argc-1))
 782               ThrowIdentifyException(OptionError,"MissingArgument",option);
 783             if (IsGeometry(argv[i]) == MagickFalse)
 784               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 785             break;
 786           }
 787         if (LocaleCompare("set",option+1) == 0)
 788           {
 789             i++;
 790             if (i == (ssize_t) argc)
 791               ThrowIdentifyException(OptionError,"MissingArgument",option);
 792             if (*option == '+')
 793               break;
 794             i++;
 795             if (i == (ssize_t) argc)
 796               ThrowIdentifyException(OptionError,"MissingArgument",option);
 797             break;
 798           }
 799         if (LocaleCompare("size",option+1) == 0)
 800           {
 801             if (*option == '+')
 802               break;
 803             i++;
 804             if (i == (ssize_t) argc)
 805               ThrowIdentifyException(OptionError,"MissingArgument",option);
 806             if (IsGeometry(argv[i]) == MagickFalse)
 807               ThrowIdentifyInvalidArgumentException(option,argv[i]);
 808             break;
 809           }
 810         if (LocaleCompare("strip",option+1) == 0)
 811           break;
 812         if (LocaleCompare("support",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         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 824       }
 825       case 'u':
 826       {
 827         if (LocaleCompare("unique",option+1) == 0)
 828           break;
 829         if (LocaleCompare("units",option+1) == 0)
 830           {
 831             ssize_t
 832               units;
 833
 834             if (*option == '+')
 835               break;
 836             i++;
 837             if (i == (ssize_t) (argc-1))
 838               ThrowIdentifyException(OptionError,"MissingArgument",option);
 839             units=ParseCommandOption(MagickResolutionOptions,MagickFalse,
 840               argv[i]);
 841             if (units < 0)
 842               ThrowIdentifyException(OptionError,"UnrecognizedUnitsType",
 843                 argv[i]);
 844             break;
 845           }
 846         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 847       }
 848       case 'v':
 849       {
 850         if (LocaleCompare("verbose",option+1) == 0)
 851           break;
 852         if (LocaleCompare("virtual-pixel",option+1) == 0)
 853           {
 854             ssize_t
 855               method;
 856
 857             if (*option == '+')
 858               break;
 859             i++;
 860             if (i == (ssize_t) (argc-1))
 861               ThrowIdentifyException(OptionError,"MissingArgument",option);
 862             method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
 863               argv[i]);
 864             if (method < 0)
 865               ThrowIdentifyException(OptionError,
 866                 "UnrecognizedVirtualPixelMethod",argv[i]);
 867             break;
 868           }
 869         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 870       }
 871       case '?':
 872         break;
 873       default:
 874         ThrowIdentifyException(OptionError,"UnrecognizedOption",option)
 875     }
 876     fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
 877       FireOptionFlag) == 0 ?  MagickFalse : MagickTrue;
 878     if (fire != MagickFalse)
 879       FireImageStack(MagickFalse,MagickTrue,MagickTrue);
 880   }
 881   if (k != 0)
 882     ThrowIdentifyException(OptionError,"UnbalancedParenthesis",argv[i]);
 883   if (i != (ssize_t) argc)
 884     ThrowIdentifyException(OptionError,"MissingAnImageFilename",argv[i]);
 885   DestroyIdentify();
 886   return(status != 0 ? MagickTrue : MagickFalse);
 887 }