granicus.if.org Git - imagemagick/blob - MagickCore/property.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %            PPPP    RRRR    OOO   PPPP   EEEEE  RRRR   TTTTT  Y   Y          %
   7 %            P   P   R   R  O   O  P   P  E      R   R    T     Y Y           %
   8 %            PPPP    RRRR   O   O  PPPP   EEE    RRRR     T      Y            %
   9 %            P       R R    O   O  P      E      R R      T      Y            %
  10 %            P       R  R    OOO   P      EEEEE  R  R     T      Y            %
  11 %                                                                             %
  12 %                                                                             %
  13 %                         MagickCore Property Methods                         %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                   Cristy                                    %
  17 %                                 March 2000                                  %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2014 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 %
  37 %
  38 */
  39
  40
  41 /*
  42   Include declarations.
  43 */
  44 #include "MagickCore/studio.h"
  45 #include "MagickCore/artifact.h"
  46 #include "MagickCore/attribute.h"
  47 #include "MagickCore/cache.h"
  48 #include "MagickCore/cache-private.h"
  49 #include "MagickCore/color.h"
  50 #include "MagickCore/color-private.h"
  51 #include "MagickCore/colorspace-private.h"
  52 #include "MagickCore/compare.h"
  53 #include "MagickCore/constitute.h"
  54 #include "MagickCore/draw.h"
  55 #include "MagickCore/effect.h"
  56 #include "MagickCore/exception.h"
  57 #include "MagickCore/exception-private.h"
  58 #include "MagickCore/fx.h"
  59 #include "MagickCore/fx-private.h"
  60 #include "MagickCore/gem.h"
  61 #include "MagickCore/geometry.h"
  62 #include "MagickCore/histogram.h"
  63 #include "MagickCore/image.h"
  64 #include "MagickCore/layer.h"
  65 #include "MagickCore/locale-private.h"
  66 #include "MagickCore/list.h"
  67 #include "MagickCore/magick.h"
  68 #include "MagickCore/memory_.h"
  69 #include "MagickCore/monitor.h"
  70 #include "MagickCore/montage.h"
  71 #include "MagickCore/option.h"
  72 #include "MagickCore/profile.h"
  73 #include "MagickCore/property.h"
  74 #include "MagickCore/quantum.h"
  75 #include "MagickCore/resource_.h"
  76 #include "MagickCore/splay-tree.h"
  77 #include "MagickCore/signature.h"
  78 #include "MagickCore/statistic.h"
  79 #include "MagickCore/string_.h"
  80 #include "MagickCore/string-private.h"
  81 #include "MagickCore/token.h"
  82 #include "MagickCore/token-private.h"
  83 #include "MagickCore/utility.h"
  84 #include "MagickCore/utility-private.h"
  85 #include "MagickCore/version.h"
  86 #include "MagickCore/xml-tree.h"
  87 #include "MagickCore/xml-tree-private.h"
  88 #if defined(MAGICKCORE_LCMS_DELEGATE)
  89 #if defined(MAGICKCORE_HAVE_LCMS_LCMS2_H)
  90 #include <lcms/lcms2.h>
  91 #elif defined(MAGICKCORE_HAVE_LCMS2_H)
  92 #include "lcms2.h"
  93 #elif defined(MAGICKCORE_HAVE_LCMS_LCMS_H)
  94 #include <lcms/lcms.h>
  95 #else
  96 #include "lcms.h"
  97 #endif
  98 #endif
  99 \f
 100 /*
 101   Define declarations.
 102 */
 103 #if defined(MAGICKCORE_LCMS_DELEGATE)
 104 #if defined(LCMS_VERSION) && (LCMS_VERSION < 2000)
 105 #define cmsUInt32Number  DWORD
 106 #endif
 107 #endif
 108 \f
 109 /*
 110 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 111 %                                                                             %
 112 %                                                                             %
 113 %                                                                             %
 114 %   C l o n e I m a g e P r o p e r t i e s                                   %
 115 %                                                                             %
 116 %                                                                             %
 117 %                                                                             %
 118 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 119 %
 120 %  CloneImageProperties() clones all the image properties to another image.
 121 %
 122 %  The format of the CloneImageProperties method is:
 123 %
 124 %      MagickBooleanType CloneImageProperties(Image *image,
 125 %        const Image *clone_image)
 126 %
 127 %  A description of each parameter follows:
 128 %
 129 %    o image: the image.
 130 %
 131 %    o clone_image: the clone image.
 132 %
 133 */
 134 MagickExport MagickBooleanType CloneImageProperties(Image *image,
 135   const Image *clone_image)
 136 {
 137   assert(image != (Image *) NULL);
 138   assert(image->signature == MagickSignature);
 139   if( IfMagickTrue(image->debug) )
 140     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 141   assert(clone_image != (const Image *) NULL);
 142   assert(clone_image->signature == MagickSignature);
 143   if( IfMagickTrue(clone_image->debug) )
 144     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 145       clone_image->filename);
 146   (void) CopyMagickString(image->filename,clone_image->filename,MaxTextExtent);
 147   (void) CopyMagickString(image->magick_filename,clone_image->magick_filename,
 148     MaxTextExtent);
 149   image->compression=clone_image->compression;
 150   image->quality=clone_image->quality;
 151   image->depth=clone_image->depth;
 152   image->background_color=clone_image->background_color;
 153   image->border_color=clone_image->border_color;
 154   image->matte_color=clone_image->matte_color;
 155   image->transparent_color=clone_image->transparent_color;
 156   image->gamma=clone_image->gamma;
 157   image->chromaticity=clone_image->chromaticity;
 158   image->rendering_intent=clone_image->rendering_intent;
 159   image->black_point_compensation=clone_image->black_point_compensation;
 160   image->units=clone_image->units;
 161   image->montage=(char *) NULL;
 162   image->directory=(char *) NULL;
 163   (void) CloneString(&image->geometry,clone_image->geometry);
 164   image->offset=clone_image->offset;
 165   image->resolution.x=clone_image->resolution.x;
 166   image->resolution.y=clone_image->resolution.y;
 167   image->page=clone_image->page;
 168   image->tile_offset=clone_image->tile_offset;
 169   image->extract_info=clone_image->extract_info;
 170   image->filter=clone_image->filter;
 171   image->fuzz=clone_image->fuzz;
 172   image->intensity=clone_image->intensity;
 173   image->interlace=clone_image->interlace;
 174   image->interpolate=clone_image->interpolate;
 175   image->endian=clone_image->endian;
 176   image->gravity=clone_image->gravity;
 177   image->compose=clone_image->compose;
 178   image->scene=clone_image->scene;
 179   image->orientation=clone_image->orientation;
 180   image->dispose=clone_image->dispose;
 181   image->delay=clone_image->delay;
 182   image->ticks_per_second=clone_image->ticks_per_second;
 183   image->iterations=clone_image->iterations;
 184   image->total_colors=clone_image->total_colors;
 185   image->taint=clone_image->taint;
 186   image->progress_monitor=clone_image->progress_monitor;
 187   image->client_data=clone_image->client_data;
 188   image->start_loop=clone_image->start_loop;
 189   image->error=clone_image->error;
 190   image->signature=clone_image->signature;
 191   if (clone_image->properties != (void *) NULL)
 192     {
 193       if (image->properties != (void *) NULL)
 194         DestroyImageProperties(image);
 195       image->properties=CloneSplayTree((SplayTreeInfo *)
 196         clone_image->properties,(void *(*)(void *)) ConstantString,
 197         (void *(*)(void *)) ConstantString);
 198     }
 199   return(MagickTrue);
 200 }
 201 \f
 202 /*
 203 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 204 %                                                                             %
 205 %                                                                             %
 206 %                                                                             %
 207 %   D e f i n e I m a g e P r o p e r t y                                     %
 208 %                                                                             %
 209 %                                                                             %
 210 %                                                                             %
 211 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 212 %
 213 %  DefineImageProperty() associates an assignment string of the form
 214 %  "key=value" with an artifact or options. It is equivelent to
 215 %  SetImageProperty()
 216 %
 217 %  The format of the DefineImageProperty method is:
 218 %
 219 %      MagickBooleanType DefineImageProperty(Image *image,const char *property,
 220 %        ExceptionInfo *exception)
 221 %
 222 %  A description of each parameter follows:
 223 %
 224 %    o image: the image.
 225 %
 226 %    o property: the image property.
 227 %
 228 %    o exception: return any errors or warnings in this structure.
 229 %
 230 */
 231 MagickExport MagickBooleanType DefineImageProperty(Image *image,
 232   const char *property,ExceptionInfo *exception)
 233 {
 234   char
 235     key[MaxTextExtent],
 236     value[MaxTextExtent];
 237
 238   register char
 239     *p;
 240
 241   assert(image != (Image *) NULL);
 242   assert(property != (const char *) NULL);
 243   (void) CopyMagickString(key,property,MaxTextExtent-1);
 244   for (p=key; *p != '\0'; p++)
 245     if (*p == '=')
 246       break;
 247   *value='\0';
 248   if (*p == '=')
 249     (void) CopyMagickString(value,p+1,MaxTextExtent);
 250   *p='\0';
 251   return(SetImageProperty(image,key,value,exception));
 252 }
 253 \f
 254 /*
 255 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 256 %                                                                             %
 257 %                                                                             %
 258 %                                                                             %
 259 %   D e l e t e I m a g e P r o p e r t y                                     %
 260 %                                                                             %
 261 %                                                                             %
 262 %                                                                             %
 263 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 264 %
 265 %  DeleteImageProperty() deletes an image property.
 266 %
 267 %  The format of the DeleteImageProperty method is:
 268 %
 269 %      MagickBooleanType DeleteImageProperty(Image *image,const char *property)
 270 %
 271 %  A description of each parameter follows:
 272 %
 273 %    o image: the image.
 274 %
 275 %    o property: the image property.
 276 %
 277 */
 278 MagickExport MagickBooleanType DeleteImageProperty(Image *image,
 279   const char *property)
 280 {
 281   assert(image != (Image *) NULL);
 282   assert(image->signature == MagickSignature);
 283   if( IfMagickTrue(image->debug) )
 284     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 285       image->filename);
 286   if (image->properties == (void *) NULL)
 287     return(MagickFalse);
 288   return(DeleteNodeFromSplayTree((SplayTreeInfo *) image->properties,property));
 289 }
 290 \f
 291 /*
 292 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 293 %                                                                             %
 294 %                                                                             %
 295 %                                                                             %
 296 %   D e s t r o y I m a g e P r o p e r t i e s                               %
 297 %                                                                             %
 298 %                                                                             %
 299 %                                                                             %
 300 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 301 %
 302 %  DestroyImageProperties() destroys all properties and associated memory
 303 %  attached to the given image.
 304 %
 305 %  The format of the DestroyDefines method is:
 306 %
 307 %      void DestroyImageProperties(Image *image)
 308 %
 309 %  A description of each parameter follows:
 310 %
 311 %    o image: the image.
 312 %
 313 */
 314 MagickExport void DestroyImageProperties(Image *image)
 315 {
 316   assert(image != (Image *) NULL);
 317   assert(image->signature == MagickSignature);
 318   if( IfMagickTrue(image->debug) )
 319     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 320       image->filename);
 321   if (image->properties != (void *) NULL)
 322     image->properties=(void *) DestroySplayTree((SplayTreeInfo *)
 323       image->properties);
 324 }
 325 \f
 326 /*
 327 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 328 %                                                                             %
 329 %                                                                             %
 330 %                                                                             %
 331 %  F o r m a t I m a g e P r o p e r t y                                      %
 332 %                                                                             %
 333 %                                                                             %
 334 %                                                                             %
 335 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 336 %
 337 %  FormatImageProperty() permits formatted property/value pairs to be saved as
 338 %  an image property.
 339 %
 340 %  The format of the FormatImageProperty method is:
 341 %
 342 %      MagickBooleanType FormatImageProperty(Image *image,const char *property,
 343 %        const char *format,...)
 344 %
 345 %  A description of each parameter follows.
 346 %
 347 %   o  image:  The image.
 348 %
 349 %   o  property:  The attribute property.
 350 %
 351 %   o  format:  A string describing the format to use to write the remaining
 352 %      arguments.
 353 %
 354 */
 355 MagickExport MagickBooleanType FormatImageProperty(Image *image,
 356   const char *property,const char *format,...)
 357 {
 358   char
 359     value[MaxTextExtent];
 360
 361   ExceptionInfo
 362     *exception;
 363
 364   MagickBooleanType
 365     status;
 366
 367   ssize_t
 368     n;
 369
 370   va_list
 371     operands;
 372
 373   va_start(operands,format);
 374   n=FormatLocaleStringList(value,MaxTextExtent,format,operands);
 375   (void) n;
 376   va_end(operands);
 377   exception=AcquireExceptionInfo();
 378   status=SetImageProperty(image,property,value,exception);
 379   exception=DestroyExceptionInfo(exception);
 380   return(status);
 381 }
 382 \f
 383 /*
 384 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 385 %                                                                             %
 386 %                                                                             %
 387 %                                                                             %
 388 %   G e t I m a g e P r o p e r t y                                           %
 389 %                                                                             %
 390 %                                                                             %
 391 %                                                                             %
 392 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 393 %
 394 %  GetImageProperty() gets a value associated with an image property.
 395 %
 396 %  This includes,  profile prefixes, such as "exif:", "iptc:" and "8bim:"
 397 %  It does not handle non-prifile prefixes, such as "fx:", "option:", or
 398 %  "artifact:".
 399 %
 400 %  The returned string is stored as a properity of the same name for faster
 401 %  lookup later. It should NOT be freed by the caller.
 402 %
 403 %  The format of the GetImageProperty method is:
 404 %
 405 %      const char *GetImageProperty(const Image *image,const char *key,
 406 %        ExceptionInfo *exception)
 407 %
 408 %  A description of each parameter follows:
 409 %
 410 %    o image: the image.
 411 %
 412 %    o key: the key.
 413 %
 414 %    o exception: return any errors or warnings in this structure.
 415 %
 416 */
 417
 418 static char
 419   *TracePSClippath(const unsigned char *,size_t,const size_t,
 420     const size_t),
 421   *TraceSVGClippath(const unsigned char *,size_t,const size_t,
 422     const size_t);
 423
 424 static MagickBooleanType GetIPTCProperty(const Image *image,const char *key,
 425   ExceptionInfo *exception)
 426 {
 427   char
 428     *attribute,
 429     *message;
 430
 431   const StringInfo
 432     *profile;
 433
 434   long
 435     count,
 436     dataset,
 437     record;
 438
 439   register ssize_t
 440     i;
 441
 442   size_t
 443     length;
 444
 445   profile=GetImageProfile(image,"iptc");
 446   if (profile == (StringInfo *) NULL)
 447     profile=GetImageProfile(image,"8bim");
 448   if (profile == (StringInfo *) NULL)
 449     return(MagickFalse);
 450   count=sscanf(key,"IPTC:%ld:%ld",&dataset,&record);
 451   if (count != 2)
 452     return(MagickFalse);
 453   attribute=(char *) NULL;
 454   for (i=0; i < (ssize_t) GetStringInfoLength(profile); i+=(ssize_t) length)
 455   {
 456     length=1;
 457     if ((ssize_t) GetStringInfoDatum(profile)[i] != 0x1c)
 458       continue;
 459     length=(size_t) (GetStringInfoDatum(profile)[i+3] << 8);
 460     length|=GetStringInfoDatum(profile)[i+4];
 461     if (((long) GetStringInfoDatum(profile)[i+1] == dataset) &&
 462         ((long) GetStringInfoDatum(profile)[i+2] == record))
 463       {
 464         message=(char *) NULL;
 465         if (~length >= 1)
 466           message=(char *) AcquireQuantumMemory(length+1UL,sizeof(*message));
 467         if (message != (char *) NULL)
 468           {
 469             (void) CopyMagickString(message,(char *) GetStringInfoDatum(
 470               profile)+i+5,length+1);
 471             (void) ConcatenateString(&attribute,message);
 472             (void) ConcatenateString(&attribute,";");
 473             message=DestroyString(message);
 474           }
 475       }
 476     i+=5;
 477   }
 478   if ((attribute == (char *) NULL) || (*attribute == ';'))
 479     {
 480       if (attribute != (char *) NULL)
 481         attribute=DestroyString(attribute);
 482       return(MagickFalse);
 483     }
 484   attribute[strlen(attribute)-1]='\0';
 485   (void) SetImageProperty((Image *) image,key,(const char *) attribute,
 486     exception);
 487   attribute=DestroyString(attribute);
 488   return(MagickTrue);
 489 }
 490
 491 static inline ssize_t MagickMax(const ssize_t x,const ssize_t y)
 492 {
 493   if (x > y)
 494     return(x);
 495   return(y);
 496 }
 497
 498 static inline ssize_t MagickMin(const ssize_t x,const ssize_t y)
 499 {
 500   if (x < y)
 501     return(x);
 502   return(y);
 503 }
 504
 505 static inline int ReadPropertyByte(const unsigned char **p,size_t *length)
 506 {
 507   int
 508     c;
 509
 510   if (*length < 1)
 511     return(EOF);
 512   c=(int) (*(*p)++);
 513   (*length)--;
 514   return(c);
 515 }
 516
 517 static inline size_t ReadPropertyMSBLong(const unsigned char **p,
 518   size_t *length)
 519 {
 520   int
 521     c;
 522
 523   register ssize_t
 524     i;
 525
 526   unsigned char
 527     buffer[4];
 528
 529   size_t
 530     value;
 531
 532   if (*length < 4)
 533     return(~0UL);
 534   for (i=0; i < 4; i++)
 535   {
 536     c=(int) (*(*p)++);
 537     (*length)--;
 538     buffer[i]=(unsigned char) c;
 539   }
 540   value=(size_t) (buffer[0] << 24);
 541   value|=buffer[1] << 16;
 542   value|=buffer[2] << 8;
 543   value|=buffer[3];
 544   return(value & 0xffffffff);
 545 }
 546
 547 static inline unsigned short ReadPropertyMSBShort(const unsigned char **p,
 548   size_t *length)
 549 {
 550   int
 551     c;
 552
 553   register ssize_t
 554     i;
 555
 556   unsigned char
 557     buffer[2];
 558
 559   unsigned short
 560     value;
 561
 562   if (*length < 2)
 563     return((unsigned short) ~0);
 564   for (i=0; i < 2; i++)
 565   {
 566     c=(int) (*(*p)++);
 567     (*length)--;
 568     buffer[i]=(unsigned char) c;
 569   }
 570   value=(unsigned short) (buffer[0] << 8);
 571   value|=buffer[1];
 572   return((unsigned short) (value & 0xffff));
 573 }
 574
 575 static MagickBooleanType Get8BIMProperty(const Image *image,const char *key,
 576   ExceptionInfo *exception)
 577 {
 578   char
 579     *attribute,
 580     format[MaxTextExtent],
 581     name[MaxTextExtent],
 582     *resource;
 583
 584   const StringInfo
 585     *profile;
 586
 587   const unsigned char
 588     *info;
 589
 590   long
 591     start,
 592     stop;
 593
 594   MagickBooleanType
 595     status;
 596
 597   register ssize_t
 598     i;
 599
 600   ssize_t
 601     count,
 602     id,
 603     sub_number;
 604
 605   size_t
 606     length;
 607
 608   /*
 609     There are no newlines in path names, so it's safe as terminator.
 610   */
 611   profile=GetImageProfile(image,"8bim");
 612   if (profile == (StringInfo *) NULL)
 613     return(MagickFalse);
 614   count=(ssize_t) sscanf(key,"8BIM:%ld,%ld:%[^\n]\n%[^\n]",&start,&stop,name,
 615     format);
 616   if ((count != 2) && (count != 3) && (count != 4))
 617     return(MagickFalse);
 618   if (count < 4)
 619     (void) CopyMagickString(format,"SVG",MaxTextExtent);
 620   if (count < 3)
 621     *name='\0';
 622   sub_number=1;
 623   if (*name == '#')
 624     sub_number=(ssize_t) StringToLong(&name[1]);
 625   sub_number=MagickMax(sub_number,1L);
 626   resource=(char *) NULL;
 627   status=MagickFalse;
 628   length=GetStringInfoLength(profile);
 629   info=GetStringInfoDatum(profile);
 630   while ((length > 0) && IfMagickFalse(status))
 631   {
 632     if (ReadPropertyByte(&info,&length) != (unsigned char) '8')
 633       continue;
 634     if (ReadPropertyByte(&info,&length) != (unsigned char) 'B')
 635       continue;
 636     if (ReadPropertyByte(&info,&length) != (unsigned char) 'I')
 637       continue;
 638     if (ReadPropertyByte(&info,&length) != (unsigned char) 'M')
 639       continue;
 640     id=(ssize_t) ((int) ReadPropertyMSBShort(&info,&length));
 641     if (id < (ssize_t) start)
 642       continue;
 643     if (id > (ssize_t) stop)
 644       continue;
 645     if (resource != (char *) NULL)
 646       resource=DestroyString(resource);
 647     count=(ssize_t) ReadPropertyByte(&info,&length);
 648     if ((count != 0) && ((size_t) count <= length))
 649       {
 650         resource=(char *) NULL;
 651         if (~((size_t) count) >= (MaxTextExtent-1))
 652           resource=(char *) AcquireQuantumMemory((size_t) count+MaxTextExtent,
 653             sizeof(*resource));
 654         if (resource != (char *) NULL)
 655           {
 656             for (i=0; i < (ssize_t) count; i++)
 657               resource[i]=(char) ReadPropertyByte(&info,&length);
 658             resource[count]='\0';
 659           }
 660       }
 661     if ((count & 0x01) == 0)
 662       (void) ReadPropertyByte(&info,&length);
 663     count=(ssize_t) ((int) ReadPropertyMSBLong(&info,&length));
 664     if ((*name != '\0') && (*name != '#'))
 665       if ((resource == (char *) NULL) || (LocaleCompare(name,resource) != 0))
 666         {
 667           /*
 668             No name match, scroll forward and try next.
 669           */
 670           info+=count;
 671           length-=MagickMin(count,(ssize_t) length);
 672           continue;
 673         }
 674     if ((*name == '#') && (sub_number != 1))
 675       {
 676         /*
 677           No numbered match, scroll forward and try next.
 678         */
 679         sub_number--;
 680         info+=count;
 681         length-=MagickMin(count,(ssize_t) length);
 682         continue;
 683       }
 684     /*
 685       We have the resource of interest.
 686     */
 687     attribute=(char *) NULL;
 688     if (~((size_t) count) >= (MaxTextExtent-1))
 689       attribute=(char *) AcquireQuantumMemory((size_t) count+MaxTextExtent,
 690         sizeof(*attribute));
 691     if (attribute != (char *) NULL)
 692       {
 693         (void) CopyMagickMemory(attribute,(char *) info,(size_t) count);
 694         attribute[count]='\0';
 695         info+=count;
 696         length-=MagickMin(count,(ssize_t) length);
 697         if ((id <= 1999) || (id >= 2999))
 698           (void) SetImageProperty((Image *) image,key,(const char *)
 699             attribute,exception);
 700         else
 701           {
 702             char
 703               *path;
 704
 705             if (LocaleCompare(format,"svg") == 0)
 706               path=TraceSVGClippath((unsigned char *) attribute,(size_t) count,
 707                 image->columns,image->rows);
 708             else
 709               path=TracePSClippath((unsigned char *) attribute,(size_t) count,
 710                 image->columns,image->rows);
 711             (void) SetImageProperty((Image *) image,key,(const char *) path,
 712               exception);
 713             path=DestroyString(path);
 714           }
 715         attribute=DestroyString(attribute);
 716         status=MagickTrue;
 717       }
 718   }
 719   if (resource != (char *) NULL)
 720     resource=DestroyString(resource);
 721   return(status);
 722 }
 723
 724 static inline unsigned short ReadPropertyShort(const EndianType endian,
 725   const unsigned char *buffer)
 726 {
 727   unsigned short
 728     value;
 729
 730   if (endian == LSBEndian)
 731     {
 732       value=(unsigned short) ((buffer[1] << 8) | buffer[0]);
 733       return((unsigned short) (value & 0xffff));
 734     }
 735   value=(unsigned short) ((((unsigned char *) buffer)[0] << 8) |
 736     ((unsigned char *) buffer)[1]);
 737   return((unsigned short) (value & 0xffff));
 738 }
 739
 740 static inline size_t ReadPropertyLong(const EndianType endian,
 741   const unsigned char *buffer)
 742 {
 743   size_t
 744     value;
 745
 746   if (endian == LSBEndian)
 747     {
 748       value=(size_t) ((buffer[3] << 24) | (buffer[2] << 16) |
 749         (buffer[1] << 8 ) | (buffer[0]));
 750       return((size_t) (value & 0xffffffff));
 751     }
 752   value=(size_t) ((buffer[0] << 24) | (buffer[1] << 16) |
 753     (buffer[2] << 8) | buffer[3]);
 754   return((size_t) (value & 0xffffffff));
 755 }
 756
 757 static MagickBooleanType GetEXIFProperty(const Image *image,
 758   const char *property,ExceptionInfo *exception)
 759 {
 760 #define MaxDirectoryStack  16
 761 #define EXIF_DELIMITER  "\n"
 762 #define EXIF_NUM_FORMATS  12
 763 #define EXIF_FMT_BYTE  1
 764 #define EXIF_FMT_STRING  2
 765 #define EXIF_FMT_USHORT  3
 766 #define EXIF_FMT_ULONG  4
 767 #define EXIF_FMT_URATIONAL  5
 768 #define EXIF_FMT_SBYTE  6
 769 #define EXIF_FMT_UNDEFINED  7
 770 #define EXIF_FMT_SSHORT  8
 771 #define EXIF_FMT_SLONG  9
 772 #define EXIF_FMT_SRATIONAL  10
 773 #define EXIF_FMT_SINGLE  11
 774 #define EXIF_FMT_DOUBLE  12
 775 #define TAG_EXIF_OFFSET  0x8769
 776 #define TAG_GPS_OFFSET  0x8825
 777 #define TAG_INTEROP_OFFSET  0xa005
 778
 779 #define EXIFMultipleValues(size,format,arg) \
 780 { \
 781    ssize_t \
 782      component; \
 783  \
 784    size_t \
 785      length; \
 786  \
 787    unsigned char \
 788      *p1; \
 789  \
 790    length=0; \
 791    p1=p; \
 792    for (component=0; component < components; component++) \
 793    { \
 794      length+=FormatLocaleString(buffer+length,MaxTextExtent-length, \
 795        format", ",arg); \
 796      if (length >= (MaxTextExtent-1)) \
 797        length=MaxTextExtent-1; \
 798      p1+=size; \
 799    } \
 800    if (length > 1) \
 801      buffer[length-2]='\0'; \
 802    value=AcquireString(buffer); \
 803 }
 804
 805 #define EXIFMultipleFractions(size,format,arg1,arg2) \
 806 { \
 807    ssize_t \
 808      component; \
 809  \
 810    size_t \
 811      length; \
 812  \
 813    unsigned char \
 814      *p1; \
 815  \
 816    length=0; \
 817    p1=p; \
 818    for (component=0; component < components; component++) \
 819    { \
 820      length+=FormatLocaleString(buffer+length,MaxTextExtent-length, \
 821        format", ",(arg1),(arg2)); \
 822      if (length >= (MaxTextExtent-1)) \
 823        length=MaxTextExtent-1; \
 824      p1+=size; \
 825    } \
 826    if (length > 1) \
 827      buffer[length-2]='\0'; \
 828    value=AcquireString(buffer); \
 829 }
 830
 831   typedef struct _DirectoryInfo
 832   {
 833     const unsigned char
 834       *directory;
 835
 836     size_t
 837       entry;
 838
 839     ssize_t
 840       offset;
 841   } DirectoryInfo;
 842
 843   typedef struct _TagInfo
 844   {
 845     size_t
 846       tag;
 847
 848     const char
 849       *description;
 850   } TagInfo;
 851
 852   static TagInfo
 853     EXIFTag[] =
 854     {
 855       {  0x001, "exif:InteroperabilityIndex" },
 856       {  0x002, "exif:InteroperabilityVersion" },
 857       {  0x100, "exif:ImageWidth" },
 858       {  0x101, "exif:ImageLength" },
 859       {  0x102, "exif:BitsPerSample" },
 860       {  0x103, "exif:Compression" },
 861       {  0x106, "exif:PhotometricInterpretation" },
 862       {  0x10a, "exif:FillOrder" },
 863       {  0x10d, "exif:DocumentName" },
 864       {  0x10e, "exif:ImageDescription" },
 865       {  0x10f, "exif:Make" },
 866       {  0x110, "exif:Model" },
 867       {  0x111, "exif:StripOffsets" },
 868       {  0x112, "exif:Orientation" },
 869       {  0x115, "exif:SamplesPerPixel" },
 870       {  0x116, "exif:RowsPerStrip" },
 871       {  0x117, "exif:StripByteCounts" },
 872       {  0x11a, "exif:XResolution" },
 873       {  0x11b, "exif:YResolution" },
 874       {  0x11c, "exif:PlanarConfiguration" },
 875       {  0x11d, "exif:PageName" },
 876       {  0x11e, "exif:XPosition" },
 877       {  0x11f, "exif:YPosition" },
 878       {  0x118, "exif:MinSampleValue" },
 879       {  0x119, "exif:MaxSampleValue" },
 880       {  0x120, "exif:FreeOffsets" },
 881       {  0x121, "exif:FreeByteCounts" },
 882       {  0x122, "exif:GrayResponseUnit" },
 883       {  0x123, "exif:GrayResponseCurve" },
 884       {  0x124, "exif:T4Options" },
 885       {  0x125, "exif:T6Options" },
 886       {  0x128, "exif:ResolutionUnit" },
 887       {  0x12d, "exif:TransferFunction" },
 888       {  0x131, "exif:Software" },
 889       {  0x132, "exif:DateTime" },
 890       {  0x13b, "exif:Artist" },
 891       {  0x13e, "exif:WhitePoint" },
 892       {  0x13f, "exif:PrimaryChromaticities" },
 893       {  0x140, "exif:ColorMap" },
 894       {  0x141, "exif:HalfToneHints" },
 895       {  0x142, "exif:TileWidth" },
 896       {  0x143, "exif:TileLength" },
 897       {  0x144, "exif:TileOffsets" },
 898       {  0x145, "exif:TileByteCounts" },
 899       {  0x14a, "exif:SubIFD" },
 900       {  0x14c, "exif:InkSet" },
 901       {  0x14d, "exif:InkNames" },
 902       {  0x14e, "exif:NumberOfInks" },
 903       {  0x150, "exif:DotRange" },
 904       {  0x151, "exif:TargetPrinter" },
 905       {  0x152, "exif:ExtraSample" },
 906       {  0x153, "exif:SampleFormat" },
 907       {  0x154, "exif:SMinSampleValue" },
 908       {  0x155, "exif:SMaxSampleValue" },
 909       {  0x156, "exif:TransferRange" },
 910       {  0x157, "exif:ClipPath" },
 911       {  0x158, "exif:XClipPathUnits" },
 912       {  0x159, "exif:YClipPathUnits" },
 913       {  0x15a, "exif:Indexed" },
 914       {  0x15b, "exif:JPEGTables" },
 915       {  0x15f, "exif:OPIProxy" },
 916       {  0x200, "exif:JPEGProc" },
 917       {  0x201, "exif:JPEGInterchangeFormat" },
 918       {  0x202, "exif:JPEGInterchangeFormatLength" },
 919       {  0x203, "exif:JPEGRestartInterval" },
 920       {  0x205, "exif:JPEGLosslessPredictors" },
 921       {  0x206, "exif:JPEGPointTransforms" },
 922       {  0x207, "exif:JPEGQTables" },
 923       {  0x208, "exif:JPEGDCTables" },
 924       {  0x209, "exif:JPEGACTables" },
 925       {  0x211, "exif:YCbCrCoefficients" },
 926       {  0x212, "exif:YCbCrSubSampling" },
 927       {  0x213, "exif:YCbCrPositioning" },
 928       {  0x214, "exif:ReferenceBlackWhite" },
 929       {  0x2bc, "exif:ExtensibleMetadataPlatform" },
 930       {  0x301, "exif:Gamma" },
 931       {  0x302, "exif:ICCProfileDescriptor" },
 932       {  0x303, "exif:SRGBRenderingIntent" },
 933       {  0x320, "exif:ImageTitle" },
 934       {  0x5001, "exif:ResolutionXUnit" },
 935       {  0x5002, "exif:ResolutionYUnit" },
 936       {  0x5003, "exif:ResolutionXLengthUnit" },
 937       {  0x5004, "exif:ResolutionYLengthUnit" },
 938       {  0x5005, "exif:PrintFlags" },
 939       {  0x5006, "exif:PrintFlagsVersion" },
 940       {  0x5007, "exif:PrintFlagsCrop" },
 941       {  0x5008, "exif:PrintFlagsBleedWidth" },
 942       {  0x5009, "exif:PrintFlagsBleedWidthScale" },
 943       {  0x500A, "exif:HalftoneLPI" },
 944       {  0x500B, "exif:HalftoneLPIUnit" },
 945       {  0x500C, "exif:HalftoneDegree" },
 946       {  0x500D, "exif:HalftoneShape" },
 947       {  0x500E, "exif:HalftoneMisc" },
 948       {  0x500F, "exif:HalftoneScreen" },
 949       {  0x5010, "exif:JPEGQuality" },
 950       {  0x5011, "exif:GridSize" },
 951       {  0x5012, "exif:ThumbnailFormat" },
 952       {  0x5013, "exif:ThumbnailWidth" },
 953       {  0x5014, "exif:ThumbnailHeight" },
 954       {  0x5015, "exif:ThumbnailColorDepth" },
 955       {  0x5016, "exif:ThumbnailPlanes" },
 956       {  0x5017, "exif:ThumbnailRawBytes" },
 957       {  0x5018, "exif:ThumbnailSize" },
 958       {  0x5019, "exif:ThumbnailCompressedSize" },
 959       {  0x501a, "exif:ColorTransferFunction" },
 960       {  0x501b, "exif:ThumbnailData" },
 961       {  0x5020, "exif:ThumbnailImageWidth" },
 962       {  0x5021, "exif:ThumbnailImageHeight" },
 963       {  0x5022, "exif:ThumbnailBitsPerSample" },
 964       {  0x5023, "exif:ThumbnailCompression" },
 965       {  0x5024, "exif:ThumbnailPhotometricInterp" },
 966       {  0x5025, "exif:ThumbnailImageDescription" },
 967       {  0x5026, "exif:ThumbnailEquipMake" },
 968       {  0x5027, "exif:ThumbnailEquipModel" },
 969       {  0x5028, "exif:ThumbnailStripOffsets" },
 970       {  0x5029, "exif:ThumbnailOrientation" },
 971       {  0x502a, "exif:ThumbnailSamplesPerPixel" },
 972       {  0x502b, "exif:ThumbnailRowsPerStrip" },
 973       {  0x502c, "exif:ThumbnailStripBytesCount" },
 974       {  0x502d, "exif:ThumbnailResolutionX" },
 975       {  0x502e, "exif:ThumbnailResolutionY" },
 976       {  0x502f, "exif:ThumbnailPlanarConfig" },
 977       {  0x5030, "exif:ThumbnailResolutionUnit" },
 978       {  0x5031, "exif:ThumbnailTransferFunction" },
 979       {  0x5032, "exif:ThumbnailSoftwareUsed" },
 980       {  0x5033, "exif:ThumbnailDateTime" },
 981       {  0x5034, "exif:ThumbnailArtist" },
 982       {  0x5035, "exif:ThumbnailWhitePoint" },
 983       {  0x5036, "exif:ThumbnailPrimaryChromaticities" },
 984       {  0x5037, "exif:ThumbnailYCbCrCoefficients" },
 985       {  0x5038, "exif:ThumbnailYCbCrSubsampling" },
 986       {  0x5039, "exif:ThumbnailYCbCrPositioning" },
 987       {  0x503A, "exif:ThumbnailRefBlackWhite" },
 988       {  0x503B, "exif:ThumbnailCopyRight" },
 989       {  0x5090, "exif:LuminanceTable" },
 990       {  0x5091, "exif:ChrominanceTable" },
 991       {  0x5100, "exif:FrameDelay" },
 992       {  0x5101, "exif:LoopCount" },
 993       {  0x5110, "exif:PixelUnit" },
 994       {  0x5111, "exif:PixelPerUnitX" },
 995       {  0x5112, "exif:PixelPerUnitY" },
 996       {  0x5113, "exif:PaletteHistogram" },
 997       {  0x1000, "exif:RelatedImageFileFormat" },
 998       {  0x1001, "exif:RelatedImageLength" },
 999       {  0x1002, "exif:RelatedImageWidth" },
1000       {  0x800d, "exif:ImageID" },
1001       {  0x80e3, "exif:Matteing" },
1002       {  0x80e4, "exif:DataType" },
1003       {  0x80e5, "exif:ImageDepth" },
1004       {  0x80e6, "exif:TileDepth" },
1005       {  0x828d, "exif:CFARepeatPatternDim" },
1006       {  0x828e, "exif:CFAPattern2" },
1007       {  0x828f, "exif:BatteryLevel" },
1008       {  0x8298, "exif:Copyright" },
1009       {  0x829a, "exif:ExposureTime" },
1010       {  0x829d, "exif:FNumber" },
1011       {  0x83bb, "exif:IPTC/NAA" },
1012       {  0x84e3, "exif:IT8RasterPadding" },
1013       {  0x84e5, "exif:IT8ColorTable" },
1014       {  0x8649, "exif:ImageResourceInformation" },
1015       {  0x8769, "exif:ExifOffset" },
1016       {  0x8773, "exif:InterColorProfile" },
1017       {  0x8822, "exif:ExposureProgram" },
1018       {  0x8824, "exif:SpectralSensitivity" },
1019       {  0x8825, "exif:GPSInfo" },
1020       {  0x8827, "exif:ISOSpeedRatings" },
1021       {  0x8828, "exif:OECF" },
1022       {  0x8829, "exif:Interlace" },
1023       {  0x882a, "exif:TimeZoneOffset" },
1024       {  0x882b, "exif:SelfTimerMode" },
1025       {  0x9000, "exif:ExifVersion" },
1026       {  0x9003, "exif:DateTimeOriginal" },
1027       {  0x9004, "exif:DateTimeDigitized" },
1028       {  0x9101, "exif:ComponentsConfiguration" },
1029       {  0x9102, "exif:CompressedBitsPerPixel" },
1030       {  0x9201, "exif:ShutterSpeedValue" },
1031       {  0x9202, "exif:ApertureValue" },
1032       {  0x9203, "exif:BrightnessValue" },
1033       {  0x9204, "exif:ExposureBiasValue" },
1034       {  0x9205, "exif:MaxApertureValue" },
1035       {  0x9206, "exif:SubjectDistance" },
1036       {  0x9207, "exif:MeteringMode" },
1037       {  0x9208, "exif:LightSource" },
1038       {  0x9209, "exif:Flash" },
1039       {  0x920a, "exif:FocalLength" },
1040       {  0x920b, "exif:FlashEnergy" },
1041       {  0x920c, "exif:SpatialFrequencyResponse" },
1042       {  0x920d, "exif:Noise" },
1043       {  0x9211, "exif:ImageNumber" },
1044       {  0x9212, "exif:SecurityClassification" },
1045       {  0x9213, "exif:ImageHistory" },
1046       {  0x9214, "exif:SubjectArea" },
1047       {  0x9215, "exif:ExposureIndex" },
1048       {  0x9216, "exif:TIFF-EPStandardID" },
1049       {  0x927c, "exif:MakerNote" },
1050       {  0x9C9b, "exif:WinXP-Title" },
1051       {  0x9C9c, "exif:WinXP-Comments" },
1052       {  0x9C9d, "exif:WinXP-Author" },
1053       {  0x9C9e, "exif:WinXP-Keywords" },
1054       {  0x9C9f, "exif:WinXP-Subject" },
1055       {  0x9286, "exif:UserComment" },
1056       {  0x9290, "exif:SubSecTime" },
1057       {  0x9291, "exif:SubSecTimeOriginal" },
1058       {  0x9292, "exif:SubSecTimeDigitized" },
1059       {  0xa000, "exif:FlashPixVersion" },
1060       {  0xa001, "exif:ColorSpace" },
1061       {  0xa002, "exif:ExifImageWidth" },
1062       {  0xa003, "exif:ExifImageLength" },
1063       {  0xa004, "exif:RelatedSoundFile" },
1064       {  0xa005, "exif:InteroperabilityOffset" },
1065       {  0xa20b, "exif:FlashEnergy" },
1066       {  0xa20c, "exif:SpatialFrequencyResponse" },
1067       {  0xa20d, "exif:Noise" },
1068       {  0xa20e, "exif:FocalPlaneXResolution" },
1069       {  0xa20f, "exif:FocalPlaneYResolution" },
1070       {  0xa210, "exif:FocalPlaneResolutionUnit" },
1071       {  0xa214, "exif:SubjectLocation" },
1072       {  0xa215, "exif:ExposureIndex" },
1073       {  0xa216, "exif:TIFF/EPStandardID" },
1074       {  0xa217, "exif:SensingMethod" },
1075       {  0xa300, "exif:FileSource" },
1076       {  0xa301, "exif:SceneType" },
1077       {  0xa302, "exif:CFAPattern" },
1078       {  0xa401, "exif:CustomRendered" },
1079       {  0xa402, "exif:ExposureMode" },
1080       {  0xa403, "exif:WhiteBalance" },
1081       {  0xa404, "exif:DigitalZoomRatio" },
1082       {  0xa405, "exif:FocalLengthIn35mmFilm" },
1083       {  0xa406, "exif:SceneCaptureType" },
1084       {  0xa407, "exif:GainControl" },
1085       {  0xa408, "exif:Contrast" },
1086       {  0xa409, "exif:Saturation" },
1087       {  0xa40a, "exif:Sharpness" },
1088       {  0xa40b, "exif:DeviceSettingDescription" },
1089       {  0xa40c, "exif:SubjectDistanceRange" },
1090       {  0xa420, "exif:ImageUniqueID" },
1091       {  0xc4a5, "exif:PrintImageMatching" },
1092       {  0xa500, "exif:Gamma" },
1093       {  0xc640, "exif:CR2Slice" },
1094       { 0x10000, "exif:GPSVersionID" },
1095       { 0x10001, "exif:GPSLatitudeRef" },
1096       { 0x10002, "exif:GPSLatitude" },
1097       { 0x10003, "exif:GPSLongitudeRef" },
1098       { 0x10004, "exif:GPSLongitude" },
1099       { 0x10005, "exif:GPSAltitudeRef" },
1100       { 0x10006, "exif:GPSAltitude" },
1101       { 0x10007, "exif:GPSTimeStamp" },
1102       { 0x10008, "exif:GPSSatellites" },
1103       { 0x10009, "exif:GPSStatus" },
1104       { 0x1000a, "exif:GPSMeasureMode" },
1105       { 0x1000b, "exif:GPSDop" },
1106       { 0x1000c, "exif:GPSSpeedRef" },
1107       { 0x1000d, "exif:GPSSpeed" },
1108       { 0x1000e, "exif:GPSTrackRef" },
1109       { 0x1000f, "exif:GPSTrack" },
1110       { 0x10010, "exif:GPSImgDirectionRef" },
1111       { 0x10011, "exif:GPSImgDirection" },
1112       { 0x10012, "exif:GPSMapDatum" },
1113       { 0x10013, "exif:GPSDestLatitudeRef" },
1114       { 0x10014, "exif:GPSDestLatitude" },
1115       { 0x10015, "exif:GPSDestLongitudeRef" },
1116       { 0x10016, "exif:GPSDestLongitude" },
1117       { 0x10017, "exif:GPSDestBearingRef" },
1118       { 0x10018, "exif:GPSDestBearing" },
1119       { 0x10019, "exif:GPSDestDistanceRef" },
1120       { 0x1001a, "exif:GPSDestDistance" },
1121       { 0x1001b, "exif:GPSProcessingMethod" },
1122       { 0x1001c, "exif:GPSAreaInformation" },
1123       { 0x1001d, "exif:GPSDateStamp" },
1124       { 0x1001e, "exif:GPSDifferential" },
1125       { 0x00000, (const char *) NULL }
1126     };
1127
1128   const StringInfo
1129     *profile;
1130
1131   const unsigned char
1132     *directory,
1133     *exif;
1134
1135   DirectoryInfo
1136     directory_stack[MaxDirectoryStack];
1137
1138   EndianType
1139     endian;
1140
1141   MagickBooleanType
1142     status;
1143
1144   register ssize_t
1145     i;
1146
1147   size_t
1148     entry,
1149     length,
1150     number_entries,
1151     tag;
1152
1153   SplayTreeInfo
1154     *exif_resources;
1155
1156   ssize_t
1157     all,
1158     id,
1159     level,
1160     offset,
1161     tag_offset,
1162     tag_value;
1163
1164   static int
1165     tag_bytes[] = {0, 1, 1, 2, 4, 8, 1, 1, 2, 4, 8, 4, 8};
1166
1167   /*
1168     If EXIF data exists, then try to parse the request for a tag.
1169   */
1170   profile=GetImageProfile(image,"exif");
1171   if (profile == (StringInfo *) NULL)
1172     return(MagickFalse);
1173   if ((property == (const char *) NULL) || (*property == '\0'))
1174     return(MagickFalse);
1175   while (isspace((int) ((unsigned char) *property)) != 0)
1176     property++;
1177   all=0;
1178   tag=(~0UL);
1179   switch (*(property+5))
1180   {
1181     case '*':
1182     {
1183       /*
1184         Caller has asked for all the tags in the EXIF data.
1185       */
1186       tag=0;
1187       all=1; /* return the data in description=value format */
1188       break;
1189     }
1190     case '!':
1191     {
1192       tag=0;
1193       all=2; /* return the data in tagid=value format */
1194       break;
1195     }
1196     case '#':
1197     case '@':
1198     {
1199       int
1200         c;
1201
1202       size_t
1203         n;
1204
1205       /*
1206         Check for a hex based tag specification first.
1207       */
1208       tag=(*(property+5) == '@') ? 1UL : 0UL;
1209       property+=6;
1210       n=strlen(property);
1211       if (n != 4)
1212         return(MagickFalse);
1213       /*
1214         Parse tag specification as a hex number.
1215       */
1216       n/=4;
1217       do
1218       {
1219         for (i=(ssize_t) n-1L; i >= 0; i--)
1220         {
1221           c=(*property++);
1222           tag<<=4;
1223           if ((c >= '0') && (c <= '9'))
1224             tag|=(c-'0');
1225           else
1226             if ((c >= 'A') && (c <= 'F'))
1227               tag|=(c-('A'-10));
1228             else
1229               if ((c >= 'a') && (c <= 'f'))
1230                 tag|=(c-('a'-10));
1231               else
1232                 return(MagickFalse);
1233         }
1234       } while (*property != '\0');
1235       break;
1236     }
1237     default:
1238     {
1239       /*
1240         Try to match the text with a tag name instead.
1241       */
1242       for (i=0; ; i++)
1243       {
1244         if (EXIFTag[i].tag == 0)
1245           break;
1246         if (LocaleCompare(EXIFTag[i].description,property) == 0)
1247           {
1248             tag=(size_t) EXIFTag[i].tag;
1249             break;
1250           }
1251       }
1252       break;
1253     }
1254   }
1255   if (tag == (~0UL))
1256     return(MagickFalse);
1257   length=GetStringInfoLength(profile);
1258   exif=GetStringInfoDatum(profile);
1259   while (length != 0)
1260   {
1261     if (ReadPropertyByte(&exif,&length) != 0x45)
1262       continue;
1263     if (ReadPropertyByte(&exif,&length) != 0x78)
1264       continue;
1265     if (ReadPropertyByte(&exif,&length) != 0x69)
1266       continue;
1267     if (ReadPropertyByte(&exif,&length) != 0x66)
1268       continue;
1269     if (ReadPropertyByte(&exif,&length) != 0x00)
1270       continue;
1271     if (ReadPropertyByte(&exif,&length) != 0x00)
1272       continue;
1273     break;
1274   }
1275   if (length < 16)
1276     return(MagickFalse);
1277   id=(ssize_t) ((int) ReadPropertyShort(LSBEndian,exif));
1278   endian=LSBEndian;
1279   if (id == 0x4949)
1280     endian=LSBEndian;
1281   else
1282     if (id == 0x4D4D)
1283       endian=MSBEndian;
1284     else
1285       return(MagickFalse);
1286   if (ReadPropertyShort(endian,exif+2) != 0x002a)
1287     return(MagickFalse);
1288   /*
1289     This the offset to the first IFD.
1290   */
1291   offset=(ssize_t) ((int) ReadPropertyLong(endian,exif+4));
1292   if ((offset < 0) || (size_t) offset >= length)
1293     return(MagickFalse);
1294   /*
1295     Set the pointer to the first IFD and follow it were it leads.
1296   */
1297   status=MagickFalse;
1298   directory=exif+offset;
1299   level=0;
1300   entry=0;
1301   tag_offset=0;
1302   exif_resources=NewSplayTree((int (*)(const void *,const void *)) NULL,
1303     (void *(*)(void *)) NULL,(void *(*)(void *)) NULL);
1304   do
1305   {
1306     /*
1307       If there is anything on the stack then pop it off.
1308     */
1309     if (level > 0)
1310       {
1311         level--;
1312         directory=directory_stack[level].directory;
1313         entry=directory_stack[level].entry;
1314         tag_offset=directory_stack[level].offset;
1315       }
1316     /*
1317       Determine how many entries there are in the current IFD.
1318     */
1319     number_entries=(size_t) ((int) ReadPropertyShort(endian,directory));
1320     for ( ; entry < number_entries; entry++)
1321     {
1322       register unsigned char
1323         *p,
1324         *q;
1325
1326       size_t
1327         format;
1328
1329       ssize_t
1330         number_bytes,
1331         components;
1332
1333       q=(unsigned char *) (directory+(12*entry)+2);
1334       if (GetValueFromSplayTree(exif_resources,q) == q)
1335         break;
1336       (void) AddValueToSplayTree(exif_resources,q,q);
1337       tag_value=(ssize_t) ((int) ReadPropertyShort(endian,q)+tag_offset);
1338       format=(size_t) ((int) ReadPropertyShort(endian,q+2));
1339       if (format >= (sizeof(tag_bytes)/sizeof(*tag_bytes)))
1340         break;
1341       components=(ssize_t) ((int) ReadPropertyLong(endian,q+4));
1342       number_bytes=(size_t) components*tag_bytes[format];
1343       if (number_bytes < components)
1344         break;  /* prevent overflow */
1345       if (number_bytes <= 4)
1346         p=q+8;
1347       else
1348         {
1349           ssize_t
1350             offset;
1351
1352           /*
1353             The directory entry contains an offset.
1354           */
1355           offset=(ssize_t) ((int) ReadPropertyLong(endian,q+8));
1356           if ((ssize_t) (offset+number_bytes) < offset)
1357             continue;  /* prevent overflow */
1358           if ((size_t) (offset+number_bytes) > length)
1359             continue;
1360           p=(unsigned char *) (exif+offset);
1361         }
1362       if ((all != 0) || (tag == (size_t) tag_value))
1363         {
1364           char
1365             buffer[MaxTextExtent],
1366             *value;
1367
1368           value=(char *) NULL;
1369           *buffer='\0';
1370           switch (format)
1371           {
1372             case EXIF_FMT_BYTE:
1373             case EXIF_FMT_UNDEFINED:
1374             {
1375               EXIFMultipleValues(1,"%.20g",(double) (*(unsigned char *) p1));
1376               break;
1377             }
1378             case EXIF_FMT_SBYTE:
1379             {
1380               EXIFMultipleValues(1,"%.20g",(double) (*(signed char *) p1));
1381               break;
1382             }
1383             case EXIF_FMT_SSHORT:
1384             {
1385               EXIFMultipleValues(2,"%hd",ReadPropertyShort(endian,p1));
1386               break;
1387             }
1388             case EXIF_FMT_USHORT:
1389             {
1390               EXIFMultipleValues(2,"%hu",ReadPropertyShort(endian,p1));
1391               break;
1392             }
1393             case EXIF_FMT_ULONG:
1394             {
1395               EXIFMultipleValues(4,"%.20g",(double)
1396                 ((int) ReadPropertyLong(endian,p1)));
1397               break;
1398             }
1399             case EXIF_FMT_SLONG:
1400             {
1401               EXIFMultipleValues(4,"%.20g",(double)
1402                 ((int) ReadPropertyLong(endian,p1)));
1403               break;
1404             }
1405             case EXIF_FMT_URATIONAL:
1406             {
1407               EXIFMultipleFractions(8,"%.20g/%.20g",(double)
1408                 ((int) ReadPropertyLong(endian,p1)),(double)
1409                 ((int) ReadPropertyLong(endian,p1+4)));
1410               break;
1411             }
1412             case EXIF_FMT_SRATIONAL:
1413             {
1414               EXIFMultipleFractions(8,"%.20g/%.20g",(double)
1415                 ((int) ReadPropertyLong(endian,p1)),(double)
1416                 ((int) ReadPropertyLong(endian,p1+4)));
1417               break;
1418             }
1419             case EXIF_FMT_SINGLE:
1420             {
1421               EXIFMultipleValues(4,"%f",(double) *(float *) p1);
1422               break;
1423             }
1424             case EXIF_FMT_DOUBLE:
1425             {
1426               EXIFMultipleValues(8,"%f",*(double *) p1);
1427               break;
1428             }
1429             default:
1430             case EXIF_FMT_STRING:
1431             {
1432               value=(char *) NULL;
1433               if (~((size_t) number_bytes) >= 1)
1434                 value=(char *) AcquireQuantumMemory((size_t) number_bytes+1UL,
1435                   sizeof(*value));
1436               if (value != (char *) NULL)
1437                 {
1438                   register ssize_t
1439                     i;
1440
1441                   for (i=0; i < (ssize_t) number_bytes; i++)
1442                   {
1443                     value[i]='.';
1444                     if ((isprint((int) p[i]) != 0) || (p[i] == '\0'))
1445                       value[i]=(char) p[i];
1446                   }
1447                   value[i]='\0';
1448                 }
1449               break;
1450             }
1451           }
1452           if (value != (char *) NULL)
1453             {
1454               char
1455                 *key;
1456
1457               register const char
1458                 *p;
1459
1460               key=AcquireString(property);
1461               if (level == 2)
1462                 (void) SubstituteString(&key,"exif:","exif:thumbnail:");
1463               switch (all)
1464               {
1465                 case 1:
1466                 {
1467                   const char
1468                     *description;
1469
1470                   register ssize_t
1471                     i;
1472
1473                   description="unknown";
1474                   for (i=0; ; i++)
1475                   {
1476                     if (EXIFTag[i].tag == 0)
1477                       break;
1478                     if ((ssize_t) EXIFTag[i].tag == tag_value)
1479                       {
1480                         description=EXIFTag[i].description;
1481                         break;
1482                       }
1483                   }
1484                   (void) FormatLocaleString(key,MaxTextExtent,"%s",description);
1485                   break;
1486                 }
1487                 case 2:
1488                 {
1489                   if (tag_value < 0x10000)
1490                     (void) FormatLocaleString(key,MaxTextExtent,"#%04lx",
1491                       (unsigned long) tag_value);
1492                   else
1493                     if (tag_value < 0x20000)
1494                       (void) FormatLocaleString(key,MaxTextExtent,"@%04lx",
1495                         (unsigned long) (tag_value & 0xffff));
1496                     else
1497                       (void) FormatLocaleString(key,MaxTextExtent,"unknown");
1498                   break;
1499                 }
1500               }
1501               p=(const char *) NULL;
1502               if (image->properties != (void *) NULL)
1503                 p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)
1504                   image->properties,key);
1505               if (p == (const char *) NULL)
1506                 (void) SetImageProperty((Image *) image,key,value,exception);
1507               value=DestroyString(value);
1508               key=DestroyString(key);
1509               status=MagickTrue;
1510             }
1511         }
1512         if ((tag_value == TAG_EXIF_OFFSET) ||
1513             (tag_value == TAG_INTEROP_OFFSET) || (tag_value == TAG_GPS_OFFSET))
1514           {
1515             ssize_t
1516               offset;
1517
1518             offset=(ssize_t) ((int) ReadPropertyLong(endian,p));
1519             if (((size_t) offset < length) && (level < (MaxDirectoryStack-2)))
1520               {
1521                 ssize_t
1522                   tag_offset1;
1523
1524                 tag_offset1=(ssize_t) ((tag_value == TAG_GPS_OFFSET) ? 0x10000 :
1525                   0);
1526                 directory_stack[level].directory=directory;
1527                 entry++;
1528                 directory_stack[level].entry=entry;
1529                 directory_stack[level].offset=tag_offset;
1530                 level++;
1531                 directory_stack[level].directory=exif+offset;
1532                 directory_stack[level].offset=tag_offset1;
1533                 directory_stack[level].entry=0;
1534                 level++;
1535                 if ((directory+2+(12*number_entries)) > (exif+length))
1536                   break;
1537                 offset=(ssize_t) ((int) ReadPropertyLong(endian,directory+2+(12*
1538                   number_entries)));
1539                 if ((offset != 0) && ((size_t) offset < length) &&
1540                     (level < (MaxDirectoryStack-2)))
1541                   {
1542                     directory_stack[level].directory=exif+offset;
1543                     directory_stack[level].entry=0;
1544                     directory_stack[level].offset=tag_offset1;
1545                     level++;
1546                   }
1547               }
1548             break;
1549           }
1550     }
1551   } while (level > 0);
1552   exif_resources=DestroySplayTree(exif_resources);
1553   return(status);
1554 }
1555
1556 static MagickBooleanType GetICCProperty(const Image *image,const char *property,
1557   ExceptionInfo *exception)
1558 {
1559   const StringInfo
1560     *profile;
1561
1562   magick_unreferenced(property);
1563
1564   profile=GetImageProfile(image,"icc");
1565   if (profile == (StringInfo *) NULL)
1566     profile=GetImageProfile(image,"icm");
1567   if (profile == (StringInfo *) NULL)
1568     return(MagickFalse);
1569   if (GetStringInfoLength(profile) < 128)
1570     return(MagickFalse);  /* minimum ICC profile length */
1571 #if defined(MAGICKCORE_LCMS_DELEGATE)
1572   {
1573     cmsHPROFILE
1574       icc_profile;
1575
1576     icc_profile=cmsOpenProfileFromMem(GetStringInfoDatum(profile),
1577       (cmsUInt32Number) GetStringInfoLength(profile));
1578     if (icc_profile != (cmsHPROFILE *) NULL)
1579       {
1580 #if defined(LCMS_VERSION) && (LCMS_VERSION < 2000)
1581         const char
1582           *name;
1583
1584         name=cmsTakeProductName(icc_profile);
1585         if (name != (const char *) NULL)
1586           (void) SetImageProperty((Image *) image,"icc:name",name,exception);
1587 #else
1588         char
1589           info[MaxTextExtent];
1590
1591         (void) cmsGetProfileInfoASCII(icc_profile,cmsInfoDescription,
1592           "en","US",info,MaxTextExtent);
1593         (void) SetImageProperty((Image *) image,"icc:description",info,
1594           exception);
1595         (void) cmsGetProfileInfoASCII(icc_profile,cmsInfoManufacturer,
1596           "en","US",info,MaxTextExtent);
1597         (void) SetImageProperty((Image *) image,"icc:manufacturer",info,
1598           exception);
1599         (void) cmsGetProfileInfoASCII(icc_profile,cmsInfoModel,"en",
1600           "US",info,MaxTextExtent);
1601         (void) SetImageProperty((Image *) image,"icc:model",info,exception);
1602         (void) cmsGetProfileInfoASCII(icc_profile,cmsInfoCopyright,
1603           "en","US",info,MaxTextExtent);
1604         (void) SetImageProperty((Image *) image,"icc:copyright",info,exception);
1605 #endif
1606         (void) cmsCloseProfile(icc_profile);
1607       }
1608   }
1609 #endif
1610   return(MagickTrue);
1611 }
1612
1613 static MagickBooleanType GetXMPProperty(const Image *image,const char *property)
1614 {
1615   char
1616     *xmp_profile;
1617
1618   const StringInfo
1619     *profile;
1620
1621   ExceptionInfo
1622     *exception;
1623
1624   MagickBooleanType
1625     status;
1626
1627   register const char
1628     *p;
1629
1630   XMLTreeInfo
1631     *child,
1632     *description,
1633     *node,
1634     *rdf,
1635     *xmp;
1636
1637   profile=GetImageProfile(image,"xmp");
1638   if (profile == (StringInfo *) NULL)
1639     return(MagickFalse);
1640   if ((property == (const char *) NULL) || (*property == '\0'))
1641     return(MagickFalse);
1642   xmp_profile=StringInfoToString(profile);
1643   if (xmp_profile == (char *) NULL)
1644     return(MagickFalse);
1645   for (p=xmp_profile; *p != '\0'; p++)
1646     if ((*p == '<') && (*(p+1) == 'x'))
1647       break;
1648   exception=AcquireExceptionInfo();
1649   xmp=NewXMLTree((char *) p,exception);
1650   xmp_profile=DestroyString(xmp_profile);
1651   exception=DestroyExceptionInfo(exception);
1652   if (xmp == (XMLTreeInfo *) NULL)
1653     return(MagickFalse);
1654   status=MagickFalse;
1655   rdf=GetXMLTreeChild(xmp,"rdf:RDF");
1656   if (rdf != (XMLTreeInfo *) NULL)
1657     {
1658       if (image->properties == (void *) NULL)
1659         ((Image *) image)->properties=NewSplayTree(CompareSplayTreeString,
1660           RelinquishMagickMemory,RelinquishMagickMemory);
1661       description=GetXMLTreeChild(rdf,"rdf:Description");
1662       while (description != (XMLTreeInfo *) NULL)
1663       {
1664         node=GetXMLTreeChild(description,(const char *) NULL);
1665         while (node != (XMLTreeInfo *) NULL)
1666         {
1667           child=GetXMLTreeChild(node,(const char *) NULL);
1668           if (child == (XMLTreeInfo *) NULL)
1669             (void) AddValueToSplayTree((SplayTreeInfo *) image->properties,
1670               ConstantString(GetXMLTreeTag(node)),
1671               ConstantString(GetXMLTreeContent(node)));
1672           while (child != (XMLTreeInfo *) NULL)
1673           {
1674             if (LocaleCompare(GetXMLTreeTag(child),"rdf:Seq") != 0)
1675               (void) AddValueToSplayTree((SplayTreeInfo *) image->properties,
1676                 ConstantString(GetXMLTreeTag(child)),
1677                 ConstantString(GetXMLTreeContent(child)));
1678             child=GetXMLTreeSibling(child);
1679           }
1680           node=GetXMLTreeSibling(node);
1681         }
1682         description=GetNextXMLTreeTag(description);
1683       }
1684     }
1685   xmp=DestroyXMLTree(xmp);
1686   return(status);
1687 }
1688
1689 static char *TracePSClippath(const unsigned char *blob,size_t length,
1690   const size_t magick_unused(columns),const size_t magick_unused(rows))
1691 {
1692   char
1693     *path,
1694     *message;
1695
1696   MagickBooleanType
1697     in_subpath;
1698
1699   PointInfo
1700     first[3],
1701     last[3],
1702     point[3];
1703
1704   register ssize_t
1705     i,
1706     x;
1707
1708   ssize_t
1709     knot_count,
1710     selector,
1711     y;
1712
1713   path=AcquireString((char *) NULL);
1714   if (path == (char *) NULL)
1715     return((char *) NULL);
1716   message=AcquireString((char *) NULL);
1717   (void) FormatLocaleString(message,MaxTextExtent,"/ClipImage\n");
1718   (void) ConcatenateString(&path,message);
1719   (void) FormatLocaleString(message,MaxTextExtent,"{\n");
1720   (void) ConcatenateString(&path,message);
1721   (void) FormatLocaleString(message,MaxTextExtent,"  /c {curveto} bind def\n");
1722   (void) ConcatenateString(&path,message);
1723   (void) FormatLocaleString(message,MaxTextExtent,"  /l {lineto} bind def\n");
1724   (void) ConcatenateString(&path,message);
1725   (void) FormatLocaleString(message,MaxTextExtent,"  /m {moveto} bind def\n");
1726   (void) ConcatenateString(&path,message);
1727   (void) FormatLocaleString(message,MaxTextExtent,
1728     "  /v {currentpoint 6 2 roll curveto} bind def\n");
1729   (void) ConcatenateString(&path,message);
1730   (void) FormatLocaleString(message,MaxTextExtent,
1731     "  /y {2 copy curveto} bind def\n");
1732   (void) ConcatenateString(&path,message);
1733   (void) FormatLocaleString(message,MaxTextExtent,
1734     "  /z {closepath} bind def\n");
1735   (void) ConcatenateString(&path,message);
1736   (void) FormatLocaleString(message,MaxTextExtent,"  newpath\n");
1737   (void) ConcatenateString(&path,message);
1738   /*
1739     The clipping path format is defined in "Adobe Photoshop File
1740     Formats Specification" version 6.0 downloadable from adobe.com.
1741   */
1742   (void) ResetMagickMemory(point,0,sizeof(point));
1743   (void) ResetMagickMemory(first,0,sizeof(first));
1744   (void) ResetMagickMemory(last,0,sizeof(last));
1745   knot_count=0;
1746   in_subpath=MagickFalse;
1747   while (length > 0)
1748   {
1749     selector=(ssize_t) ((int) ReadPropertyMSBShort(&blob,&length));
1750     switch (selector)
1751     {
1752       case 0:
1753       case 3:
1754       {
1755         if (knot_count != 0)
1756           {
1757             blob+=24;
1758             length-=MagickMin(24,(ssize_t) length);
1759             break;
1760           }
1761         /*
1762           Expected subpath length record.
1763         */
1764         knot_count=(ssize_t) ((int) ReadPropertyMSBShort(&blob,&length));
1765         blob+=22;
1766         length-=MagickMin(22,(ssize_t) length);
1767         break;
1768       }
1769       case 1:
1770       case 2:
1771       case 4:
1772       case 5:
1773       {
1774         if (knot_count == 0)
1775           {
1776             /*
1777               Unexpected subpath knot
1778             */
1779             blob+=24;
1780             length-=MagickMin(24,(ssize_t) length);
1781             break;
1782           }
1783         /*
1784           Add sub-path knot
1785         */
1786         for (i=0; i < 3; i++)
1787         {
1788           size_t
1789             xx,
1790             yy;
1791
1792           yy=(size_t) ((int) ReadPropertyMSBLong(&blob,&length));
1793           xx=(size_t) ((int) ReadPropertyMSBLong(&blob,&length));
1794           x=(ssize_t) xx;
1795           if (xx > 2147483647)
1796             x=(ssize_t) xx-4294967295U-1;
1797           y=(ssize_t) yy;
1798           if (yy > 2147483647)
1799             y=(ssize_t) yy-4294967295U-1;
1800           point[i].x=(double) x/4096/4096;
1801           point[i].y=1.0-(double) y/4096/4096;
1802         }
1803         if( IfMagickFalse(in_subpath) )
1804           {
1805             (void) FormatLocaleString(message,MaxTextExtent,"  %g %g m\n",
1806               point[1].x,point[1].y);
1807             for (i=0; i < 3; i++)
1808             {
1809               first[i]=point[i];
1810               last[i]=point[i];
1811             }
1812           }
1813         else
1814           {
1815             /*
1816               Handle special cases when Bezier curves are used to describe
1817               corners and straight lines.
1818             */
1819             if ((last[1].x == last[2].x) && (last[1].y == last[2].y) &&
1820                 (point[0].x == point[1].x) && (point[0].y == point[1].y))
1821               (void) FormatLocaleString(message,MaxTextExtent,
1822                 "  %g %g l\n",point[1].x,point[1].y);
1823             else
1824               if ((last[1].x == last[2].x) && (last[1].y == last[2].y))
1825                 (void) FormatLocaleString(message,MaxTextExtent,
1826                   "  %g %g %g %g v\n",point[0].x,point[0].y,
1827                   point[1].x,point[1].y);
1828               else
1829                 if ((point[0].x == point[1].x) && (point[0].y == point[1].y))
1830                   (void) FormatLocaleString(message,MaxTextExtent,
1831                     "  %g %g %g %g y\n",last[2].x,last[2].y,
1832                     point[1].x,point[1].y);
1833                 else
1834                   (void) FormatLocaleString(message,MaxTextExtent,
1835                     "  %g %g %g %g %g %g c\n",last[2].x,
1836                     last[2].y,point[0].x,point[0].y,point[1].x,point[1].y);
1837             for (i=0; i < 3; i++)
1838               last[i]=point[i];
1839           }
1840         (void) ConcatenateString(&path,message);
1841         in_subpath=MagickTrue;
1842         knot_count--;
1843         /*
1844           Close the subpath if there are no more knots.
1845         */
1846         if (knot_count == 0)
1847           {
1848             /*
1849               Same special handling as above except we compare to the
1850               first point in the path and close the path.
1851             */
1852             if ((last[1].x == last[2].x) && (last[1].y == last[2].y) &&
1853                 (first[0].x == first[1].x) && (first[0].y == first[1].y))
1854               (void) FormatLocaleString(message,MaxTextExtent,
1855                 "  %g %g l z\n",first[1].x,first[1].y);
1856             else
1857               if ((last[1].x == last[2].x) && (last[1].y == last[2].y))
1858                 (void) FormatLocaleString(message,MaxTextExtent,
1859                   "  %g %g %g %g v z\n",first[0].x,first[0].y,
1860                   first[1].x,first[1].y);
1861               else
1862                 if ((first[0].x == first[1].x) && (first[0].y == first[1].y))
1863                   (void) FormatLocaleString(message,MaxTextExtent,
1864                     "  %g %g %g %g y z\n",last[2].x,last[2].y,
1865                     first[1].x,first[1].y);
1866                 else
1867                   (void) FormatLocaleString(message,MaxTextExtent,
1868                     "  %g %g %g %g %g %g c z\n",last[2].x,
1869                     last[2].y,first[0].x,first[0].y,first[1].x,first[1].y);
1870             (void) ConcatenateString(&path,message);
1871             in_subpath=MagickFalse;
1872           }
1873         break;
1874       }
1875       case 6:
1876       case 7:
1877       case 8:
1878       default:
1879       {
1880         blob+=24;
1881         length-=MagickMin(24,(ssize_t) length);
1882         break;
1883       }
1884     }
1885   }
1886   /*
1887     Returns an empty PS path if the path has no knots.
1888   */
1889   (void) FormatLocaleString(message,MaxTextExtent,"  eoclip\n");
1890   (void) ConcatenateString(&path,message);
1891   (void) FormatLocaleString(message,MaxTextExtent,"} bind def");
1892   (void) ConcatenateString(&path,message);
1893   message=DestroyString(message);
1894   return(path);
1895 }
1896
1897 static char *TraceSVGClippath(const unsigned char *blob,size_t length,
1898   const size_t columns,const size_t rows)
1899 {
1900   char
1901     *path,
1902     *message;
1903
1904   MagickBooleanType
1905     in_subpath;
1906
1907   PointInfo
1908     first[3],
1909     last[3],
1910     point[3];
1911
1912   register ssize_t
1913     i;
1914
1915   ssize_t
1916     knot_count,
1917     selector,
1918     x,
1919     y;
1920
1921   path=AcquireString((char *) NULL);
1922   if (path == (char *) NULL)
1923     return((char *) NULL);
1924   message=AcquireString((char *) NULL);
1925   (void) FormatLocaleString(message,MaxTextExtent,
1926     "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>\n");
1927   (void) ConcatenateString(&path,message);
1928   (void) FormatLocaleString(message,MaxTextExtent,
1929     "<svg width=\"%.20g\" height=\"%.20g\">\n",(double) columns,(double) rows);
1930   (void) ConcatenateString(&path,message);
1931   (void) FormatLocaleString(message,MaxTextExtent,"<g>\n");
1932   (void) ConcatenateString(&path,message);
1933   (void) FormatLocaleString(message,MaxTextExtent,
1934     "<path style=\"fill:#00000000;stroke:#00000000;");
1935   (void) ConcatenateString(&path,message);
1936   (void) FormatLocaleString(message,MaxTextExtent,
1937     "stroke-width:0;stroke-antialiasing:false\" d=\"\n");
1938   (void) ConcatenateString(&path,message);
1939   (void) ResetMagickMemory(point,0,sizeof(point));
1940   (void) ResetMagickMemory(first,0,sizeof(first));
1941   (void) ResetMagickMemory(last,0,sizeof(last));
1942   knot_count=0;
1943   in_subpath=MagickFalse;
1944   while (length != 0)
1945   {
1946     selector=(ssize_t) ((int) ReadPropertyMSBShort(&blob,&length));
1947     switch (selector)
1948     {
1949       case 0:
1950       case 3:
1951       {
1952         if (knot_count != 0)
1953           {
1954             blob+=24;
1955             length-=MagickMin(24,(ssize_t) length);
1956             break;
1957           }
1958         /*
1959           Expected subpath length record.
1960         */
1961         knot_count=(ssize_t) ((int) ReadPropertyMSBShort(&blob,&length));
1962         blob+=22;
1963         length-=MagickMin(22,(ssize_t) length);
1964         break;
1965       }
1966       case 1:
1967       case 2:
1968       case 4:
1969       case 5:
1970       {
1971         if (knot_count == 0)
1972           {
1973             /*
1974               Unexpected subpath knot.
1975             */
1976             blob+=24;
1977             length-=MagickMin(24,(ssize_t) length);
1978             break;
1979           }
1980         /*
1981           Add sub-path knot
1982         */
1983         for (i=0; i < 3; i++)
1984         {
1985           size_t
1986             xx,
1987             yy;
1988
1989           yy=(size_t) ((int) ReadPropertyMSBLong(&blob,&length));
1990           xx=(size_t) ((int) ReadPropertyMSBLong(&blob,&length));
1991           x=(ssize_t) xx;
1992           if (xx > 2147483647)
1993             x=(ssize_t) xx-4294967295U-1;
1994           y=(ssize_t) yy;
1995           if (yy > 2147483647)
1996             y=(ssize_t) yy-4294967295U-1;
1997           point[i].x=(double) x*columns/4096/4096;
1998           point[i].y=(double) y*rows/4096/4096;
1999         }
2000         if (in_subpath == MagickFalse)
2001           {
2002             (void) FormatLocaleString(message,MaxTextExtent,"M %g %g\n",
2003               point[1].x,point[1].y);
2004             for (i=0; i < 3; i++)
2005             {
2006               first[i]=point[i];
2007               last[i]=point[i];
2008             }
2009           }
2010         else
2011           {
2012             /*
2013               Handle special cases when Bezier curves are used to describe
2014               corners and straight lines.
2015             */
2016             if ((last[1].x == last[2].x) && (last[1].y == last[2].y) &&
2017                 (point[0].x == point[1].x) && (point[0].y == point[1].y))
2018               (void) FormatLocaleString(message,MaxTextExtent,
2019                 "L %g %g\n",point[1].x,point[1].y);
2020             else
2021               if ((last[1].x == last[2].x) && (last[1].y == last[2].y))
2022                 (void) FormatLocaleString(message,MaxTextExtent,
2023                   "V %g %g %g %g\n",point[0].x,point[0].y,
2024                   point[1].x,point[1].y);
2025               else
2026                 if ((point[0].x == point[1].x) && (point[0].y == point[1].y))
2027                   (void) FormatLocaleString(message,MaxTextExtent,
2028                     "Y %g %g %g %g\n",last[2].x,last[2].y,
2029                     point[1].x,point[1].y);
2030                 else
2031                   (void) FormatLocaleString(message,MaxTextExtent,
2032                     "C %g %g %g %g %g %g\n",last[2].x,
2033                     last[2].y,point[0].x,point[0].y,point[1].x,point[1].y);
2034             for (i=0; i < 3; i++)
2035               last[i]=point[i];
2036           }
2037         (void) ConcatenateString(&path,message);
2038         in_subpath=MagickTrue;
2039         knot_count--;
2040         /*
2041           Close the subpath if there are no more knots.
2042         */
2043         if (knot_count == 0)
2044           {
2045            /*
2046               Same special handling as above except we compare to the
2047               first point in the path and close the path.
2048             */
2049             if ((last[1].x == last[2].x) && (last[1].y == last[2].y) &&
2050                 (first[0].x == first[1].x) && (first[0].y == first[1].y))
2051               (void) FormatLocaleString(message,MaxTextExtent,
2052                 "L %g %g Z\n",first[1].x,first[1].y);
2053             else
2054               if ((last[1].x == last[2].x) && (last[1].y == last[2].y))
2055                 (void) FormatLocaleString(message,MaxTextExtent,
2056                   "V %g %g %g %g Z\n",first[0].x,first[0].y,
2057                   first[1].x,first[1].y);
2058               else
2059                 if ((first[0].x == first[1].x) && (first[0].y == first[1].y))
2060                   (void) FormatLocaleString(message,MaxTextExtent,
2061                     "Y %g %g %g %g Z\n",last[2].x,last[2].y,
2062                     first[1].x,first[1].y);
2063                 else
2064                   (void) FormatLocaleString(message,MaxTextExtent,
2065                     "C %g %g %g %g %g %g Z\n",last[2].x,
2066                     last[2].y,first[0].x,first[0].y,first[1].x,first[1].y);
2067             (void) ConcatenateString(&path,message);
2068             in_subpath=MagickFalse;
2069           }
2070         break;
2071       }
2072       case 6:
2073       case 7:
2074       case 8:
2075       default:
2076       {
2077         blob+=24;
2078         length-=MagickMin(24,(ssize_t) length);
2079         break;
2080       }
2081     }
2082   }
2083   /*
2084     Return an empty SVG image if the path does not have knots.
2085   */
2086   (void) FormatLocaleString(message,MaxTextExtent,"\"/>\n");
2087   (void) ConcatenateString(&path,message);
2088   (void) FormatLocaleString(message,MaxTextExtent,"</g>\n");
2089   (void) ConcatenateString(&path,message);
2090   (void) FormatLocaleString(message,MaxTextExtent,"</svg>\n");
2091   (void) ConcatenateString(&path,message);
2092   message=DestroyString(message);
2093   return(path);
2094 }
2095
2096 MagickExport const char *GetImageProperty(const Image *image,
2097   const char *property,ExceptionInfo *exception)
2098 {
2099   register const char
2100     *p;
2101
2102   assert(image != (Image *) NULL);
2103   assert(image->signature == MagickSignature);
2104   if (IfMagickTrue(image->debug))
2105     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2106   p=(const char *) NULL;
2107   if (image->properties != (void *) NULL)
2108     {
2109       if (property == (const char *) NULL)
2110         {
2111           ResetSplayTreeIterator((SplayTreeInfo *) image->properties);
2112           p=(const char *) GetNextValueInSplayTree((SplayTreeInfo *)
2113             image->properties);
2114           return(p);
2115         }
2116         p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)
2117           image->properties,property);
2118         if (p != (const char *) NULL)
2119           return(p);
2120     }
2121   if ((property == (const char *) NULL) ||
2122       (strchr(property,':') == (char *) NULL))
2123     return(p);
2124   switch (*property)
2125   {
2126     case '8':
2127     {
2128       if (LocaleNCompare("8bim:",property,5) == 0)
2129         {
2130           (void) Get8BIMProperty(image,property,exception);
2131           break;
2132         }
2133       break;
2134     }
2135     case 'E':
2136     case 'e':
2137     {
2138       if (LocaleNCompare("exif:",property,5) == 0)
2139         {
2140           (void) GetEXIFProperty(image,property,exception);
2141           break;
2142         }
2143       break;
2144     }
2145     case 'I':
2146     case 'i':
2147     {
2148       if ((LocaleNCompare("icc:",property,4) == 0) ||
2149           (LocaleNCompare("icm:",property,4) == 0))
2150         {
2151           (void) GetICCProperty(image,property,exception);
2152           break;
2153         }
2154       if (LocaleNCompare("iptc:",property,5) == 0)
2155         {
2156           (void) GetIPTCProperty(image,property,exception);
2157           break;
2158         }
2159       break;
2160     }
2161     case 'X':
2162     case 'x':
2163     {
2164       if (LocaleNCompare("xmp:",property,4) == 0)
2165         {
2166           (void) GetXMPProperty(image,property);
2167           break;
2168         }
2169       break;
2170     }
2171     default:
2172       break;
2173   }
2174   if (image->properties != (void *) NULL)
2175     {
2176       p=(const char *) GetValueFromSplayTree((SplayTreeInfo *)
2177         image->properties,property);
2178       return(p);
2179     }
2180   return((const char *) NULL);
2181 }
2182 \f
2183 /*
2184 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2185 %                                                                             %
2186 %                                                                             %
2187 %                                                                             %
2188 +   G e t M a g i c k P r o p e r t y                                         %
2189 %                                                                             %
2190 %                                                                             %
2191 %                                                                             %
2192 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2193 %
2194 %  GetMagickProperty() gets attributes or calculated values that is associated
2195 %  with a fixed known property name, or single letter property. It may be
2196 %  called if no image is defined (IMv7), in which case only global image_info
2197 %  values are available.
2198 %
2199 %  This routine only handles specifically known properties.  It does not
2200 %  handle special prefixed properties, profiles, or expressions. Nor does
2201 %  it return any free-form property strings.
2202 %
2203 %  The returned string is stored in a structure somewhere, and should not be
2204 %  directly freed.  If the string was generated (common) the string will be
2205 %  stored as as either as artifact or option 'get-property'.  These may be
2206 %  deleted (cleaned up) when no longer required, but neither artifact or
2207 %  option is guranteed to exist.
2208 %
2209 %  The format of the GetMagickProperty method is:
2210 %
2211 %      const char *GetMagickProperty(ImageInfo *image_info,Image *image,
2212 %        const char *property,ExceptionInfo *exception)
2213 %
2214 %  A description of each parameter follows:
2215 %
2216 %    o image_info: the image info (optional)
2217 %
2218 %    o image: the image (optional)
2219 %
2220 %    o key: the key.
2221 %
2222 %    o exception: return any errors or warnings in this structure.
2223 %
2224 */
2225 #define WarnNoImageReturn(format,arg) \
2226   if (image == (Image *) NULL ) { \
2227     (void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, \
2228         "NoImageForProperty",format,arg); \
2229     return((const char *)NULL); \
2230   }
2231 #define WarnNoImageInfoReturn(format,arg) \
2232   if (image_info == (ImageInfo *) NULL ) { \
2233     (void) ThrowMagickException(exception,GetMagickModule(),OptionWarning, \
2234         "NoImageInfoForProperty",format,arg); \
2235     return((const char *)NULL); \
2236   }
2237
2238 static const char *GetMagickPropertyLetter(ImageInfo *image_info,
2239   Image *image,const char letter,ExceptionInfo *exception)
2240 {
2241   char
2242     value[MaxTextExtent];  /* formated string to store as a returned artifact */
2243
2244   const char
2245     *string;     /* return a string already stored somewher */
2246
2247   if (image != (Image *) NULL && IfMagickTrue(image->debug))
2248     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2249   else if( image_info != (ImageInfo *) NULL && IfMagickTrue(image_info->debug))
2250     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-images");
2251
2252   *value='\0';           /* formatted string */
2253   string=(char *) NULL;  /* constant string reference */
2254
2255   /* Get properities that are directly defined by images */
2256   switch (letter)
2257   {
2258     case 'b':  /* image size read in - in bytes */
2259     {
2260       WarnNoImageReturn("\"%%%c\"",letter);
2261       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2262         ((MagickOffsetType) image->extent));
2263       if (image->extent != (MagickSizeType) ((size_t) image->extent))
2264         (void) FormatMagickSize(image->extent,MagickFalse,value);
2265       ConcatenateMagickString(value,"B",MaxTextExtent);
2266       break;
2267     }
2268     case 'c':  /* image comment property - empty string by default */
2269     {
2270       WarnNoImageReturn("\"%%%c\"",letter);
2271       string=GetImageProperty(image,"comment",exception);
2272       if ( string == (const char *) NULL )
2273         string="";
2274       break;
2275     }
2276     case 'd':  /* Directory component of filename */
2277     {
2278       WarnNoImageReturn("\"%%%c\"",letter);
2279       GetPathComponent(image->magick_filename,HeadPath,value);
2280       if (*value == '\0') string="";
2281       break;
2282     }
2283     case 'e': /* Filename extension (suffix) of image file */
2284     {
2285       WarnNoImageReturn("\"%%%c\"",letter);
2286       GetPathComponent(image->magick_filename,ExtensionPath,value);
2287       if (*value == '\0') string="";
2288       break;
2289     }
2290     case 'f': /* Filename without directory component */
2291     {
2292       WarnNoImageReturn("\"%%%c\"",letter);
2293       GetPathComponent(image->magick_filename,TailPath,value);
2294       if (*value == '\0') string="";
2295       break;
2296     }
2297     case 'g': /* Image geometry, canvas and offset  %Wx%H+%X+%Y */
2298     {
2299       WarnNoImageReturn("\"%%%c\"",letter);
2300       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g%+.20g%+.20g",
2301         (double) image->page.width,(double) image->page.height,
2302         (double) image->page.x,(double) image->page.y);
2303       break;
2304     }
2305     case 'h': /* Image height (current) */
2306     {
2307       WarnNoImageReturn("\"%%%c\"",letter);
2308       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2309         (image->rows != 0 ? image->rows : image->magick_rows));
2310       break;
2311     }
2312     case 'i': /* Filename last used for an image (read or write) */
2313     {
2314       WarnNoImageReturn("\"%%%c\"",letter);
2315       string=image->filename;
2316       break;
2317     }
2318     case 'k': /* Number of unique colors  */
2319     {
2320       /*
2321         FUTURE: ensure this does not generate the formatted comment!
2322       */
2323       WarnNoImageReturn("\"%%%c\"",letter);
2324       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2325         GetNumberColors(image,(FILE *) NULL,exception));
2326       break;
2327     }
2328     case 'l': /* Image label property - empty string by default */
2329     {
2330       WarnNoImageReturn("\"%%%c\"",letter);
2331       string=GetImageProperty(image,"label",exception);
2332       if ( string == (const char *) NULL)
2333         string="";
2334       break;
2335     }
2336     case 'm': /* Image format (file magick) */
2337     {
2338       WarnNoImageReturn("\"%%%c\"",letter);
2339       string=image->magick;
2340       break;
2341     }
2342     case 'n': /* Number of images in the list.  */
2343     {
2344       if ( image != (Image *) NULL )
2345         (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2346           GetImageListLength(image));
2347       else
2348         string="0";    /* no images or scenes */
2349       break;
2350     }
2351     case 'o': /* Output Filename - for delegate use only */
2352       WarnNoImageInfoReturn("\"%%%c\"",letter);
2353       string=image_info->filename;
2354       break;
2355     case 'p': /* Image index in current image list */
2356     {
2357       WarnNoImageReturn("\"%%%c\"",letter);
2358       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2359         GetImageIndexInList(image));
2360       break;
2361     }
2362     case 'q': /* Quantum depth of image in memory */
2363     {
2364       WarnNoImageReturn("\"%%%c\"",letter);
2365       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2366         MAGICKCORE_QUANTUM_DEPTH);
2367       break;
2368     }
2369     case 'r': /* Image storage class, colorspace, and alpha enabled.  */
2370     {
2371       ColorspaceType
2372         colorspace;
2373
2374       WarnNoImageReturn("\"%%%c\"",letter);
2375       colorspace=image->colorspace;
2376       if (IfMagickTrue(IsImageGray(image,exception)))
2377         colorspace=GRAYColorspace;   /* FUTURE: this is IMv6 not IMv7 */
2378       (void) FormatLocaleString(value,MaxTextExtent,"%s %s %s",
2379         CommandOptionToMnemonic(MagickClassOptions,(ssize_t) image->storage_class),
2380         CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t) colorspace),
2381         image->alpha_trait == BlendPixelTrait ? "Alpha" : "");
2382       break;
2383     }
2384     case 's': /* Image scene number */
2385     {
2386 #if 0  /* this seems non-sensical -- simplifing */
2387       if (image_info->number_scenes != 0)
2388         (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2389           image_info->scene);
2390       else if (image != (Image *)NULL)
2391         (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2392           image->scene);
2393       else
2394           string="0";
2395 #else
2396       WarnNoImageReturn("\"%%%c\"",letter);
2397       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2398          image->scene);
2399 #endif
2400       break;
2401     }
2402     case 't': /* Base filename without directory or extention */
2403     {
2404       WarnNoImageReturn("\"%%%c\"",letter);
2405       GetPathComponent(image->magick_filename,BasePath,value);
2406       if (*value == '\0') string="";
2407       break;
2408     }
2409     case 'u': /* Unique filename */
2410       WarnNoImageInfoReturn("\"%%%c\"",letter);
2411       string=image_info->unique;
2412       break;
2413     case 'w': /* Image width (current) */
2414     {
2415       WarnNoImageReturn("\"%%%c\"",letter);
2416       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2417         (image->columns != 0 ? image->columns : image->magick_columns));
2418       break;
2419     }
2420     case 'x': /* Image horizontal resolution (with units) */
2421     {
2422       WarnNoImageReturn("\"%%%c\"",letter);
2423       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2424         fabs(image->resolution.x) > MagickEpsilon ? image->resolution.x : 72.0);
2425       break;
2426     }
2427     case 'y': /* Image vertical resolution (with units) */
2428     {
2429       WarnNoImageReturn("\"%%%c\"",letter);
2430       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2431         fabs(image->resolution.y) > MagickEpsilon ? image->resolution.y : 72.0);
2432       break;
2433     }
2434     case 'z': /* Image depth as read in */
2435     {
2436       WarnNoImageReturn("\"%%%c\"",letter);
2437       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2438         (double) image->depth);
2439       break;
2440     }
2441     case 'A': /* Image alpha channel  */
2442     {
2443       WarnNoImageReturn("\"%%%c\"",letter);
2444       string=CommandOptionToMnemonic(MagickBooleanOptions,
2445         (ssize_t) image->alpha_trait);
2446       break;
2447     }
2448     case 'C': /* Image compression method.  */
2449     {
2450       WarnNoImageReturn("\"%%%c\"",letter);
2451       string=CommandOptionToMnemonic(MagickCompressOptions,
2452         (ssize_t) image->compression);
2453       break;
2454     }
2455     case 'D': /* Image dispose method.  */
2456     {
2457       WarnNoImageReturn("\"%%%c\"",letter);
2458       string=CommandOptionToMnemonic(MagickDisposeOptions,
2459         (ssize_t) image->dispose);
2460       break;
2461     }
2462     case 'G': /* Image size as geometry = "%wx%h" */
2463     {
2464       WarnNoImageReturn("\"%%%c\"",letter);
2465       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",
2466         (double)image->magick_columns,(double) image->magick_rows);
2467       break;
2468     }
2469     case 'H': /* layer canvas height */
2470     {
2471       WarnNoImageReturn("\"%%%c\"",letter);
2472       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2473         (double) image->page.height);
2474       break;
2475     }
2476     case 'M': /* Magick filename - filename given incl. coder & read mods */
2477     {
2478       WarnNoImageReturn("\"%%%c\"",letter);
2479       string=image->magick_filename;
2480       break;
2481     }
2482     case 'O': /* layer canvas offset with sign = "+%X+%Y" */
2483     {
2484       WarnNoImageReturn("\"%%%c\"",letter);
2485       (void) FormatLocaleString(value,MaxTextExtent,"%+ld%+ld",(long)
2486         image->page.x,(long) image->page.y);
2487       break;
2488     }
2489     case 'P': /* layer canvas page size = "%Wx%H" */
2490     {
2491       WarnNoImageReturn("\"%%%c\"",letter);
2492       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",
2493         (double) image->page.width,(double) image->page.height);
2494       break;
2495     }
2496     case 'Q': /* image compression quality */
2497     {
2498       WarnNoImageReturn("\"%%%c\"",letter);
2499       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2500         (image->quality == 0 ? 92 : image->quality));
2501       break;
2502     }
2503     case 'S': /* Number of scenes in image list.  */
2504     {
2505       WarnNoImageInfoReturn("\"%%%c\"",letter);
2506 #if 0 /* What is this number? -- it makes no sense - simplifing */
2507       if (image_info->number_scenes == 0)
2508          string="2147483647";
2509       else if ( image != (Image *) NULL )
2510         (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2511                 image_info->scene+image_info->number_scenes);
2512       else
2513         string="0";
2514 #else
2515       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2516         (image_info->number_scenes == 0 ? 2147483647 :
2517          image_info->number_scenes));
2518 #endif
2519       break;
2520     }
2521     case 'T': /* image time delay for animations */
2522     {
2523       WarnNoImageReturn("\"%%%c\"",letter);
2524       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2525         image->delay);
2526       break;
2527     }
2528     case 'U': /* Image resolution units. */
2529     {
2530       WarnNoImageReturn("\"%%%c\"",letter);
2531       string=CommandOptionToMnemonic(MagickResolutionOptions,
2532         (ssize_t) image->units);
2533       break;
2534     }
2535     case 'W': /* layer canvas width */
2536     {
2537       WarnNoImageReturn("\"%%%c\"",letter);
2538       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2539         image->page.width);
2540       break;
2541     }
2542     case 'X': /* layer canvas X offset */
2543     {
2544       WarnNoImageReturn("\"%%%c\"",letter);
2545       (void) FormatLocaleString(value,MaxTextExtent,"%+.20g",(double)
2546         image->page.x);
2547       break;
2548     }
2549     case 'Y': /* layer canvas Y offset */
2550     {
2551       WarnNoImageReturn("\"%%%c\"",letter);
2552       (void) FormatLocaleString(value,MaxTextExtent,"%+.20g",(double)
2553         image->page.y);
2554       break;
2555     }
2556     case 'Z': /* Zero filename ??? */
2557       WarnNoImageInfoReturn("\"%%%c\"",letter);
2558       string=image_info->zero;
2559       break;
2560     case '%': /* percent escaped */
2561       string="%";
2562       break;
2563     case '@': /* Trim bounding box, without actually Trimming! */
2564     {
2565       RectangleInfo
2566         page;
2567
2568       WarnNoImageReturn("\"%%%c\"",letter);
2569       page=GetImageBoundingBox(image,exception);
2570       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g%+.20g%+.20g",
2571         (double) page.width,(double) page.height,(double) page.x,(double)
2572         page.y);
2573       break;
2574     }
2575     case '#':
2576     {
2577       /*
2578         Image signature.
2579       */
2580       WarnNoImageReturn("\"%%%c\"",letter);
2581       (void) SignatureImage(image,exception);
2582       string=GetImageProperty(image,"signature",exception);
2583       break;
2584     }
2585   }
2586   if (string != (char *) NULL)
2587     return(string);
2588   if (*value != '\0')
2589     {
2590       /*
2591         Create a cloned copy of result.
2592       */
2593       if (image != (Image *)NULL)
2594         {
2595           (void) SetImageArtifact(image,"get-property",value);
2596           return(GetImageArtifact(image,"get-property"));
2597         }
2598       else
2599         {
2600           (void) SetImageOption(image_info,"get-property",value);
2601           return(GetImageOption(image_info,"get-property"));
2602         }
2603     }
2604   return((char *)NULL);
2605 }
2606
2607 MagickExport const char *GetMagickProperty(ImageInfo *image_info,
2608   Image *image,const char *property,ExceptionInfo *exception)
2609 {
2610   char
2611     value[MaxTextExtent];
2612
2613   const char
2614     *string;
2615
2616   assert(property[0] != '\0');
2617   assert(image != (Image *)NULL || image_info != (ImageInfo *)NULL );
2618
2619   if (property[1] == '\0')  /* single letter property request */
2620     return(GetMagickPropertyLetter(image_info,image,*property,exception));
2621
2622   if (image != (Image *) NULL && IfMagickTrue(image->debug))
2623     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
2624   else if( image_info != (ImageInfo *) NULL && IfMagickTrue(image_info->debug))
2625     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-images");
2626
2627   *value='\0';           /* formated string */
2628   string=(char *) NULL;  /* constant string reference */
2629   switch (*property)
2630   {
2631     case 'b':
2632     {
2633       if ((LocaleCompare("base",property) == 0) ||
2634           (LocaleCompare("basename",property) == 0) )
2635         {
2636           WarnNoImageReturn("\"%%[%s]\"",property);
2637           GetPathComponent(image->magick_filename,BasePath,value);
2638           if (*value == '\0') string="";
2639           break;
2640         }
2641       if (LocaleCompare("bit-depth",property) == 0)
2642         {
2643           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2644             GetImageDepth(image, exception));
2645           break;
2646         }
2647       break;
2648     }
2649     case 'c':
2650     {
2651       if (LocaleCompare("channels",property) == 0)
2652         {
2653           WarnNoImageReturn("\"%%[%s]\"",property);
2654           /* FUTURE: return actual image channels */
2655           (void) FormatLocaleString(value,MaxTextExtent,"%s",
2656             CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t)
2657             image->colorspace));
2658           LocaleLower(value);
2659           if( image->alpha_trait == BlendPixelTrait )
2660             (void) ConcatenateMagickString(value,"a",MaxTextExtent);
2661           break;
2662         }
2663       if (LocaleCompare("colorspace",property) == 0)
2664         {
2665           WarnNoImageReturn("\"%%[%s]\"",property);
2666           /* FUTURE: return actual colorspace - no 'gray' stuff */
2667           string=CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t)
2668             image->colorspace);
2669           break;
2670         }
2671       if (LocaleCompare("copyright",property) == 0)
2672         {
2673           (void) CopyMagickString(value,GetMagickCopyright(),MaxTextExtent);
2674           break;
2675         }
2676       break;
2677     }
2678     case 'd':
2679     {
2680       if (LocaleCompare("depth",property) == 0)
2681         {
2682           WarnNoImageReturn("\"%%[%s]\"",property);
2683           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2684             image->depth);
2685           break;
2686         }
2687       if (LocaleCompare("directory",property) == 0)
2688         {
2689           WarnNoImageReturn("\"%%[%s]\"",property);
2690           GetPathComponent(image->magick_filename,HeadPath,value);
2691           if (*value == '\0') string="";
2692           break;
2693         }
2694       break;
2695     }
2696     case 'e':
2697     {
2698       if (LocaleCompare("extension",property) == 0)
2699         {
2700           WarnNoImageReturn("\"%%[%s]\"",property);
2701           GetPathComponent(image->magick_filename,ExtensionPath,value);
2702           if (*value == '\0') string="";
2703           break;
2704         }
2705       break;
2706     }
2707     case 'g':
2708     {
2709       if (LocaleCompare("gamma",property) == 0)
2710         {
2711           WarnNoImageReturn("\"%%[%s]\"",property);
2712           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2713             GetMagickPrecision(),image->gamma);
2714           break;
2715         }
2716       if (LocaleCompare("group",property) == 0)
2717         {
2718           WarnNoImageInfoReturn("\"%%[%s]\"",property);
2719           (void) FormatLocaleString(value,MaxTextExtent,"0x%lx",(unsigned long)
2720             image_info->group);
2721           break;
2722         }
2723       break;
2724     }
2725     case 'h':
2726     {
2727       if (LocaleCompare("height",property) == 0)
2728         {
2729           WarnNoImageReturn("\"%%[%s]\"",property);
2730           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
2731             image->magick_rows != 0 ? (double) image->magick_rows : 256.0);
2732           break;
2733         }
2734       break;
2735     }
2736     case 'i':
2737     {
2738       if (LocaleCompare("input",property) == 0)
2739         {
2740           WarnNoImageReturn("\"%%[%s]\"",property);
2741           string=image->filename;
2742           break;
2743         }
2744       break;
2745     }
2746     case 'k':
2747     {
2748       if (LocaleCompare("kurtosis",property) == 0)
2749         {
2750           double
2751             kurtosis,
2752             skewness;
2753
2754           WarnNoImageReturn("\"%%[%s]\"",property);
2755           (void) GetImageKurtosis(image,&kurtosis,&skewness,exception);
2756           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2757             GetMagickPrecision(),kurtosis);
2758           break;
2759         }
2760       break;
2761     }
2762     case 'm':
2763     {
2764       if (LocaleCompare("magick",property) == 0)
2765         {
2766           WarnNoImageReturn("\"%%[%s]\"",property);
2767           string=image->magick;
2768           break;
2769         }
2770       if (LocaleCompare("max",property) == 0)
2771         {
2772           double
2773             maximum,
2774             minimum;
2775
2776           WarnNoImageReturn("\"%%[%s]\"",property);
2777           (void) GetImageRange(image,&minimum,&maximum,exception);
2778           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2779             GetMagickPrecision(),maximum);
2780           break;
2781         }
2782       if (LocaleCompare("mean",property) == 0)
2783         {
2784           double
2785             mean,
2786             standard_deviation;
2787
2788           WarnNoImageReturn("\"%%[%s]\"",property);
2789           (void) GetImageMean(image,&mean,&standard_deviation,exception);
2790           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2791             GetMagickPrecision(),mean);
2792           break;
2793         }
2794       if (LocaleCompare("min",property) == 0)
2795         {
2796           double
2797             maximum,
2798             minimum;
2799
2800           WarnNoImageReturn("\"%%[%s]\"",property);
2801           (void) GetImageRange(image,&minimum,&maximum,exception);
2802           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2803             GetMagickPrecision(),minimum);
2804           break;
2805         }
2806       break;
2807     }
2808     case 'o':
2809     {
2810       if (LocaleCompare("opaque",property) == 0)
2811         {
2812           WarnNoImageReturn("\"%%[%s]\"",property);
2813           string=CommandOptionToMnemonic(MagickBooleanOptions,
2814                (ssize_t) IsImageOpaque(image,exception));
2815           break;
2816         }
2817       if (LocaleCompare("orientation",property) == 0)
2818         {
2819           WarnNoImageReturn("\"%%[%s]\"",property);
2820           string=CommandOptionToMnemonic(MagickOrientationOptions,(ssize_t)
2821             image->orientation);
2822           break;
2823         }
2824       if (LocaleCompare("output",property) == 0)
2825         {
2826           WarnNoImageInfoReturn("\"%%[%s]\"",property);
2827           (void) CopyMagickString(value,image_info->filename,MaxTextExtent);
2828           break;
2829         }
2830      break;
2831     }
2832     case 'p':
2833     {
2834 #if defined(MAGICKCORE_LCMS_DELEGATE)
2835       if (LocaleCompare("profile:icc",property) == 0 ||
2836           LocaleCompare("profile:icm",property) == 0)
2837         {
2838 #if !defined(LCMS_VERSION) || (LCMS_VERSION < 2000)
2839 #define cmsUInt32Number  DWORD
2840 #endif
2841
2842           const StringInfo
2843             *profile;
2844
2845           cmsHPROFILE
2846             icc_profile;
2847
2848           profile=GetImageProfile(image,property+8);
2849           if (profile == (StringInfo *) NULL)
2850             break;
2851
2852           icc_profile=cmsOpenProfileFromMem(GetStringInfoDatum(profile),
2853             (cmsUInt32Number) GetStringInfoLength(profile));
2854           if (icc_profile != (cmsHPROFILE *) NULL)
2855             {
2856 #if defined(LCMS_VERSION) && (LCMS_VERSION < 2000)
2857               string=cmsTakeProductName(icc_profile);
2858 #else
2859               (void) cmsGetProfileInfoASCII(icc_profile,cmsInfoDescription,
2860                 "en","US",value,MaxTextExtent);
2861 #endif
2862               (void) cmsCloseProfile(icc_profile);
2863             }
2864       }
2865 #endif
2866       if (LocaleCompare("profiles",property) == 0)
2867         {
2868           const char
2869             *name;
2870
2871           ResetImageProfileIterator(image);
2872           name=GetNextImageProfile(image);
2873           if (name != (char *) NULL)
2874             {
2875               (void) CopyMagickString(value,name,MaxTextExtent);
2876               name=GetNextImageProfile(image);
2877               while (name != (char *) NULL)
2878               {
2879                 ConcatenateMagickString(value,",",MaxTextExtent);
2880                 ConcatenateMagickString(value,name,MaxTextExtent);
2881                 name=GetNextImageProfile(image);
2882               }
2883             }
2884           break;
2885         }
2886       break;
2887     }
2888     case 'r':
2889     {
2890       if (LocaleCompare("resolution.x",property) == 0)
2891         {
2892           WarnNoImageReturn("\"%%[%s]\"",property);
2893           (void) FormatLocaleString(value,MaxTextExtent,"%g",
2894             image->resolution.x);
2895           break;
2896         }
2897       if (LocaleCompare("resolution.y",property) == 0)
2898         {
2899           WarnNoImageReturn("\"%%[%s]\"",property);
2900           (void) FormatLocaleString(value,MaxTextExtent,"%g",
2901             image->resolution.y);
2902           break;
2903         }
2904       break;
2905     }
2906     case 's':
2907     {
2908       if (LocaleCompare("scene",property) == 0)
2909         {
2910           WarnNoImageInfoReturn("\"%%[%s]\"",property);
2911           if (image_info->number_scenes != 0)
2912             (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2913               image_info->scene);
2914           else {
2915             WarnNoImageReturn("\"%%[%s]\"",property);
2916             (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2917               image->scene);
2918           }
2919           break;
2920         }
2921       if (LocaleCompare("scenes",property) == 0)
2922         {
2923           /* FUTURE: equivelent to %n? */
2924           WarnNoImageReturn("\"%%[%s]\"",property);
2925           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
2926             GetImageListLength(image));
2927           break;
2928         }
2929       if (LocaleCompare("size",property) == 0)
2930         {
2931           char
2932             format[MaxTextExtent];
2933
2934           WarnNoImageReturn("\"%%[%s]\"",property);
2935           (void) FormatMagickSize(GetBlobSize(image),MagickFalse,format);
2936           (void) FormatLocaleString(value,MaxTextExtent,"%sB",format);
2937           break;
2938         }
2939       if (LocaleCompare("skewness",property) == 0)
2940         {
2941           double
2942             kurtosis,
2943             skewness;
2944
2945           WarnNoImageReturn("\"%%[%s]\"",property);
2946           (void) GetImageKurtosis(image,&kurtosis,&skewness,exception);
2947           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2948             GetMagickPrecision(),skewness);
2949           break;
2950         }
2951       if ((LocaleCompare("standard-deviation",property) == 0) ||
2952           (LocaleCompare("standard_deviation",property) == 0))
2953         {
2954           double
2955             mean,
2956             standard_deviation;
2957
2958           WarnNoImageReturn("\"%%[%s]\"",property);
2959           (void) GetImageMean(image,&mean,&standard_deviation,exception);
2960           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
2961             GetMagickPrecision(),standard_deviation);
2962           break;
2963         }
2964        break;
2965     }
2966     case 't':
2967     {
2968       if (LocaleCompare("type",property) == 0)
2969         {
2970           WarnNoImageReturn("\"%%[%s]\"",property);
2971           string=CommandOptionToMnemonic(MagickTypeOptions,(ssize_t)
2972             GetImageType(image,exception));
2973           break;
2974         }
2975        break;
2976     }
2977     case 'u':
2978     {
2979       if (LocaleCompare("unique",property) == 0)
2980         {
2981           WarnNoImageInfoReturn("\"%%[%s]\"",property);
2982           string=image_info->unique;
2983           break;
2984         }
2985       if (LocaleCompare("units",property) == 0)
2986         {
2987           WarnNoImageReturn("\"%%[%s]\"",property);
2988           string=CommandOptionToMnemonic(MagickResolutionOptions,(ssize_t)
2989             image->units);
2990           break;
2991         }
2992       if (LocaleCompare("copyright",property) == 0)
2993       break;
2994     }
2995     case 'v':
2996     {
2997       if (LocaleCompare("version",property) == 0)
2998         {
2999           string=GetMagickVersion((size_t *) NULL);
3000           break;
3001         }
3002       break;
3003     }
3004     case 'w':
3005     {
3006       if (LocaleCompare("width",property) == 0)
3007         {
3008           WarnNoImageReturn("\"%%[%s]\"",property);
3009           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
3010             (image->magick_columns != 0 ? image->magick_columns : 256));
3011           break;
3012         }
3013       break;
3014     }
3015     case 'x': /* FUTURE: Obsolete X resolution */
3016     {
3017       if ((LocaleCompare("xresolution",property) == 0) ||
3018           (LocaleCompare("x-resolution",property) == 0) )
3019         {
3020           WarnNoImageReturn("\"%%[%s]\"",property);
3021           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
3022             image->resolution.x);
3023           break;
3024         }
3025       break;
3026     }
3027     case 'y': /* FUTURE: Obsolete Y resolution */
3028     {
3029       if ((LocaleCompare("yresolution",property) == 0) ||
3030           (LocaleCompare("y-resolution",property) == 0) )
3031         {
3032           WarnNoImageReturn("\"%%[%s]\"",property);
3033           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
3034             image->resolution.y);
3035           break;
3036         }
3037       break;
3038     }
3039     case 'z':
3040     {
3041       if (LocaleCompare("zero",property) == 0)
3042         {
3043           WarnNoImageInfoReturn("\"%%[%s]\"",property);
3044           string=image_info->zero;
3045           break;
3046         }
3047       break;
3048     }
3049   }
3050   if (string != (char *) NULL)
3051     return(string);
3052   if (*value != '\0')
3053   {
3054     /* create a cloned copy of result, that will get cleaned up, eventually */
3055     if (image != (Image *)NULL)
3056       {
3057         (void) SetImageArtifact(image,"get-property",value);
3058         return(GetImageArtifact(image,"get-property"));
3059       }
3060     else
3061       {
3062         (void) SetImageOption(image_info,"get-property",value);
3063         return(GetImageOption(image_info,"get-property"));
3064       }
3065   }
3066   return((char *)NULL);
3067 }
3068 #undef WarnNoImageReturn
3069 \f
3070 /*
3071 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3072 %                                                                             %
3073 %                                                                             %
3074 %                                                                             %
3075 %   G e t N e x t I m a g e P r o p e r t y                                   %
3076 %                                                                             %
3077 %                                                                             %
3078 %                                                                             %
3079 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3080 %
3081 %  GetNextImageProperty() gets the next free-form string property name.
3082 %
3083 %  The format of the GetNextImageProperty method is:
3084 %
3085 %      char *GetNextImageProperty(const Image *image)
3086 %
3087 %  A description of each parameter follows:
3088 %
3089 %    o image: the image.
3090 %
3091 */
3092 MagickExport char *GetNextImageProperty(const Image *image)
3093 {
3094   assert(image != (Image *) NULL);
3095   assert(image->signature == MagickSignature);
3096   if( IfMagickTrue(image->debug) )
3097     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3098       image->filename);
3099   if (image->properties == (void *) NULL)
3100     return((char *) NULL);
3101   return((char *) GetNextKeyInSplayTree((SplayTreeInfo *) image->properties));
3102 }
3103 \f
3104 /*
3105 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3106 %                                                                             %
3107 %                                                                             %
3108 %                                                                             %
3109 %   I n t e r p r e t I m a g e P r o p e r t i e s                           %
3110 %                                                                             %
3111 %                                                                             %
3112 %                                                                             %
3113 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3114 %
3115 %  InterpretImageProperties() replaces any embedded formatting characters with
3116 %  the appropriate image property and returns the interpreted text.
3117 %
3118 %  This searches for and replaces
3119 %     \n \r \%          replaced by newline, return, and percent resp.
3120 %     &lt; &gt; &amp;   replaced by '<', '>', '&' resp.
3121 %     %%                replaced by percent
3122 %
3123 %     %x %[x]       where 'x' is a single letter properity, case sensitive).
3124 %     %[type:name]  where 'type' a is special and known prefix.
3125 %     %[name]       where 'name' is a specifically known attribute, calculated
3126 %                   value, or a per-image property string name, or a per-image
3127 %                   'artifact' (as generated from a global option).
3128 %                   It may contain ':' as long as the prefix is not special.
3129 %
3130 %  Single letter % substitutions will only happen if the character before the
3131 %  percent is NOT a number. But braced substitutions will always be performed.
3132 %  This prevents the typical usage of percent in a interpreted geometry
3133 %  argument from being substituted when the percent is a geometry flag.
3134 %
3135 %  If 'glob-expresions' ('*' or '?' characters) is used for 'name' it may be
3136 %  used as a search pattern to print multiple lines of "name=value\n" pairs of
3137 %  the associacted set of properties.
3138 %
3139 %  The returned string must be freed using DestoryString() by the caller.
3140 %
3141 %  The format of the InterpretImageProperties method is:
3142 %
3143 %      char *InterpretImageProperties(ImageInfo *image_info,
3144 %        Image *image,const char *embed_text,ExceptionInfo *exception)
3145 %
3146 %  A description of each parameter follows:
3147 %
3148 %    o image_info: the image info. (required)
3149 %
3150 %    o image: the image. (optional)
3151 %
3152 %    o embed_text: the address of a character string containing the embedded
3153 %      formatting characters.
3154 %
3155 %    o exception: return any errors or warnings in this structure.
3156 %
3157 */
3158
3159 /* common inline code to expand the interpreted text string */
3160 #define ExtendInterpretText(string_length)  do { \
3161 DisableMSCWarning(4127) \
3162     size_t length=(string_length); \
3163     if ((size_t) (q-interpret_text+length+1) >= extent) \
3164      { extent+=length; \
3165        interpret_text=(char *) ResizeQuantumMemory(interpret_text, \
3166              extent+MaxTextExtent,sizeof(*interpret_text)); \
3167        if (interpret_text == (char *) NULL) \
3168          return((char *)NULL); \
3169        q=interpret_text+strlen(interpret_text); \
3170    } } while (0)  /* no trailing ; */ \
3171 RestoreMSCWarning
3172
3173 /* same but append the given string */
3174 #define AppendString2Text(string)  do { \
3175 DisableMSCWarning(4127) \
3176     size_t length=strlen((string)); \
3177     if ((size_t) (q-interpret_text+length+1) >= extent) \
3178      { extent+=length; \
3179        interpret_text=(char *) ResizeQuantumMemory(interpret_text, \
3180              extent+MaxTextExtent,sizeof(*interpret_text)); \
3181        if (interpret_text == (char *) NULL) \
3182          return((char *)NULL); \
3183        q=interpret_text+strlen(interpret_text); \
3184       } \
3185      (void) CopyMagickString(q,(string),extent); \
3186      q+=length; \
3187    } while (0)  /* no trailing ; */ \
3188 RestoreMSCWarning
3189
3190 /* same but append a 'key' and 'string' pair */
3191 #define AppendKeyValue2Text(key,string)  do { \
3192 DisableMSCWarning(4127) \
3193     size_t length=strlen(key)+strlen(string)+2; \
3194     if ((size_t) (q-interpret_text+length+1) >= extent) \
3195      { extent+=length; \
3196       interpret_text=(char *) ResizeQuantumMemory(interpret_text, \
3197               extent+MaxTextExtent,sizeof(*interpret_text)); \
3198       if (interpret_text == (char *) NULL) \
3199         return((char *)NULL); \
3200       q=interpret_text+strlen(interpret_text); \
3201      } \
3202      q+=FormatLocaleString(q,extent,"%s=%s\n",(key),(string)); \
3203    } while (0)  /* no trailing ; */ \
3204 RestoreMSCWarning
3205
3206 MagickExport char *InterpretImageProperties(ImageInfo *image_info,
3207   Image *image,const char *embed_text,ExceptionInfo *exception)
3208 {
3209   char
3210     *interpret_text;
3211
3212   register char
3213     *q;     /* current position in interpret_text */
3214
3215   register const char
3216     *p;     /* position in embed_text string being expanded */
3217
3218   size_t
3219     extent; /* allocated length of interpret_text */
3220
3221   MagickBooleanType
3222     number;
3223
3224   assert(image == NULL || image->signature == MagickSignature);
3225   assert(image_info == NULL || image_info->signature == MagickSignature);
3226
3227   if (image != (Image *) NULL && IfMagickTrue(image->debug))
3228     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3229   else if( image_info != (ImageInfo *) NULL && IfMagickTrue(image_info->debug))
3230     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s","no-image");
3231
3232   if (embed_text == (const char *) NULL)
3233     return((char *) NULL);
3234   p=embed_text;
3235
3236   if (*p == '\0')
3237     return(ConstantString(""));
3238
3239   /* handle a '@' replace string from file */
3240   if (*p == '@') {
3241      p++;
3242      if (*p != '-' && IfMagickFalse(IsPathAccessible(p)) ) {
3243        (void) ThrowMagickException(exception,GetMagickModule(),
3244            OptionError,"UnableToAccessPath","%s",p);
3245        return((char *) NULL);
3246      }
3247      return(FileToString(p,~0UL,exception));
3248   }
3249
3250   /*
3251     Translate any embedded format characters.
3252   */
3253   interpret_text=AcquireString(embed_text); /* new string with extra space */
3254   extent=MaxTextExtent;                     /* allocated space in string */
3255   number=MagickFalse;                       /* is last char a number? */
3256   for (q=interpret_text; *p!='\0'; number=IsMagickTrue(isdigit(*p)),p++)
3257   {
3258     *q='\0';
3259     ExtendInterpretText(MaxTextExtent);
3260     /*
3261       Look for the various escapes, (and handle other specials)
3262     */
3263     switch (*p) {
3264       case '\\':
3265         switch (*(p+1)) {
3266           case '\0':
3267             continue;
3268           case 'r':       /* convert to RETURN */
3269             *q++='\r';
3270             p++;
3271             continue;
3272           case 'n':       /* convert to NEWLINE */
3273             *q++='\n';
3274             p++;
3275             continue;
3276           case '\n':      /* EOL removal UNIX,MacOSX */
3277             p++;
3278             continue;
3279           case '\r':      /* EOL removal DOS,Windows */
3280             p++;
3281             if (*p == '\n') /* return-newline EOL */
3282               p++;
3283             continue;
3284           default:
3285             p++;
3286             *q++=(*p);
3287             continue;
3288         }
3289         continue; /* never reached! */
3290       case '&':
3291         if (LocaleNCompare("&lt;",p,4) == 0)
3292           *q++='<', p+=3;
3293         else if (LocaleNCompare("&gt;",p,4) == 0)
3294           *q++='>', p+=3;
3295         else if (LocaleNCompare("&amp;",p,5) == 0)
3296           *q++='&', p+=4;
3297         else
3298           *q++=(*p);
3299         continue;
3300       case '%':
3301         break;      /* continue to next set of handlers */
3302       default:
3303         *q++=(*p);  /* any thing else is 'as normal' */
3304         continue;
3305     }
3306     p++; /* advance beyond the percent */
3307
3308     /*
3309       Doubled Percent - or percent at end of string
3310     */
3311     if ( *p == '\0' )
3312        p--;
3313     if ( *p == '%' ) {
3314         *q++='%';
3315         continue;
3316       }
3317
3318     /*
3319       Single letter escapes  %c
3320     */
3321     if ( *p != '[' ) {
3322       const char
3323         *string;
3324
3325       /* But only if not preceeded by a number! */
3326       if ( IfMagickTrue(number) ) {
3327         *q++='%'; /* do NOT substitute the percent */
3328         p--;      /* back up one */
3329         continue;
3330       }
3331       string=GetMagickPropertyLetter(image_info,image,*p, exception);
3332       if (string != (char *) NULL)
3333         {
3334           AppendString2Text(string);
3335           if (image != (Image *) NULL)
3336             (void)DeleteImageArtifact(image,"get-property");
3337           if (image_info != (ImageInfo *) NULL)
3338             (void)DeleteImageOption(image_info,"get-property");
3339           continue;
3340         }
3341       (void) ThrowMagickException(exception,GetMagickModule(),OptionWarning,
3342         "UnknownImageProperty","\"%%%c\"",*p);
3343       continue;
3344     }
3345
3346     /*
3347       Braced Percent Escape  %[...]
3348     */
3349     {
3350       char
3351         pattern[MaxTextExtent];
3352
3353       const char
3354         *key,
3355         *string;
3356
3357       register ssize_t
3358         len;
3359
3360       ssize_t
3361         depth;
3362
3363       /* get the property name framed by the %[...] */
3364       p++;  /* advance p to just inside the opening brace */
3365       depth=1;
3366       if ( *p == ']' ) {
3367         (void) ThrowMagickException(exception,GetMagickModule(),
3368             OptionWarning,"UnknownImageProperty","\"%%[]\"");
3369         break;
3370       }
3371       for (len=0; len<(MaxTextExtent-1L) && (*p != '\0');)
3372       {
3373         /* skip escaped braces within braced pattern */
3374         if ( (*p == '\\') && (*(p+1) != '\0') ) {
3375           pattern[len++]=(*p++);
3376           pattern[len++]=(*p++);
3377           continue;
3378         }
3379         if (*p == '[')
3380           depth++;
3381         if (*p == ']')
3382           depth--;
3383         if (depth <= 0)
3384           break;
3385         pattern[len++]=(*p++);
3386       }
3387       pattern[len]='\0';
3388       /* Check for unmatched final ']' for "%[...]" */
3389       if ( depth != 0 ) {
3390         if (len >= 64) {  /* truncate string for error message */
3391           pattern[61] = '.';
3392           pattern[62] = '.';
3393           pattern[63] = '.';
3394           pattern[64] = '\0';
3395         }
3396         (void) ThrowMagickException(exception,GetMagickModule(),
3397             OptionError,"UnbalancedBraces","\"%%[%s\"",pattern);
3398         interpret_text=DestroyString(interpret_text);
3399         return((char *)NULL);
3400       }
3401
3402       /*
3403         Special Lookup Prefixes %[prefix:...]
3404       */
3405       /* fx - value calculator */
3406       if (LocaleNCompare("fx:",pattern,3) == 0)
3407         {
3408           FxInfo
3409             *fx_info;
3410
3411           double
3412             value;
3413
3414           MagickBooleanType
3415             status;
3416
3417           if (image == (Image *) NULL ) {
3418             (void) ThrowMagickException(exception,GetMagickModule(),
3419                 OptionWarning,"NoImageForProperty","\"%%[%s]\"",pattern);
3420             continue; /* else no image to retrieve artifact */
3421           }
3422           fx_info=AcquireFxInfo(image,pattern+3,exception);
3423           status=FxEvaluateChannelExpression(fx_info,IntensityPixelChannel,0,0,
3424             &value,exception);
3425           fx_info=DestroyFxInfo(fx_info);
3426           if( IfMagickTrue(status) )
3427             {
3428               char
3429                 result[MaxTextExtent];
3430
3431               (void) FormatLocaleString(result,MaxTextExtent,"%.*g",
3432                 GetMagickPrecision(),(double) value);
3433               AppendString2Text(result);
3434             }
3435           continue;
3436         }
3437       /* pixel - color value calculator */
3438       if (LocaleNCompare("pixel:",pattern,6) == 0)
3439         {
3440           FxInfo
3441             *fx_info;
3442
3443           double
3444             value;
3445
3446           MagickStatusType
3447             status;
3448
3449           PixelInfo
3450             pixel;
3451
3452           if (image == (Image *) NULL ) {
3453             (void) ThrowMagickException(exception,GetMagickModule(),
3454                 OptionWarning,"NoImageForProperty","\"%%[%s]\"",pattern);
3455             continue; /* else no image to retrieve artifact */
3456           }
3457           GetPixelInfo(image,&pixel);
3458           fx_info=AcquireFxInfo(image,pattern+6,exception);
3459           status=FxEvaluateChannelExpression(fx_info,RedPixelChannel,0,0,
3460             &value,exception);
3461           pixel.red=(double) QuantumRange*value;
3462           status&=FxEvaluateChannelExpression(fx_info,GreenPixelChannel,0,0,
3463             &value,exception);
3464           pixel.green=(double) QuantumRange*value;
3465           status&=FxEvaluateChannelExpression(fx_info,BluePixelChannel,0,0,
3466             &value,exception);
3467           pixel.blue=(double) QuantumRange*value;
3468           if (image->colorspace == CMYKColorspace)
3469             {
3470               status&=FxEvaluateChannelExpression(fx_info,BlackPixelChannel,0,0,
3471                 &value,exception);
3472               pixel.black=(double) QuantumRange*value;
3473             }
3474           status&=FxEvaluateChannelExpression(fx_info,AlphaPixelChannel,0,0,
3475             &value,exception);
3476           pixel.alpha=(double) QuantumRange*value;
3477           fx_info=DestroyFxInfo(fx_info);
3478           if( IfMagickTrue(status) )
3479             {
3480               char
3481                 name[MaxTextExtent];
3482
3483               (void) QueryColorname(image,&pixel,SVGCompliance,name,
3484                 exception);
3485               AppendString2Text(name);
3486             }
3487           continue;
3488         }
3489       /* option - direct global option lookup (with globbing) */
3490       if (LocaleNCompare("option:",pattern,7) == 0)
3491       {
3492         if (image_info == (ImageInfo *) NULL ) {
3493           (void) ThrowMagickException(exception,GetMagickModule(),
3494               OptionWarning,"NoImageForProperty","\"%%[%s]\"",pattern);
3495           continue; /* else no image to retrieve artifact */
3496         }
3497         if( IfMagickTrue(IsGlob(pattern+7)) )
3498         {
3499           ResetImageOptionIterator(image_info);
3500           while ((key=GetNextImageOption(image_info)) != (const char *) NULL)
3501             if( IfMagickTrue(GlobExpression(key,pattern+7,MagickTrue)) )
3502               {
3503                 string=GetImageOption(image_info,key);
3504                 if (string != (const char *) NULL)
3505                   AppendKeyValue2Text(key,string);
3506                 /* else - assertion failure? key found but no string value! */
3507               }
3508           continue;
3509         }
3510         string=GetImageOption(image_info,pattern+7);
3511         if (string == (char *) NULL)
3512           goto PropertyLookupFailure; /* no artifact of this specifc name */
3513         AppendString2Text(string);
3514         continue;
3515       }
3516       /* artifact - direct image artifact lookup (with glob) */
3517       if (LocaleNCompare("artifact:",pattern,9) == 0)
3518       {
3519         if (image == (Image *) NULL ) {
3520           (void) ThrowMagickException(exception,GetMagickModule(),
3521               OptionWarning,"NoImageForProperty","\"%%[%s]\"",pattern);
3522           continue; /* else no image to retrieve artifact */
3523         }
3524         if( IfMagickTrue(IsGlob(pattern+9)) )
3525         {
3526           ResetImageArtifactIterator(image);
3527           while ((key=GetNextImageArtifact(image)) != (const char *) NULL)
3528             if( IfMagickTrue(GlobExpression(key,pattern+9,MagickTrue)) )
3529               {
3530                 string=GetImageArtifact(image,key);
3531                 if (string != (const char *) NULL)
3532                   AppendKeyValue2Text(key,string);
3533                 /* else - assertion failure? key found but no string value! */
3534               }
3535           continue;
3536         }
3537         string=GetImageArtifact(image,pattern+9);
3538         if (string == (char *) NULL)
3539           goto PropertyLookupFailure; /* no artifact of this specifc name */
3540         AppendString2Text(string);
3541         continue;
3542       }
3543       /* property - direct image property lookup (with glob) */
3544       if (LocaleNCompare("property:",pattern,9) == 0)
3545       {
3546         if (image == (Image *) NULL ) {
3547           (void) ThrowMagickException(exception,GetMagickModule(),
3548               OptionWarning,"NoImageForProperty","\"%%[%s]\"",pattern);
3549           continue; /* else no image to retrieve artifact */
3550         }
3551         if( IfMagickTrue(IsGlob(pattern+9)) )
3552         {
3553           ResetImagePropertyIterator(image);
3554           while ((key=GetNextImageProperty(image)) != (const char *) NULL)
3555             if( IfMagickTrue(GlobExpression(key,pattern,MagickTrue)) )
3556               {
3557                 string=GetImageProperty(image,key,exception);
3558                 if (string != (const char *) NULL)
3559                   AppendKeyValue2Text(key,string);
3560                 /* else - assertion failure? */
3561               }
3562           continue;
3563         }
3564         string=GetImageProperty(image,pattern+9,exception);
3565         if (string == (char *) NULL)
3566           goto PropertyLookupFailure; /* no artifact of this specifc name */
3567         AppendString2Text(string);
3568         continue;
3569       }
3570       /* Properties without special prefix.
3571          This handles attributes, properties, and profiles such as %[exif:...]
3572          Note the profile properties may also include a glob expansion pattern.
3573       */
3574       if ( image != (Image *)NULL )
3575         {
3576           string=GetImageProperty(image,pattern,exception);
3577           if (string != (const char *) NULL)
3578             {
3579               AppendString2Text(string);
3580               if (image != (Image *) NULL)
3581                 (void)DeleteImageArtifact(image,"get-property");
3582               if (image_info != (ImageInfo *) NULL)
3583                 (void)DeleteImageOption(image_info,"get-property");
3584               continue;
3585             }
3586         }
3587       /*
3588         Handle property 'glob' patterns
3589         Such as:  %[*]   %[user:array_??]  %[filename:e*]
3590       */
3591       if( IfMagickTrue(IsGlob(pattern)) )
3592         {
3593           if (image == (Image *) NULL)
3594             continue; /* else no image to retrieve proprty - no list */
3595           ResetImagePropertyIterator(image);
3596           while ((key=GetNextImageProperty(image)) != (const char *) NULL)
3597             if( IfMagickTrue(GlobExpression(key,pattern,MagickTrue)) )
3598               {
3599                 string=GetImageProperty(image,key,exception);
3600                 if (string != (const char *) NULL)
3601                   AppendKeyValue2Text(key,string);
3602                 /* else - assertion failure? */
3603               }
3604           continue;
3605         }
3606       /*
3607         Look for a known property or image attribute
3608         Such as  %[basename]  %[denisty]  %[delay]
3609         Also handles a braced single letter:  %[b] %[G] %[g]
3610       */
3611       string=GetMagickProperty(image_info,image,pattern,exception);
3612       if (string != (const char *) NULL)
3613         {
3614           AppendString2Text(string);
3615           continue;
3616         }
3617       /*
3618         Look for a per-image Artifact
3619         This includes option lookup (FUTURE: interpreted according to image)
3620       */
3621       if (image != (Image *)NULL)
3622         {
3623           string=GetImageArtifact(image,pattern);
3624           if (string != (char *) NULL)
3625             {
3626               AppendString2Text(string);
3627               continue;
3628             }
3629         }
3630       else
3631         /* no image, so direct 'option' lookup (no delayed percent escapes) */
3632         if (image_info != (ImageInfo *) NULL)
3633           {
3634             string=GetImageOption(image_info,pattern);
3635             if (string != (char *) NULL)
3636               {
3637                 AppendString2Text(string);
3638                 continue;
3639               }
3640           }
3641 PropertyLookupFailure:
3642       /*
3643         Failed to find any match anywhere!
3644       */
3645       if (len >= 64) {  /* truncate string for error message */
3646         pattern[61] = '.';
3647         pattern[62] = '.';
3648         pattern[63] = '.';
3649         pattern[64] = '\0';
3650       }
3651       (void) ThrowMagickException(exception,GetMagickModule(),
3652           OptionWarning,"UnknownImageProperty","\"%%[%s]\"",pattern);
3653       /* continue */
3654     } /* Braced Percent Escape */
3655
3656   } /* for each char in 'embed_text' */
3657   *q='\0';
3658   return(interpret_text);
3659 }
3660 \f
3661 /*
3662 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3663 %                                                                             %
3664 %                                                                             %
3665 %                                                                             %
3666 %   R e m o v e I m a g e P r o p e r t y                                     %
3667 %                                                                             %
3668 %                                                                             %
3669 %                                                                             %
3670 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3671 %
3672 %  RemoveImageProperty() removes a property from the image and returns its
3673 %  value.
3674 %
3675 %  In this case the ConstantString() value returned should be freed by the
3676 %  caller when finished.
3677 %
3678 %  The format of the RemoveImageProperty method is:
3679 %
3680 %      char *RemoveImageProperty(Image *image,const char *property)
3681 %
3682 %  A description of each parameter follows:
3683 %
3684 %    o image: the image.
3685 %
3686 %    o property: the image property.
3687 %
3688 */
3689 MagickExport char *RemoveImageProperty(Image *image,
3690   const char *property)
3691 {
3692   char
3693     *value;
3694
3695   assert(image != (Image *) NULL);
3696   assert(image->signature == MagickSignature);
3697   if( IfMagickTrue(image->debug) )
3698     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3699       image->filename);
3700   if (image->properties == (void *) NULL)
3701     return((char *) NULL);
3702   value=(char *) RemoveNodeFromSplayTree((SplayTreeInfo *) image->properties,
3703     property);
3704   return(value);
3705 }
3706 \f
3707 /*
3708 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3709 %                                                                             %
3710 %                                                                             %
3711 %                                                                             %
3712 %   R e s e t I m a g e P r o p e r t y I t e r a t o r                       %
3713 %                                                                             %
3714 %                                                                             %
3715 %                                                                             %
3716 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3717 %
3718 %  ResetImagePropertyIterator() resets the image properties iterator.  Use it
3719 %  in conjunction with GetNextImageProperty() to iterate over all the values
3720 %  associated with an image property.
3721 %
3722 %  The format of the ResetImagePropertyIterator method is:
3723 %
3724 %      ResetImagePropertyIterator(Image *image)
3725 %
3726 %  A description of each parameter follows:
3727 %
3728 %    o image: the image.
3729 %
3730 */
3731 MagickExport void ResetImagePropertyIterator(const Image *image)
3732 {
3733   assert(image != (Image *) NULL);
3734   assert(image->signature == MagickSignature);
3735   if( IfMagickTrue(image->debug) )
3736     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
3737       image->filename);
3738   if (image->properties == (void *) NULL)
3739     return;
3740   ResetSplayTreeIterator((SplayTreeInfo *) image->properties);
3741 }
3742 \f
3743 /*
3744 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3745 %                                                                             %
3746 %                                                                             %
3747 %                                                                             %
3748 %   S e t I m a g e P r o p e r t y                                           %
3749 %                                                                             %
3750 %                                                                             %
3751 %                                                                             %
3752 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3753 %
3754 %  SetImageProperty() saves the given string value either to specific known
3755 %  attribute or to a freeform property string.
3756 %
3757 %  Attempting to set a property that is normally calculated will produce
3758 %  an exception.
3759 %
3760 %  The format of the SetImageProperty method is:
3761 %
3762 %      MagickBooleanType SetImageProperty(Image *image,const char *property,
3763 %        const char *value,ExceptionInfo *exception)
3764 %
3765 %  A description of each parameter follows:
3766 %
3767 %    o image: the image.
3768 %
3769 %    o property: the image property.
3770 %
3771 %    o values: the image property values.
3772 %
3773 %    o exception: return any errors or warnings in this structure.
3774 %
3775 */
3776 MagickExport MagickBooleanType SetImageProperty(Image *image,
3777   const char *property,const char *value,ExceptionInfo *exception)
3778 {
3779   MagickBooleanType
3780     status;
3781
3782   MagickStatusType
3783     flags;
3784
3785   assert(image != (Image *) NULL);
3786   assert(image->signature == MagickSignature);
3787   if( IfMagickTrue(image->debug) )
3788     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
3789   if (image->properties == (void *) NULL)
3790     image->properties=NewSplayTree(CompareSplayTreeString,
3791       RelinquishMagickMemory,RelinquishMagickMemory);  /* create splay-tree */
3792   if (value == (const char *) NULL)
3793     return(DeleteImageProperty(image,property));  /* delete if NULL */
3794   status=MagickTrue;
3795   if (strlen(property) <= 1)
3796     {
3797       /*
3798         Do not 'set' single letter properties - read only shorthand.
3799        */
3800       (void) ThrowMagickException(exception,GetMagickModule(),OptionError,
3801         "SetReadOnlyProperty","`%s'",property);
3802       return(MagickFalse);
3803     }
3804
3805   /* FUTURE: binary chars or quotes in key should produce a error */
3806   /* Set attributes with known names or special prefixes
3807      return result is found, or break to set a free form properity
3808   */
3809   switch (*property)
3810   {
3811 #if 0  /* Percent escape's sets values with this prefix: for later use
3812           Throwing an exception causes this setting to fail */
3813     case '8':
3814     {
3815       if (LocaleNCompare("8bim:",property,5) == 0)
3816         {
3817           (void) ThrowMagickException(exception,GetMagickModule(),
3818                OptionError,"SetReadOnlyProperty","`%s'",property);
3819           return(MagickFalse);
3820         }
3821       break;
3822     }
3823 #endif
3824     case 'B':
3825     case 'b':
3826     {
3827       if (LocaleCompare("background",property) == 0)
3828         {
3829           (void) QueryColorCompliance(value,AllCompliance,
3830                &image->background_color,exception);
3831           /* check for FUTURE: value exception?? */
3832           /* also add user input to splay tree */
3833         }
3834       break; /* not an attribute, add as a property */
3835     }
3836     case 'C':
3837     case 'c':
3838     {
3839       if (LocaleCompare("channels",property) == 0)
3840         {
3841           (void) ThrowMagickException(exception,GetMagickModule(),OptionError,
3842             "SetReadOnlyProperty","`%s'",property);
3843           return(MagickFalse);
3844         }
3845       if (LocaleCompare("colorspace",property) == 0)
3846         {
3847           ssize_t
3848             colorspace;
3849
3850           colorspace=ParseCommandOption(MagickColorspaceOptions,MagickFalse,
3851             value);
3852           if (colorspace < 0)
3853             return(MagickFalse); /* FUTURE: value exception?? */
3854           return(SetImageColorspace(image,(ColorspaceType) colorspace,exception));
3855         }
3856       if (LocaleCompare("compose",property) == 0)
3857         {
3858           ssize_t
3859             compose;
3860
3861           compose=ParseCommandOption(MagickComposeOptions,MagickFalse,value);
3862           if (compose < 0)
3863             return(MagickFalse); /* FUTURE: value exception?? */
3864           image->compose=(CompositeOperator) compose;
3865           return(MagickTrue);
3866         }
3867       if (LocaleCompare("compress",property) == 0)
3868         {
3869           ssize_t
3870             compression;
3871
3872           compression=ParseCommandOption(MagickCompressOptions,MagickFalse,
3873             value);
3874           if (compression < 0)
3875             return(MagickFalse); /* FUTURE: value exception?? */
3876           image->compression=(CompressionType) compression;
3877           return(MagickTrue);
3878         }
3879       if (LocaleCompare("copyright",property) == 0)
3880         {
3881           (void) ThrowMagickException(exception,GetMagickModule(),
3882                OptionError,"SetReadOnlyProperty","`%s'",property);
3883           return(MagickFalse);
3884         }
3885       break; /* not an attribute, add as a property */
3886     }
3887     case 'D':
3888     case 'd':
3889     {
3890       if (LocaleCompare("delay",property) == 0)
3891         {
3892           GeometryInfo
3893             geometry_info;
3894
3895           flags=ParseGeometry(value,&geometry_info);
3896           if ((flags & GreaterValue) != 0)
3897             {
3898               if (image->delay > (size_t) floor(geometry_info.rho+0.5))
3899                 image->delay=(size_t) floor(geometry_info.rho+0.5);
3900             }
3901           else
3902             if ((flags & LessValue) != 0)
3903               {
3904                 if (image->delay < (size_t) floor(geometry_info.rho+0.5))
3905                   image->delay=(ssize_t)
3906                     floor(geometry_info.sigma+0.5);
3907               }
3908             else
3909               image->delay=(size_t) floor(geometry_info.rho+0.5);
3910           if ((flags & SigmaValue) != 0)
3911             image->ticks_per_second=(ssize_t) floor(geometry_info.sigma+0.5);
3912           return(MagickTrue);
3913         }
3914       if (LocaleCompare("delay_units",property) == 0)
3915         {
3916           (void) ThrowMagickException(exception,GetMagickModule(),
3917                OptionError,"SetReadOnlyProperty","`%s'",property);
3918           return(MagickFalse);
3919         }
3920       if (LocaleCompare("density",property) == 0)
3921         {
3922           GeometryInfo
3923             geometry_info;
3924
3925           flags=ParseGeometry(value,&geometry_info);
3926           image->resolution.x=geometry_info.rho;
3927           image->resolution.y=geometry_info.sigma;
3928           if ((flags & SigmaValue) == 0)
3929             image->resolution.y=image->resolution.x;
3930           return(MagickTrue);
3931         }
3932       if (LocaleCompare("depth",property) == 0)
3933         {
3934           image->depth=StringToUnsignedLong(value);
3935           return(MagickTrue);
3936         }
3937       if (LocaleCompare("dispose",property) == 0)
3938         {
3939           ssize_t
3940             dispose;
3941
3942           dispose=ParseCommandOption(MagickDisposeOptions,MagickFalse,value);
3943           if (dispose < 0)
3944             return(MagickFalse); /* FUTURE: value exception?? */
3945           image->dispose=(DisposeType) dispose;
3946           return(MagickTrue);
3947         }
3948       break; /* not an attribute, add as a property */
3949     }
3950 #if 0  /* Percent escape's sets values with this prefix: for later use
3951           Throwing an exception causes this setting to fail */
3952     case 'E':
3953     case 'e':
3954     {
3955       if (LocaleNCompare("exif:",property,5) == 0)
3956         {
3957           (void) ThrowMagickException(exception,GetMagickModule(),
3958                OptionError,"SetReadOnlyProperty","`%s'",property);
3959           return(MagickFalse);
3960         }
3961       break; /* not an attribute, add as a property */
3962     }
3963     case 'F':
3964     case 'f':
3965     {
3966       if (LocaleNCompare("fx:",property,3) == 0)
3967         {
3968           (void) ThrowMagickException(exception,GetMagickModule(),
3969                OptionError,"SetReadOnlyProperty","`%s'",property);
3970           return(MagickFalse);
3971         }
3972       break; /* not an attribute, add as a property */
3973     }
3974 #endif
3975     case 'G':
3976     case 'g':
3977     {
3978       if (LocaleCompare("gamma",property) == 0)
3979         {
3980           image->gamma=StringToDouble(value,(char **) NULL);
3981           return(MagickTrue);
3982         }
3983       if (LocaleCompare("gravity",property) == 0)
3984         {
3985           ssize_t
3986             gravity;
3987
3988           gravity=ParseCommandOption(MagickGravityOptions,MagickFalse,value);
3989           if (gravity < 0)
3990             return(MagickFalse); /* FUTURE: value exception?? */
3991           image->gravity=(GravityType) gravity;
3992           return(MagickTrue);
3993         }
3994       break; /* not an attribute, add as a property */
3995     }
3996     case 'H':
3997     case 'h':
3998     {
3999       if (LocaleCompare("height",property) == 0)
4000         {
4001           (void) ThrowMagickException(exception,GetMagickModule(),
4002                OptionError,"SetReadOnlyProperty","`%s'",property);
4003           return(MagickFalse);
4004         }
4005       break; /* not an attribute, add as a property */
4006     }
4007     case 'I':
4008     case 'i':
4009     {
4010       if (LocaleCompare("intensity",property) == 0)
4011         {
4012           ssize_t
4013             intensity;
4014
4015           intensity=ParseCommandOption(MagickIntentOptions,MagickFalse,
4016             value);
4017           if (intensity < 0)
4018             return(MagickFalse);
4019           image->intensity=(PixelIntensityMethod) intensity;
4020           return(MagickTrue);
4021         }
4022       if (LocaleCompare("intent",property) == 0)
4023         {
4024           ssize_t
4025             rendering_intent;
4026
4027           rendering_intent=ParseCommandOption(MagickIntentOptions,MagickFalse,
4028             value);
4029           if (rendering_intent < 0)
4030             return(MagickFalse); /* FUTURE: value exception?? */
4031           image->rendering_intent=(RenderingIntent) rendering_intent;
4032           return(MagickTrue);
4033         }
4034       if (LocaleCompare("interpolate",property) == 0)
4035         {
4036           ssize_t
4037             interpolate;
4038
4039           interpolate=ParseCommandOption(MagickInterpolateOptions,MagickFalse,
4040             value);
4041           if (interpolate < 0)
4042             return(MagickFalse); /* FUTURE: value exception?? */
4043           image->interpolate=(PixelInterpolateMethod) interpolate;
4044           return(MagickTrue);
4045         }
4046 #if 0  /* Percent escape's sets values with this prefix: for later use
4047           Throwing an exception causes this setting to fail */
4048       if (LocaleNCompare("iptc:",property,5) == 0)
4049         {
4050           (void) ThrowMagickException(exception,GetMagickModule(),
4051                OptionError,"SetReadOnlyProperty","`%s'",property);
4052           return(MagickFalse);
4053         }
4054 #endif
4055       break; /* not an attribute, add as a property */
4056     }
4057     case 'K':
4058     case 'k':
4059       if (LocaleCompare("kurtosis",property) == 0)
4060         {
4061           (void) ThrowMagickException(exception,GetMagickModule(),
4062                OptionError,"SetReadOnlyProperty","`%s'",property);
4063           return(MagickFalse);
4064         }
4065       break; /* not an attribute, add as a property */
4066     case 'L':
4067     case 'l':
4068     {
4069       if (LocaleCompare("loop",property) == 0)
4070         {
4071           image->iterations=StringToUnsignedLong(value);
4072           return(MagickTrue);
4073         }
4074       break; /* not an attribute, add as a property */
4075     }
4076     case 'M':
4077     case 'm':
4078       if ( (LocaleCompare("magick",property) == 0) ||
4079            (LocaleCompare("max",property) == 0) ||
4080            (LocaleCompare("mean",property) == 0) ||
4081            (LocaleCompare("min",property) == 0) ||
4082            (LocaleCompare("min",property) == 0) )
4083         {
4084           (void) ThrowMagickException(exception,GetMagickModule(),OptionError,
4085              "SetReadOnlyProperty","`%s'",property);
4086           return(MagickFalse);
4087         }
4088       break; /* not an attribute, add as a property */
4089     case 'O':
4090     case 'o':
4091       if (LocaleCompare("opaque",property) == 0)
4092         {
4093           (void) ThrowMagickException(exception,GetMagickModule(),
4094                OptionError,"SetReadOnlyProperty","`%s'",property);
4095           return(MagickFalse);
4096         }
4097       break; /* not an attribute, add as a property */
4098     case 'P':
4099     case 'p':
4100     {
4101       if (LocaleCompare("page",property) == 0)
4102         {
4103           char
4104             *geometry;
4105
4106           geometry=GetPageGeometry(value);
4107           flags=ParseAbsoluteGeometry(geometry,&image->page);
4108           geometry=DestroyString(geometry);
4109           return(MagickTrue);
4110         }
4111 #if 0  /* Percent escape's sets values with this prefix: for later use
4112           Throwing an exception causes this setting to fail */
4113       if (LocaleNCompare("pixel:",property,6) == 0)
4114         {
4115           (void) ThrowMagickException(exception,GetMagickModule(),
4116                OptionError,"SetReadOnlyProperty","`%s'",property);
4117           return(MagickFalse);
4118         }
4119 #endif
4120       if (LocaleCompare("profile",property) == 0)
4121         {
4122           ImageInfo
4123             *image_info;
4124
4125           StringInfo
4126             *profile;
4127
4128           image_info=AcquireImageInfo();
4129           (void) CopyMagickString(image_info->filename,value,MaxTextExtent);
4130           (void) SetImageInfo(image_info,1,exception);
4131           profile=FileToStringInfo(image_info->filename,~0UL,exception);
4132           if (profile != (StringInfo *) NULL)
4133             status=SetImageProfile(image,image_info->magick,profile,exception);
4134           image_info=DestroyImageInfo(image_info);
4135           return(MagickTrue);
4136         }
4137       break; /* not an attribute, add as a property */
4138     }
4139     case 'R':
4140     case 'r':
4141     {
4142       if (LocaleCompare("rendering-intent",property) == 0)
4143         {
4144           ssize_t
4145             rendering_intent;
4146
4147           rendering_intent=ParseCommandOption(MagickIntentOptions,MagickFalse,
4148             value);
4149           if (rendering_intent < 0)
4150             return(MagickFalse); /* FUTURE: value exception?? */
4151           image->rendering_intent=(RenderingIntent) rendering_intent;
4152           return(MagickTrue);
4153         }
4154       break; /* not an attribute, add as a property */
4155     }
4156     case 'S':
4157     case 's':
4158       if ( (LocaleCompare("size",property) == 0) ||
4159            (LocaleCompare("skewness",property) == 0) ||
4160            (LocaleCompare("scenes",property) == 0) ||
4161            (LocaleCompare("standard-deviation",property) == 0) )
4162         {
4163           (void) ThrowMagickException(exception,GetMagickModule(),
4164                OptionError,"SetReadOnlyProperty","`%s'",property);
4165           return(MagickFalse);
4166         }
4167       break; /* not an attribute, add as a property */
4168     case 'T':
4169     case 't':
4170     {
4171       if (LocaleCompare("tile-offset",property) == 0)
4172         {
4173           char
4174             *geometry;
4175
4176           geometry=GetPageGeometry(value);
4177           flags=ParseAbsoluteGeometry(geometry,&image->tile_offset);
4178           geometry=DestroyString(geometry);
4179           return(MagickTrue);
4180         }
4181       break; /* not an attribute, add as a property */
4182     }
4183     case 'U':
4184     case 'u':
4185     {
4186       if (LocaleCompare("units",property) == 0)
4187         {
4188           ssize_t
4189             units;
4190
4191           units=ParseCommandOption(MagickResolutionOptions,MagickFalse,value);
4192           if (units < 0)
4193             return(MagickFalse); /* FUTURE: value exception?? */
4194           image->units=(ResolutionType) units;
4195           return(MagickTrue);
4196         }
4197       break; /* not an attribute, add as a property */
4198     }
4199     case 'V':
4200     case 'v':
4201     {
4202       if (LocaleCompare("version",property) == 0)
4203         {
4204           (void) ThrowMagickException(exception,GetMagickModule(),
4205                OptionError,"SetReadOnlyProperty","`%s'",property);
4206           return(MagickFalse);
4207         }
4208       break; /* not an attribute, add as a property */
4209     }
4210     case 'W':
4211     case 'w':
4212     {
4213       if (LocaleCompare("width",property) == 0)
4214         {
4215           (void) ThrowMagickException(exception,GetMagickModule(),
4216                OptionError,"SetReadOnlyProperty","`%s'",property);
4217           return(MagickFalse);
4218         }
4219       break; /* not an attribute, add as a property */
4220     }
4221 #if 0  /* Percent escape's sets values with this prefix: for later use
4222           Throwing an exception causes this setting to fail */
4223     case 'X':
4224     case 'x':
4225     {
4226       if (LocaleNCompare("xmp:",property,4) == 0)
4227         {
4228           (void) ThrowMagickException(exception,GetMagickModule(),
4229                OptionError,"SetReadOnlyProperty","`%s'",property);
4230           return(MagickFalse);
4231         }
4232       break; /* not an attribute, add as a property */
4233     }
4234 #endif
4235   }
4236   /* Default: not an attribute, add as a property */
4237   status=AddValueToSplayTree((SplayTreeInfo *) image->properties,
4238     ConstantString(property),ConstantString(value));
4239   /* FUTURE: error if status is bad? */
4240   return(status);
4241 }