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conjure.c
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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% CCCC OOO N N JJJJJ U U RRRR EEEEE %
% C O O NN N J U U R R E %
% C O O N N N J U U RRRR EEE %
% C O O N NN J J U U R R E %
% CCCC OOO N N JJJ UUU R R EEEEE %
% %
% %
% Interpret Magick Scripting Language. %
% %
% Software Design %
% Cristy %
% December 2001 %
% %
% %
% Copyright 1999-2020 ImageMagick Studio LLC, a non-profit organization %
% dedicated to making software imaging solutions freely available. %
% %
% You may not use this file except in compliance with the License. You may %
% obtain a copy of the License at %
% %
% https://imagemagick.org/script/license.php %
% %
% Unless required by applicable law or agreed to in writing, software %
% distributed under the License is distributed on an "AS IS" BASIS, %
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
% See the License for the specific language governing permissions and %
% limitations under the License. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% The conjure program gives you the ability to perform custom image processing
% tasks from a script written in the Magick Scripting Language (MSL). MSL is
% XML-based and consists of action statements with attributes. Actions include
% reading an image, processing an image, getting attributes from an image,
% writing an image, and more. An attribute is a key/value pair that modifies
% the behavior of an action.
%
*/
/*
Include declarations.
*/
#include "MagickWand/studio.h"
#include "MagickWand/MagickWand.h"
#include "MagickWand/mogrify-private.h"
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ C o n j u r e I m a g e C o m m a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ConjureImageCommand() describes the format and characteristics of one or
% more image files. It will also report if an image is incomplete or corrupt.
% The information displayed includes the scene number, the file name, the
% width and height of the image, whether the image is colormapped or not,
% the number of colors in the image, the number of bytes in the image, the
% format of the image (JPEG, PNM, etc.), and finally the number of seconds
% it took to read and process the image.
%
% The format of the ConjureImageCommand method is:
%
% MagickBooleanType ConjureImageCommand(ImageInfo *image_info,int argc,
% char **argv,char **metadata,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image_info: the image info.
%
% o argc: the number of elements in the argument vector.
%
% o argv: A text array containing the command line arguments.
%
% o metadata: any metadata is returned here.
%
% o exception: return any errors or warnings in this structure.
%
*/
static MagickBooleanType ConjureUsage(void)
{
static const char
miscellaneous[] =
" -debug events display copious debugging information\n"
" -help print program options\n"
" -list type print a list of supported option arguments\n"
" -log format format of debugging information\n"
" -version print version information",
settings[] =
" -monitor monitor progress\n"
" -quiet suppress all warning messages\n"
" -regard-warnings pay attention to warning messages\n"
" -seed value seed a new sequence of pseudo-random numbers\n"
" -verbose print detailed information about the image";
ListMagickVersion(stdout);
(void) printf("Usage: %s [options ...] file [ [options ...] file ...]\n",
GetClientName());
(void) printf("\nImage Settings:\n");
(void) puts(settings);
(void) printf("\nMiscellaneous Options:\n");
(void) puts(miscellaneous);
(void) printf("\nIn addition, define any key value pairs required by "
"your script. For\nexample,\n\n");
(void) printf(" conjure -size 100x100 -color blue -foo bar script.msl\n");
return(MagickFalse);
}
WandExport MagickBooleanType ConjureImageCommand(ImageInfo *image_info,
int argc,char **argv,char **wand_unused(metadata),ExceptionInfo *exception)
{
#define DestroyConjure() \
{ \
image=DestroyImageList(image); \
for (i=0; i < (ssize_t) argc; i++) \
argv[i]=DestroyString(argv[i]); \
argv=(char **) RelinquishMagickMemory(argv); \
}
#define ThrowConjureException(asperity,tag,option) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),asperity,tag,"`%s'", \
option); \
DestroyConjure(); \
return(MagickFalse); \
}
#define ThrowConjureInvalidArgumentException(option,argument) \
{ \
(void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
"InvalidArgument","'%s': %s",option,argument); \
DestroyConjure(); \
return(MagickFalse); \
}
char
filename[MagickPathExtent],
*option;
Image
*image;
MagickStatusType
status;
register ssize_t
i;
ssize_t
number_images;
wand_unreferenced(metadata);
/*
Set defaults.
*/
assert(image_info != (ImageInfo *) NULL);
assert(image_info->signature == MagickCoreSignature);
if (image_info->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
assert(exception != (ExceptionInfo *) NULL);
if (argc < 2)
return(ConjureUsage());
image=NewImageList();
number_images=0;
option=(char *) NULL;
/*
Conjure an image.
*/
ReadCommandlLine(argc,&argv);
status=ExpandFilenames(&argc,&argv);
if (status == MagickFalse)
ThrowConjureException(ResourceLimitError,"MemoryAllocationFailed",
GetExceptionMessage(errno));
for (i=1; i < (ssize_t) argc; i++)
{
option=argv[i];
if (IsCommandOption(option) != MagickFalse)
{
if (LocaleCompare("concurrent",option+1) == 0)
break;
if (LocaleCompare("debug",option+1) == 0)
{
ssize_t
event;
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowConjureException(OptionError,"MissingArgument",option);
event=ParseCommandOption(MagickLogEventOptions,MagickFalse,argv[i]);
if (event < 0)
ThrowConjureException(OptionError,"UnrecognizedEventType",
argv[i]);
(void) SetLogEventMask(argv[i]);
continue;
}
if (LocaleCompare("duration",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowConjureException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowConjureInvalidArgumentException(option,argv[i]);
continue;
}
if ((LocaleCompare("help",option+1) == 0) ||
(LocaleCompare("-help",option+1) == 0))
{
if (*option == '-')
return(ConjureUsage());
continue;
}
if (LocaleCompare("log",option+1) == 0)
{
if (*option == '-')
{
i++;
if (i == (ssize_t) argc)
ThrowConjureException(OptionError,"MissingLogFormat",option);
(void) SetLogFormat(argv[i]);
}
continue;
}
if (LocaleCompare("monitor",option+1) == 0)
continue;
if (LocaleCompare("quiet",option+1) == 0)
continue;
if (LocaleCompare("regard-warnings",option+1) == 0)
break;
if (LocaleCompare("seed",option+1) == 0)
{
if (*option == '+')
break;
i++;
if (i == (ssize_t) argc)
ThrowConjureException(OptionError,"MissingArgument",option);
if (IsGeometry(argv[i]) == MagickFalse)
ThrowConjureInvalidArgumentException(option,argv[i]);
break;
}
if (LocaleCompare("verbose",option+1) == 0)
{
image_info->verbose=(*option == '-') ? MagickTrue : MagickFalse;
continue;
}
if ((LocaleCompare("version",option+1) == 0) ||
(LocaleCompare("-version",option+1) == 0))
{
ListMagickVersion(stdout);
return(MagickTrue);
}
/*
Persist key/value pair.
*/
(void) DeleteImageOption(image_info,option+1);
status=SetImageOption(image_info,option+1,argv[i+1]);
if (status == MagickFalse)
ThrowConjureException(ImageError,"UnableToPersistKey",option);
i++;
continue;
}
/*
Interpret MSL script.
*/
(void) DeleteImageOption(image_info,"filename");
status=SetImageOption(image_info,"filename",argv[i]);
if (status == MagickFalse)
ThrowConjureException(ImageError,"UnableToPersistKey",argv[i]);
(void) FormatLocaleString(filename,MagickPathExtent,"%s",argv[i]);
image=ReadImages(image_info,filename,exception);
CatchException(exception);
if (image != (Image *) NULL)
image=DestroyImageList(image);
status=image != (Image *) NULL ? MagickTrue : MagickFalse;
number_images++;
}
if (i != (ssize_t) argc)
ThrowConjureException(OptionError,"MissingAnImageFilename",argv[i]);
if (number_images == 0)
ThrowConjureException(OptionError,"MissingAnImageFilename",argv[argc-1]);
if (image != (Image *) NULL)
image=DestroyImageList(image);
for (i=0; i < (ssize_t) argc; i++)
argv[i]=DestroyString(argv[i]);
argv=(char **) RelinquishMagickMemory(argv);
return(status != 0 ? MagickTrue : MagickFalse);
}