自学教程：C++ ConcatenateMagickString函数代码示例

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %+   C L I L o g E v e n t                                                     %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% CLILogEvent() is a wrapper around LogMagickEvent(), adding to it the% location of the option that is (about) to be executed.%*/WandExport MagickBooleanType CLILogEvent(MagickCLI *cli_wand,     const LogEventType type,const char *module,const char *function,     const size_t line,const char *format,...){  char    new_format[MaxTextExtent];  MagickBooleanType    status;  va_list    operands;  /* HACK - prepend the CLI location to format string.     The better way would be add more arguments to to the 'va' oparands     list, but that does not appear to be possible! So we do some     pre-formating of the location info here.  */  (void) FormatLocaleString(new_format,MaxTextExtent,cli_wand->location,       cli_wand->filename, cli_wand->line, cli_wand->column);  (void) ConcatenateMagickString(new_format," ",MaxTextExtent);  (void) ConcatenateMagickString(new_format,format,MaxTextExtent);  va_start(operands,format);  status=LogMagickEventList(type,module,function,line,new_format,operands);  va_end(operands);  return(status == MagickFalse ? 0 : 1);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   M a g i c k G e t E x c e p t i o n                                       %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  MagickGetException() returns the severity, reason, and description of any%  error that occurs when using other methods in this API.%%  The format of the MagickGetException method is:%%      char *MagickGetException(const MagickWand *wand,ExceptionType *severity)%%  A description of each parameter follows:%%    o wand: the magick wand.%%    o severity: the severity of the error is returned here.%*/WandExport char *MagickGetException(const MagickWand *wand,  ExceptionType *severity){  char    *description;  assert(wand != (const MagickWand *) NULL);  assert(wand->signature == WandSignature);  if (wand->debug != MagickFalse)    (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);  assert(severity != (ExceptionType *) NULL);  *severity=wand->exception->severity;  description=(char *) AcquireQuantumMemory(2UL*MaxTextExtent,    sizeof(*description));  if (description == (char *) NULL)    {      (void) ThrowMagickException(wand->exception,GetMagickModule(),WandError,        "MemoryAllocationFailed","`%s'",wand->name);      return((char *) NULL);    }  *description='/0';  if (wand->exception->reason != (char *) NULL)    (void) CopyMagickString(description,GetLocaleExceptionMessage(      wand->exception->severity,wand->exception->reason),MaxTextExtent);  if (wand->exception->description != (char *) NULL)    {      (void) ConcatenateMagickString(description," (",MaxTextExtent);      (void) ConcatenateMagickString(description,GetLocaleExceptionMessage(        wand->exception->severity,wand->exception->description),MaxTextExtent);      (void) ConcatenateMagickString(description,")",MaxTextExtent);    }  return(description);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   G e t I m a g e V i e w E x c e p t i o n                                 %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  GetImageViewException() returns the severity, reason, and description of any%  error that occurs when utilizing a image view.%%  The format of the GetImageViewException method is:%%      char *GetImageViewException(const PixelImage *image_view,%        ExceptionType *severity)%%  A description of each parameter follows:%%    o image_view: the pixel image_view.%%    o severity: the severity of the error is returned here.%*/MagickExport char *GetImageViewException(const ImageView *image_view,  ExceptionType *severity){  char    *description;  assert(image_view != (const ImageView *) NULL);  assert(image_view->signature == MagickSignature);  assert(severity != (ExceptionType *) NULL);  *severity=image_view->exception->severity;  description=(char *) AcquireQuantumMemory(2UL*MaxTextExtent,    sizeof(*description));  if (description == (char *) NULL)    ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");  *description='/0';  if (image_view->exception->reason != (char *) NULL)    (void) CopyMagickString(description,GetLocaleExceptionMessage(      image_view->exception->severity,image_view->exception->reason),        MaxTextExtent);  if (image_view->exception->description != (char *) NULL)    {      (void) ConcatenateMagickString(description," (",MaxTextExtent);      (void) ConcatenateMagickString(description,GetLocaleExceptionMessage(        image_view->exception->severity,image_view->exception->description),        MaxTextExtent);      (void) ConcatenateMagickString(description,")",MaxTextExtent);    }  return(description);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   P i x e l G e t I t e r a t o r E x c e p t i o n                         %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  PixelGetIteratorException() returns the severity, reason, and description of%  any error that occurs when using other methods in this API.%%  The format of the PixelGetIteratorException method is:%%      char *PixelGetIteratorException(const PixelIterator *iterator,%        ExceptionType *severity)%%  A description of each parameter follows:%%    o iterator: the pixel iterator.%%    o severity: the severity of the error is returned here.%*/WandExport char *PixelGetIteratorException(const PixelIterator *iterator,  ExceptionType *severity){  char    *description;  assert(iterator != (const PixelIterator *) NULL);  assert(iterator->signature == MagickWandSignature);  if (iterator->debug != MagickFalse)    (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",iterator->name);  assert(severity != (ExceptionType *) NULL);  *severity=iterator->exception->severity;  description=(char *) AcquireQuantumMemory(2UL*MagickPathExtent,    sizeof(*description));  if (description == (char *) NULL)    ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",      iterator->name);  *description='/0';  if (iterator->exception->reason != (char *) NULL)    (void) CopyMagickString(description,GetLocaleExceptionMessage(      iterator->exception->severity,iterator->exception->reason),MagickPathExtent);  if (iterator->exception->description != (char *) NULL)    {      (void) ConcatenateMagickString(description," (",MagickPathExtent);      (void) ConcatenateMagickString(description,GetLocaleExceptionMessage(        iterator->exception->severity,iterator->exception->description),        MagickPathExtent);      (void) ConcatenateMagickString(description,")",MagickPathExtent);    }  return(description);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %+   C L I T h r o w E x c e p t i o n                                         %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% CLIThrowException() is a wrapper around ThrowMagickException(), adding to% it the location of the option that caused the exception to occur.*/WandExport MagickBooleanType CLIThrowException(MagickCLI *cli_wand,       const char *module,const char *function,const size_t line,       const ExceptionType severity,const char *tag,const char *format,...){  char    new_format[MaxTextExtent];  size_t    len;  MagickBooleanType    status;  va_list    operands;  /* HACK - append location to format string.     The better way would be add more arguments to to the 'va' oparands     list, but that does not appear to be possible! So we do some     pre-formating of the location info here.  */  (void) CopyMagickString(new_format,format,MaxTextExtent);  (void) ConcatenateMagickString(new_format," ",MaxTextExtent);  len=strlen(new_format);  (void) FormatLocaleString(new_format+len,MaxTextExtent-len,cli_wand->location,       cli_wand->filename, cli_wand->line, cli_wand->column);  va_start(operands,format);  status=ThrowMagickExceptionList(cli_wand->wand.exception,              module,function,line,              severity,tag,new_format,operands);  va_end(operands);  return(status == MagickFalse ? 0 : 1);}

MagickExport MagickBooleanType ThrowMagickExceptionList(  ExceptionInfo *exception,const char *module,const char *function,  const size_t line,const ExceptionType severity,const char *tag,  const char *format,va_list operands){  char    message[MaxTextExtent],    path[MaxTextExtent],    reason[MaxTextExtent];  const char    *locale,    *type;  int    n;  MagickBooleanType    status;  size_t    length;  assert(exception != (ExceptionInfo *) NULL);  assert(exception->signature == MagickSignature);  locale=GetLocaleExceptionMessage(severity,tag);  (void) CopyMagickString(reason,locale,MaxTextExtent);  (void) ConcatenateMagickString(reason," ",MaxTextExtent);  length=strlen(reason);#if defined(MAGICKCORE_HAVE_VSNPRINTF)  n=vsnprintf(reason+length,MaxTextExtent-length,format,operands);#else  n=vsprintf(reason+length,format,operands);#endif  if (n < 0)    reason[MaxTextExtent-1]='/0';  status=LogMagickEvent(ExceptionEvent,module,function,line,"%s",reason);  GetPathComponent(module,TailPath,path);  type="undefined";  if ((severity >= WarningException) && (severity < ErrorException))    type="warning";  if ((severity >= ErrorException) && (severity < FatalErrorException))    type="error";  if (severity >= FatalErrorException)    type="fatal";  (void) FormatLocaleString(message,MaxTextExtent,"%s @ %s/%s/%s/%.20g",reason,    type,path,function,(double) line);  (void) ThrowException(exception,severity,message,(char *) NULL);  return(status);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %+   L o a d T y p e C a c h e                                                 %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  LoadTypeCache() loads the type configurations which provides a mapping%  between type attributes and a type name.%%  The format of the LoadTypeCache method is:%%      MagickBooleanType LoadTypeCache(SplayTreeInfo *type_cache,%        const char *xml,const char *filename,const size_t depth,%        ExceptionInfo *exception)%%  A description of each parameter follows:%%    o xml:  The type list in XML format.%%    o filename:  The type list filename.%%    o depth: depth of <include /> statements.%%    o exception: return any errors or warnings in this structure.%*/static inline MagickBooleanType SetTypeNodePath(const char *filename,  char *font_path,const char *token,char **target){  char   *path;  path=ConstantString(token);#if defined(MAGICKCORE_WINDOWS_SUPPORT)  if (strchr(path,'@') != (char *) NULL)    SubstituteString(&path,"@[email
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