自学教程：C++ FormatLocaleFile函数代码示例

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%  L i s t C o n f i g u r e I n f o                                          %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  ListConfigureInfo() lists the configure info to a file.%%  The format of the ListConfigureInfo method is:%%      MagickBooleanType ListConfigureInfo(FILE *file,ExceptionInfo *exception)%%  A description of each parameter follows.%%    o file:  An pointer to a FILE.%%    o exception: return any errors or warnings in this structure.%*/MagickExport MagickBooleanType ListConfigureInfo(FILE *file,  ExceptionInfo *exception){  const char    *name,    *path,    *value;  const ConfigureInfo    **configure_info;  register ssize_t    i;  size_t    number_options;  ssize_t    j;  if (file == (const FILE *) NULL)    file=stdout;  configure_info=GetConfigureInfoList("*",&number_options,exception);  if (configure_info == (const ConfigureInfo **) NULL)    return(MagickFalse);  path=(const char *) NULL;  for (i=0; i < (ssize_t) number_options; i++)  {    if (configure_info[i]->stealth != MagickFalse)      continue;    if ((path == (const char *) NULL) ||        (LocaleCompare(path,configure_info[i]->path) != 0))      {        if (configure_info[i]->path != (char *) NULL)          (void) FormatLocaleFile(file,"/nPath: %s/n/n",            configure_info[i]->path);        (void) FormatLocaleFile(file,"Name           Value/n");        (void) FormatLocaleFile(file,          "-------------------------------------------------"          "------------------------------/n");      }    path=configure_info[i]->path;    name="unknown";    if (configure_info[i]->name != (char *) NULL)      name=configure_info[i]->name;    (void) FormatLocaleFile(file,"%s",name);    for (j=(ssize_t) strlen(name); j <= 13; j++)      (void) FormatLocaleFile(file," ");    (void) FormatLocaleFile(file," ");    value="unknown";    if (configure_info[i]->value != (char *) NULL)      value=configure_info[i]->value;    (void) FormatLocaleFile(file,"%s",value);    (void) FormatLocaleFile(file,"/n");  }  (void) fflush(file);  configure_info=(const ConfigureInfo **) RelinquishMagickMemory((void *)    configure_info);  return(MagickTrue);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %+   D e f a u l t F a t a l E r r o r H a n d l e r                           %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  DefaultFatalErrorHandler() displays an error reason and then terminates the%  program.%%  The format of the DefaultFatalErrorHandler method is:%%      void MagickFatalError(const ExceptionType severity,const char *reason,%        const char *description)%%  A description of each parameter follows:%%    o severity: Specifies the numeric error category.%%    o reason: Specifies the reason to display before terminating the%      program.%%    o description: Specifies any description to the reason.%*/static void DefaultFatalErrorHandler(  const ExceptionType magick_unused(severity),  const char *reason,const char *description){  if (reason == (char *) NULL)    return;  (void) FormatLocaleFile(stderr,"%s: %s",GetClientName(),reason);  if (description != (char *) NULL)    (void) FormatLocaleFile(stderr," (%s)",description);  (void) FormatLocaleFile(stderr,"./n");  (void) fflush(stderr);  MagickCoreTerminus();  exit(1);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   L o c k S e m a p h o r e I n f o                                         %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  LockSemaphoreInfo() locks a semaphore.%%  The format of the LockSemaphoreInfo method is:%%      void LockSemaphoreInfo(SemaphoreInfo *semaphore_info)%%  A description of each parameter follows:%%    o semaphore_info: Specifies a pointer to an SemaphoreInfo structure.%*/MagickExport void LockSemaphoreInfo(SemaphoreInfo *semaphore_info){  assert(semaphore_info != (SemaphoreInfo *) NULL);  assert(semaphore_info->signature == MagickSignature);#if defined(MAGICKCORE_THREAD_SUPPORT)  {    int      status;    status=pthread_mutex_lock(&semaphore_info->mutex);    if (status != 0)      {        errno=status;        ThrowFatalException(ResourceLimitFatalError,"UnableToLockSemaphore");      }  }#elif defined(MAGICKCORE_HAVE_WINTHREADS)  EnterCriticalSection(&semaphore_info->mutex);#endif#if defined(MAGICKCORE_DEBUG)  if ((semaphore_info->reference_count > 0) &&      (IsMagickThreadEqual(semaphore_info->id) != MagickFalse))    {      (void) FormatLocaleFile(stderr,"Warning: unexpected recursive lock!/n");      (void) fflush(stderr);    }#endif  semaphore_info->id=GetMagickThreadId();  semaphore_info->reference_count++;}

static void OutputArtifacts(Image *image){  const char    *artifact,    *value;  (void) FormatLocaleFile(stdout,"  Image Artifacts:/n");  ResetImageArtifactIterator(image);  while ((artifact=GetNextImageArtifact(image)) != (const char *) NULL ) {    (void) FormatLocaleFile(stdout,"    %s: ",artifact);    value=GetImageArtifact(image,artifact);    if (value != (const char *) NULL)      (void) FormatLocaleFile(stdout,"%s/n",value);  }  ResetImageArtifactIterator(image);}

/*  Temporary Debugging Information  FUTURE: these should be able to be printed out using 'percent escapes'  Actually 'Properities' can already be output with  "%[*]"*/static void OutputOptions(ImageInfo *image_info){  const char    *option,    *value;  (void) FormatLocaleFile(stdout,"  Global Options:/n");  ResetImageOptionIterator(image_info);  while ((option=GetNextImageOption(image_info)) != (const char *) NULL ) {    (void) FormatLocaleFile(stdout,"    %s: ",option);    value=GetImageOption(image_info,option);    if (value != (const char *) NULL)      (void) FormatLocaleFile(stdout,"%s/n",value);  }  ResetImageOptionIterator(image_info);}

/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                                             %%                                                                             %%                                                                             %%   U n l o c k S e m a p h o r e I n f o                                     %%                                                                             %%                                                                             %%                                                                             %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  UnlockSemaphoreInfo() unlocks a semaphore.%%  The format of the UnlockSemaphoreInfo method is:%%      void UnlockSemaphoreInfo(SemaphoreInfo *semaphore_info)%%  A description of each parameter follows:%%    o semaphore_info: Specifies a pointer to an SemaphoreInfo structure.%*/MagickExport void UnlockSemaphoreInfo(SemaphoreInfo *semaphore_info){  assert(semaphore_info != (SemaphoreInfo *) NULL);  assert(semaphore_info->signature == MagickSignature);#if defined(MAGICKCORE_DEBUG)  assert(IsMagickThreadEqual(semaphore_info->id) != MagickFalse);  if (semaphore_info->reference_count == 0)    {      (void) FormatLocaleFile(stderr,        "Warning: semaphore lock already unlocked!/n");      (void) fflush(stderr);      return;    }  semaphore_info->reference_count--;#endif#if defined(MAGICKCORE_THREAD_SUPPORT)  {    int      status;    status=pthread_mutex_unlock(&semaphore_info->mutex);    if (status != 0)      {        errno=status;        ThrowFatalException(ResourceLimitFatalError,"UnableToUnlockSemaphore");      }  }#elif defined(MAGICKCORE_HAVE_WINTHREADS)  LeaveCriticalSection(&semaphore_info->mutex);#endif}

static ssize_t PrintChannelFeatures(FILE *file,const PixelChannel channel,  const char *name,const ChannelFeatures *channel_features){#define PrintFeature(feature) /  GetMagickPrecision(),(feature)[0], /  GetMagickPrecision(),(feature)[1], /  GetMagickPrecision(),(feature)[2], /  GetMagickPrecision(),(feature)[3], /  GetMagickPrecision(),((feature)[0]+(feature)[1]+(feature)[2]+(feature)[3])/4.0 /#define FeaturesFormat "    %s:/n" /  "      Angular Second Moment:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Contrast:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Correlation:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Sum of Squares: Variance:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Inverse Difference Moment:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Sum Average:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Sum Variance:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Sum Entropy:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Entropy:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Difference Variance:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Difference Entropy:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Information Measure of Correlation 1:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Information Measure of Correlation 2:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n" /  "      Maximum Correlation Coefficient:/n" /  "        %.*g, %.*g, %.*g, %.*g, %.*g/n"  ssize_t    n;  n=FormatLocaleFile(file,FeaturesFormat,name,    PrintFeature(channel_features[channel].angular_second_moment),    PrintFeature(channel_features[channel].contrast),    PrintFeature(channel_features[channel].correlation),    PrintFeature(channel_features[channel].variance_sum_of_squares),    PrintFeature(channel_features[channel].inverse_difference_moment),    PrintFeature(channel_features[channel].sum_average),    PrintFeature(channel_features[channel].sum_variance),    PrintFeature(channel_features[channel].sum_entropy),    PrintFeature(channel_features[channel].entropy),    PrintFeature(channel_features[channel].difference_variance),    PrintFeature(channel_features[channel].difference_entropy),    PrintFeature(channel_features[channel].measure_of_correlation_1),    PrintFeature(channel_features[channel].measure_of_correlation_2),    PrintFeature(channel_features[channel].maximum_correlation_coefficient));  return(n);}

static void OutputProperties(Image *image,ExceptionInfo *exception){  const char    *property,    *value;  (void) FormatLocaleFile(stdout,"  Image Properity:/n");  ResetImagePropertyIterator(image);  while ((property=GetNextImageProperty(image)) != (const char *) NULL ) {    (void) FormatLocaleFile(stdout,"    %s: ",property);    value=GetImageProperty(image,property,exception);    if (value != (const char *) NULL)      (void) FormatLocaleFile(stdout,"%s/n",value);  }  ResetImagePropertyIterator(image);}

static void MagickUsage(MagickBooleanType verbose){  const char    *name;  size_t    len;  name=GetClientName();  len=strlen(name);  if (len>=7 && LocaleCompare("convert",name+len-7) == 0) {    /* convert usage */    (void) FormatLocaleFile(stdout,       "Usage: %s [ {option} | {image} ... ] {output_image}/n",name);    (void) FormatLocaleFile(stdout,       "       %s -help | -version | -usage | -list {option}/n/n",name);    return;  }  else if (len>=6 && LocaleCompare("script",name+len-6) == 0) {    /* magick-script usage */    (void) FormatLocaleFile(stdout,      "Usage: %s {filename} [ {script_args} ... ]/n",name);  }  else {    /* magick usage */    (void) FormatLocaleFile(stdout,       "Usage: %s [ {option} | {image} ... ] {output_image}/n",name);    (void) FormatLocaleFile(stdout,       "       %s [ {option} | {image} ... ] -script {filename} [ {script_args} ...]/n",       name);  }  (void) FormatLocaleFile(stdout,    "       %s -help | -version | -usage | -list {option}/n/n",name);  if (verbose == MagickFalse)    return;  (void) FormatLocaleFile(stdout,"%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s/n",    "All options are performed in a strict 'as you see them' order/n",    "You must read-in images before you can operate on them./n",    "/n",    "Magick Script files can use any of the following forms.../n",    "     #!/path/to/magick -script/n",    "or/n",    "     #!/bin/sh/n",    "     :; exec magick -script /"$0/" /"[email
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