/*
% Copyright (C) 2003 GraphicsMagick Group
% Copyright (C) 2002 ImageMagick Studio
%
% This program is covered by multiple licenses, which are described in
% Copyright.txt. You should have received a copy of Copyright.txt with this
% package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%                            SSSSS  V   V   GGGG                              %
%                            SS     V   V  G                                  %
%                             SSS   V   V  G GG                               %
%                               SS   V V   G   G                              %
%                            SSSSS    V     GGG                               %
%                                                                             %
%                                                                             %
%                   Read/Write GraphicsMagick Image Format.                   %
%                                                                             %
%                                                                             %
%                              Software Design                                %
%                                John Cristy                                  %
%                             William Radcliffe                               %
%                                March 2000                                   %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/

/*
  Include declarations.
*/
#include "magick/studio.h"
#include "magick/attribute.h"
#include "magick/blob.h"
#include "magick/color.h"
#include "magick/constitute.h"
#include "magick/gem.h"
#include "magick/log.h"
#include "magick/magick.h"
#include "magick/render.h"
#include "magick/tempfile.h"
#include "magick/utility.h"
#if defined(HasXML)
#  if defined(WIN32)
#    if defined(__MINGW32__)
#      define _MSC_VER
#    endif
#    include <win32config.h>
#  endif
#  include <libxml/parser.h>
#  include <libxml/xmlmemory.h>
#  include <libxml/parserInternals.h>
#  include <libxml/xmlerror.h>
#endif

#if defined(HasAUTOTRACE)
#include "types.h"
#include "image-header.h"
#include "fit.h"
#include "output.h"
#include "pxl-outline.h"
#include "atquantize.h"
#include "thin-image.h"

char
  *version_string = "AutoTrace version 0.24a";
#endif

/*
  Define declarations.
*/
#define MVGPrintf  (void) fprintf

/*
  Typedef declarations.
*/
typedef struct _BoundingBox
{
  double
    x,
    y,
    width,
    height;
} BoundingBox;

typedef struct _SVGInfo
{
  FILE
    *file;

  ExceptionInfo
    *exception;

  Image
    *image;

  const ImageInfo
    *image_info;

  AffineMatrix
    affine;

  unsigned long
    width,
    height;

  char
    *size,
    *title,
    *comment;

  int
    n;

  double
    *scale,
    pointsize;

  ElementInfo
    element;

  SegmentInfo
    segment;

  BoundingBox
    bounds,
    view_box;

  PointInfo
    radius;

  char
    *stop_color,
    *offset,
    *text,
    *vertices,
    *url;

#if defined(HasXML)
  xmlParserCtxtPtr
    parser;

  xmlDocPtr
    document;
#endif
} SVGInfo;

/*
  Forward declarations.
*/
static unsigned int
  WriteSVGImage(const ImageInfo *,Image *);

#if defined(HasXML)
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e a d S V G I m a g e                                                   %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Method ReadSVGImage reads a Scalable Vector Gaphics file and returns it.  It
%  allocates the memory necessary for the new Image structure and returns a
%  pointer to the new image.
%
%  The format of the ReadSVGImage method is:
%
%      Image *ReadSVGImage(const ImageInfo *image_info,ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image:  Method ReadSVGImage returns a pointer to the image after
%      reading. A null image is returned if there is a memory shortage or if
%      the image cannot be read.
%
%    o image_info: Specifies a pointer to a ImageInfo structure.
%
%    o exception: return any errors or warnings in this structure.
%
%
*/

static double GetUserSpaceCoordinateValue(const SVGInfo *svg_info,int type,
  const char *string)
{
  char
    *p,
    token[MaxTextExtent];

  double
    value;

  assert(string != (const char *) NULL);
  p=(char *) string;
  GetToken(p,&p,token);
  value=atof(token);
  if (strchr(token,'%') != (char *) NULL)
    {
      double
        alpha,
        beta;

      if (type > 0)
        return(svg_info->view_box.width*value/100.0);
      if (type < 0)
        return(svg_info->view_box.height*value/100.0);
      alpha=value-svg_info->view_box.width;
      beta=value-svg_info->view_box.height;
      return(sqrt(alpha*alpha+beta*beta)/sqrt(2.0)/100.0);
    }
  GetToken(p,&p,token);
  if (LocaleNCompare(token,"cm",2) == 0)
    return(72.0*svg_info->scale[0]/2.54*value);
  if (LocaleNCompare(token,"em",2) == 0)
    return(svg_info->pointsize*value);
  if (LocaleNCompare(token,"ex",2) == 0)
    return(svg_info->pointsize*value/2.0);
  if (LocaleNCompare(token,"in",2) == 0)
    return(72.0*svg_info->scale[0]*value);
  if (LocaleNCompare(token,"mm",2) == 0)
    return(72.0*svg_info->scale[0]/25.4*value);
  if (LocaleNCompare(token,"pc",2) == 0)
    return(72.0*svg_info->scale[0]/6.0*value);
  if (LocaleNCompare(token,"pt",2) == 0)
    return(svg_info->scale[0]*value);
  if (LocaleNCompare(token,"px",2) == 0)
    return(value);
  return(value);
}

static char **GetStyleTokens(void *context,const char *text,int *number_tokens)
{
  char
    **tokens;

  register const char
    *p,
    *q;

  register long
    i;

  SVGInfo
    *svg_info;

  svg_info=(SVGInfo *) context;
  *number_tokens=0;
  if (text == (const char *) NULL)
    return((char **) NULL);
  /*
    Determine the number of arguments.
  */
  for (p=text; *p != '\0'; p++)
    if (*p == ':')
      (*number_tokens)+=2;
  tokens=(char **) AcquireMemory((*number_tokens+2)*sizeof(char *));
  if (tokens == (char **) NULL)
    {
      ThrowException(svg_info->exception,ResourceLimitError,
        "MemoryAllocationFailed","UnableToConvertStringToTokens");
      return((char **) NULL);
    }
  /*
    Convert string to an ASCII list.
  */
  i=0;
  p=text;
  for (q=p; *q != '\0'; q++)
  {
    if ((*q != ':') && (*q != ';') && (*q != '\0'))
      continue;
    tokens[i]=AllocateString(p);
    (void) strncpy(tokens[i],p,q-p);
    tokens[i][q-p]='\0';
    Strip(tokens[i++]);
    p=q+1;
  }
  tokens[i]=AllocateString(p);
  (void) strncpy(tokens[i],p,q-p);
  tokens[i][q-p]='\0';
  Strip(tokens[i++]);
  tokens[i]=(char *) NULL;
  return(tokens);
}

static char **GetTransformTokens(void *context,const char *text,
  int *number_tokens)
{
  char
    **tokens;

  register const char
    *p,
    *q;

  register long
    i;

  SVGInfo
    *svg_info;

  svg_info=(SVGInfo *) context;
  *number_tokens=0;
  if (text == (const char *) NULL)
    return((char **) NULL);
  /*
    Determine the number of arguments.
  */
  for (p=text; *p != '\0'; p++)
  {
    if (*p == '(')
      (*number_tokens)+=2;
  }
  tokens=(char **) AcquireMemory((*number_tokens+2)*sizeof(char *));
  if (tokens == (char **) NULL)
    {
      ThrowException(svg_info->exception,ResourceLimitError,
        "MemoryAllocationFailed","UnableToConvertStringToTokens");
      return((char **) NULL);
    }
  /*
    Convert string to an ASCII list.
  */
  i=0;
  p=text;
  for (q=p; *q != '\0'; q++)
  {
    if ((*q != '(') && (*q != ')') && (*q != '\0'))
      continue;
    tokens[i]=AllocateString(p);
    (void) strncpy(tokens[i],p,q-p);
    tokens[i][q-p]='\0';
    Strip(tokens[i++]);
    p=q+1;
  }
  tokens[i]=AllocateString(p);
  (void) strncpy(tokens[i],p,q-p);
  tokens[i][q-p]='\0';
  Strip(tokens[i++]);
  tokens[i]=(char *) NULL;
  return(tokens);
}

#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif

static int SVGIsStandalone(void *context)
{
  SVGInfo
    *svg_info;

  /*
    Is this document tagged standalone?
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  SAX.SVGIsStandalone()");
  svg_info=(SVGInfo *) context;
  return(svg_info->document->standalone == 1);
}

static int SVGHasInternalSubset(void *context)
{
  SVGInfo
    *svg_info;

  /*
    Does this document has an internal subset?
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.SVGHasInternalSubset()");
  svg_info=(SVGInfo *) context;
  return(svg_info->document->intSubset != NULL);
}

static int SVGHasExternalSubset(void *context)
{
  SVGInfo
    *svg_info;

  /*
    Does this document has an external subset?
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.SVGHasExternalSubset()");
  svg_info=(SVGInfo *) context;
  return(svg_info->document->extSubset != NULL);
}

static void SVGInternalSubset(void *context,const xmlChar *name,
  const xmlChar *external_id,const xmlChar *system_id)
{
  SVGInfo
    *svg_info;

  /*
    Does this document has an internal subset?
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.internalSubset(%.1024s, %.1024s, %.1024s)",(char *) name,
    (external_id != (const xmlChar *) NULL ? (char *) external_id : "none"),
    (system_id != (const xmlChar *) NULL ? (char *) system_id : "none"));
  svg_info=(SVGInfo *) context;
  (void) xmlCreateIntSubset(svg_info->document,name,external_id,system_id);
}

static xmlParserInputPtr SVGResolveEntity(void *context,
  const xmlChar *public_id,const xmlChar *system_id)
{
  SVGInfo
    *svg_info;

  xmlParserInputPtr
    stream;

  /*
    Special entity resolver, better left to the parser, it has more
    context than the application layer.  The default behaviour is to
    not resolve the entities, in that case the ENTITY_REF nodes are
    built in the structure (and the parameter values).
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.resolveEntity(%.1024s, %.1024s)",
    (public_id != (const xmlChar *) NULL ? (char *) public_id : "none"),
    (system_id != (const xmlChar *) NULL ? (char *) system_id : "none"));
  svg_info=(SVGInfo *) context;
  stream=xmlLoadExternalEntity((const char *) system_id,(const char *)
    public_id,svg_info->parser);
  return(stream);
}

static xmlEntityPtr SVGGetEntity(void *context,const xmlChar *name)
{
  SVGInfo
    *svg_info;

  /*
    Get an entity by name.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.SVGGetEntity(%.1024s)",name);
  svg_info=(SVGInfo *) context;
  return(xmlGetDocEntity(svg_info->document,name));
}

static xmlEntityPtr SVGGetParameterEntity(void *context,const xmlChar *name)
{
  SVGInfo
    *svg_info;

  /*
    Get a parameter entity by name.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.getParameterEntity(%.1024s)",name);
  svg_info=(SVGInfo *) context;
  return(xmlGetParameterEntity(svg_info->document,name));
}

static void SVGEntityDeclaration(void *context,const xmlChar *name,int type,
  const xmlChar *public_id,const xmlChar *system_id,xmlChar *content)
{
  SVGInfo
    *svg_info;

  /*
    An entity definition has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.entityDecl(%.1024s, %d, %.1024s, %.1024s, %.1024s)",name,type,
    public_id != (xmlChar *) NULL ? (char *) public_id : "none",
    system_id != (xmlChar *) NULL ? (char *) system_id : "none",content);
  svg_info=(SVGInfo *) context;
  if (svg_info->parser->inSubset == 1)
    (void) xmlAddDocEntity(svg_info->document,name,type,public_id,system_id,
      content);
  else
    if (svg_info->parser->inSubset == 2)
      (void) xmlAddDtdEntity(svg_info->document,name,type,public_id,system_id,
        content);
}

static void SVGAttributeDeclaration(void *context,const xmlChar *element,
  const xmlChar *name,int type,int value,const xmlChar *default_value,
  xmlEnumerationPtr tree)
{
  SVGInfo
    *svg_info;

  xmlChar
    *fullname,
    *prefix;

  xmlParserCtxtPtr
    parser;

  /*
    An attribute definition has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.attributeDecl(%.1024s, %.1024s, %d, %d, %.1024s, ...)",element,
    name,type,value,default_value);
  svg_info=(SVGInfo *) context;
  fullname=(xmlChar *) NULL;
  prefix=(xmlChar *) NULL;
  parser=svg_info->parser;
  fullname=(xmlChar *) xmlSplitQName(parser,name,&prefix);
  if (parser->inSubset == 1)
    (void) xmlAddAttributeDecl(&parser->vctxt,svg_info->document->intSubset,
      element,fullname,prefix,(xmlAttributeType) type,
      (xmlAttributeDefault) value,default_value,tree);
  else
    if (parser->inSubset == 2)
      (void) xmlAddAttributeDecl(&parser->vctxt,svg_info->document->extSubset,
        element,fullname,prefix,(xmlAttributeType) type,
        (xmlAttributeDefault) value,default_value,tree);
  if (prefix != (xmlChar *) NULL)
    xmlFree(prefix);
  if (fullname != (xmlChar *) NULL)
    xmlFree(fullname);
}

static void SVGElementDeclaration(void *context,const xmlChar *name,int type,
  xmlElementContentPtr content)
{
  SVGInfo
    *svg_info;

  xmlParserCtxtPtr
    parser;

  /*
    An element definition has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.elementDecl(%.1024s, %d, ...)",name,type);
  svg_info=(SVGInfo *) context;
  parser=svg_info->parser;
  if (parser->inSubset == 1)
    (void) xmlAddElementDecl(&parser->vctxt,svg_info->document->intSubset,
      name,(xmlElementTypeVal) type,content);
  else
    if (parser->inSubset == 2)
      (void) xmlAddElementDecl(&parser->vctxt,svg_info->document->extSubset,
        name,(xmlElementTypeVal) type,content);
}

static void SVGNotationDeclaration(void *context,const xmlChar *name,
  const xmlChar *public_id,const xmlChar *system_id)
{
  SVGInfo
    *svg_info;

  xmlParserCtxtPtr
    parser;

  /*
    What to do when a notation declaration has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.notationDecl(%.1024s, %.1024s, %.1024s)",name,
    public_id != (const xmlChar *) NULL ? (char *) public_id : "none",
    system_id != (const xmlChar *) NULL ? (char *) system_id : "none");
  svg_info=(SVGInfo *) context;
  parser=svg_info->parser;
  if (parser->inSubset == 1)
    (void) xmlAddNotationDecl(&parser->vctxt,svg_info->document->intSubset,
      name,public_id,system_id);
  else
    if (parser->inSubset == 2)
      (void) xmlAddNotationDecl(&parser->vctxt,svg_info->document->intSubset,
        name,public_id,system_id);
}

static void SVGUnparsedEntityDeclaration(void *context,const xmlChar *name,
  const xmlChar *public_id,const xmlChar *system_id,const xmlChar *notation)
{
  SVGInfo
    *svg_info;

  /*
    What to do when an unparsed entity declaration is parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.unparsedEntityDecl(%.1024s, %.1024s, %.1024s, %.1024s)",name,
    public_id != (xmlChar *) NULL ? (char *) public_id : "none",
    system_id != (xmlChar *) NULL ? (char *) system_id : "none",notation);
  svg_info=(SVGInfo *) context;
  (void) xmlAddDocEntity(svg_info->document,name,
    XML_EXTERNAL_GENERAL_UNPARSED_ENTITY,public_id,system_id,notation);

}

static void SVGSetDocumentLocator(void *context,xmlSAXLocatorPtr location)
{
  SVGInfo
    *svg_info;

  /*
    Receive the document locator at startup, actually xmlDefaultSAXLocator.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  SAX.setDocumentLocator()");
  svg_info=(SVGInfo *) context;
}

static void SVGStartDocument(void *context)
{
  SVGInfo
    *svg_info;

  xmlParserCtxtPtr
    parser;

  /*
    Called when the document start being processed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  SAX.startDocument()");
  svg_info=(SVGInfo *) context;
  GetExceptionInfo(svg_info->exception);
  parser=svg_info->parser;
  svg_info->document=xmlNewDoc(parser->version);
  if (svg_info->document == (xmlDocPtr) NULL)
    return;
  if (parser->encoding == NULL)
    svg_info->document->encoding=(const xmlChar *) NULL;
  else
    svg_info->document->encoding=xmlStrdup(parser->encoding);
  svg_info->document->standalone=parser->standalone;
}

static void SVGEndDocument(void *context)
{
  SVGInfo
    *svg_info;

  /*
    Called when the document end has been detected.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  SAX.endDocument()");
  svg_info=(SVGInfo *) context;
  if (svg_info->offset != (char *) NULL)
    LiberateMemory((void **) &svg_info->offset);
  if (svg_info->stop_color != (char *) NULL)
    LiberateMemory((void **) &svg_info->stop_color);
  if (svg_info->scale != (double *) NULL)
    LiberateMemory((void **) &svg_info->scale);
  if (svg_info->text != (char *) NULL)
    LiberateMemory((void **) &svg_info->text);
  if (svg_info->vertices != (char *) NULL)
    LiberateMemory((void **) &svg_info->vertices);
  if (svg_info->url != (char *) NULL)
    LiberateMemory((void **) &svg_info->url);
}

static void SVGStartElement(void *context,const xmlChar *name,
  const xmlChar **attributes)
{
  char
    *color,
    id[MaxTextExtent],
    *p,
    token[MaxTextExtent],
    **tokens,
    *units;

  const char
    *keyword,
    *value;

  int
    number_tokens;

  SVGInfo
    *svg_info;

  register long
    i,
    j;

  /*
    Called when an opening tag has been processed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.startElement(%.1024s",name);
  svg_info=(SVGInfo *) context;
  svg_info->n++;
  ReacquireMemory((void **) &svg_info->scale,(svg_info->n+1)*sizeof(double));
  if (svg_info->scale == (double *) NULL)
    {
      ThrowException(svg_info->exception,ResourceLimitError,
        "MemoryAllocationFailed","unable to convert SVG image");
      return;
    }
  svg_info->scale[svg_info->n]=svg_info->scale[svg_info->n-1];
  color=AllocateString("none");
  units=AllocateString("userSpaceOnUse");
  value=(const char *) NULL;
  if (attributes != (const xmlChar **) NULL)
    for (i=0; (attributes[i] != (const xmlChar *) NULL); i+=2)
    {
      keyword=(const char *) attributes[i];
      value=(const char *) attributes[i+1];
      switch (*keyword)
      {
        case 'C':
        case 'c':
        {
          if (LocaleCompare(keyword,"cx") == 0)
            {
              svg_info->element.cx=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"cy") == 0)
            {
              svg_info->element.cy=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'F':
        case 'f':
        {
          if (LocaleCompare(keyword,"fx") == 0)
            {
              svg_info->element.major=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"fy") == 0)
            {
              svg_info->element.minor=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'H':
        case 'h':
        {
          if (LocaleCompare(keyword,"height") == 0)
            {
              svg_info->bounds.height=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'I':
        case 'i':
        {
          if (LocaleCompare(keyword,"id") == 0)
            {
              (void) strncpy(id,value,MaxTextExtent-1);
              break;
            }
          break;
        }
        case 'R':
        case 'r':
        {
          if (LocaleCompare(keyword,"r") == 0)
            {
              svg_info->element.angle=
                GetUserSpaceCoordinateValue(svg_info,0,value);
              break;
            }
          break;
        }
        case 'W':
        case 'w':
        {
          if (LocaleCompare(keyword,"width") == 0)
            {
              svg_info->bounds.width=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          break;
        }
        case 'X':
        case 'x':
        {
          if (LocaleCompare(keyword,"x") == 0)
            {
              svg_info->bounds.x=GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"x1") == 0)
            {
              svg_info->segment.x1=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"x2") == 0)
            {
              svg_info->segment.x2=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          break;
        }
        case 'Y':
        case 'y':
        {
          if (LocaleCompare(keyword,"y") == 0)
            {
              svg_info->bounds.y=GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          if (LocaleCompare(keyword,"y1") == 0)
            {
              svg_info->segment.y1=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          if (LocaleCompare(keyword,"y2") == 0)
            {
              svg_info->segment.y2=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        default:
          break;
      }
    }
  switch (*name)
  {
    case 'C':
    case 'c':
    {
      if (LocaleCompare((char *) name,"circle") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"clipPath") == 0)
        {
          MVGPrintf(svg_info->file,"push clip-path '%s'\n",id);
          break;
        }
      break;
    }
    case 'D':
    case 'd':
    {
      if (LocaleCompare((char *) name,"defs") == 0)
        {
          MVGPrintf(svg_info->file,"push defs\n");
          break;
        }
      break;
    }
    case 'E':
    case 'e':
    {
      if (LocaleCompare((char *) name,"ellipse") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    case 'G':
    case 'g':
    {
      if (LocaleCompare((char *) name,"g") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    case 'I':
    case 'i':
    {
      if (LocaleCompare((char *) name,"image") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    case 'L':
    case 'l':
    {
      if (LocaleCompare((char *) name,"line") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"linearGradient") == 0)
        {
          MVGPrintf(svg_info->file,"push gradient '%s' linear %g,%g %g,%g\n",id,
            svg_info->segment.x1,svg_info->segment.y1,svg_info->segment.x2,
            svg_info->segment.y2);
          break;
        }
      break;
    }
    case 'P':
    case 'p':
    {
      if (LocaleCompare((char *) name,"path") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"pattern") == 0)
        {
          MVGPrintf(svg_info->file,"push pattern '%s' %g,%g %g,%g\n",id,
            svg_info->bounds.x,svg_info->bounds.y,svg_info->bounds.width,
            svg_info->bounds.height);
          break;
        }
      if (LocaleCompare((char *) name,"polygon") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"polyline") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    case 'R':
    case 'r':
    {
      if (LocaleCompare((char *) name,"radialGradient") == 0)
        {
          MVGPrintf(svg_info->file,"push gradient '%s' radial %g,%g %g,%g %g\n",
            id,svg_info->element.cx,svg_info->element.cy,
            svg_info->element.major,svg_info->element.minor,
            svg_info->element.angle);
          break;
        }
      if (LocaleCompare((char *) name,"rect") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    case 'S':
    case 's':
    {
      if (LocaleCompare((char *) name,"svg") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    case 'T':
    case 't':
    {
      if (LocaleCompare((char *) name,"text") == 0)
        {
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"tspan") == 0)
        {
          Strip(svg_info->text);
          if (*svg_info->text != '\0')
            {
              DrawInfo
                *draw_info;

              TypeMetric
                metrics;

              char
                *text;

              text=EscapeString(svg_info->text,'\'');
              MVGPrintf(svg_info->file,"text %g,%g '%s'\n",svg_info->bounds.x,
                svg_info->bounds.y,text);
              LiberateMemory((void **) &text);
              draw_info=CloneDrawInfo(svg_info->image_info,(DrawInfo *) NULL);
              draw_info->pointsize=svg_info->pointsize;
              draw_info->text=AllocateString(svg_info->text);
              (void) ConcatenateString(&draw_info->text," ");
              GetTypeMetrics(svg_info->image,draw_info,&metrics);
              svg_info->bounds.x+=metrics.width;
              DestroyDrawInfo(draw_info);
              *svg_info->text='\0';
            }
          MVGPrintf(svg_info->file,"push graphic-context\n");
          break;
        }
      break;
    }
    default:
      break;
  }
  if (attributes != (const xmlChar **) NULL)
    for (i=0; (attributes[i] != (const xmlChar *) NULL); i+=2)
    {
      keyword=(const char *) attributes[i];
      value=(const char *) attributes[i+1];
      (void) LogMagickEvent(CoderEvent,GetMagickModule(),
        "    %.1024s = %.1024s",keyword,value);
      switch (*keyword)
      {
        case 'A':
        case 'a':
        {
          if (LocaleCompare(keyword,"angle") == 0)
            {
              MVGPrintf(svg_info->file,"angle %g\n",
                GetUserSpaceCoordinateValue(svg_info,0,value));
              break;
            }
          break;
        }
        case 'C':
        case 'c':
        {
          if (LocaleCompare(keyword,"clip-path") == 0)
            {
              MVGPrintf(svg_info->file,"clip-path '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"clip-rule") == 0)
            {
              MVGPrintf(svg_info->file,"clip-rule '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"clipPathUnits") == 0)
            {
              (void) CloneString(&units,value);
              MVGPrintf(svg_info->file,"clip-units '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"color") == 0)
            {
              (void) CloneString(&color,value);
              break;
            }
          if (LocaleCompare(keyword,"cx") == 0)
            {
              svg_info->element.cx=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"cy") == 0)
            {
              svg_info->element.cy=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'D':
        case 'd':
        {
          if (LocaleCompare(keyword,"d") == 0)
            {
              (void) CloneString(&svg_info->vertices,value);
              break;
            }
          if (LocaleCompare(keyword,"dx") == 0)
            {
              svg_info->bounds.x+=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"dy") == 0)
            {
              svg_info->bounds.y+=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'F':
        case 'f':
        {
          if (LocaleCompare(keyword,"fill") == 0)
            {
              if (LocaleCompare(value,"currentColor") == 0)
                {
                  MVGPrintf(svg_info->file,"fill '%s'\n",color);
                  break;
                }
              MVGPrintf(svg_info->file,"fill '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"fillcolor") == 0)
            {
              MVGPrintf(svg_info->file,"fill '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"fill-rule") == 0)
            {
              MVGPrintf(svg_info->file,"fill-rule '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"fill-opacity") == 0)
            {
              MVGPrintf(svg_info->file,"fill-opacity '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"font-family") == 0)
            {
              MVGPrintf(svg_info->file,"font-family '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"font-stretch") == 0)
            {
              MVGPrintf(svg_info->file,"font-stretch '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"font-style") == 0)
            {
              MVGPrintf(svg_info->file,"font-style '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"font-size") == 0)
            {
              svg_info->pointsize=
                GetUserSpaceCoordinateValue(svg_info,0,value);
              MVGPrintf(svg_info->file,"font-size %g\n",svg_info->pointsize);
              break;
            }
          if (LocaleCompare(keyword,"font-weight") == 0)
            {
              MVGPrintf(svg_info->file,"font-weight '%s'\n",value);
              break;
            }
          break;
        }
        case 'G':
        case 'g':
        {
          if (LocaleCompare(keyword,"gradientTransform") == 0)
            {
              AffineMatrix
                affine,
                current,
                transform;

              IdentityAffine(&transform);
              (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  ");
              tokens=GetTransformTokens(context,value,&number_tokens);
              for (j=0; j < (number_tokens-1); j+=2)
              {
                keyword=(char *) tokens[j];
                value=(char *) tokens[j+1];
                (void) LogMagickEvent(CoderEvent,GetMagickModule(),
                  "    %.1024s: %.1024s",keyword,value);
                current=transform;
                IdentityAffine(&affine);
                switch (*keyword)
                {
                  case 'M':
                  case 'm':
                  {
                    if (LocaleCompare(keyword,"matrix") == 0)
                      {
                        p=(char *) value;
                        GetToken(p,&p,token);
                        affine.sx=atof(value);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.rx=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.ry=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.sy=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.tx=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.ty=atof(token);
                        break;
                      }
                    break;
                  }
                  case 'R':
                  case 'r':
                  {
                    if (LocaleCompare(keyword,"rotate") == 0)
                      {
                        double
                          angle;

                        angle=GetUserSpaceCoordinateValue(svg_info,0,value);
                        affine.sx=cos(DegreesToRadians(fmod(angle,360.0)));
                        affine.rx=sin(DegreesToRadians(fmod(angle,360.0)));
                        affine.ry=(-sin(DegreesToRadians(fmod(angle,360.0))));
                        affine.sy=cos(DegreesToRadians(fmod(angle,360.0)));
                        break;
                      }
                    break;
                  }
                  case 'S':
                  case 's':
                  {
                    if (LocaleCompare(keyword,"scale") == 0)
                      {
                        for (p=(char *) value; *p != '\0'; p++)
                          if (isspace((int) (*p)) || (*p == ','))
                            break;
                        affine.sx=GetUserSpaceCoordinateValue(svg_info,1,value);
                        affine.sy=affine.sx;
                        if (*p != '\0')
                          affine.sy=
                            GetUserSpaceCoordinateValue(svg_info,-1,p+1);
                        svg_info->scale[svg_info->n]=ExpandAffine(&affine);
                        break;
                      }
                    if (LocaleCompare(keyword,"skewX") == 0)
                      {
                        affine.sx=svg_info->affine.sx;
                        affine.ry=tan(DegreesToRadians(fmod(
                          GetUserSpaceCoordinateValue(svg_info,1,value),
                          360.0)));
                        affine.sy=svg_info->affine.sy;
                        break;
                      }
                    if (LocaleCompare(keyword,"skewY") == 0)
                      {
                        affine.sx=svg_info->affine.sx;
                        affine.rx=tan(DegreesToRadians(fmod(
                          GetUserSpaceCoordinateValue(svg_info,-1,value),
                          360.0)));
                        affine.sy=svg_info->affine.sy;
                        break;
                      }
                    break;
                  }
                  case 'T':
                  case 't':
                  {
                    if (LocaleCompare(keyword,"translate") == 0)
                      {
                        for (p=(char *) value; *p != '\0'; p++)
                          if (isspace((int) (*p)) || (*p == ','))
                            break;
                        affine.tx=GetUserSpaceCoordinateValue(svg_info,1,value);
                        affine.ty=affine.tx;
                        if (*p != '\0')
                          affine.ty=
                            GetUserSpaceCoordinateValue(svg_info,-1,p+1);
                        break;
                      }
                    break;
                  }
                  default:
                    break;
                }
                transform.sx=current.sx*affine.sx+current.ry*affine.rx;
                transform.rx=current.rx*affine.sx+current.sy*affine.rx;
                transform.ry=current.sx*affine.ry+current.ry*affine.sy;
                transform.sy=current.rx*affine.ry+current.sy*affine.sy;
                transform.tx=current.sx*affine.tx+current.ry*affine.ty+
                  current.tx;
                transform.ty=current.rx*affine.tx+current.sy*affine.ty+
                  current.ty;
              }
              MVGPrintf(svg_info->file,"affine %g %g %g %g %g %g\n",
                transform.sx,transform.rx,transform.ry,transform.sy,
                transform.tx,transform.ty);
              for (j=0; j < number_tokens; j++)
                LiberateMemory((void **) &tokens[j]);
              LiberateMemory((void **) &tokens);
              break;
            }
          if (LocaleCompare(keyword,"gradientUnits") == 0)
            {
              (void) CloneString(&units,value);
              MVGPrintf(svg_info->file,"gradient-units '%s'\n",value);
              break;
            }
          break;
        }
        case 'H':
        case 'h':
        {
          if (LocaleCompare(keyword,"height") == 0)
            {
              svg_info->bounds.height=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          if (LocaleCompare(keyword,"href") == 0)
            {
              (void) CloneString(&svg_info->url,value);
              break;
            }
          break;
        }
        case 'M':
        case 'm':
        {
          if (LocaleCompare(keyword,"major") == 0)
            {
              svg_info->element.major=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"minor") == 0)
            {
              svg_info->element.minor=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'O':
        case 'o':
        {
          if (LocaleCompare(keyword,"offset") == 0)
            {
              (void) CloneString(&svg_info->offset,value);
              break;
            }
          if (LocaleCompare(keyword,"opacity") == 0)
            {
              MVGPrintf(svg_info->file,"opacity '%s'\n",value);
              break;
            }
          break;
        }
        case 'P':
        case 'p':
        {
          if (LocaleCompare(keyword,"path") == 0)
            {
              (void) CloneString(&svg_info->url,value);
              break;
            }
          if (LocaleCompare(keyword,"points") == 0)
            {
              (void) CloneString(&svg_info->vertices,value);
              break;
            }
          break;
        }
        case 'R':
        case 'r':
        {
          if (LocaleCompare(keyword,"r") == 0)
            {
              svg_info->element.major=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              svg_info->element.minor=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          if (LocaleCompare(keyword,"rotate") == 0)
            {
              double
                angle;

              angle=GetUserSpaceCoordinateValue(svg_info,0,value);
              MVGPrintf(svg_info->file,"translate %g,%g\n",svg_info->bounds.x,
                svg_info->bounds.y);
              svg_info->bounds.x=0;
              svg_info->bounds.y=0;
              MVGPrintf(svg_info->file,"rotate %g\n",angle);
              break;
            }
          if (LocaleCompare(keyword,"rx") == 0)
            {
              if (LocaleCompare((char *) name,"ellipse") == 0)
                svg_info->element.major=
                  GetUserSpaceCoordinateValue(svg_info,1,value);
              else
                svg_info->radius.x=
                  GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"ry") == 0)
            {
              if (LocaleCompare((char *) name,"ellipse") == 0)
                svg_info->element.minor=
                  GetUserSpaceCoordinateValue(svg_info,-1,value);
              else
                svg_info->radius.y=
                  GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        case 'S':
        case 's':
        {
          if (LocaleCompare(keyword,"stop-color") == 0)
            {
              (void) CloneString(&svg_info->stop_color,value);
              break;
            }
          if (LocaleCompare(keyword,"stroke") == 0)
            {
              if (LocaleCompare(value,"currentColor") == 0)
                {
                  MVGPrintf(svg_info->file,"stroke '%s'\n",color);
                  break;
                }
              MVGPrintf(svg_info->file,"stroke '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-antialiasing") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-antialias %d\n",
                LocaleCompare(value,"true") == 0);
              break;
            }
          if (LocaleCompare(keyword,"stroke-dasharray") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-dasharray %s\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-dashoffset") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-dashoffset %s\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-linecap") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-linecap '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-linejoin") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-linejoin '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-miterlimit") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-miterlimit '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-opacity") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-opacity '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"stroke-width") == 0)
            {
              MVGPrintf(svg_info->file,"stroke-width %g\n",
                GetUserSpaceCoordinateValue(svg_info,1,value));
              break;
            }
          if (LocaleCompare(keyword,"style") == 0)
            {
              (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  ");
              tokens=GetStyleTokens(context,value,&number_tokens);
              for (j=0; j < (number_tokens-1); j+=2)
              {
                keyword=(char *) tokens[j];
                value=(char *) tokens[j+1];
                (void) LogMagickEvent(CoderEvent,GetMagickModule(),
                  "    %.1024s: %.1024s",keyword,value);
                switch (*keyword)
                {
                  case 'C':
                  case 'c':
                  {
                     if (LocaleCompare(keyword,"clip-path") == 0)
                       {
                         MVGPrintf(svg_info->file,"clip-path '%s'\n",value);
                         break;
                       }
                    if (LocaleCompare(keyword,"clip-rule") == 0)
                      {
                        MVGPrintf(svg_info->file,"clip-rule '%s'\n",value);
                        break;
                      }
                     if (LocaleCompare(keyword,"clipPathUnits") == 0)
                       {
                         (void) CloneString(&units,value);
                         MVGPrintf(svg_info->file,"clip-units '%s'\n",value);
                         break;
                       }
                    if (LocaleCompare(keyword,"color") == 0)
                      {
                        (void) CloneString(&color,value);
                        break;
                      }
                    break;
                  }
                  case 'F':
                  case 'f':
                  {
                    if (LocaleCompare(keyword,"fill") == 0)
                      {
                         if (LocaleCompare(value,"currentColor") == 0)
                           {
                             MVGPrintf(svg_info->file,"fill '%s'\n",color);
                             break;
                           }
                        MVGPrintf(svg_info->file,"fill '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"fillcolor") == 0)
                      {
                        MVGPrintf(svg_info->file,"fill '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"fill-rule") == 0)
                      {
                        MVGPrintf(svg_info->file,"fill-rule '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"fill-opacity") == 0)
                      {
                        MVGPrintf(svg_info->file,"fill-opacity '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"font-family") == 0)
                      {
                        MVGPrintf(svg_info->file,"font-family '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"font-stretch") == 0)
                      {
                        MVGPrintf(svg_info->file,"font-stretch '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"font-style") == 0)
                      {
                        MVGPrintf(svg_info->file,"font-style '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"font-size") == 0)
                      {
                        svg_info->pointsize=
                          GetUserSpaceCoordinateValue(svg_info,0,value);
                        MVGPrintf(svg_info->file,"font-size %g\n",
                          svg_info->pointsize);
                        break;
                      }
                    if (LocaleCompare(keyword,"font-weight") == 0)
                      {
                        MVGPrintf(svg_info->file,"font-weight '%s'\n",value);
                        break;
                      }
                    break;
                  }
                  case 'O':
                  case 'o':
                  {
                    if (LocaleCompare(keyword,"offset") == 0)
                      {
                        MVGPrintf(svg_info->file,"offset %g\n",
                          GetUserSpaceCoordinateValue(svg_info,1,value));
                        break;
                      }
                    if (LocaleCompare(keyword,"opacity") == 0)
                      {
                        MVGPrintf(svg_info->file,"opacity '%s'\n",value);
                        break;
                      }
                    break;
                  }
                  case 'S':
                  case 's':
                  {
                    if (LocaleCompare(keyword,"stop-color") == 0)
                      {
                        (void) CloneString(&svg_info->stop_color,value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke") == 0)
                      {
                         if (LocaleCompare(value,"currentColor") == 0)
                           {
                             MVGPrintf(svg_info->file,"stroke '%s'\n",color);
                             break;
                           }
                        MVGPrintf(svg_info->file,"stroke '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-antialiasing") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-antialias %d\n",
                          LocaleCompare(value,"true") == 0);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-dasharray") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-dasharray %s\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-dashoffset") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-dashoffset %s\n",
                          value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-linecap") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-linecap '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-linejoin") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-linejoin '%s'\n",
                          value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-miterlimit") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-miterlimit '%s'\n",
                          value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-opacity") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-opacity '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"stroke-width") == 0)
                      {
                        MVGPrintf(svg_info->file,"stroke-width %g\n",
                          GetUserSpaceCoordinateValue(svg_info,1,value));
                        break;
                      }
                    break;
                  }
                  case 't':
                  case 'T':
                  {
                    if (LocaleCompare(keyword,"text-align") == 0)
                      {
                        MVGPrintf(svg_info->file,"text-align '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"text-anchor") == 0)
                      {
                        MVGPrintf(svg_info->file,"text-anchor '%s'\n",value);
                        break;
                      }
                    if (LocaleCompare(keyword,"text-decoration") == 0)
                      {
                        if (LocaleCompare(value,"underline") == 0)
                          MVGPrintf(svg_info->file,"decorate underline\n");
                        if (LocaleCompare(value,"line-through") == 0)
                          MVGPrintf(svg_info->file,"decorate line-through\n");
                        if (LocaleCompare(value,"overline") == 0)
                          MVGPrintf(svg_info->file,"decorate overline\n");
                        break;
                      }
                    if (LocaleCompare(keyword,"text-antialiasing") == 0)
                      {
                        MVGPrintf(svg_info->file,"text-antialias %d\n",
                          LocaleCompare(value,"true") == 0);
                        break;
                      }
                    break;
                  }
                  default:
                    break;
                }
              }
              for (j=0; j < number_tokens; j++)
                LiberateMemory((void **) &tokens[j]);
              LiberateMemory((void **) &tokens);
              break;
            }
          break;
        }
        case 'T':
        case 't':
        {
          if (LocaleCompare(keyword,"text-align") == 0)
            {
              MVGPrintf(svg_info->file,"text-align '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"text-anchor") == 0)
            {
              MVGPrintf(svg_info->file,"text-anchor '%s'\n",value);
              break;
            }
          if (LocaleCompare(keyword,"text-decoration") == 0)
            {
              if (LocaleCompare(value,"underline") == 0)
                MVGPrintf(svg_info->file,"decorate underline\n");
              if (LocaleCompare(value,"line-through") == 0)
                MVGPrintf(svg_info->file,"decorate line-through\n");
              if (LocaleCompare(value,"overline") == 0)
                MVGPrintf(svg_info->file,"decorate overline\n");
              break;
            }
          if (LocaleCompare(keyword,"text-antialiasing") == 0)
            {
              MVGPrintf(svg_info->file,"text-antialias %d\n",
                LocaleCompare(value,"true") == 0);
              break;
            }
          if (LocaleCompare(keyword,"transform") == 0)
            {
              AffineMatrix
                affine,
                current,
                transform;

              IdentityAffine(&transform);
              (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  ");
              tokens=GetTransformTokens(context,value,&number_tokens);
              for (j=0; j < (number_tokens-1); j+=2)
              {
                keyword=(char *) tokens[j];
                value=(char *) tokens[j+1];
                (void) LogMagickEvent(CoderEvent,GetMagickModule(),
                  "    %.1024s: %.1024s",keyword,value);
                current=transform;
                IdentityAffine(&affine);
                switch (*keyword)
                {
                  case 'M':
                  case 'm':
                  {
                    if (LocaleCompare(keyword,"matrix") == 0)
                      {
                        p=(char *) value;
                        GetToken(p,&p,token);
                        affine.sx=atof(value);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.rx=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.ry=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.sy=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.tx=atof(token);
                        GetToken(p,&p,token);
                        if (*token == ',')
                          GetToken(p,&p,token);
                        affine.ty=atof(token);
                        break;
                      }
                    break;
                  }
                  case 'R':
                  case 'r':
                  {
                    if (LocaleCompare(keyword,"rotate") == 0)
                      {
                        double
                          angle;

                        angle=GetUserSpaceCoordinateValue(svg_info,0,value);
                        affine.sx=cos(DegreesToRadians(fmod(angle,360.0)));
                        affine.rx=sin(DegreesToRadians(fmod(angle,360.0)));
                        affine.ry=(-sin(DegreesToRadians(fmod(angle,360.0))));
                        affine.sy=cos(DegreesToRadians(fmod(angle,360.0)));
                        break;
                      }
                    break;
                  }
                  case 'S':
                  case 's':
                  {
                    if (LocaleCompare(keyword,"scale") == 0)
                      {
                        for (p=(char *) value; *p != '\0'; p++)
                          if (isspace((int) (*p)) || (*p == ','))
                            break;
                        affine.sx=GetUserSpaceCoordinateValue(svg_info,1,value);
                        affine.sy=affine.sx;
                        if (*p != '\0')
                          affine.sy=
                            GetUserSpaceCoordinateValue(svg_info,-1,p+1);
                        svg_info->scale[svg_info->n]=ExpandAffine(&affine);
                        break;
                      }
                    if (LocaleCompare(keyword,"skewX") == 0)
                      {
                        affine.sx=svg_info->affine.sx;
                        affine.ry=tan(DegreesToRadians(fmod(
                          GetUserSpaceCoordinateValue(svg_info,1,value),
                          360.0)));
                        affine.sy=svg_info->affine.sy;
                        break;
                      }
                    if (LocaleCompare(keyword,"skewY") == 0)
                      {
                        affine.sx=svg_info->affine.sx;
                        affine.rx=tan(DegreesToRadians(fmod(
                          GetUserSpaceCoordinateValue(svg_info,-1,value),
                          360.0)));
                        affine.sy=svg_info->affine.sy;
                        break;
                      }
                    break;
                  }
                  case 'T':
                  case 't':
                  {
                    if (LocaleCompare(keyword,"translate") == 0)
                      {
                        for (p=(char *) value; *p != '\0'; p++)
                          if (isspace((int) (*p)) || (*p == ','))
                            break;
                        affine.tx=GetUserSpaceCoordinateValue(svg_info,1,value);
                        affine.ty=affine.tx;
                        if (*p != '\0')
                          affine.ty=
                            GetUserSpaceCoordinateValue(svg_info,-1,p+1);
                        break;
                      }
                    break;
                  }
                  default:
                    break;
                }
                transform.sx=current.sx*affine.sx+current.ry*affine.rx;
                transform.rx=current.rx*affine.sx+current.sy*affine.rx;
                transform.ry=current.sx*affine.ry+current.ry*affine.sy;
                transform.sy=current.rx*affine.ry+current.sy*affine.sy;
                transform.tx=current.sx*affine.tx+current.ry*affine.ty+
                  current.tx;
                transform.ty=current.rx*affine.tx+current.sy*affine.ty+
                  current.ty;
              }
              MVGPrintf(svg_info->file,"affine %g %g %g %g %g %g\n",
                transform.sx,transform.rx,transform.ry,transform.sy,
                transform.tx,transform.ty);
              for (j=0; j < number_tokens; j++)
                LiberateMemory((void **) &tokens[j]);
              LiberateMemory((void **) &tokens);
              break;
            }
          break;
        }
        case 'V':
        case 'v':
        {
          if (LocaleCompare(keyword,"verts") == 0)
            {
              (void) CloneString(&svg_info->vertices,value);
              break;
            }
          if (LocaleCompare(keyword,"viewBox") == 0)
            {
              p=(char *) value;
              GetToken(p,&p,token);
              svg_info->view_box.x=atof(token);
              GetToken(p,&p,token);
              if (*token == ',')
                GetToken(p,&p,token);
              svg_info->view_box.y=atof(token);
              GetToken(p,&p,token);
              if (*token == ',')
                GetToken(p,&p,token);
              svg_info->view_box.width=atof(token);
              if (svg_info->bounds.width == 0)
                svg_info->bounds.width=svg_info->view_box.width;
              GetToken(p,&p,token);
              if (*token == ',')
                GetToken(p,&p,token);
              svg_info->view_box.height=atof(token);
              if (svg_info->bounds.height == 0)
                svg_info->bounds.height=svg_info->view_box.height;
              break;
            }
          break;
        }
        case 'W':
        case 'w':
        {
          if (LocaleCompare(keyword,"width") == 0)
            {
              svg_info->bounds.width=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          break;
        }
        case 'X':
        case 'x':
        {
          if (LocaleCompare(keyword,"x") == 0)
            {
              svg_info->bounds.x=GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"xlink:href") == 0)
            {
              (void) CloneString(&svg_info->url,value);
              break;
            }
          if (LocaleCompare(keyword,"x1") == 0)
            {
              svg_info->segment.x1=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          if (LocaleCompare(keyword,"x2") == 0)
            {
              svg_info->segment.x2=
                GetUserSpaceCoordinateValue(svg_info,1,value);
              break;
            }
          break;
        }
        case 'Y':
        case 'y':
        {
          if (LocaleCompare(keyword,"y") == 0)
            {
              svg_info->bounds.y=GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          if (LocaleCompare(keyword,"y1") == 0)
            {
              svg_info->segment.y1=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          if (LocaleCompare(keyword,"y2") == 0)
            {
              svg_info->segment.y2=
                GetUserSpaceCoordinateValue(svg_info,-1,value);
              break;
            }
          break;
        }
        default:
          break;
      }
    }
  if (LocaleCompare((char *) name,"svg") == 0)
    {
      if (svg_info->document->encoding != (const xmlChar *) NULL)
        MVGPrintf(svg_info->file,"encoding %.1024s\n",
          (char *) svg_info->document->encoding);
      if (attributes != (const xmlChar **) NULL)
        {
          double
            sx,
            sy;

          if ((svg_info->view_box.width == 0.0) ||
              (svg_info->view_box.height == 0.0))
            svg_info->view_box=svg_info->bounds;
          svg_info->width=(unsigned long) svg_info->bounds.width;
          svg_info->height=(unsigned long) svg_info->bounds.height;
          MVGPrintf(svg_info->file,"viewbox 0 0 %lu %lu\n",svg_info->width,
                    svg_info->height);
          /*
            Set initial canvas background color to user specified value
          */
          {
            char
              tuple[MaxTextExtent];

            GetColorTuple(&svg_info->image_info->background_color,8,True,True,
                          tuple);

            MVGPrintf(svg_info->file,"push graphic-context\n");
            MVGPrintf(svg_info->file,"fill %s\n", tuple);
            MVGPrintf(svg_info->file,"rectangle 0,0 %g,%g\n",
                      svg_info->view_box.width,svg_info->view_box.height);
            MVGPrintf(svg_info->file,"pop graphic-context\n");
          }
          sx=(double) svg_info->width/svg_info->view_box.width;
          sy=(double) svg_info->height/svg_info->view_box.height;
          MVGPrintf(svg_info->file,"affine %g 0 0 %g %g %g\n",sx,sy,
            -sx*svg_info->view_box.x,-sy*svg_info->view_box.y);
        }
    }
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  )");
  LiberateMemory((void **) &units);
  if (color != (char *) NULL)
    LiberateMemory((void **) &color);
}

static void SVGEndElement(void *context,const xmlChar *name)
{
  SVGInfo
    *svg_info;

  /*
    Called when the end of an element has been detected.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.endElement(%.1024s)",name);
  svg_info=(SVGInfo *) context;
  switch (*name)
  {
    case 'C':
    case 'c':
    {
      if (LocaleCompare((char *) name,"circle") == 0)
        {
          MVGPrintf(svg_info->file,"circle %g,%g %g,%g\n",svg_info->element.cx,
            svg_info->element.cy,svg_info->element.cx,svg_info->element.cy+
            svg_info->element.minor);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"clipPath") == 0)
        {
          MVGPrintf(svg_info->file,"pop clip-path\n");
          break;
        }
      break;
    }
    case 'D':
    case 'd':
    {
      if (LocaleCompare((char *) name,"defs") == 0)
        {
          MVGPrintf(svg_info->file,"pop defs\n");
          break;
        }
      if (LocaleCompare((char *) name,"desc") == 0)
        {
          register char
            *p;

          Strip(svg_info->text);
          if (*svg_info->text == '\0')
            break;
          (void) fputc('#',svg_info->file);
          for (p=svg_info->text; *p != '\0'; p++)
          {
            (void) fputc(*p,svg_info->file);
            if (*p == '\n')
              (void) fputc('#',svg_info->file);
          }
          (void) fputc('\n',svg_info->file);
          *svg_info->text='\0';
          break;
        }
      break;
    }
    case 'E':
    case 'e':
    {
      if (LocaleCompare((char *) name,"ellipse") == 0)
        {
          double
            angle;

          angle=svg_info->element.angle;
          MVGPrintf(svg_info->file,"ellipse %g,%g %g,%g 0,360\n",
            svg_info->element.cx,svg_info->element.cy,
            angle == 0.0 ? svg_info->element.major : svg_info->element.minor,
            angle == 0.0 ? svg_info->element.minor : svg_info->element.major);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      break;
    }
    case 'G':
    case 'g':
    {
      if (LocaleCompare((char *) name,"g") == 0)
        {
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      break;
    }
    case 'I':
    case 'i':
    {
      if (LocaleCompare((char *) name,"image") == 0)
        {
          MVGPrintf(svg_info->file,"image Copy %g,%g %g,%g '%s'\n",
            svg_info->bounds.x,svg_info->bounds.y,svg_info->bounds.width,
            svg_info->bounds.height,svg_info->url);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      break;
    }
    case 'L':
    case 'l':
    {
      if (LocaleCompare((char *) name,"line") == 0)
        {
          MVGPrintf(svg_info->file,"line %g,%g %g,%g\n",svg_info->segment.x1,
            svg_info->segment.y1,svg_info->segment.x2,svg_info->segment.y2);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"linearGradient") == 0)
        {
          MVGPrintf(svg_info->file,"pop gradient\n");
          break;
        }
      break;
    }
    case 'P':
    case 'p':
    {
      if (LocaleCompare((char *) name,"pattern") == 0)
        {
          MVGPrintf(svg_info->file,"pop pattern\n");
          break;
        }
      if (LocaleCompare((char *) name,"path") == 0)
        {
          MVGPrintf(svg_info->file,"path '%s'\n",svg_info->vertices);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"polygon") == 0)
        {
          MVGPrintf(svg_info->file,"polygon %s\n",svg_info->vertices);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"polyline") == 0)
        {
          MVGPrintf(svg_info->file,"polyline %s\n",svg_info->vertices);
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      break;
    }
    case 'R':
    case 'r':
    {
      if (LocaleCompare((char *) name,"radialGradient") == 0)
        {
          MVGPrintf(svg_info->file,"pop gradient\n");
          break;
        }
      if (LocaleCompare((char *) name,"rect") == 0)
        {
          if ((svg_info->radius.x == 0.0) && (svg_info->radius.y == 0.0))
            {
              MVGPrintf(svg_info->file,"rectangle %g,%g %g,%g\n",
                svg_info->bounds.x,svg_info->bounds.y,
                svg_info->bounds.x+svg_info->bounds.width,
                svg_info->bounds.y+svg_info->bounds.height);
              MVGPrintf(svg_info->file,"pop graphic-context\n");
              break;
            }
          if (svg_info->radius.x == 0.0)
            svg_info->radius.x=svg_info->radius.y;
          if (svg_info->radius.y == 0.0)
            svg_info->radius.y=svg_info->radius.x;
          MVGPrintf(svg_info->file,"roundRectangle %g,%g %g,%g %g,%g\n",
            svg_info->bounds.x,svg_info->bounds.y,svg_info->bounds.x+
            svg_info->bounds.width,svg_info->bounds.y+svg_info->bounds.height,
            svg_info->radius.x,svg_info->radius.y);
          svg_info->radius.x=0.0;
          svg_info->radius.y=0.0;
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      break;
    }
    case 'S':
    case 's':
    {
      if (LocaleCompare((char *) name,"stop") == 0)
        {
          MVGPrintf(svg_info->file,"stop-color '%s' %s\n",svg_info->stop_color,
            svg_info->offset);
          break;
        }
      if (LocaleCompare((char *) name,"svg") == 0)
        {
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      break;
    }
    case 'T':
    case 't':
    {
      if (LocaleCompare((char *) name,"text") == 0)
        {
          Strip(svg_info->text);
          if (*svg_info->text != '\0')
            {
              char
                *text;

              text=EscapeString(svg_info->text,'\'');
              MVGPrintf(svg_info->file,"text %g,%g '%s'\n",svg_info->bounds.x,
                svg_info->bounds.y,text);
              LiberateMemory((void **) &text);
              *svg_info->text='\0';
            }
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"tspan") == 0)
        {
          Strip(svg_info->text);
          if (*svg_info->text != '\0')
            {
              DrawInfo
                *draw_info;

              TypeMetric
                metrics;

              char
                *text;

              text=EscapeString(svg_info->text,'\'');
              MVGPrintf(svg_info->file,"text %g,%g '%s'\n",svg_info->bounds.x,
                svg_info->bounds.y,text);
              LiberateMemory((void **) &text);
              draw_info=CloneDrawInfo(svg_info->image_info,(DrawInfo *) NULL);
              draw_info->pointsize=svg_info->pointsize;
              draw_info->text=AllocateString(svg_info->text);
              (void) ConcatenateString(&draw_info->text," ");
              GetTypeMetrics(svg_info->image,draw_info,&metrics);
              svg_info->bounds.x+=metrics.width;
              DestroyDrawInfo(draw_info);
              *svg_info->text='\0';
            }
          MVGPrintf(svg_info->file,"pop graphic-context\n");
          break;
        }
      if (LocaleCompare((char *) name,"title") == 0)
        {
          Strip(svg_info->text);
          if (*svg_info->text == '\0')
            break;
          (void) CloneString(&svg_info->title,svg_info->text);
          *svg_info->text='\0';
          break;
        }
      break;
    }
    default:
      break;
  }
  svg_info->n--;
}

static void SVGCharacters(void *context,const xmlChar *c,int length)
{
  register char
    *p;

  register long
    i;

  SVGInfo
    *svg_info;

  /*
    Receiving some characters from the parser.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.characters(%.1024s,%d)",c,length);
  svg_info=(SVGInfo *) context;
  if (svg_info->text != (char *) NULL)
    ReacquireMemory((void **) &svg_info->text,strlen(svg_info->text)+length+1);
  else
    {
      svg_info->text=(char *) AcquireMemory(length+1);
      if (svg_info->text != (char *) NULL)
        *svg_info->text='\0';
    }
  if (svg_info->text == (char *) NULL)
    return;
  p=svg_info->text+strlen(svg_info->text);
  for (i=0; i < length; i++)
    *p++=c[i];
  *p='\0';
}

static void SVGReference(void *context,const xmlChar *name)
{
  SVGInfo
    *svg_info;

  xmlParserCtxtPtr
    parser;

  /*
    Called when an entity reference is detected.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.reference(%.1024s)",name);
  svg_info=(SVGInfo *) context;
  parser=svg_info->parser;
  if (*name == '#')
    (void) xmlAddChild(parser->node,xmlNewCharRef(svg_info->document,name));
  else
    (void) xmlAddChild(parser->node,xmlNewReference(svg_info->document,name));
}

static void SVGIgnorableWhitespace(void *context,const xmlChar *c,int length)
{
  SVGInfo
    *svg_info;

  /*
    Receiving some ignorable whitespaces from the parser.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.ignorableWhitespace(%.30s, %d)",c,length);
  svg_info=(SVGInfo *) context;
}

static void SVGProcessingInstructions(void *context,const xmlChar *target,
  const xmlChar *data)
{
  SVGInfo
    *svg_info;

  /*
    A processing instruction has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.processingInstruction(%.1024s, %.1024s)",
    target,data);
  svg_info=(SVGInfo *) context;
}

static void SVGComment(void *context,const xmlChar *value)
{
  SVGInfo
    *svg_info;

  /*
    A comment has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.comment(%.1024s)",value);
  svg_info=(SVGInfo *) context;
  if (svg_info->comment != (char *) NULL)
    (void) ConcatenateString(&svg_info->comment,"\n");
  (void) ConcatenateString(&svg_info->comment,(char *) value);
}

static void SVGWarning(void *context,const char *format,...)
{
  char
    reason[MaxTextExtent];

  SVGInfo
    *svg_info;

  va_list
    operands;

  /**
    Display and format a warning messages, gives file, line, position and
    extra parameters.
  */
  va_start(operands,format);
  svg_info=(SVGInfo *) context;
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  SAX.warning: ");
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),format,operands);
#if !defined(HAVE_VSNPRINTF)
  (void) vsprintf(reason,format,operands);
#else
  (void) vsnprintf(reason,MaxTextExtent,format,operands);
#endif
  ThrowException(svg_info->exception,DelegateWarning,reason,(char *) NULL);
  va_end(operands);
}

static void SVGError(void *context,const char *format,...)
{
  char
    reason[MaxTextExtent];

  SVGInfo
    *svg_info;

  va_list
    operands;

  /*
    Display and format a error formats, gives file, line, position and
    extra parameters.
  */
  va_start(operands,format);
  svg_info=(SVGInfo *) context;
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"  SAX.error: ");
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),format,operands);
#if !defined(HAVE_VSNPRINTF)
  (void) vsprintf(reason,format,operands);
#else
  (void) vsnprintf(reason,MaxTextExtent,format,operands);
#endif
  ThrowException(svg_info->exception,CoderError,reason,(char *) NULL);
  va_end(operands);
}

static void SVGCDataBlock(void *context,const xmlChar *value,int length)
{
  SVGInfo
    *svg_info;

   xmlNodePtr
     child;

  xmlParserCtxtPtr
    parser;

  /*
    Called when a pcdata block has been parsed.
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.pcdata(%.1024s, %d)",value,length);
  svg_info=(SVGInfo *) context;
  parser=svg_info->parser;
  child=xmlGetLastChild(parser->node);
  if ((child != (xmlNodePtr) NULL) && (child->type == XML_CDATA_SECTION_NODE))
    {
      xmlTextConcat(child,value,length);
      return;
    }
  (void) xmlAddChild(parser->node,xmlNewCDataBlock(parser->myDoc,value,length));
}

static void SVGExternalSubset(void *context,const xmlChar *name,
  const xmlChar *external_id,const xmlChar *system_id)
{
  SVGInfo
    *svg_info;

  xmlParserCtxt
    parser_context;

  xmlParserCtxtPtr
    parser;

  xmlParserInputPtr
    input;

  /*
    Does this document has an external subset?
  */
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),
    "  SAX.externalSubset(%.1024s, %.1024s, %.1024s)",name,
    (external_id != (const xmlChar *) NULL ? (char *) external_id : "none"),
    (system_id != (const xmlChar *) NULL ? (char *) system_id : "none"));
  svg_info=(SVGInfo *) context;
  parser=svg_info->parser;
  if (((external_id == NULL) && (system_id == NULL)) ||
      (!parser->validate || !parser->wellFormed || !svg_info->document))
    return;
  input=SVGResolveEntity(context,external_id,system_id);
  if (input == NULL)
    return;
  (void) xmlNewDtd(svg_info->document,name,external_id,system_id);
  parser_context=(*parser);
  parser->inputTab=(xmlParserInputPtr *) xmlMalloc(5*sizeof(xmlParserInputPtr));
  if (parser->inputTab == (xmlParserInputPtr *) NULL)
    {
      parser->errNo=XML_ERR_NO_MEMORY;
      parser->input=parser_context.input;
      parser->inputNr=parser_context.inputNr;
      parser->inputMax=parser_context.inputMax;
      parser->inputTab=parser_context.inputTab;
      return;
  }
  parser->inputNr=0;
  parser->inputMax=5;
  parser->input=NULL;
  xmlPushInput(parser,input);
  (void) xmlSwitchEncoding(parser,xmlDetectCharEncoding(parser->input->cur,4));
  if (input->filename == (char *) NULL)
    input->filename=(char *) xmlStrdup(system_id);
  input->line=1;
  input->col=1;
  input->base=parser->input->cur;
  input->cur=parser->input->cur;
  input->free=NULL;
  xmlParseExternalSubset(parser,external_id,system_id);
  while (parser->inputNr > 1)
    (void) xmlPopInput(parser);
  xmlFreeInputStream(parser->input);
  xmlFree(parser->inputTab);
  parser->input=parser_context.input;
  parser->inputNr=parser_context.inputNr;
  parser->inputMax=parser_context.inputMax;
  parser->inputTab=parser_context.inputTab;
}

#if defined(__cplusplus) || defined(c_plusplus)
}
#endif

static Image *ReadSVGImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
  xmlSAXHandler
    SAXModules =
    {
      SVGInternalSubset,
      SVGIsStandalone,
      SVGHasInternalSubset,
      SVGHasExternalSubset,
      SVGResolveEntity,
      SVGGetEntity,
      SVGEntityDeclaration,
      SVGNotationDeclaration,
      SVGAttributeDeclaration,
      SVGElementDeclaration,
      SVGUnparsedEntityDeclaration,
      SVGSetDocumentLocator,
      SVGStartDocument,
      SVGEndDocument,
      SVGStartElement,
      SVGEndElement,
      SVGReference,
      SVGCharacters,
      SVGIgnorableWhitespace,
      SVGProcessingInstructions,
      SVGComment,
      SVGWarning,
      SVGError,
      SVGError,
      SVGGetParameterEntity,
      SVGCDataBlock,
      SVGExternalSubset
    };

  char
    filename[MaxTextExtent],
    geometry[MaxTextExtent],
    message[MaxTextExtent];

  FILE
    *file;

  Image
    *image;

  long
    n;

  SVGInfo
    svg_info;

  unsigned int
    status;

  xmlSAXHandlerPtr
    SAXHandler;

  /*
    Open image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickSignature);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickSignature);
  image=AllocateImage(image_info);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == False)
    ThrowReaderException(FileOpenError,"UnableToOpenFile",image);
  /*
    Open draw file.
  */
  file=AcquireTemporaryFileStream(filename,TextFileIOMode);
  if (file == (FILE *) NULL)
    ThrowReaderTemporaryFileException(filename);
  /*
    Parse SVG file.
  */
  (void) memset(&svg_info,0,sizeof(SVGInfo));
  svg_info.file=file;
  svg_info.exception=exception;
  svg_info.image=image;
  svg_info.image_info=image_info;
  svg_info.text=AllocateString("");
  svg_info.scale=(double *) AcquireMemory(sizeof(double));
  if (svg_info.scale == (double *) NULL)
    {
      (void) fclose(file);
      LiberateTemporaryFile(filename);
      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed",image);
    }
  IdentityAffine(&svg_info.affine);
  svg_info.affine.sx=
    image->x_resolution == 0.0 ? 1.0 : image->x_resolution/72.0;
  svg_info.affine.sy=
    image->y_resolution == 0.0 ? 1.0 : image->y_resolution/72.0;
  svg_info.scale[0]=ExpandAffine(&svg_info.affine);
  svg_info.bounds.width=image->columns;
  svg_info.bounds.height=image->rows;
  if (image_info->size != (char *) NULL)
    (void) CloneString(&svg_info.size,image_info->size);
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"begin SAX");
  (void) xmlSubstituteEntitiesDefault(1);
  SAXHandler=(&SAXModules);
  svg_info.parser=xmlCreatePushParserCtxt(SAXHandler,&svg_info,(char *) NULL,0,
    image->filename);
  while ((n=ReadBlob(image,MaxTextExtent,message)) != 0)
  {
    status=xmlParseChunk(svg_info.parser,message,(int) n,False);
    if (status != 0)
      break;
  }
  (void) xmlParseChunk(svg_info.parser,message,0,True);
  xmlFreeParserCtxt(svg_info.parser);
  (void) LogMagickEvent(CoderEvent,GetMagickModule(),"end SAX");
  xmlCleanupParser();
  (void) fclose(file);
  CloseBlob(image);
  DestroyImage(image);
  image=(Image *) NULL;
  if (!image_info->ping && (exception->severity == UndefinedException))
    {
      ImageInfo
        *clone_info;

      /*
        Draw image.
      */
      clone_info=CloneImageInfo(image_info);
      clone_info->blob=(void *) NULL;
      clone_info->length=0;
      FormatString(geometry,"%ldx%ld",svg_info.width,svg_info.height);
      (void) CloneString(&clone_info->size,geometry);
      FormatString(clone_info->filename,"mvg:%.1024s",filename);
      if (clone_info->density != (char *) NULL)
        LiberateMemory((void **) &clone_info->density);
      image=ReadImage(clone_info,exception);
      DestroyImageInfo(clone_info);
      if (image != (Image *) NULL)
        (void) strncpy(image->filename,image_info->filename,MaxTextExtent-1);
    }
  /*
    Free resources.
  */
  if (svg_info.title != (char *) NULL)
    {
      if (image != (Image *) NULL)
       (void) SetImageAttribute(image,"title",svg_info.title);
      LiberateMemory((void **) &svg_info.title);
    }
  if (svg_info.comment != (char *) NULL)
    {
      if (image != (Image *) NULL)
        (void) SetImageAttribute(image,"comment",svg_info.comment);
      LiberateMemory((void **) &svg_info.comment);
    }
  LiberateTemporaryFile(filename);
  return(image);
}
#endif

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e g i s t e r S V G I m a g e                                           %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Method RegisterSVGImage adds attributes for the SVG image format to
%  the list of supported formats.  The attributes include the image format
%  tag, a method to read and/or write the format, whether the format
%  supports the saving of more than one frame to the same file or blob,
%  whether the format supports native in-memory I/O, and a brief
%  description of the format.
%
%  The format of the RegisterSVGImage method is:
%
%      RegisterSVGImage(void)
%
*/
ModuleExport void RegisterSVGImage(void)
{
  char
    version[MaxTextExtent];

  MagickInfo
    *entry;

  *version='\0';
#if defined(LIBXML_DOTTED_VERSION)
  (void) strncpy(version,"XML " LIBXML_DOTTED_VERSION,MaxTextExtent-1);
#endif
  entry=SetMagickInfo("SVG");
#if defined(HasXML)
  entry->decoder=(DecoderHandler) ReadSVGImage;
#endif
  entry->encoder=(EncoderHandler) WriteSVGImage;
  entry->description=AcquireString("Scalable Vector Gaphics");
  if (*version != '\0')
    entry->version=AcquireString(version);
  entry->module=AcquireString("SVG");
  (void) RegisterMagickInfo(entry);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   U n r e g i s t e r S V G I m a g e                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Method UnregisterSVGImage removes format registrations made by the
%  SVG module from the list of supported formats.
%
%  The format of the UnregisterSVGImage method is:
%
%      UnregisterSVGImage(void)
%
*/
ModuleExport void UnregisterSVGImage(void)
{
  (void) UnregisterMagickInfo("SVG");
  (void) UnregisterMagickInfo("XML");
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   W r i t e S V G I m a g e                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  Method WriteSVGImage writes a image in the SVG - XML based W3C standard
%  format.
%
%  The format of the WriteSVGImage method is:
%
%      unsigned int WriteSVGImage(const ImageInfo *image_info,Image *image)
%
%  A description of each parameter follows.
%
%    o status: Method WriteSVGImage return True if the image is written.
%      False is returned is there is a memory shortage or if the image file
%      fails to write.
%
%    o image_info: Specifies a pointer to a ImageInfo structure.
%
%    o image:  A pointer to an Image structure.
%
%
*/

#if defined(HasAUTOTRACE)
static unsigned int WriteSVGImage(const ImageInfo *image_info,Image *image)
{
  FILE
    *output_file;

  fitting_opts_type
    fit_info;

  image_header_type
    image_header;

  bitmap_type
    bitmap;

  ImageType
    image_type;

  int
    j;

  pixel_outline_list_type
    pixels;

  PixelPacket
    p;

  PixelPacket
    *pixel;

  QuantizeObj
    *quantize_info;

  spline_list_array_type
    splines;

  output_write
    output_writer;

  register long
    i;

  unsigned long
    number_pixels,
    number_planes,
    point,
    thin;

  thin=False;
  quantize_info=(QuantizeObj *) NULL;
  pixel=(&p);
  fit_info=new_fitting_opts();
  output_writer=output_get_handler("svg");
  if (output_writer == NULL)
    ThrowWriterException(DelegateError,"UnableToWriteSVGFormat",image);
  image_type=GetImageType(image);
  number_planes=3;
  if ((image_type == BilevelType) || (image_type == GrayscaleType))
    number_planes=1;
  bitmap.np=number_planes;
  bitmap.dimensions.width=image->columns;
  bitmap.dimensions.height=image->rows;
  number_pixels=image->columns*image->rows;
  bitmap.bitmap=(unsigned char *) AcquireMemory(number_planes*number_pixels);
  if (bitmap.bitmap == (unsigned char *) NULL)
    ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed",image);
  point=0;
  for (j=0; j < image->rows; j++)
  {
    for (i=0; i < image->columns; i++)
    {
      p=GetOnePixel(image,i,j);
      bitmap.bitmap[point++]=pixel->red;
      if (number_planes == 3)
        {
          bitmap.bitmap[point++]=pixel->green;
          bitmap.bitmap[point++]=pixel->blue;
        }
    }
  }
  image_header.width=DIMENSIONS_WIDTH(bitmap.dimensions);
  image_header.height=DIMENSIONS_HEIGHT(bitmap.dimensions);
  if ((fit_info.color_count > 0) && (BITMAP_PLANES(bitmap) == 3))
    quantize(bitmap.bitmap,bitmap.bitmap,DIMENSIONS_WIDTH(bitmap.dimensions),
      DIMENSIONS_HEIGHT(bitmap.dimensions),fit_info.color_count,
      fit_info.bgColor,&quantize_info);
  if (thin)
    thin_image(&bitmap);
  pixels=find_outline_pixels (bitmap);
  LiberateMemory((void **) &(bitmap.bitmap));
  splines=fitted_splines(pixels,&fit_info);
  output_file=fopen(image->filename,"w");
  if (output_file == (FILE *) NULL)
    ThrowWriterException(FileOpenError,"UnableOpenFile",image);
  output_writer(output_file,image->filename,0,0,image_header.width,
    image_header.height,splines);
  return(True);
}
#else
static void AffineToTransform(Image *image,AffineMatrix *affine)
{
  char
    transform[MaxTextExtent];

  if ((fabs(affine->tx) < MagickEpsilon) && (fabs(affine->ty) < MagickEpsilon))
    {
      if ((fabs(affine->rx) < MagickEpsilon) &&
          (fabs(affine->ry) < MagickEpsilon))
        {
          if ((fabs(affine->sx-1.0) < MagickEpsilon) &&
              (fabs(affine->sy-1.0) < MagickEpsilon))
            {
              (void) WriteBlobString(image,"\">\n");
              return;
            }
          FormatString(transform,"\" transform=\"scale(%g,%g)\">\n",
            affine->sx,affine->sy);
          (void) WriteBlobString(image,transform);
          return;
        }
      else
        {
          if ((fabs(affine->sx-affine->sy) < MagickEpsilon) &&
              (fabs(affine->rx+affine->ry) < MagickEpsilon) &&
              (fabs(affine->sx*affine->sx+affine->rx*affine->rx-1.0) <
               2*MagickEpsilon))
            {
              double
                theta;

              theta=(180.0/MagickPI)*atan2(affine->rx,affine->sx);
              FormatString(transform,"\" transform=\"rotate(%g)\">\n",theta);
              (void) WriteBlobString(image,transform);
              return;
            }
        }
    }
  else
    {
      if ((fabs(affine->sx-1.0) < MagickEpsilon) &&
          (fabs(affine->rx) < MagickEpsilon) &&
          (fabs(affine->ry) < MagickEpsilon) &&
          (fabs(affine->sy-1.0) < MagickEpsilon))
        {
          FormatString(transform,"\" transform=\"translate(%g,%g)\">\n",
            affine->tx,affine->ty);
          (void) WriteBlobString(image,transform);
          return;
        }
    }
  FormatString(transform,"\" transform=\"matrix(%g %g %g %g %g %g)\">\n",
    affine->sx,affine->rx,affine->ry,affine->sy,affine->tx,affine->ty);
  (void) WriteBlobString(image,transform);
}

static inline unsigned int IsPoint(const char *point)
{
  char
    *p;

  (void) strtol(point,&p,10);
  return(p != point);
}

static unsigned int WriteSVGImage(const ImageInfo *image_info,Image *image)
{
#define BezierQuantum  200

  AffineMatrix
    affine;

  char
    keyword[MaxTextExtent],
    message[MaxTextExtent],
    name[MaxTextExtent],
    *p,
    *q,
    *token,
    type[MaxTextExtent];

  const ImageAttribute
    *attribute;

  int
    n;

  long
    j;

  PointInfo
    point;

  PrimitiveInfo
    *primitive_info;

  PrimitiveType
    primitive_type;

  register long
    x;

  register long
    i;

  size_t
    length;

  SVGInfo
    svg_info;

  unsigned int
    active,
    status;

  unsigned long
    number_points;

  /*
    Open output image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  attribute=GetImageAttribute(image,"[MVG]");
  if ((attribute == (ImageAttribute *) NULL) ||
      (attribute->value == (char *) NULL))
    ThrowWriterException(CoderError,"NoImageVectorGraphics",image);
  status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
  if (status == False)
    ThrowWriterException(FileOpenError,"UnableToOpenFile",image);
  /*
    Write SVG header.
  */
  (void) WriteBlobString(image,"<?xml version=\"1.0\" standalone=\"no\"?>\n");
  (void) WriteBlobString(image,
    "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 20010904//EN\"\n");
  (void) WriteBlobString(image,
    "  \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n");
  (void) FormatString(message,"<svg width=\"%lu\" height=\"%lu\">\n",
    image->columns,image->rows);
  (void) WriteBlobString(image,message);
  /*
    Allocate primitive info memory.
  */
  number_points=2047;
  primitive_info=(PrimitiveInfo *)
    AcquireMemory(number_points*sizeof(PrimitiveInfo));
  if (primitive_info == (PrimitiveInfo *) NULL)
    ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed",image);
  IdentityAffine(&affine);
  token=AllocateString(attribute->value);
  active=False;
  n=0;
  status=True;
  for (q=attribute->value; *q != '\0'; )
  {
    /*
      Interpret graphic primitive.
    */
    GetToken(q,&q,keyword);
    if (*keyword == '\0')
      break;
    if (*keyword == '#')
      {
        /*
          Comment.
        */
        if (active)
          {
            AffineToTransform(image,&affine);
            active=False;
          }
        (void) WriteBlobString(image,"<desc>");
        (void) WriteBlobString(image,keyword+1);
        for ( ; (*q != '\n') && (*q != '\0'); q++)
          switch (*q)
          {
            case '<': (void) WriteBlobString(image,"&lt;"); break;
            case '>': (void) WriteBlobString(image,"&gt;"); break;
            case '&': (void) WriteBlobString(image,"&amp;"); break;
            default: (void) WriteBlobByte(image,*q); break;
          }
        (void) WriteBlobString(image,"</desc>\n");
        continue;
      }
    primitive_type=UndefinedPrimitive;
    switch (*keyword)
    {
      case ';':
        break;
      case 'a':
      case 'A':
      {
        if (LocaleCompare("affine",keyword) == 0)
          {
            GetToken(q,&q,token);
            affine.sx=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.rx=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.ry=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.sy=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.tx=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.ty=atof(token);
            break;
          }
        if (LocaleCompare("angle",keyword) == 0)
          {
            GetToken(q,&q,token);
            affine.rx=atof(token);
            affine.ry=atof(token);
            break;
          }
        if (LocaleCompare("arc",keyword) == 0)
          {
            primitive_type=ArcPrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'b':
      case 'B':
      {
        if (LocaleCompare("bezier",keyword) == 0)
          {
            primitive_type=BezierPrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'c':
      case 'C':
      {
        if (LocaleCompare("clip-path",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"clip-path:url(#%.1024s);",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("clip-rule",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"clip-rule:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("clip-units",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"clipPathUnits=%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("circle",keyword) == 0)
          {
            primitive_type=CirclePrimitive;
            break;
          }
        if (LocaleCompare("color",keyword) == 0)
          {
            primitive_type=ColorPrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'd':
      case 'D':
      {
        if (LocaleCompare("decorate",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"text-decoration:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        status=False;
        break;
      }
      case 'e':
      case 'E':
      {
        if (LocaleCompare("ellipse",keyword) == 0)
          {
            primitive_type=EllipsePrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'f':
      case 'F':
      {
        if (LocaleCompare("fill",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"fill:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("fill-rule",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"fill-rule:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("fill-opacity",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"fill-opacity:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("font-family",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"font-family:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("font-stretch",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"font-stretch:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("font-style",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"font-style:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("font-size",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"font-size:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("font-weight",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"font-weight:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        status=False;
        break;
      }
      case 'g':
      case 'G':
      {
        if (LocaleCompare("gradient-units",keyword) == 0)
          {
            GetToken(q,&q,token);
            break;
          }
        if (LocaleCompare("text-align",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"text-align %.1024s ",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("text-anchor",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"text-anchor %.1024s ",token);
            (void) WriteBlobString(image,message);
            break;
          }
        status=False;
        break;
      }
      case 'i':
      case 'I':
      {
        if (LocaleCompare("image",keyword) == 0)
          {
            GetToken(q,&q,token);
            primitive_type=ImagePrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'l':
      case 'L':
      {
        if (LocaleCompare("line",keyword) == 0)
          {
            primitive_type=LinePrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'm':
      case 'M':
      {
        if (LocaleCompare("matte",keyword) == 0)
          {
            primitive_type=MattePrimitive;
            break;
          }
        status=False;
        break;
      }
      case 'o':
      case 'O':
      {
        if (LocaleCompare("opacity",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"opacity %.1024s ",token);
            (void) WriteBlobString(image,message);
            break;
          }
        status=False;
        break;
      }
      case 'p':
      case 'P':
      {
        if (LocaleCompare("path",keyword) == 0)
          {
            primitive_type=PathPrimitive;
            break;
          }
        if (LocaleCompare("point",keyword) == 0)
          {
            primitive_type=PointPrimitive;
            break;
          }
        if (LocaleCompare("polyline",keyword) == 0)
          {
            primitive_type=PolylinePrimitive;
            break;
          }
        if (LocaleCompare("polygon",keyword) == 0)
          {
            primitive_type=PolygonPrimitive;
            break;
          }
        if (LocaleCompare("pop",keyword) == 0)
          {
            GetToken(q,&q,token);
            if (LocaleCompare("clip-path",token) == 0)
              {
                (void) WriteBlobString(image,"</clipPath>\n");
                break;
              }
            if (LocaleCompare("defs",token) == 0)
              {
                (void) WriteBlobString(image,"</defs>\n");
                break;
              }
            if (LocaleCompare("gradient",token) == 0)
              {
                FormatString(message,"</%sGradient>\n",type);
                (void) WriteBlobString(image,message);
                break;
              }
            if (LocaleCompare("graphic-context",token) == 0)
              {
                n--;
                if (n < 0)
                  ThrowWriterException(DrawError,
                    "UnbalancedGraphicContextPushPop",image);
                (void) WriteBlobString(image,"</g>\n");
              }
            if (LocaleCompare("pattern",token) == 0)
              {
                (void) WriteBlobString(image,"</pattern>\n");
                break;
              }
            if (LocaleCompare("defs",token) == 0)
            (void) WriteBlobString(image,"</g>\n");
            break;
          }
        if (LocaleCompare("push",keyword) == 0)
          {
            GetToken(q,&q,token);
            if (LocaleCompare("clip-path",token) == 0)
              {
                GetToken(q,&q,token);
                FormatString(message,"<clipPath id=\"%s\">\n",token);
                (void) WriteBlobString(image,message);
                break;
              }
            if (LocaleCompare("defs",token) == 0)
              {
                (void) WriteBlobString(image,"<defs>\n");
                break;
              }
            if (LocaleCompare("gradient",token) == 0)
              {
                GetToken(q,&q,token);
                (void) strncpy(name,token,MaxTextExtent-1);
                GetToken(q,&q,token);
                (void) strncpy(type,token,MaxTextExtent-1);
                GetToken(q,&q,token);
                svg_info.segment.x1=atof(token);
                svg_info.element.cx=atof(token);
                GetToken(q,&q,token);
                if (*token == ',')
                  GetToken(q,&q,token);
                svg_info.segment.y1=atof(token);
                svg_info.element.cy=atof(token);
                GetToken(q,&q,token);
                if (*token == ',')
                  GetToken(q,&q,token);
                svg_info.segment.x2=atof(token);
                svg_info.element.major=atof(token);
                GetToken(q,&q,token);
                if (*token == ',')
                  GetToken(q,&q,token);
                svg_info.segment.y2=atof(token);
                svg_info.element.minor=atof(token);
                FormatString(message,"<%sGradient id=\"%s\" x1=\"%g\" "
                  "y1=\"%g\" x2=\"%g\" y2=\"%g\">\n",type,name,
                  svg_info.segment.x1,svg_info.segment.y1,svg_info.segment.x2,
                  svg_info.segment.y2);
                if (LocaleCompare(type,"radial") == 0)
                  {
                    GetToken(q,&q,token);
                    if (*token == ',')
                      GetToken(q,&q,token);
                    svg_info.element.angle=atof(token);
                    FormatString(message,"<%sGradient id=\"%s\" cx=\"%g\" "
                      "cy=\"%g\" r=\"%g\" fx=\"%g\" fy=\"%g\">\n",type,name,
                      svg_info.element.cx,svg_info.element.cy,
                      svg_info.element.angle,svg_info.element.major,
                      svg_info.element.minor);
                  }
                (void) WriteBlobString(image,message);
                break;
              }
            if (LocaleCompare("graphic-context",token) == 0)
              {
                n++;
                if (active)
                  {
                    AffineToTransform(image,&affine);
                    active=False;
                  }
                (void) WriteBlobString(image,"<g style=\"");
                active=True;
              }
            if (LocaleCompare("pattern",token) == 0)
              {
                GetToken(q,&q,token);
                (void) strncpy(name,token,MaxTextExtent-1);
                GetToken(q,&q,token);
                svg_info.bounds.x=atof(token);
                GetToken(q,&q,token);
                if (*token == ',')
                  GetToken(q,&q,token);
                svg_info.bounds.y=atof(token);
                GetToken(q,&q,token);
                if (*token == ',')
                  GetToken(q,&q,token);
                svg_info.bounds.width=atof(token);
                GetToken(q,&q,token);
                if (*token == ',')
                  GetToken(q,&q,token);
                svg_info.bounds.height=atof(token);
                FormatString(message,"<pattern id=\"%s\" x=\"%g\" y=\"%g\" "
                  "width=\"%g\" height=\"%g\">\n",name,svg_info.bounds.x,
                  svg_info.bounds.y,svg_info.bounds.width,
                  svg_info.bounds.height);
                (void) WriteBlobString(image,message);
                break;
              }
            break;
          }
        status=False;
        break;
      }
      case 'r':
      case 'R':
      {
        if (LocaleCompare("rectangle",keyword) == 0)
          {
            primitive_type=RectanglePrimitive;
            break;
          }
        if (LocaleCompare("roundRectangle",keyword) == 0)
          {
            primitive_type=RoundRectanglePrimitive;
            break;
          }
        if (LocaleCompare("rotate",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"rotate(%.1024s) ",token);
            (void) WriteBlobString(image,message);
            break;
          }
        status=False;
        break;
      }
      case 's':
      case 'S':
      {
        if (LocaleCompare("scale",keyword) == 0)
          {
            GetToken(q,&q,token);
            affine.sx=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.sy=atof(token);
            break;
          }
        if (LocaleCompare("skewX",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"skewX(%.1024s) ",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("skewY",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"skewY(%.1024s) ",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stop-color",keyword) == 0)
          {
            char
              color[MaxTextExtent];

            GetToken(q,&q,token);
            (void) strncpy(color,token,MaxTextExtent-1);
            GetToken(q,&q,token);
            FormatString(message,
              "  <stop offset=\"%s\" stop-color=\"%s\" />\n",token,color);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-antialias",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-antialias:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-dasharray",keyword) == 0)
          {
            if (IsPoint(q))
              {
                long
                  k;

                p=q;
                GetToken(p,&p,token);
                for (k=0; IsPoint(token); k++)
                  GetToken(p,&p,token);
                (void) WriteBlobString(image,"stroke-dasharray:");
                for (j=0; j < k; j++)
                {
                  GetToken(q,&q,token);
                  FormatString(message,"%.1024s ",token);
                  (void) WriteBlobString(image,message);
                }
                (void) WriteBlobString(image,";");
                break;
              }
            GetToken(q,&q,token);
            FormatString(message,"stroke-dasharray:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-dashoffset",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-dashoffset:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-linecap",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-linecap:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-linejoin",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-linejoin:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-miterlimit",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-miterlimit:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-opacity",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-opacity:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("stroke-width",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"stroke-width:%.1024s;",token);
            (void) WriteBlobString(image,message);
            continue;
          }
        status=False;
        break;
      }
      case 't':
      case 'T':
      {
        if (LocaleCompare("text",keyword) == 0)
          {
            primitive_type=TextPrimitive;
            break;
          }
        if (LocaleCompare("text-antialias",keyword) == 0)
          {
            GetToken(q,&q,token);
            FormatString(message,"text-antialias:%.1024s;",token);
            (void) WriteBlobString(image,message);
            break;
          }
        if (LocaleCompare("tspan",keyword) == 0)
          {
            primitive_type=TextPrimitive;
            break;
          }
        if (LocaleCompare("translate",keyword) == 0)
          {
            GetToken(q,&q,token);
            affine.tx=atof(token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            affine.ty=atof(token);
            break;
          }
        status=False;
        break;
      }
      case 'v':
      case 'V':
      {
        if (LocaleCompare("viewbox",keyword) == 0)
          {
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            GetToken(q,&q,token);
            if (*token == ',')
              GetToken(q,&q,token);
            GetToken(q,&q,token);
            break;
          }
        status=False;
        break;
      }
      default:
      {
        status=False;
        break;
      }
    }
    if (status == False)
      break;
    if (primitive_type == UndefinedPrimitive)
      continue;
    /*
      Parse the primitive attributes.
    */
    i=0;
    j=0;
    for (x=0; *q != '\0'; x++)
    {
      /*
        Define points.
      */
      if (!IsPoint(q))
        break;
      GetToken(q,&q,token);
      point.x=atof(token);
      GetToken(q,&q,token);
      if (*token == ',')
        GetToken(q,&q,token);
      point.y=atof(token);
      GetToken(q,(char **) NULL,token);
      if (*token == ',')
        GetToken(q,&q,token);
      primitive_info[i].primitive=primitive_type;
      primitive_info[i].point=point;
      primitive_info[i].coordinates=0;
      primitive_info[i].method=FloodfillMethod;
      i++;
      if (i < (long) (number_points-6*BezierQuantum-360))
        continue;
      number_points+=6*BezierQuantum+360;
      ReacquireMemory((void **) &primitive_info,
        number_points*sizeof(PrimitiveInfo));
      if (primitive_info == (PrimitiveInfo *) NULL)
        {
          ThrowException(&image->exception,ResourceLimitError,
            "MemoryAllocationFailed","UnableToDrawImage");
          break;
        }
    }
    primitive_info[j].primitive=primitive_type;
    primitive_info[j].coordinates=x;
    primitive_info[j].method=FloodfillMethod;
    primitive_info[j].text=(char *) NULL;
    if (active)
      {
        AffineToTransform(image,&affine);
        active=False;
      }
    active=False;
    switch (primitive_type)
    {
      case PointPrimitive:
      default:
      {
        if (primitive_info[j].coordinates != 1)
          {
            status=False;
            break;
          }
        break;
      }
      case LinePrimitive:
      {
        if (primitive_info[j].coordinates != 2)
          {
            status=False;
            break;
          }
        (void) FormatString(message,
          "  <line x1=\"%g\" y1=\"%g\" x2=\"%g\" y2=\"%g\"/>\n",
          primitive_info[j].point.x,primitive_info[j].point.y,
          primitive_info[j+1].point.x,primitive_info[j+1].point.y);
        (void) WriteBlobString(image,message);
        break;
      }
      case RectanglePrimitive:
      {
        if (primitive_info[j].coordinates != 2)
          {
            status=False;
            break;
          }
        (void) FormatString(message,
          "  <rect x=\"%g\" y=\"%g\" width=\"%g\" height=\"%g\"/>\n",
          primitive_info[j].point.x,primitive_info[j].point.y,
          primitive_info[j+1].point.x-primitive_info[j].point.x,
          primitive_info[j+1].point.y-primitive_info[j].point.y);
        (void) WriteBlobString(image,message);
        break;
      }
      case RoundRectanglePrimitive:
      {
        if (primitive_info[j].coordinates != 3)
          {
            status=False;
            break;
          }
        (void) FormatString(message,"  <rect x=\"%g\" y=\"%g\" "
          "width=\"%g\" height=\"%g\" rx=\"%g\" ry=\"%g\"/>\n",
          primitive_info[j].point.x,primitive_info[j].point.y,
          primitive_info[j+1].point.x-primitive_info[j].point.x,
          primitive_info[j+1].point.y-primitive_info[j].point.y,
          primitive_info[j+2].point.x,primitive_info[j+2].point.y);
        (void) WriteBlobString(image,message);
        break;
      }
      case ArcPrimitive:
      {
        if (primitive_info[j].coordinates != 3)
          {
            status=False;
            break;
          }
        break;
      }
      case EllipsePrimitive:
      {
        if (primitive_info[j].coordinates != 3)
          {
            status=False;
            break;
          }
        (void) FormatString(message,
          "  <ellipse cx=\"%g\" cy=\"%g\" rx=\"%g\" ry=\"%g\"/>\n",
          primitive_info[j].point.x,primitive_info[j].point.y,
          primitive_info[j+1].point.x,primitive_info[j+1].point.y);
        (void) WriteBlobString(image,message);
        break;
      }
      case CirclePrimitive:
      {
        double
          alpha,
          beta;

        if (primitive_info[j].coordinates != 2)
          {
            status=False;
            break;
          }
        alpha=primitive_info[j+1].point.x-primitive_info[j].point.x;
        beta=primitive_info[j+1].point.y-primitive_info[j].point.y;
        (void) FormatString(message,"  <circle cx=\"%g\" cy=\"%g\" r=\"%g\"/>\n",
          primitive_info[j].point.x,primitive_info[j].point.y,
          sqrt(alpha*alpha+beta*beta));
        (void) WriteBlobString(image,message);
        break;
      }
      case PolylinePrimitive:
      {
        if (primitive_info[j].coordinates < 2)
          {
            status=False;
            break;
          }
        (void) strcpy(message,"  <polyline points=\"");
        (void) WriteBlobString(image,message);
        length=strlen(message);
        for ( ; j < i; j++)
        {
          FormatString(message,"%g,%g ",primitive_info[j].point.x,
            primitive_info[j].point.y);
          length+=strlen(message);
          if (length >= 80)
            {
              (void) WriteBlobString(image,"\n    ");
              length=strlen(message)+5;
            }
          (void) WriteBlobString(image,message);
        }
        (void) WriteBlobString(image,"\"/>\n");
        break;
      }
      case PolygonPrimitive:
      {
        if (primitive_info[j].coordinates < 3)
          {
            status=False;
            break;
          }
        primitive_info[i]=primitive_info[j];
        primitive_info[i].coordinates=0;
        primitive_info[j].coordinates++;
        i++;
        (void) strcpy(message,"  <polygon points=\"");
        (void) WriteBlobString(image,message);
        length=strlen(message);
        for ( ; j < i; j++)
        {
          FormatString(message,"%g,%g ",primitive_info[j].point.x,
            primitive_info[j].point.y);
          length+=strlen(message);
          if (length >= 80)
            {
              (void) WriteBlobString(image,"\n    ");
              length=strlen(message)+5;
            }
          (void) WriteBlobString(image,message);
        }
        (void) WriteBlobString(image,"\"/>\n");
        break;
      }
      case BezierPrimitive:
      {
        if (primitive_info[j].coordinates < 3)
          {
            status=False;
            break;
          }
        break;
      }
      case PathPrimitive:
      {
        int
          number_attributes;

        GetToken(q,&q,token);
        number_attributes=1;
        for (p=token; *p != '\0'; p++)
          if (isalpha((int) *p))
            number_attributes++;
        if (i > (long) (number_points-6*BezierQuantum*number_attributes-1))
          {
            number_points+=6*BezierQuantum*number_attributes;
            ReacquireMemory((void **) &primitive_info,
              number_points*sizeof(PrimitiveInfo));
            if (primitive_info == (PrimitiveInfo *) NULL)
              {
                ThrowException(&image->exception,ResourceLimitError,
                  "MemoryAllocationFailed","UnableToDrawImage");
                break;
              }
          }
        (void) WriteBlobString(image,"  <path d=\"");
        (void) WriteBlobString(image,token);
        (void) WriteBlobString(image,"\"/>\n");
        break;
      }
      case ColorPrimitive:
      case MattePrimitive:
      {
        if (primitive_info[j].coordinates != 1)
          {
            status=False;
            break;
          }
        GetToken(q,&q,token);
        if (LocaleCompare("point",token) == 0)
          primitive_info[j].method=PointMethod;
        if (LocaleCompare("replace",token) == 0)
          primitive_info[j].method=ReplaceMethod;
        if (LocaleCompare("floodfill",token) == 0)
          primitive_info[j].method=FloodfillMethod;
        if (LocaleCompare("filltoborder",token) == 0)
          primitive_info[j].method=FillToBorderMethod;
        if (LocaleCompare("reset",token) == 0)
          primitive_info[j].method=ResetMethod;
        break;
      }
      case TextPrimitive:
      {
        register char
          *p;

        if (primitive_info[j].coordinates != 1)
          {
            status=False;
            break;
          }
        GetToken(q,&q,token);
        (void) FormatString(message,"  <text x=\"%g\" y=\"%g\">",
          primitive_info[j].point.x,primitive_info[j].point.y);
        (void) WriteBlobString(image,message);
        for (p=token; *p != '\0'; p++)
          switch (*p)
          {
            case '<': (void) WriteBlobString(image,"&lt;"); break;
            case '>': (void) WriteBlobString(image,"&gt;"); break;
            case '&': (void) WriteBlobString(image,"&amp;"); break;
            default: (void) WriteBlobByte(image,*p); break;
          }
        (void) WriteBlobString(image,"</text>\n");
        break;
      }
      case ImagePrimitive:
      {
        if (primitive_info[j].coordinates != 2)
          {
            status=False;
            break;
          }
        GetToken(q,&q,token);
        (void) FormatString(message,"  <image x=\"%g\" y=\"%g\" "
          "width=\"%g\" height=\"%g\" xlink:href=\"%.1024s\"/>\n",
          primitive_info[j].point.x,primitive_info[j].point.y,
          primitive_info[j+1].point.x,primitive_info[j+1].point.y,token);
        (void) WriteBlobString(image,message);
        break;
      }
    }
    if (primitive_info == (PrimitiveInfo *) NULL)
      break;
    primitive_info[i].primitive=UndefinedPrimitive;
    if (status == False)
      break;
  }
  (void) WriteBlobString(image,"</svg>\n");
  /*
    Free resources.
  */
  LiberateMemory((void **) &token);
  if (primitive_info != (PrimitiveInfo *) NULL)
    LiberateMemory((void **) &primitive_info);
  CloseBlob(image);
  return(status);
}
#endif
