/*
 * xmlsave.c: Implemetation of the document serializer
 *
 * See Copyright for the status of this software.
 *
 * daniel@veillard.com
 */

#define IN_LIBXML
#include "libxml.h"

#include <string.h>
#include <libxml/xmlmemory.h>
#include <libxml/parserInternals.h>
#include <libxml/tree.h>
#include <libxml/xmlsave.h>

#define MAX_INDENT 60

/************************************************************************
 *									*
 *			XHTML detection					*
 *									*
 ************************************************************************/
#define XHTML_STRICT_PUBLIC_ID BAD_CAST \
   "-//W3C//DTD XHTML 1.0 Strict//EN"
#define XHTML_STRICT_SYSTEM_ID BAD_CAST \
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
#define XHTML_FRAME_PUBLIC_ID BAD_CAST \
   "-//W3C//DTD XHTML 1.0 Frameset//EN"
#define XHTML_FRAME_SYSTEM_ID BAD_CAST \
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd"
#define XHTML_TRANS_PUBLIC_ID BAD_CAST \
   "-//W3C//DTD XHTML 1.0 Transitional//EN"
#define XHTML_TRANS_SYSTEM_ID BAD_CAST \
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"

#define XHTML_NS_NAME BAD_CAST "http://www.w3.org/1999/xhtml"
/**
 * xmlIsXHTML:
 * @systemID:  the system identifier
 * @publicID:  the public identifier
 *
 * Try to find if the document correspond to an XHTML DTD
 *
 * Returns 1 if true, 0 if not and -1 in case of error
 */
int
xmlIsXHTML(const xmlChar *systemID, const xmlChar *publicID) {
    if ((systemID == NULL) && (publicID == NULL))
	return(-1);
    if (publicID != NULL) {
	if (xmlStrEqual(publicID, XHTML_STRICT_PUBLIC_ID)) return(1);
	if (xmlStrEqual(publicID, XHTML_FRAME_PUBLIC_ID)) return(1);
	if (xmlStrEqual(publicID, XHTML_TRANS_PUBLIC_ID)) return(1);
    }
    if (systemID != NULL) {
	if (xmlStrEqual(systemID, XHTML_STRICT_SYSTEM_ID)) return(1);
	if (xmlStrEqual(systemID, XHTML_FRAME_SYSTEM_ID)) return(1);
	if (xmlStrEqual(systemID, XHTML_TRANS_SYSTEM_ID)) return(1);
    }
    return(0);
}

#define bottom_xmlsave
#include "elfgcchack.h"