testhtml.c

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/*
 * testHTML.c : a small tester program for HTML input.
 *
 * See Copyright for the status of this software.
 *
 * [e-mail]
 */

#include "libxml.h"

#ifdef LIBXML_HTML_ENABLED

#include <string.h>
#include <stdarg.h>


#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif

#include <libxml/xmlmemory.h>
#include <libxml/HTMLparser.h>
#include <libxml/HTMLtree.h>
#include <libxml/debugXML.h>
#include <libxml/xmlerror.h>
#include <libxml/globals.h>

#ifdef LIBXML_DEBUG_ENABLED
static int debug = 0;
#endif
static int copy = 0;
static int sax = 0;
static int repeat = 0;
static int noout = 0;
#ifdef LIBXML_PUSH_ENABLED
static int push = 0;
#endif /* LIBXML_PUSH_ENABLED */
static char *encoding = NULL;
static int options = 0;

xmlSAXHandler emptySAXHandlerStruct = {
    NULL, /* internalSubset */
    NULL, /* isStandalone */
    NULL, /* hasInternalSubset */
    NULL, /* hasExternalSubset */
    NULL, /* resolveEntity */
    NULL, /* getEntity */
    NULL, /* entityDecl */
    NULL, /* notationDecl */
    NULL, /* attributeDecl */
    NULL, /* elementDecl */
    NULL, /* unparsedEntityDecl */
    NULL, /* setDocumentLocator */
    NULL, /* startDocument */
    NULL, /* endDocument */
    NULL, /* startElement */
    NULL, /* endElement */
    NULL, /* reference */
    NULL, /* characters */
    NULL, /* ignorableWhitespace */
    NULL, /* processingInstruction */
    NULL, /* comment */
    NULL, /* xmlParserWarning */
    NULL, /* xmlParserError */
    NULL, /* xmlParserError */
    NULL, /* getParameterEntity */
    NULL, /* cdataBlock */
    NULL, /* externalSubset */
    1,    /* initialized */
    NULL, /* private */
    NULL, /* startElementNsSAX2Func */
    NULL, /* endElementNsSAX2Func */
    NULL  /* xmlStructuredErrorFunc */
};

xmlSAXHandlerPtr emptySAXHandler = &emptySAXHandlerStruct;
extern xmlSAXHandlerPtr debugSAXHandler;

/************************************************************************
 *									*
 *				Debug Handlers				*
 *									*
 ************************************************************************/

/**
 * isStandaloneDebug:
 * @ctxt:  An XML parser context
 *
 * Is this document tagged standalone ?
 *
 * Returns 1 if true
 */
static int
isStandaloneDebug(void *ctx ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.isStandalone()\n");
    return(0);
}

/**
 * hasInternalSubsetDebug:
 * @ctxt:  An XML parser context
 *
 * Does this document has an internal subset
 *
 * Returns 1 if true
 */
static int
hasInternalSubsetDebug(void *ctx ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.hasInternalSubset()\n");
    return(0);
}

/**
 * hasExternalSubsetDebug:
 * @ctxt:  An XML parser context
 *
 * Does this document has an external subset
 *
 * Returns 1 if true
 */
static int
hasExternalSubsetDebug(void *ctx ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.hasExternalSubset()\n");
    return(0);
}

/**
 * hasInternalSubsetDebug:
 * @ctxt:  An XML parser context
 *
 * Does this document has an internal subset
 */
static void
internalSubsetDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name,
	       const xmlChar *ExternalID, const xmlChar *SystemID)
{
    fprintf(stdout, "SAX.internalSubset(%s,", name);
    if (ExternalID == NULL)
	fprintf(stdout, " ,");
    else
	fprintf(stdout, " %s,", ExternalID);
    if (SystemID == NULL)
	fprintf(stdout, " )\n");
    else
	fprintf(stdout, " %s)\n", SystemID);
}

/**
 * resolveEntityDebug:
 * @ctxt:  An XML parser context
 * @publicId: The public ID of the entity
 * @systemId: The system ID of the entity
 *
 * 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).
 *
 * Returns the xmlParserInputPtr if inlined or NULL for DOM behaviour.
 */
static xmlParserInputPtr
resolveEntityDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *publicId, const xmlChar *systemId)
{
    /* xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx; */

    
    fprintf(stdout, "SAX.resolveEntity(");
    if (publicId != NULL)
	fprintf(stdout, "%s", (char *)publicId);
    else
	fprintf(stdout, " ");
    if (systemId != NULL)
	fprintf(stdout, ", %s)\n", (char *)systemId);
    else
	fprintf(stdout, ", )\n");
/*********
    if (systemId != NULL) {
        return(xmlNewInputFromFile(ctxt, (char *) systemId));
    }
 *********/
    return(NULL);
}

/**
 * getEntityDebug:
 * @ctxt:  An XML parser context
 * @name: The entity name
 *
 * Get an entity by name
 *
 * Returns the xmlParserInputPtr if inlined or NULL for DOM behaviour.
 */
static xmlEntityPtr
getEntityDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name)
{
    fprintf(stdout, "SAX.getEntity(%s)\n", name);
    return(NULL);
}

/**
 * getParameterEntityDebug:
 * @ctxt:  An XML parser context
 * @name: The entity name
 *
 * Get a parameter entity by name
 *
 * Returns the xmlParserInputPtr
 */
static xmlEntityPtr
getParameterEntityDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name)
{
    fprintf(stdout, "SAX.getParameterEntity(%s)\n", name);
    return(NULL);
}


/**
 * entityDeclDebug:
 * @ctxt:  An XML parser context
 * @name:  the entity name 
 * @type:  the entity type 
 * @publicId: The public ID of the entity
 * @systemId: The system ID of the entity
 * @content: the entity value (without processing).
 *
 * An entity definition has been parsed
 */
static void
entityDeclDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name, int type,
          const xmlChar *publicId, const xmlChar *systemId, xmlChar *content)
{
    fprintf(stdout, "SAX.entityDecl(%s, %d, %s, %s, %s)\n",
            name, type, publicId, systemId, content);
}

/**
 * attributeDeclDebug:
 * @ctxt:  An XML parser context
 * @name:  the attribute name 
 * @type:  the attribute type 
 *
 * An attribute definition has been parsed
 */
static void
attributeDeclDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *elem, const xmlChar *name,
              int type, int def, const xmlChar *defaultValue,
	      xmlEnumerationPtr tree ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.attributeDecl(%s, %s, %d, %d, %s, ...)\n",
            elem, name, type, def, defaultValue);
}

/**
 * elementDeclDebug:
 * @ctxt:  An XML parser context
 * @name:  the element name 
 * @type:  the element type 
 * @content: the element value (without processing).
 *
 * An element definition has been parsed
 */
static void
elementDeclDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name, int type,
	    xmlElementContentPtr content ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.elementDecl(%s, %d, ...)\n",
            name, type);
}

/**
 * notationDeclDebug:
 * @ctxt:  An XML parser context
 * @name: The name of the notation
 * @publicId: The public ID of the entity
 * @systemId: The system ID of the entity
 *
 * What to do when a notation declaration has been parsed.
 */
static void
notationDeclDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name,
	     const xmlChar *publicId, const xmlChar *systemId)
{
    fprintf(stdout, "SAX.notationDecl(%s, %s, %s)\n",
            (char *) name, (char *) publicId, (char *) systemId);
}

/**
 * unparsedEntityDeclDebug:
 * @ctxt:  An XML parser context
 * @name: The name of the entity
 * @publicId: The public ID of the entity
 * @systemId: The system ID of the entity
 * @notationName: the name of the notation
 *
 * What to do when an unparsed entity declaration is parsed
 */
static void
unparsedEntityDeclDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name,
		   const xmlChar *publicId, const xmlChar *systemId,
		   const xmlChar *notationName)
{
    fprintf(stdout, "SAX.unparsedEntityDecl(%s, %s, %s, %s)\n",
            (char *) name, (char *) publicId, (char *) systemId,
	    (char *) notationName);
}

/**
 * setDocumentLocatorDebug:
 * @ctxt:  An XML parser context
 * @loc: A SAX Locator
 *
 * Receive the document locator at startup, actually xmlDefaultSAXLocator
 * Everything is available on the context, so this is useless in our case.
 */
static void
setDocumentLocatorDebug(void *ctx ATTRIBUTE_UNUSED, xmlSAXLocatorPtr loc ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.setDocumentLocator()\n");
}

/**
 * startDocumentDebug:
 * @ctxt:  An XML parser context
 *
 * called when the document start being processed.
 */
static void
startDocumentDebug(void *ctx ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.startDocument()\n");
}

/**
 * endDocumentDebug:
 * @ctxt:  An XML parser context
 *
 * called when the document end has been detected.
 */
static void
endDocumentDebug(void *ctx ATTRIBUTE_UNUSED)
{
    fprintf(stdout, "SAX.endDocument()\n");
}

/**
 * startElementDebug:
 * @ctxt:  An XML parser context
 * @name:  The element name
 *
 * called when an opening tag has been processed.
 */
static void
startElementDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name, const xmlChar **atts)
{
    int i;

    fprintf(stdout, "SAX.startElement(%s", (char *) name);
    if (atts != NULL) {
        for (i = 0;(atts[i] != NULL);i++) {
	    fprintf(stdout, ", %s", atts[i++]);
	    if (atts[i] != NULL) {
		unsigned char output[40];
		const unsigned char *att = atts[i];
		int outlen, attlen;
	        fprintf(stdout, "='");
		while ((attlen = strlen((char*)att)) > 0) {
		    outlen = sizeof output - 1;
		    htmlEncodeEntities(output, &outlen, att, &attlen, '\'');
		    output[outlen] = 0;
		    fprintf(stdout, "%s", (char *) output);
		    att += attlen;
		}
		fprintf(stdout, "'");
	    }
	}
    }
    fprintf(stdout, ")\n");
}

/**
 * endElementDebug:
 * @ctxt:  An XML parser context
 * @name:  The element name
 *
 * called when the end of an element has been detected.
 */
static void
endElementDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name)
{
    fprintf(stdout, "SAX.endElement(%s)\n", (char *) name);
}

/**
 * charactersDebug:
 * @ctxt:  An XML parser context
 * @ch:  a xmlChar string
 * @len: the number of xmlChar
 *
 * receiving some chars from the parser.
 * Question: how much at a time ???
 */
static void
charactersDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *ch, int len)
{
    unsigned char output[40];
    int inlen = len, outlen = 30;

    htmlEncodeEntities(output, &outlen, ch, &inlen, 0);
    output[outlen] = 0;

    fprintf(stdout, "SAX.characters(%s, %d)\n", output, len);
}

/**
 * cdataDebug:
 * @ctxt:  An XML parser context
 * @ch:  a xmlChar string
 * @len: the number of xmlChar
 *
 * receiving some cdata chars from the parser.
 * Question: how much at a time ???
 */
static void
cdataDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *ch, int len)
{