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/*
* testHTML.c : a small tester program for HTML input.
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*/

#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;

static 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 */
};

static 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)
{
    unsigned char output[40];
    int inlen = len, outlen = 30;

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

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

/**
* referenceDebug:
* @ctxt: An XML parser context
* @name: The entity name
*
* called when an entity reference is detected.
*/
static void
referenceDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *name)
{
    fprintf(stdout, "SAX.reference(%s)\n", name);
}

/**
* ignorableWhitespaceDebug:
* @ctxt: An XML parser context
* @ch: a xmlChar string
* @start: the first char in the string
* @len: the number of xmlChar
*
* receiving some ignorable whitespaces from the parser.
* Question: how much at a time ???
*/
static void
ignorableWhitespaceDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *ch, int len)
{
    char output[40];
    int i;

    for (i = 0;(i<len) && (i < 30);i++)
output[i] = ch[i];
    output[i] = 0;

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

/**
* processingInstructionDebug:
* @ctxt: An XML parser context
* @target: the target name
* @data: the PI data's
* @len: the number of xmlChar
*
* A processing instruction has been parsed.
*/
static void
processingInstructionDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *target,
                      const xmlChar *data)
{
    fprintf(stdout, "SAX.processingInstruction(%s, %s)\n",
            (char *) target, (char *) data);
}

/**
* commentDebug:
* @ctxt: An XML parser context
* @value: the comment content
*
* A comment has been parsed.
*/
static void
commentDebug(void *ctx ATTRIBUTE_UNUSED, const xmlChar *value)
{
    fprintf(stdout, "SAX.comment(%s)\n", value);
}

/**
* warningDebug:
* @ctxt: An XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a warning messages, gives file, line, position and
* extra parameters.
*/
static void XMLCDECL
warningDebug(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...)
{
    va_list args;

    va_start(args, msg);
    fprintf(stdout, "SAX.warning: ");
    vfprintf(stdout, msg, args);
    va_end(args);
}

/**
* errorDebug:
* @ctxt: An XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a error messages, gives file, line, position and
* extra parameters.
*/
static void XMLCDECL
errorDebug(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...)
{
    va_list args;

    va_start(args, msg);
    fprintf(stdout, "SAX.error: ");
    vfprintf(stdout, msg, args);
    va_end(args);
}

/**
* fatalErrorDebug:
* @ctxt: An XML parser context
* @msg: the message to display/transmit
* @...: extra parameters for the message display
*
* Display and format a fatalError messages, gives file, line, position and
* extra parameters.
*/
static void XMLCDECL
fatalErrorDebug(void *ctx ATTRIBUTE_UNUSED, const char *msg, ...)
{
    va_list args;

    va_start(args, msg);
    fprintf(stdout, "SAX.fatalError: ");
    vfprintf(stdout, msg, args);
    va_end(args);
}

static xmlSAXHandler debugSAXHandlerStruct = {
    internalSubsetDebug,
    isStandaloneDebug,
    hasInternalSubsetDebug,
    hasExternalSubsetDebug,
    resolveEntityDebug,
    getEntityDebug,
    entityDeclDebug,
    notationDeclDebug,
    attributeDeclDebug,
    elementDeclDebug,
    unparsedEntityDeclDebug,
    setDocumentLocatorDebug,
    startDocumentDebug,
    endDocumentDebug,
    startElementDebug,
    endElementDebug,
    referenceDebug,
    charactersDebug,
    ignorableWhitespaceDebug,
    processingInstructionDebug,
    commentDebug,
    warningDebug,
    errorDebug,
    fatalErrorDebug,
    getParameterEntityDebug,
    cdataDebug,
    NULL,
    1,
    NULL,
    NULL,
    NULL,
    NULL
};

xmlSAXHandlerPtr debugSAXHandler = &debugSAXHandlerStruct;
/************************************************************************
* *
* Debug *
* *
************************************************************************/

static void
parseSAXFile(char *filename) {
    htmlDocPtr doc = NULL;

    /*
* Empty callbacks for checking
*/
#ifdef LIBXML_PUSH_ENABLED
    if (push) {
FILE *f;

#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
f = fopen(filename, "rb");
#else
f = fopen(filename, "r");
#endif
if (f != NULL) {
int res, size = 3;
char chars[4096];
htmlParserCtxtPtr ctxt;

/* if (repeat) */
size = 4096;
res = fread(chars, 1, 4, f);
if (res > 0) {
ctxt = htmlCreatePushParserCtxt(emptySAXHandler, NULL,
chars, res, filename, XML_CHAR_ENCODING_NONE);
while ((res = fread(chars, 1, size, f)) > 0) {
htmlParseChunk(ctxt, chars, res, 0);
}
htmlParseChunk(ctxt, chars, 0, 1);
doc = ctxt->myDoc;
htmlFreeParserCtxt(ctxt);
}
if (doc != NULL) {
fprintf(stdout, "htmlSAXParseFile returned non-NULL\n");
xmlFreeDoc(doc);
}
fclose(f);
}
if (!noout) {
#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
f = fopen(filename, "rb");
#else
f = fopen(filename, "r");
#endif
if (f != NULL) {
int res, size = 3;
char chars[4096];
htmlParserCtxtPtr ctxt;

/* if (repeat) */
size = 4096;
res = fread(chars, 1, 4, f);
if (res > 0) {
ctxt = htmlCreatePushParserCtxt(debugSAXHandler, NULL,
chars, res, filename, XML_CHAR_ENCODING_NONE);
while ((res = fread(chars, 1, size, f)) > 0) {
htmlParseChunk(ctxt, chars, res, 0);
}
htmlParseChunk(ctxt, chars, 0, 1);
doc = ctxt->myDoc;
htmlFreeParserCtxt(ctxt);
}
if (doc != NULL) {
fprintf(stdout, "htmlSAXParseFile returned non-NULL\n");
xmlFreeDoc(doc);
}
fclose(f);
}
}
    } else {
#endif /* LIBXML_PUSH_ENABLED */
doc = htmlSAXParseFile(filename, NULL, emptySAXHandler, NULL);
if (doc != NULL) {
fprintf(stdout, "htmlSAXParseFile returned non-NULL\n");
xmlFreeDoc(doc);
}

if (!noout) {
/*
* Debug callback
*/
doc = htmlSAXParseFile(filename, NULL, debugSAXHandler, NULL);
if (doc != NULL) {
fprintf(stdout, "htmlSAXParseFile returned non-NULL\n");
xmlFreeDoc(doc);
}
}
#ifdef LIBXML_PUSH_ENABLED
    }
#endif /* LIBXML_PUSH_ENABLED */
}

static void
parseAndPrintFile(char *filename) {
    htmlDocPtr doc = NULL;

    /*
* build an HTML tree from a string;
*/
#ifdef LIBXML_PUSH_ENABLED
    if (push) {
FILE *f;

#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
f = fopen(filename, "rb");
#else
f = fopen(filename, "r");
#endif
if (f != NULL) {
int res, size = 3;
char chars[4096];
htmlParserCtxtPtr ctxt;

/* if (repeat) */
size = 4096;
res = fread(chars, 1, 4, f);
if (res > 0) {
ctxt = htmlCreatePushParserCtxt(NULL, NULL,
chars, res, filename, XML_CHAR_ENCODING_NONE);
while ((res = fread(chars, 1, size, f)) > 0) {
htmlParseChunk(ctxt, chars, res, 0);
}
htmlParseChunk(ctxt, chars, 0, 1);
doc = ctxt->myDoc;
htmlFreeParserCtxt(ctxt);
}
fclose(f);
}
    } else {
doc = htmlReadFile(filename, NULL, options);
    }
#else
doc = htmlReadFile(filename,NULL,options);
#endif
    if (doc == NULL) {
        xmlGenericError(xmlGenericErrorContext,
"Could not parse %s\n", filename);
    }

#ifdef LIBXML_TREE_ENABLED
    /*
* test intermediate copy if needed.
*/
    if (copy) {
        htmlDocPtr tmp;

        tmp = doc;
doc = xmlCopyDoc(doc, 1);
xmlFreeDoc(tmp);
    }
#endif

#ifdef LIBXML_OUTPUT_ENABLED
    /*
* print it.
*/
    if (!noout) {
#ifdef LIBXML_DEBUG_ENABLED
if (!debug) {
if (encoding)
htmlSaveFileEnc("-", doc, encoding);
else
htmlDocDump(stdout, doc);
} else
xmlDebugDumpDocument(stdout, doc);
#else
if (encoding)
htmlSaveFileEnc("-", doc, encoding);
else
htmlDocDump(stdout, doc);
#endif
    }
#endif /* LIBXML_OUTPUT_ENABLED */

    /*
* free it.
*/
    xmlFreeDoc(doc);
}

int main(int argc, char **argv) {
    int i, count;
    int files = 0;

    for (i = 1; i < argc ; i++) {
#ifdef LIBXML_DEBUG_ENABLED
if ((!strcmp(argv[i], "-debug")) || (!strcmp(argv[i], "--debug")))
debug++;
else
#endif
if ((!strcmp(argv[i], "-copy")) || (!strcmp(argv[i], "--copy")))
copy++;
#ifdef LIBXML_PUSH_ENABLED
else if ((!strcmp(argv[i], "-push")) || (!strcmp(argv[i], "--push")))
push++;
#endif /* LIBXML_PUSH_ENABLED */
else if ((!strcmp(argv[i], "-sax")) || (!strcmp(argv[i], "--sax")))
sax++;
else if ((!strcmp(argv[i], "-noout")) || (!strcmp(argv[i], "--noout")))
noout++;
else if ((!strcmp(argv[i], "-repeat")) ||
(!strcmp(argv[i], "--repeat")))
repeat++;
else if ((!strcmp(argv[i], "-encode")) ||
(!strcmp(argv[i], "--encode"))) {
i++;
encoding = argv[i];
        }
    }
    for (i = 1; i < argc ; i++) {
if ((!strcmp(argv[i], "-encode")) ||
(!strcmp(argv[i], "--encode"))) {
i++;
continue;
        }
if (argv[i][0] != '-') {
if (repeat) {
for (count = 0;count < 100 * repeat;count++) {
if (sax)
parseSAXFile(argv[i]);
else
parseAndPrintFile(argv[i]);
}
} else {
if (sax)
parseSAXFile(argv[i]);
else
parseAndPrintFile(argv[i]);
}
files ++;
}
    }
    if (files == 0) {
printf("Usage : %s [--debug] [--copy] [--copy] HTMLfiles ...\n",
argv[0]);
printf("\tParse the HTML files and output the result of the parsing\n");
#ifdef LIBXML_DEBUG_ENABLED
printf("\t--debug : dump a debug tree of the in-memory document\n");
#endif
printf("\t--copy : used to test the internal copy implementation\n");
printf("\t--sax : debug the sequence of SAX callbacks\n");
printf("\t--repeat : parse the file 100 times, for timing\n");
printf("\t--noout : do not print the result\n");
#ifdef LIBXML_PUSH_ENABLED
printf("\t--push : use the push mode parser\n");
#endif /* LIBXML_PUSH_ENABLED */
printf("\t--encode encoding : output in the given encoding\n");
    }
    xmlCleanupParser();
    xmlMemoryDump();

    return(0);
}
#else /* !LIBXML_HTML_ENABLED */
#include <stdio.h>
int main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
    printf("%s : HTML support not compiled in\n", argv[0]);
    return(0);
}
#endif
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