https://github.com/cran/XML
Tip revision: 97e01fc523251d7713bfc0c38030180579506447 authored by Duncan Temple Lang on 27 November 2000, 00:00:00 UTC
version 0.7-2
version 0.7-2
Tip revision: 97e01fc
ExpatParse.c
/* only compile this if LIBEXPAT is defined. */
#ifdef LIBEXPAT
/*
File that provides the entry point for an event driven XML parser
that performs callbacks to the different user-level functions in
the closure passed to it.
* See Copyright for the license status of this software.
*/
#include "EventParse.h"
#include "Utils.h" /* For the findFunction and invokeFunction. */
#include "RSCommon.h"
#include "ExpatParse.h"
void
RS_XML(initParser)(XML_Parser parser, RS_XMLParserData *parserData)
{
XML_SetUserData(parser, parserData);
XML_SetElementHandler(parser, RS_XML(startElement), RS_XML(endElement));
XML_SetCommentHandler(parser, RS_XML(commentHandler));
XML_SetExternalEntityRefHandler(parser, RS_XML(externalEntityHandler));
XML_SetUnparsedEntityDeclHandler(parser, RS_XML(entityDeclarationHandler));
XML_SetCharacterDataHandler(parser, RS_XML(textHandler));
XML_SetProcessingInstructionHandler(parser, RS_XML(processingInstructionHandler));
XML_SetCdataSectionHandler(parser, RS_XML(startCdataSectionHandler), RS_XML(endCdataSectionHandler));
XML_SetBase(parser, parserData->fileName);
XML_SetNotStandaloneHandler(parser, RS_XML(notStandAloneHandler));
}
int RS_XML(parse)(FILE *file, USER_OBJECT_ handlers)
{
RS_XMLParserData *parserData;
parserData = RS_XML(createParserData)(handlers);
return(RS_XML(parseWithParserData)(file, parserData));
}
int RS_XML(parseWithParserData)(FILE *file, RS_XMLParserData *parserData)
{
char buf[BUFSIZ];
int done;
XML_Parser parser = XML_ParserCreate(NULL);
RS_XML(initParser)(parser, parserData);
do {
size_t len = fread(buf, 1, sizeof(buf), file);
done = len < sizeof(buf);
if (!XML_Parse(parser, buf, len, done)) {
fprintf(stderr,
"%s at line %d\n",
XML_ErrorString(XML_GetErrorCode(parser)),
XML_GetCurrentLineNumber(parser));
return 1;
}
} while (!done);
XML_ParserFree(parser);
return 0;
}
int
RS_XML(parseBufferWithParserData)(char *buf, RS_XMLParserData *parserData)
{
int status;
XML_Parser parser = XML_ParserCreate(NULL);
RS_XML(initParser)(parser, parserData);
status = XML_Parse(parser, buf, strlen(buf), 1);
if(status == 0) {
const char *msg = XML_ErrorString(XML_GetErrorCode(parser));
PROBLEM "XML Parser Error: %s", msg
ERROR;
}
return(status);
}
int
RS_XML(externalEntityHandler)(XML_Parser parser, const XML_Char *context,
const XML_Char *base, const XML_Char *systemId,
const XML_Char *publicId)
{
RS_XMLParserData *parserData = (RS_XMLParserData*)XML_GetUserData(parser);
USER_OBJECT_ opArgs;
int i, num;
const XML_Char *xml_args[4];
num = sizeof(xml_args)/sizeof(xml_args[0]);
xml_args[0] = context; xml_args[1] = base;xml_args[2] = systemId; xml_args[3] = publicId;
opArgs = NEW_LIST(num);
for(i =0;i < num; i++) {
RECURSIVE_DATA(opArgs)[i] = NEW_CHARACTER(1);
CHARACTER_DATA(RECURSIVE_DATA(opArgs)[i])[0] = COPY_TO_USER_STRING(xml_args[i] ? xml_args[i] : "");
}
RS_XML(callUserFunction)("externalEntity", NULL, parserData, opArgs);
return(1); /* ok to go on */
}
#endif /* only if LIBEXPAT is defined */