You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
123 lines
3.1 KiB
123 lines
3.1 KiB
/**
|
|
* section: xmlReader
|
|
* synopsis: Parse multiple XML files reusing an xmlReader
|
|
* purpose: Demonstrate the use of xmlReaderForFile() and
|
|
* xmlReaderNewFile to parse XML files while reusing the reader object
|
|
* and parser context. (Note that the XMLReader functions require
|
|
* libxml2 version later than 2.6.)
|
|
* usage: reader4 <filename> [ filename ... ]
|
|
* test: reader4 test1.xml test2.xml test3.xml > reader4.tmp && diff reader4.tmp $(srcdir)/reader4.res
|
|
* author: Graham Bennett
|
|
* copy: see Copyright for the status of this software.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <libxml/xmlreader.h>
|
|
|
|
#ifdef LIBXML_READER_ENABLED
|
|
|
|
static void processDoc(xmlTextReaderPtr readerPtr) {
|
|
int ret;
|
|
xmlDocPtr docPtr;
|
|
const xmlChar *URL;
|
|
|
|
ret = xmlTextReaderRead(readerPtr);
|
|
while (ret == 1) {
|
|
ret = xmlTextReaderRead(readerPtr);
|
|
}
|
|
|
|
/*
|
|
* One can obtain the document pointer to get interesting
|
|
* information about the document like the URL, but one must also
|
|
* be sure to clean it up at the end (see below).
|
|
*/
|
|
docPtr = xmlTextReaderCurrentDoc(readerPtr);
|
|
if (NULL == docPtr) {
|
|
fprintf(stderr, "failed to obtain document\n");
|
|
return;
|
|
}
|
|
|
|
URL = docPtr->URL;
|
|
if (NULL == URL) {
|
|
fprintf(stderr, "Failed to obtain URL\n");
|
|
}
|
|
|
|
if (ret != 0) {
|
|
fprintf(stderr, "%s: Failed to parse\n", URL);
|
|
return;
|
|
}
|
|
|
|
printf("%s: Processed ok\n", (const char *)URL);
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
xmlTextReaderPtr readerPtr;
|
|
int i;
|
|
xmlDocPtr docPtr;
|
|
|
|
if (argc < 2)
|
|
return(1);
|
|
|
|
/*
|
|
* this initialises the library and check potential ABI mismatches
|
|
* between the version it was compiled for and the actual shared
|
|
* library used.
|
|
*/
|
|
LIBXML_TEST_VERSION
|
|
|
|
/*
|
|
* Create a new reader for the first file and process the
|
|
* document.
|
|
*/
|
|
readerPtr = xmlReaderForFile(argv[1], NULL, 0);
|
|
if (NULL == readerPtr) {
|
|
fprintf(stderr, "%s: failed to create reader\n", argv[1]);
|
|
return(1);
|
|
}
|
|
processDoc(readerPtr);
|
|
|
|
/*
|
|
* The reader can be reused for subsequent files.
|
|
*/
|
|
for (i=2; i < argc; ++i) {
|
|
xmlReaderNewFile(readerPtr, argv[i], NULL, 0);
|
|
if (NULL == readerPtr) {
|
|
fprintf(stderr, "%s: failed to create reader\n", argv[i]);
|
|
return(1);
|
|
}
|
|
processDoc(readerPtr);
|
|
}
|
|
|
|
/*
|
|
* Since we've called xmlTextReaderCurrentDoc, we now have to
|
|
* clean up after ourselves. We only have to do this the last
|
|
* time, because xmlReaderNewFile calls xmlCtxtReset which takes
|
|
* care of it.
|
|
*/
|
|
docPtr = xmlTextReaderCurrentDoc(readerPtr);
|
|
if (docPtr != NULL)
|
|
xmlFreeDoc(docPtr);
|
|
|
|
/*
|
|
* Clean up the reader.
|
|
*/
|
|
xmlFreeTextReader(readerPtr);
|
|
|
|
/*
|
|
* Cleanup function for the XML library.
|
|
*/
|
|
xmlCleanupParser();
|
|
/*
|
|
* this is to debug memory for regression tests
|
|
*/
|
|
xmlMemoryDump();
|
|
return(0);
|
|
}
|
|
|
|
#else
|
|
int main(void) {
|
|
fprintf(stderr, "xmlReader support not compiled in\n");
|
|
exit(1);
|
|
}
|
|
#endif
|