/usr/share/doc/libxml2-devel/examples
Edit: /usr/share/doc/libxml2-devel/examples/testWriter.c (38503B)
/**
* section: xmlWriter
* synopsis: use various APIs for the xmlWriter
* purpose: tests a number of APIs for the xmlWriter, especially
* the various methods to write to a filename, to a memory
* buffer, to a new document, or to a subtree. It shows how to
* do encoding string conversions too. The resulting
* documents are then serialized.
* usage: testWriter
* test: testWriter && for i in 1 2 3 4 ; do diff $(srcdir)/writer.xml writer$$i.tmp || break ; done
* author: Alfred Mickautsch
* copy: see Copyright for the status of this software.
*/
#include
#include
#include
#include
#if defined(LIBXML_WRITER_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
#define MY_ENCODING "ISO-8859-1"
void testXmlwriterFilename(const char *uri);
void testXmlwriterMemory(const char *file);
void testXmlwriterDoc(const char *file);
void testXmlwriterTree(const char *file);
xmlChar *ConvertInput(const char *in, const char *encoding);
int
main(void)
{
/*
* this initialize the library and check potential ABI mismatches
* between the version it was compiled for and the actual shared
* library used.
*/
LIBXML_TEST_VERSION
/* first, the file version */
testXmlwriterFilename("writer1.tmp");
/* next, the memory version */
testXmlwriterMemory("writer2.tmp");
/* next, the DOM version */
testXmlwriterDoc("writer3.tmp");
/* next, the tree version */
testXmlwriterTree("writer4.tmp");
/*
* Cleanup function for the XML library.
*/
xmlCleanupParser();
/*
* this is to debug memory for regression tests
*/
xmlMemoryDump();
return 0;
}
/**
* testXmlwriterFilename:
* @uri: the output URI
*
* test the xmlWriter interface when writing to a new file
*/
void
testXmlwriterFilename(const char *uri)
{
int rc;
xmlTextWriterPtr writer;
xmlChar *tmp;
/* Create a new XmlWriter for uri, with no compression. */
writer = xmlNewTextWriterFilename(uri, 0);
if (writer == NULL) {
printf("testXmlwriterFilename: Error creating the xml writer\n");
return;
}
/* Start the document with the xml default for the version,
* encoding ISO 8859-1 and the default for the standalone
* declaration. */
rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartDocument\n");
return;
}
/* Start an element named "EXAMPLE". Since thist is the first
* element, this will be the root element of the document. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "EXAMPLE");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Write a comment as child of EXAMPLE.
* Please observe, that the input to the xmlTextWriter functions
* HAS to be in UTF-8, even if the output XML is encoded
* in iso-8859-1 */
tmp = ConvertInput("This is a comment with special chars: <\xE4\xF6\xFC>",
MY_ENCODING);
rc = xmlTextWriterWriteComment(writer, tmp);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "ORDER" as child of EXAMPLE. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Add an attribute with name "version" and value "1.0" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
BAD_CAST "1.0");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Add an attribute with name "xml:lang" and value "de" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
BAD_CAST "de");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Write a comment as child of ORDER */
tmp = ConvertInput("<\xE4\xF6\xFC>", MY_ENCODING);
rc = xmlTextWriterWriteFormatComment(writer,
"This is another comment with special chars: %s",
tmp);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteFormatComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "HEADER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "X_ORDER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
"%010d", 53535);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "CUSTOMER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
"%d", 1010);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "NAME_1" as child of HEADER. */
tmp = ConvertInput("M\xFCller", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1", tmp);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Write an element named "NAME_2" as child of HEADER. */
tmp = ConvertInput("J\xF6rg", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2", tmp);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Close the element named HEADER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRIES" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
10);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
20);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Close the element named ENTRIES. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "FOOTER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "TEXT" as child of FOOTER. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
BAD_CAST "This is a text.");
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
return;
}
/* Close the element named FOOTER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
return;
}
/* Here we could close the elements ORDER and EXAMPLE using the
* function xmlTextWriterEndElement, but since we do not want to
* write any other elements, we simply call xmlTextWriterEndDocument,
* which will do all the work. */
rc = xmlTextWriterEndDocument(writer);
if (rc < 0) {
printf
("testXmlwriterFilename: Error at xmlTextWriterEndDocument\n");
return;
}
xmlFreeTextWriter(writer);
}
/**
* testXmlwriterMemory:
* @file: the output file
*
* test the xmlWriter interface when writing to memory
*/
void
testXmlwriterMemory(const char *file)
{
int rc;
xmlTextWriterPtr writer;
xmlBufferPtr buf;
xmlChar *tmp;
FILE *fp;
/* Create a new XML buffer, to which the XML document will be
* written */
buf = xmlBufferCreate();
if (buf == NULL) {
printf("testXmlwriterMemory: Error creating the xml buffer\n");
return;
}
/* Create a new XmlWriter for memory, with no compression.
* Remark: there is no compression for this kind of xmlTextWriter */
writer = xmlNewTextWriterMemory(buf, 0);
if (writer == NULL) {
printf("testXmlwriterMemory: Error creating the xml writer\n");
return;
}
/* Start the document with the xml default for the version,
* encoding ISO 8859-1 and the default for the standalone
* declaration. */
rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartDocument\n");
return;
}
/* Start an element named "EXAMPLE". Since thist is the first
* element, this will be the root element of the document. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "EXAMPLE");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Write a comment as child of EXAMPLE.
* Please observe, that the input to the xmlTextWriter functions
* HAS to be in UTF-8, even if the output XML is encoded
* in iso-8859-1 */
tmp = ConvertInput("This is a comment with special chars: <\xE4\xF6\xFC>",
MY_ENCODING);
rc = xmlTextWriterWriteComment(writer, tmp);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "ORDER" as child of EXAMPLE. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Add an attribute with name "version" and value "1.0" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
BAD_CAST "1.0");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Add an attribute with name "xml:lang" and value "de" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
BAD_CAST "de");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Write a comment as child of ORDER */
tmp = ConvertInput("<\xE4\xF6\xFC>", MY_ENCODING);
rc = xmlTextWriterWriteFormatComment(writer,
"This is another comment with special chars: %s",
tmp);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteFormatComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "HEADER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "X_ORDER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
"%010d", 53535);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "CUSTOMER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
"%d", 1010);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "NAME_1" as child of HEADER. */
tmp = ConvertInput("M\xFCller", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1", tmp);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Write an element named "NAME_2" as child of HEADER. */
tmp = ConvertInput("J\xF6rg", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2", tmp);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Close the element named HEADER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRIES" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
10);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
20);
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
return;
}
/* Close the element named ENTRIES. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "FOOTER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "TEXT" as child of FOOTER. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
BAD_CAST "This is a text.");
if (rc < 0) {
printf
("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
return;
}
/* Close the element named FOOTER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
return;
}
/* Here we could close the elements ORDER and EXAMPLE using the
* function xmlTextWriterEndElement, but since we do not want to
* write any other elements, we simply call xmlTextWriterEndDocument,
* which will do all the work. */
rc = xmlTextWriterEndDocument(writer);
if (rc < 0) {
printf("testXmlwriterMemory: Error at xmlTextWriterEndDocument\n");
return;
}
xmlFreeTextWriter(writer);
fp = fopen(file, "w");
if (fp == NULL) {
printf("testXmlwriterMemory: Error at fopen\n");
return;
}
fprintf(fp, "%s", (const char *) buf->content);
fclose(fp);
xmlBufferFree(buf);
}
/**
* testXmlwriterDoc:
* @file: the output file
*
* test the xmlWriter interface when creating a new document
*/
void
testXmlwriterDoc(const char *file)
{
int rc;
xmlTextWriterPtr writer;
xmlChar *tmp;
xmlDocPtr doc;
/* Create a new XmlWriter for DOM, with no compression. */
writer = xmlNewTextWriterDoc(&doc, 0);
if (writer == NULL) {
printf("testXmlwriterDoc: Error creating the xml writer\n");
return;
}
/* Start the document with the xml default for the version,
* encoding ISO 8859-1 and the default for the standalone
* declaration. */
rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartDocument\n");
return;
}
/* Start an element named "EXAMPLE". Since thist is the first
* element, this will be the root element of the document. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "EXAMPLE");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Write a comment as child of EXAMPLE.
* Please observe, that the input to the xmlTextWriter functions
* HAS to be in UTF-8, even if the output XML is encoded
* in iso-8859-1 */
tmp = ConvertInput("This is a comment with special chars: <\xE4\xF6\xFC>",
MY_ENCODING);
rc = xmlTextWriterWriteComment(writer, tmp);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "ORDER" as child of EXAMPLE. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Add an attribute with name "version" and value "1.0" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
BAD_CAST "1.0");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Add an attribute with name "xml:lang" and value "de" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
BAD_CAST "de");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Write a comment as child of ORDER */
tmp = ConvertInput("<\xE4\xF6\xFC>", MY_ENCODING);
rc = xmlTextWriterWriteFormatComment(writer,
"This is another comment with special chars: %s",
tmp);
if (rc < 0) {
printf
("testXmlwriterDoc: Error at xmlTextWriterWriteFormatComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "HEADER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "X_ORDER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
"%010d", 53535);
if (rc < 0) {
printf
("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "CUSTOMER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
"%d", 1010);
if (rc < 0) {
printf
("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "NAME_1" as child of HEADER. */
tmp = ConvertInput("M\xFCller", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1", tmp);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Write an element named "NAME_2" as child of HEADER. */
tmp = ConvertInput("J\xF6rg", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2", tmp);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Close the element named HEADER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRIES" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
10);
if (rc < 0) {
printf
("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
20);
if (rc < 0) {
printf
("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
return;
}
/* Close the element named ENTRIES. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "FOOTER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "TEXT" as child of FOOTER. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
BAD_CAST "This is a text.");
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
return;
}
/* Close the element named FOOTER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
return;
}
/* Here we could close the elements ORDER and EXAMPLE using the
* function xmlTextWriterEndElement, but since we do not want to
* write any other elements, we simply call xmlTextWriterEndDocument,
* which will do all the work. */
rc = xmlTextWriterEndDocument(writer);
if (rc < 0) {
printf("testXmlwriterDoc: Error at xmlTextWriterEndDocument\n");
return;
}
xmlFreeTextWriter(writer);
xmlSaveFileEnc(file, doc, MY_ENCODING);
xmlFreeDoc(doc);
}
/**
* testXmlwriterTree:
* @file: the output file
*
* test the xmlWriter interface when writing to a subtree
*/
void
testXmlwriterTree(const char *file)
{
int rc;
xmlTextWriterPtr writer;
xmlDocPtr doc;
xmlNodePtr node;
xmlChar *tmp;
/* Create a new XML DOM tree, to which the XML document will be
* written */
doc = xmlNewDoc(BAD_CAST XML_DEFAULT_VERSION);
if (doc == NULL) {
printf
("testXmlwriterTree: Error creating the xml document tree\n");
return;
}
/* Create a new XML node, to which the XML document will be
* appended */
node = xmlNewDocNode(doc, NULL, BAD_CAST "EXAMPLE", NULL);
if (node == NULL) {
printf("testXmlwriterTree: Error creating the xml node\n");
return;
}
/* Make ELEMENT the root node of the tree */
xmlDocSetRootElement(doc, node);
/* Create a new XmlWriter for DOM tree, with no compression. */
writer = xmlNewTextWriterTree(doc, node, 0);
if (writer == NULL) {
printf("testXmlwriterTree: Error creating the xml writer\n");
return;
}
/* Start the document with the xml default for the version,
* encoding ISO 8859-1 and the default for the standalone
* declaration. */
rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartDocument\n");
return;
}
/* Write a comment as child of EXAMPLE.
* Please observe, that the input to the xmlTextWriter functions
* HAS to be in UTF-8, even if the output XML is encoded
* in iso-8859-1 */
tmp = ConvertInput("This is a comment with special chars: <\xE4\xF6\xFC>",
MY_ENCODING);
rc = xmlTextWriterWriteComment(writer, tmp);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterWriteComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "ORDER" as child of EXAMPLE. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
return;
}
/* Add an attribute with name "version" and value "1.0" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
BAD_CAST "1.0");
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Add an attribute with name "xml:lang" and value "de" to ORDER. */
rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
BAD_CAST "de");
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteAttribute\n");
return;
}
/* Write a comment as child of ORDER */
tmp = ConvertInput("<\xE4\xF6\xFC>", MY_ENCODING);
rc = xmlTextWriterWriteFormatComment(writer,
"This is another comment with special chars: %s",
tmp);
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteFormatComment\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Start an element named "HEADER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "X_ORDER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
"%010d", 53535);
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "CUSTOMER_ID" as child of HEADER. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
"%d", 1010);
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Write an element named "NAME_1" as child of HEADER. */
tmp = ConvertInput("M\xFCller", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1", tmp);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Write an element named "NAME_2" as child of HEADER. */
tmp = ConvertInput("J\xF6rg", MY_ENCODING);
rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2", tmp);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
return;
}
if (tmp != NULL) xmlFree(tmp);
/* Close the element named HEADER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRIES" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
10);
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "ENTRY" as child of ENTRIES. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "ARTICLE" as child of ENTRY. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
BAD_CAST "");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
return;
}
/* Write an element named "ENTRY_NO" as child of ENTRY. */
rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
20);
if (rc < 0) {
printf
("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
return;
}
/* Close the element named ENTRY. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
return;
}
/* Close the element named ENTRIES. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
return;
}
/* Start an element named "FOOTER" as child of ORDER. */
rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
return;
}
/* Write an element named "TEXT" as child of FOOTER. */
rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
BAD_CAST "This is a text.");
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
return;
}
/* Close the element named FOOTER. */
rc = xmlTextWriterEndElement(writer);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
return;
}
/* Here we could close the elements ORDER and EXAMPLE using the
* function xmlTextWriterEndElement, but since we do not want to
* write any other elements, we simply call xmlTextWriterEndDocument,
* which will do all the work. */
rc = xmlTextWriterEndDocument(writer);
if (rc < 0) {
printf("testXmlwriterTree: Error at xmlTextWriterEndDocument\n");
return;
}
xmlFreeTextWriter(writer);
xmlSaveFileEnc(file, doc, MY_ENCODING);
xmlFreeDoc(doc);
}
/**
* ConvertInput:
* @in: string in a given encoding
* @encoding: the encoding used
*
* Converts @in into UTF-8 for processing with libxml2 APIs
*
* Returns the converted UTF-8 string, or NULL in case of error.
*/
xmlChar *
ConvertInput(const char *in, const char *encoding)
{
xmlChar *out;
int ret;
int size;
int out_size;
int temp;
xmlCharEncodingHandlerPtr handler;
if (in == 0)
return 0;
handler = xmlFindCharEncodingHandler(encoding);
if (!handler) {
printf("ConvertInput: no encoding handler found for '%s'\n",
encoding ? encoding : "");
return 0;
}
size = (int) strlen(in) + 1;
out_size = size * 2 - 1;
out = (unsigned char *) xmlMalloc((size_t) out_size);
if (out != 0) {
temp = size - 1;
ret = handler->input(out, &out_size, (const xmlChar *) in, &temp);
if ((ret < 0) || (temp - size + 1)) {
if (ret < 0) {
printf("ConvertInput: conversion wasn't successful.\n");
} else {
printf
("ConvertInput: conversion wasn't successful. converted: %i octets.\n",
temp);
}
xmlFree(out);
out = 0;
} else {
out = (unsigned char *) xmlRealloc(out, out_size + 1);
out[out_size] = 0; /*null terminating out */
}
} else {
printf("ConvertInput: no mem\n");
}
return out;
}
#else
int main(void) {
fprintf(stderr, "Writer or output support not compiled in\n");
exit(1);
}
#endif