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/** * 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 <stdio.h> #include <string.h> #include <libxml/encoding.h> #include <libxml/xmlwriter.h> #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 this 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 "<Test>"); 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 "<Test 2>"); 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 this 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 "<Test>"); 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 "<Test 2>"); 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 this 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 "<Test>"); 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 "<Test 2>"); 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 "<Test>"); 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 "<Test 2>"); 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

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