The examples are stored per section depending on the main focus of the example:

• XPath :

  • xpath1.c: Evaluate XPath expression and prints result node set.

• xmlWriter :

  • testWriter.c: use various APIs for the xmlWriter

• Parsing :

  • parse1.c: Parse an XML file to a tree and free it
  • parse2.c: Parse and validate an XML file to a tree and free the result

• Tree :

  • tree1.c: Navigates a tree to print element names
  • tree2.c: Creates a tree

Parsing Examples

parse1.c: Parse an XML file to a tree and free it

Demonstrate the use of xmlReadFile() to read an XML file into a tree and and xmlFreeDoc() to free the resulting tree

Includes:

• <libxml/tree.h>
• <libxml/parser.h>

Uses:

• line 24: Type xmlDocPtr from tree.h
• line 26: Function xmlReadFile from parser.h
• line 31: Function xmlFreeDoc from tree.h
• line 45: Macro LIBXML_TEST_VERSION from xmlversion.h
• line 50: Function xmlCleanupParser from parser.h

Usage:

parse1 test1.xml

Author: Daniel Veillard

parse2.c: Parse and validate an XML file to a tree and free the result

Create a parser context for an XML file, then parse and validate the file, creating a tree, check the validation result and xmlFreeDoc() to free the resulting tree.

Includes:

• <libxml/tree.h>
• <libxml/parser.h>

Uses:

• line 25: Type xmlParserCtxtPtr from tree.h
• line 26: Type xmlDocPtr from tree.h
• line 29: Function xmlNewParserCtxt from parser.h
• line 35: Function xmlCtxtReadFile from parser.h
• line 44: Function xmlFreeDoc from tree.h
• line 47: Function xmlFreeParserCtxt from parser.h
• line 61: Macro LIBXML_TEST_VERSION from xmlversion.h
• line 66: Function xmlCleanupParser from parser.h

Usage:

parse2 test2.xml

Author: Daniel Veillard

Tree Examples

tree1.c: Navigates a tree to print element names

Parse a file to a tree, use xmlDocGetRootElement() to get the root element, then walk the document and print all the element name in document order.

Includes:

• <libxml/tree.h>
• <libxml/parser.h>

Uses:

• line 65: Macro LIBXML_TEST_VERSION from xmlversion.h
• line 65: Function xmlParseFile from parser.h
• line 72: Function xmlDocGetRootElement from tree.h
• line 77: Function xmlFreeDoc from tree.h
• line 83: Function xmlCleanupParser from parser.h

Usage:

tree1 filename_or_URL

Author: Dodji Seketeli

tree2.c: Creates a tree

Shows how to create document, nodes and dump it to stdout or file.

Includes:

• <libxml/tree.h>
• <libxml/parser.h>

Uses:

• line 32: Macro LIBXML_TEST_VERSION from xmlversion.h
• line 37: Function xmlNewDoc from tree.h
• line 39: Function xmlDocSetRootElement from tree.h
• line 44: Function xmlCreateIntSubset from tree.h
• line 72: Function xmlNewNode from tree.h
• line 73: Function xmlNewText from tree.h
• line 76: Function xmlAddChild from tree.h
• line 86: Function xmlNewChild from tree.h
• line 87: Function xmlNewProp from tree.h
• line 94: Function xmlSaveFormatFileEnc from tree.h
• line 97: Function xmlFreeDoc from tree.h
• line 103: Function xmlCleanupParser from parser.h

Usage:

tree2 <filename> -Default output: stdout

Author: Lucas Brasilino <brasilino@recife.pe.gov.br>

XPath Examples

xpath1.c: Evaluate XPath expression and prints result node set.

Shows how to evaluate XPath expression and register known namespaces in XPath context.

Includes:

• <libxml/xpath.h>
• <libxml/parser.h>
• <libxml/xpathInternals.h>
• <libxml/tree.h>

Uses:

• line 35: Function xmlInitParser from parser.h
• line 39: Macro LIBXML_TEST_VERSION from xmlversion.h
• line 45: Function xmlCleanupParser from parser.h
• line 78: Type xmlDocPtr from tree.h
• line 79: Type xmlXPathContextPtr from xpath.h
• line 80: Type xmlXPathObjectPtr from xpath.h
• line 86: Function xmlParseFile from parser.h
• line 93: Function xmlXPathNewContext from xpath.h
• line 109: Function xmlXPathEvalExpression from xpath.h
• line 121: Function xmlXPathFreeObject from xpath.h
• line 122: Function xmlXPathFreeContext from xpath.h
• line 123: Function xmlFreeDoc from tree.h
• line 148: Function xmlStrdup from parser.h
• line 172: Function xmlStrchr from parser.h
• line 178: Function xmlXPathRegisterNs from xpathInternals.h
• line 198: Type xmlNodePtr from tree.h
• line 210: Type xmlNsPtr from tree.h

Usage:

xpath1 <xml-file> <xpath-expr> [<known-ns-list>]

Author: Aleksey Sanin

xmlWriter Examples

testWriter.c: use various APIs for the xmlWriter

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.

Includes:

• <libxml/encoding.h>
• <libxml/xmlwriter.h>

Uses:

• line 58: Function xmlNewTextWriterFilename from xmlwriter.h
• line 320: Type xmlBufferPtr from tree.h
• line 325: Function xmlBufferCreate from tree.h
• line 333: Function xmlNewTextWriterMemory from xmlwriter.h
• line 603: Function xmlNewTextWriterDoc from xmlwriter.h
• line 846: Type xmlTextWriterPtr from xmlwriter.h
• line 847: Type xmlDocPtr from tree.h
• line 848: Type xmlNodePtr from tree.h
• line 852: Macro XML_DEFAULT_VERSION from parser.h
• line 852: Function xmlNewDoc from tree.h
• line 861: Function xmlNewDocNode from tree.h
• line 868: Function xmlDocSetRootElement from tree.h
• line 871: Function xmlNewTextWriterTree from xmlwriter.h
• line 880: Function xmlTextWriterStartDocument from xmlwriter.h
• line 890: Function xmlTextWriterWriteComment from xmlwriter.h
• line 916: Function xmlTextWriterWriteAttribute from xmlwriter.h
• line 925: Function xmlTextWriterWriteFormatComment from xmlwriter.h
• line 1037: Function xmlTextWriterWriteFormatElement from xmlwriter.h
• line 1060: Function xmlTextWriterStartElement from xmlwriter.h
• line 1067: Function xmlTextWriterWriteElement from xmlwriter.h
• line 1075: Function xmlTextWriterEndElement from xmlwriter.h
• line 1085: Function xmlTextWriterEndDocument from xmlwriter.h
• line 1091: Function xmlFreeTextWriter from xmlwriter.h
• line 1093: Function xmlSaveFileEnc from tree.h
• line 1095: Function xmlFreeDoc from tree.h
• line 1115: Type xmlCharEncodingHandlerPtr from encoding.h
• line 1120: Function xmlFindCharEncodingHandler from encoding.h

Usage:

testWriter

Author: Alfred Mickautsch

Daniel Veillard