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/**
* @file scew_write.c
* @brief SCEW usage example
* @author Aleix Conchillo Flaque <[email protected]>
* @date Sun Mar 30, 2003 12:21
*
* @if copyright
*
* Copyright (C) 2002-2009 Aleix Conchillo Flaque
*
* SCEW is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* SCEW is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* @endif
*
* This example shows the usage of the SCEW API. It will create a new
* XML and write it to a file.
*
* We will create an XML with the follwing structure:
*
* <scew_test>
* <element>element contents</element>
* <element attribute="value"/>
* <element attribute1="value1" attribute2="value2"/>
* <element>
* <sub_element attribute="value"/>
* <sub_element attribute1="value1" attribute2="value2">
* <sub_sub_element attribute1="value1"
* attribute2="new_value2"
* attribute3="value3">
* With accents: à é è í ó ú
* </sub_sub_element>
* </sub_element>
* </element>
* </scew_test>
*/
#include <scew/scew.h>
#if defined(_MSC_VER) && defined(XML_UNICODE_WCHAR_T)
#include <fcntl.h>
#include <io.h>
#endif /* _MSC_VER && XML_UNICODE_WCHAR_T */
#include <stdio.h>
enum { MAX_OUTPUT_BUFFER_ = 2000 };
int
main(int argc, char *argv[])
{
scew_tree *tree = NULL;
scew_element *root = NULL;
scew_element *element = NULL;
scew_element *sub_element = NULL;
scew_element *sub_sub_element = NULL;
scew_attribute *attribute = NULL;
scew_printer *printer = NULL;
scew_writer *writer = NULL;
XML_Char *buffer = NULL;
#if defined(_MSC_VER) && defined(XML_UNICODE_WCHAR_T)
/* Change stdout to Unicode before writing anything. */
_setmode(_fileno(stdout), _O_U16TEXT);
#endif /* _MSC_VER && XML_UNICODE_WCHAR_T */
if (argc < 2)
{
scew_printf (_XT("Usage: scew_write new_file.xml\n"));
return EXIT_FAILURE;
}
/**
* Create an empty XML tree in memory, and add a root element
* "scew_test".
*/
tree = scew_tree_create ();
#ifdef XML_UNICODE_WCHAR_T
scew_tree_set_xml_encoding(tree, _XT("UTF-16"));
#endif /* XML_UNICODE_WCHAR_T */
root = scew_tree_set_root (tree, _XT("test"));
/* Add an element and set element contents. */
element = scew_element_add (root, _XT("element"));
scew_element_set_contents (element, _XT("element contents"));
/* Add an element with an attribute pair (name, value). */
element = scew_element_add (root, _XT("element"));
scew_element_add_attribute_pair (element, _XT("attribute"), _XT("value"));
element = scew_element_add (root, _XT("element"));
scew_element_add_attribute_pair (element, _XT("attribute1"), _XT("value1"));
/**
* Another way to add an attribute. You loose attribute ownership,
* so there is no need to free it.
*/
attribute = scew_attribute_create (_XT("attribute2"), _XT("value2"));
scew_element_add_attribute (element, attribute);
element = scew_element_add (root, _XT("element"));
sub_element = scew_element_add (element, _XT("subelement"));
scew_element_add_attribute_pair (sub_element,
_XT("attribute"), _XT("value"));
sub_element = scew_element_add (element, _XT("subelement"));
scew_element_add_attribute_pair (sub_element,
_XT("attribute1"), _XT("value1"));
scew_element_add_attribute_pair (sub_element,
_XT("attribute2"), _XT("value2"));
sub_sub_element = scew_element_add (sub_element, _XT("subsubelement"));
scew_element_add_attribute_pair (sub_sub_element,
_XT("attribute1"), _XT("value1"));
scew_element_add_attribute_pair (sub_sub_element,
_XT("attribute2"), _XT("value2"));
scew_element_add_attribute_pair (sub_sub_element,
_XT("attribute3"), _XT("value3"));
/* Check attribute2 replacement. */
scew_element_add_attribute_pair (sub_sub_element,
_XT("attribute2"), _XT("new_value2"));
scew_element_set_contents (sub_sub_element,
_XT("With accents: à é è í ó ú"));
/* Save the XML tree to a file. */
writer = scew_writer_file_create (argv[1]);
if (writer == NULL)
{
printf ("Unable to create %s\n", argv[1]);
return EXIT_FAILURE;
}
printer = scew_printer_create (writer);
if (printer == NULL)
{
printf ("Unable to create printer\n");
return EXIT_FAILURE;
}
/* We should check for errors here. */
(void) scew_printer_print_tree (printer, tree);
scew_writer_free (writer);
/* Save the XML tree to a buffer and print it to standard output. */
buffer = (XML_Char *) malloc (MAX_OUTPUT_BUFFER_);
writer = scew_writer_buffer_create (buffer, MAX_OUTPUT_BUFFER_);
if (writer == NULL)
{
printf ("Unable to create writer buffer\n");
return EXIT_FAILURE;
}
/* Replace writer */
scew_printer_set_writer (printer, writer);
/* We should check for errors here. */
(void) scew_printer_print_tree (printer, tree);
scew_printf (_XT("%s"), buffer);
free (buffer);
/* Frees the SCEW tree, printer and writer. */
scew_writer_free (writer);
scew_printer_free (printer);
scew_tree_free (tree);
return 0;
}
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