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/* Copyright (C) 2008 Luc Pionchon
* Copyright (C) 2012 David King
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library 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.
*
* This library 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, see <http://www.gnu.org/licenses/>.
*/
#include <glib.h>
static void foo_parser_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error);
static void foo_parser_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error);
static void foo_parser_characters (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error);
static void foo_parser_passthrough (GMarkupParseContext *context,
const gchar *passthrough_text,
gsize text_len,
gpointer user_data,
GError **error);
static void foo_parser_error (GMarkupParseContext *context,
GError *error,
gpointer user_data);
/*
* Parser
*/
static const GMarkupParser foo_xml_parser = {
foo_parser_start_element,
foo_parser_end_element,
foo_parser_characters,
foo_parser_passthrough,
foo_parser_error
};
/*
* Called for opening tags like <foo bar="baz">
*/
static void
foo_parser_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
gpointer user_data,
GError **error)
{
g_print ("element: <%s>\n", element_name);
for (gsize i = 0; attribute_names[i]; i++)
{
g_print ("attribute: %s = \"%s\"\n", attribute_names[i],
attribute_values[i]);
}
}
/*
* Called for closing tags like </foo>
*/
static void
foo_parser_end_element (GMarkupParseContext *context,
const gchar *element_name,
gpointer user_data,
GError **error)
{
g_print ("element: </%s>\n", element_name);
}
/*
* Called for character data. Text is not nul-terminated
*/
static void
foo_parser_characters (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
g_print ("text: [%s]\n", text);
}
/*
* Called for strings that should be re-saved verbatim in this same
* position, but are not otherwise interpretable. At the moment this
* includes comments and processing instructions. Text is not
* nul-terminated.
*/
static void
foo_parser_passthrough (GMarkupParseContext *context,
const gchar *passthrough_text,
gsize text_len,
gpointer user_data,
GError **error)
{
g_print ("passthrough: %s\n", passthrough_text);
}
/*
* Called when any parsing method encounters an error. The GError should not be
* freed.
*/
static void
foo_parser_error (GMarkupParseContext *context,
GError *error,
gpointer user_data)
{
g_printerr ("ERROR: %s\n", error->message);
}
int
main (void)
{
GMarkupParseContext *context;
gboolean success = FALSE;
glong len;
/*
* Example XML for the parser.
*/
const gchar foo_xml_example[] =
"<foo bar='baz' bir='boz'>"
" <bar>bar text 1</bar> "
" <bar>bar text 2</bar> "
" foo text "
"<!-- nothing --> "
"</foo> ";
len = g_utf8_strlen (foo_xml_example, -1);
g_print ("Parsing: %s\n", foo_xml_example);
g_print ("(%ld UTF-8 characters)\n", len);
context = g_markup_parse_context_new (&foo_xml_parser, G_MARKUP_DEFAULT_FLAGS, NULL, NULL);
success = g_markup_parse_context_parse (context, foo_xml_example, len, NULL);
g_markup_parse_context_free (context);
if (success)
{
g_print ("DONE\n");
return 0;
}
else
{
g_printerr ("ERROR\n");
return 1;
}
}
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