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#include "config.h"
#include <string.h>
#include "json-parser.h"
#include "json-private.h"
GQuark
json_parser_error_quark (void)
{
return g_quark_from_static_string ("json-parser-error");
}
#define JSON_PARSER_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), JSON_TYPE_PARSER, JsonParserPrivate))
struct _JsonParserPrivate
{
GList *top_levels;
};
G_DEFINE_TYPE (JsonParser, json_parser, G_TYPE_OBJECT);
static void
json_parser_dispose (GObject *gobject)
{
G_OBJECT_CLASS (json_parser_parent_class)->dispose (gobject);
}
static void
json_parser_class_init (JsonParserClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (JsonParserPrivate));
gobject_class->dispose = json_parser_dispose;
}
static void
json_parser_init (JsonParser *parser)
{
JsonParserPrivate *priv;
parser->priv = priv = JSON_PARSER_GET_PRIVATE (parser);
priv->top_levels = NULL;
}
/**
* json_parser_new:
*
* Creates a new #JsonParser instance. You can use the #JsonParser to
* load a JSON stream from either a file or a buffer and then walk the
* hierarchy using the data types API.
*
* Return value: the newly created #JsonParser. Use g_object_unref()
* to release all the memory it allocates.
*/
JsonParser *
json_parser_new (void)
{
return g_object_new (JSON_TYPE_PARSER, NULL);
}
/**
* json_parser_load_from_file:
* @parser: a #JsonParser
* @filename: the path for the file to parse
* @error: return location for a #GError, or %NULL
*
* Loads a JSON stream from the content of @filename and parses it.
*
* Return value: %TRUE if the file was successfully loaded and parsed.
* In case of error, @error is set accordingly and %FALSE is returned
*/
gboolean
json_parser_load_from_file (JsonParser *parser,
const gchar *filename,
GError **error)
{
GError *internal_error;
gchar *data;
gsize length;
gboolean retval = TRUE;
g_return_val_if_fail (JSON_IS_PARSER (parser), FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
internal_error = NULL;
if (!g_file_get_contents (filename, &data, &length, &internal_error))
{
g_propagate_error (error, internal_error);
return FALSE;
}
if (!json_parser_load_from_data (parser, data, length, &internal_error))
{
g_propagate_error (error, internal_error);
retval = FALSE;
}
g_free (data);
return retval;
}
/**
* json_parser_load_from_data:
* @parser: a #JsonParser
* @data: the buffer to parse
* @length: the length of the buffer, or -1
* @error: return location for a #GError, or %NULL
*
* Loads a JSON stream from a buffer and parses it.
*
* Return value: %TRUE if the buffer was succesfully parser. In case
* of error, @error is set accordingly and %FALSE is returned
*/
gboolean
json_parser_load_from_data (JsonParser *parser,
const gchar *data,
gsize length,
GError **error)
{
g_return_val_if_fail (JSON_IS_PARSER (parser), FALSE);
g_return_val_if_fail (data != NULL, FALSE);
if (length < 0)
length = strlen (data);
return TRUE;
}
/**
* json_parser_get_toplevels:
* @parser: a #JsonParser
*
* Retrieves the top level entities from the parsed JSON stream.
*
* Return value: a list of pointers to the top-level entites. The
* returned list is owned by the #JsonParser and should never be
* modified or freed.
*/
GList *
json_parser_get_toplevels (JsonParser *parser)
{
g_return_val_if_fail (JSON_IS_PARSER (parser), NULL);
return parser->priv->top_levels;
}
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