Method
JsonReaderread_member
since: 0.12
Declaration [src]
gboolean
json_reader_read_member (
JsonReader* reader,
const gchar* member_name
)
Description [src]
Advances the cursor of the reader to the member_name of the object at
the current position.
You can use json_reader_get_value() and its wrapper functions to
retrieve the value of the member; for instance:
json_reader_read_member (reader, "width");
width = json_reader_get_int_value (reader);
After reading the value, json_reader_end_member() should be called to
reposition the cursor inside the reader, e.g.:
json_reader_read_member (reader, "author");
author = json_reader_get_string_value (reader);
json_reader_end_member (reader);
json_reader_read_member (reader, "title");
title = json_reader_get_string_value (reader);
json_reader_end_member (reader);
If the reader is not currently on an object, or if the member_name is not
defined in the object, the reader will be put in an error state until
json_reader_end_member() is called. This means that if used
conditionally, json_reader_end_member() must be called on all branches:
if (!json_reader_read_member (reader, "title"))
{
g_propagate_error (error, json_reader_get_error (reader));
json_reader_end_member (reader);
return FALSE;
}
else
{
const char *str_value = json_reader_get_string_value (reader);
json_reader_end_member (reader);
// use str_value
return TRUE;
}
Available since: 0.12