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/* -*- mode: C -*- */
/* IGraph library.
Copyright (C) 2007-2022 The igraph development team <igraph@igraph.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <igraph.h>
int main(void) {
igraph_t g;
igraph_vector_t y;
igraph_warning_handler_t* oldwarnhandler;
/* Turn on attribute handling. */
igraph_set_attribute_table(&igraph_cattribute_table);
/* Create a graph, add some attributes and save it as a GraphML file. */
igraph_famous(&g, "Petersen");
SETGAS(&g, "name", "Petersen's graph");
SETGAN(&g, "vertices", igraph_vcount(&g));
SETGAN(&g, "edges", igraph_ecount(&g));
SETGAB(&g, "famous", true);
igraph_vector_init_range(&y, 1, igraph_vcount(&g) + 1);
SETVANV(&g, "id", &y);
igraph_vector_destroy(&y);
SETVAS(&g, "name", 0, "foo");
SETVAS(&g, "name", 1, "foobar");
SETVAB(&g, "is_first", 0, true);
igraph_vector_init_range(&y, 1, igraph_ecount(&g) + 1);
SETEANV(&g, "id", &y);
igraph_vector_destroy(&y);
SETEAS(&g, "name", 0, "FOO");
SETEAS(&g, "name", 1, "FOOBAR");
SETEAB(&g, "is_first", 0, true);
/* Turn off the warning handler temporarily because the GML writer will
* print warnings about boolean attributes being converted to numbers, and
* we don't care about these. */
oldwarnhandler = igraph_set_warning_handler(igraph_warning_handler_ignore);
igraph_write_graph_gml(&g, stdout, IGRAPH_WRITE_GML_DEFAULT_SW, 0, "");
igraph_set_warning_handler(oldwarnhandler);
/* Back to business. */
igraph_write_graph_graphml(&g, stdout, /*prefixattr=*/ true);
igraph_destroy(&g);
return 0;
}
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