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(libIDL.info)Example

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Usage
*****

   The following C program using libIDL will parse an IDL file and print
the Repository IDs of the interfaces in the IDL module.

     #include <assert.h>
     #include <stdio.h>
     #include <stdlib.h>
     #include <libIDL/IDL.h>
     
     gboolean
     print_repo_id (IDL_tree_func_data *tfd, gpointer user_data)
     {
     	char *repo_id = NULL;
     
     	if (IDL_NODE_TYPE (tfd->tree) == IDLN_INTERFACE)
     		repo_id = IDL_IDENT_REPO_ID (IDL_INTERFACE (tfd->tree).ident);
     
     	if (repo_id)
     		printf ("%s\n", repo_id);
     
     	return TRUE;
     }
     
     int
     main (int argc, char *argv[])
     {
     	IDL_tree tree;
     	IDL_ns ns;
     	char *fn;
     	int rv;
     
     	if (argc < 2) {
     		fprintf (stderr, "usage: %s <file>\n", argv[0]);
     		exit (1);
     	}
     	fn = argv[1];
     
     	rv = IDL_parse_filename (fn, NULL, NULL, &tree, &ns, 0, IDL_WARNING1);
     
     	if (rv == IDL_ERROR || rv < 0) {
     		if (rv < 0)
     			perror (fn);
     		exit (1);
     	}
     	IDL_tree_walk_in_order (tree, print_repo_id, NULL);
     	IDL_ns_free (ns);
     	IDL_tree_free (tree);
     
     	return 0;
     }