2 Copyright (C) 2008-2009 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Jim Meyering. */
21 #include "argv-iter.h"
27 #define ARRAY_CARDINALITY(Array) (sizeof (Array) / sizeof *(Array))
28 #define STREQ(s1, s2) (strcmp (s1, s2) == 0)
29 #define ASSERT(expr) \
34 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
42 write_nul_delimited_argv (char **argv)
44 FILE *fp = tmpfile ();
48 size_t len = strlen (*argv) + 1;
49 ASSERT (fwrite (*argv, len, 1, fp) == 1);
52 ASSERT (fflush (fp) == 0);
60 /* set_program_name (argv[0]); placate overzealous "syntax-check" test. */
61 static char one[] = "1";
62 static char two[] = "2";
63 static char three[] = "3";
64 static char *av[][4] = {
68 {one, two, three, NULL}
72 for (use_stream = 0; use_stream < 2; use_stream++)
75 for (i = 0; i < ARRAY_CARDINALITY (av); i++)
78 struct argv_iterator *ai;
82 /* Generate an identical list to be read via FP. */
83 ASSERT ((fp = write_nul_delimited_argv (av[i])) != NULL);
84 ai = argv_iter_init_stream (fp);
89 ai = argv_iter_init_argv (av[i]);
95 enum argv_iter_err ai_err;
96 char *s = argv_iter (ai, &ai_err);
97 ASSERT ((i == n_found) == (ai_err == AI_ERR_EOF));
98 ASSERT ((s == NULL) ^ (ai_err == AI_ERR_OK));
99 ASSERT (ai_err == AI_ERR_OK || ai_err == AI_ERR_EOF);
100 if (ai_err == AI_ERR_OK)
102 if (ai_err == AI_ERR_EOF)
104 /* In stream mode, the strings are equal, but
105 in argv mode the actual pointers are equal. */
107 ? STREQ (s, av[i][n_found - 1])
108 : s == av[i][n_found - 1]);
110 ASSERT (argv_iter_n_args (ai) == i);
113 ASSERT (fclose (fp) == 0);