| 1 | /* Copyright (C) 1999,2000,2001,2003, 2006 Free Software Foundation, Inc. |
| 2 | * |
| 3 | * This library is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of the GNU Lesser General Public |
| 5 | * License as published by the Free Software Foundation; either |
| 6 | * version 2.1 of the License, or (at your option) any later version. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * Lesser General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public |
| 14 | * License along with this library; if not, write to the Free Software |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 16 | */ |
| 17 | |
| 18 | /* some bits originally by Jim Blandy <jimb@red-bean.com> */ |
| 19 | |
| 20 | #include "libguile.h" |
| 21 | #include "libguile/gh.h" |
| 22 | |
| 23 | #include <assert.h> |
| 24 | #include <string.h> |
| 25 | |
| 26 | #if SCM_ENABLE_DEPRECATED |
| 27 | |
| 28 | static int |
| 29 | string_equal (SCM str, char *lit) |
| 30 | { |
| 31 | int len = strlen (lit); |
| 32 | int result; |
| 33 | |
| 34 | result = ((scm_i_string_length (str) == len) |
| 35 | && (!memcmp (scm_i_string_chars (str), lit, len))); |
| 36 | scm_remember_upto_here_1 (str); |
| 37 | return result; |
| 38 | } |
| 39 | |
| 40 | static void |
| 41 | test_gh_set_substr () |
| 42 | { |
| 43 | SCM string; |
| 44 | |
| 45 | string = gh_str02scm ("Free, darnit!"); |
| 46 | assert (gh_string_p (string)); |
| 47 | |
| 48 | gh_set_substr ("dammit", string, 6, 6); |
| 49 | assert (string_equal (string, "Free, dammit!")); |
| 50 | |
| 51 | /* Make sure that we can use the string itself as a source. |
| 52 | |
| 53 | I guess this behavior isn't really visible, since the GH API |
| 54 | doesn't provide any direct access to the string contents. But I |
| 55 | think it should, eventually. You can't write efficient string |
| 56 | code if you have to copy the string just to look at it. */ |
| 57 | |
| 58 | /* Copy a substring to an overlapping region to its right. */ |
| 59 | gh_set_substr (scm_i_string_chars (string), string, 4, 6); |
| 60 | assert (string_equal (string, "FreeFree, it!")); |
| 61 | |
| 62 | string = gh_str02scm ("Free, darnit!"); |
| 63 | assert (gh_string_p (string)); |
| 64 | |
| 65 | /* Copy a substring to an overlapping region to its left. */ |
| 66 | gh_set_substr (scm_i_string_chars (string) + 6, string, 2, 6); |
| 67 | assert (string_equal (string, "Frdarnitrnit!")); |
| 68 | } |
| 69 | |
| 70 | static void |
| 71 | tests (void *data, int argc, char **argv) |
| 72 | { |
| 73 | test_gh_set_substr (); |
| 74 | } |
| 75 | |
| 76 | int |
| 77 | main (int argc, char *argv[]) |
| 78 | { |
| 79 | scm_boot_guile (argc, argv, tests, NULL); |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | #else |
| 84 | |
| 85 | int |
| 86 | main (int argc, char *argv[]) |
| 87 | { |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | #endif /* !SCM_ENABLE_DEPRECATED */ |