| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (C) 2011 Red Hat, Inc. | ||
| 3 | * | ||
| 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 2 of the License, or | ||
| 7 | * (at your option) any later version. | ||
| 8 | * | ||
| 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. | ||
| 13 | * | ||
| 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/>. | ||
| 16 | * | ||
| 17 | * Author: Bastien Nocera <hadess@hadess.net> | ||
| 18 | * | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include <errno.h> | ||
| 22 | #include <langinfo.h> | ||
| 23 | #include <locale.h> | ||
| 24 | #include <glib.h> | ||
| 25 | #include <string.h> | ||
| 26 | |||
| 27 | #include "date-endian.h" | ||
| 28 | |||
| 29 | /* We default to returning DATE_ENDIANESS_LITTLE because that's | ||
| 30 | * what 3.4 billion people use */ | ||
| 31 | #define DEFAULT_ENDIANESS DATE_ENDIANESS_LITTLE | ||
| 32 | |||
| 33 | typedef enum { | ||
| 34 | ITEM_NONE = 0, | ||
| 35 | ITEM_DAY, | ||
| 36 | ITEM_MONTH, | ||
| 37 | ITEM_YEAR | ||
| 38 | } Item; | ||
| 39 | |||
| 40 | static gboolean | ||
| 41 | ✗ | has_item (Item *items, | |
| 42 | Item item) | ||
| 43 | { | ||
| 44 | guint i; | ||
| 45 | |||
| 46 | ✗ | for (i = 0; i < 3; i++) { | |
| 47 | ✗ | if (items[i] == ITEM_NONE) | |
| 48 | ✗ | return FALSE; | |
| 49 | ✗ | if (items[i] == item) | |
| 50 | ✗ | return TRUE; | |
| 51 | } | ||
| 52 | ✗ | return FALSE; | |
| 53 | } | ||
| 54 | |||
| 55 | DateEndianess | ||
| 56 | ✗ | date_endian_get_default (gboolean verbose) | |
| 57 | { | ||
| 58 | const char *fmt; | ||
| 59 | const char *p; | ||
| 60 | Item items[3]; | ||
| 61 | guint i; | ||
| 62 | |||
| 63 | ✗ | fmt = nl_langinfo (D_FMT); | |
| 64 | ✗ | g_return_val_if_fail (fmt != NULL, DEFAULT_ENDIANESS); | |
| 65 | |||
| 66 | ✗ | if (verbose) | |
| 67 | ✗ | g_print ("%s", fmt); | |
| 68 | |||
| 69 | ✗ | if (g_str_equal (fmt, "%F")) | |
| 70 | ✗ | return DATE_ENDIANESS_BIG; | |
| 71 | |||
| 72 | ✗ | i = 0; | |
| 73 | ✗ | memset (&items, 0, sizeof(items)); | |
| 74 | |||
| 75 | /* Assume ASCII only */ | ||
| 76 | ✗ | for (p = fmt; *p != '\0'; p++) { | |
| 77 | char c; | ||
| 78 | |||
| 79 | /* Look for '%' */ | ||
| 80 | ✗ | if (*p != '%') | |
| 81 | ✗ | continue; | |
| 82 | |||
| 83 | /* Only assert when we're sure we don't have another '%' */ | ||
| 84 | ✗ | if (i >= 4) { | |
| 85 | ✗ | g_warning ("Could not parse format '%s', too many formats", fmt); | |
| 86 | ✗ | return DEFAULT_ENDIANESS; | |
| 87 | } | ||
| 88 | |||
| 89 | ✗ | c = *(p + 1); | |
| 90 | /* Ignore alternative formats */ | ||
| 91 | ✗ | if (c == 'O' || c == '-' || c == 'E') | |
| 92 | ✗ | c = *(p + 2); | |
| 93 | ✗ | if (c == '\0') { | |
| 94 | ✗ | g_warning ("Count not parse format '%s', unterminated '%%'", fmt); | |
| 95 | ✗ | return DEFAULT_ENDIANESS; | |
| 96 | } | ||
| 97 | ✗ | switch (c) { | |
| 98 | ✗ | case 'A': | |
| 99 | case 'd': | ||
| 100 | case 'e': | ||
| 101 | ✗ | if (has_item (items, ITEM_DAY) == FALSE) { | |
| 102 | ✗ | items[i] = ITEM_DAY; | |
| 103 | ✗ | i++; | |
| 104 | } | ||
| 105 | ✗ | break; | |
| 106 | ✗ | case 'm': | |
| 107 | case 'b': | ||
| 108 | case 'B': | ||
| 109 | ✗ | if (has_item (items, ITEM_MONTH) == FALSE) { | |
| 110 | ✗ | items[i] = ITEM_MONTH; | |
| 111 | ✗ | i++; | |
| 112 | } | ||
| 113 | ✗ | break; | |
| 114 | ✗ | case 'y': | |
| 115 | case 'Y': | ||
| 116 | ✗ | if (has_item (items, ITEM_YEAR) == FALSE) { | |
| 117 | ✗ | items[i] = ITEM_YEAR; | |
| 118 | ✗ | i++; | |
| 119 | } | ||
| 120 | ✗ | break; | |
| 121 | ✗ | case 'a': | |
| 122 | /* Ignore */ | ||
| 123 | ; | ||
| 124 | } | ||
| 125 | } | ||
| 126 | |||
| 127 | ✗ | if (items[0] == ITEM_DAY && | |
| 128 | ✗ | items[1] == ITEM_MONTH && | |
| 129 | ✗ | items[2] == ITEM_YEAR) | |
| 130 | ✗ | return DATE_ENDIANESS_LITTLE; | |
| 131 | ✗ | if (items[0] == ITEM_YEAR && | |
| 132 | ✗ | items[1] == ITEM_MONTH && | |
| 133 | ✗ | items[2] == ITEM_DAY) | |
| 134 | ✗ | return DATE_ENDIANESS_BIG; | |
| 135 | ✗ | if (items[0] == ITEM_MONTH && | |
| 136 | ✗ | items[1] == ITEM_DAY && | |
| 137 | ✗ | items[2] == ITEM_YEAR) | |
| 138 | ✗ | return DATE_ENDIANESS_MIDDLE; | |
| 139 | ✗ | if (items[0] == ITEM_YEAR && | |
| 140 | ✗ | items[1] == ITEM_DAY && | |
| 141 | ✗ | items[2] == ITEM_MONTH) | |
| 142 | ✗ | return DATE_ENDIANESS_YDM; | |
| 143 | |||
| 144 | ✗ | g_warning ("Could not parse format '%s'", fmt); | |
| 145 | |||
| 146 | ✗ | return DEFAULT_ENDIANESS; | |
| 147 | } | ||
| 148 | |||
| 149 | DateEndianess | ||
| 150 | ✗ | date_endian_get_for_lang (const char *lang, | |
| 151 | gboolean verbose) | ||
| 152 | { | ||
| 153 | locale_t locale; | ||
| 154 | locale_t old_locale; | ||
| 155 | DateEndianess endian; | ||
| 156 | |||
| 157 | ✗ | locale = newlocale (LC_TIME_MASK, lang, (locale_t) 0); | |
| 158 | ✗ | if (locale == (locale_t) 0) | |
| 159 | ✗ | g_warning ("Failed to create locale %s: %s", lang, g_strerror (errno)); | |
| 160 | else | ||
| 161 | ✗ | old_locale = uselocale (locale); | |
| 162 | |||
| 163 | ✗ | endian = date_endian_get_default (verbose); | |
| 164 | |||
| 165 | ✗ | if (locale != (locale_t) 0) { | |
| 166 | ✗ | uselocale (old_locale); | |
| 167 | ✗ | freelocale (locale); | |
| 168 | } | ||
| 169 | |||
| 170 | ✗ | return endian; | |
| 171 | } | ||
| 172 | |||
| 173 | const char * | ||
| 174 | ✗ | date_endian_to_string (DateEndianess endianess) | |
| 175 | { | ||
| 176 | ✗ | switch (endianess) { | |
| 177 | ✗ | case DATE_ENDIANESS_LITTLE: | |
| 178 | ✗ | return "Little (DD-MM-YYYY)"; | |
| 179 | ✗ | case DATE_ENDIANESS_BIG: | |
| 180 | ✗ | return "Big (YYYY-MM-DD)"; | |
| 181 | ✗ | case DATE_ENDIANESS_MIDDLE: | |
| 182 | ✗ | return "Middle (MM-DD-YYYY)"; | |
| 183 | ✗ | case DATE_ENDIANESS_YDM: | |
| 184 | ✗ | return "YDM (YYYY-DD-MM)"; | |
| 185 | ✗ | default: | |
| 186 | ✗ | g_assert_not_reached (); | |
| 187 | } | ||
| 188 | } | ||
| 189 |