| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| |
| #include "SDL_internal.h" |
| #include "../SDL_syslocale.h" |
| |
| static void normalize_locale_str(char *dst, char *str, size_t buflen) |
| { |
| char *ptr; |
| |
| ptr = SDL_strchr(str, '.'); /* chop off encoding if specified. */ |
| if (ptr) { |
| *ptr = '\0'; |
| } |
| |
| ptr = SDL_strchr(str, '@'); /* chop off extra bits if specified. */ |
| if (ptr) { |
| *ptr = '\0'; |
| } |
| |
| /* The "C" locale isn't useful for our needs, ignore it if you see it. */ |
| if ((str[0] == 'C') && (str[1] == '\0')) { |
| return; |
| } |
| |
| if (*str) { |
| if (*dst) { |
| SDL_strlcat(dst, ",", buflen); /* SDL has these split by commas */ |
| } |
| SDL_strlcat(dst, str, buflen); |
| } |
| } |
| |
| static void normalize_locales(char *dst, char *src, size_t buflen) |
| { |
| char *ptr; |
| |
| /* entries are separated by colons */ |
| while ((ptr = SDL_strchr(src, ':')) != NULL) { |
| *ptr = '\0'; |
| normalize_locale_str(dst, src, buflen); |
| src = ptr + 1; |
| } |
| normalize_locale_str(dst, src, buflen); |
| } |
| |
| int SDL_SYS_GetPreferredLocales(char *buf, size_t buflen) |
| { |
| /* !!! FIXME: should we be using setlocale()? Or some D-Bus thing? */ |
| SDL_bool isstack; |
| const char *envr; |
| char *tmp; |
| |
| SDL_assert(buflen > 0); |
| tmp = SDL_small_alloc(char, buflen, &isstack); |
| if (!tmp) { |
| return -1; |
| } |
| |
| *tmp = '\0'; |
| |
| /* LANG is the primary locale (maybe) */ |
| envr = SDL_getenv("LANG"); |
| if (envr) { |
| SDL_strlcpy(tmp, envr, buflen); |
| } |
| |
| /* fallback languages */ |
| envr = SDL_getenv("LANGUAGE"); |
| if (envr) { |
| if (*tmp) { |
| SDL_strlcat(tmp, ":", buflen); |
| } |
| SDL_strlcat(tmp, envr, buflen); |
| } |
| |
| if (*tmp == '\0') { |
| SDL_SetError("LANG environment variable isn't set"); |
| } else { |
| normalize_locales(buf, tmp, buflen); |
| } |
| |
| SDL_small_free(tmp, isstack); |
| return 0; |
| } |