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cb36189692
Ryan C. Gordon We should really stick this in SDL_internal.h or something so it's always available.
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#include "../SDL_syslocale.h"
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static void
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normalize_locale_str(char *dst, char *str, size_t buflen)
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{
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char *ptr;
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ptr = SDL_strchr(str, '.'); /* chop off encoding if specified. */
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if (ptr != NULL) {
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*ptr = '\0';
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}
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ptr = SDL_strchr(str, '@'); /* chop off extra bits if specified. */
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if (ptr != NULL) {
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*ptr = '\0';
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}
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/* The "C" locale isn't useful for our needs, ignore it if you see it. */
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if ((str[0] == 'C') && (str[1] == '\0')) {
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return;
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}
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if (*str) {
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if (*dst) {
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SDL_strlcat(dst, ",", buflen); /* SDL has these split by commas */
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}
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SDL_strlcat(dst, str, buflen);
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}
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}
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static void
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normalize_locales(char *dst, char *src, size_t buflen)
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{
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char *ptr;
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/* entries are separated by colons */
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while ((ptr = SDL_strchr(src, ':')) != NULL) {
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*ptr = '\0';
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normalize_locale_str(dst, src, buflen);
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src = ptr + 1;
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}
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normalize_locale_str(dst, src, buflen);
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}
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void
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SDL_SYS_GetPreferredLocales(char *buf, size_t buflen)
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{
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/* !!! FIXME: should we be using setlocale()? Or some D-Bus thing? */
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SDL_bool isstack;
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const char *envr;
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char *tmp;
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SDL_assert(buflen > 0);
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tmp = SDL_small_alloc(char, buflen, &isstack);
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if (!tmp) {
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SDL_OutOfMemory();
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return;
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}
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*tmp = '\0';
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/* LANG is the primary locale (maybe) */
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envr = SDL_getenv("LANG");
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if (envr) {
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SDL_strlcpy(tmp, envr, buflen);
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}
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/* fallback languages */
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envr = SDL_getenv("LANGUAGE");
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if (envr) {
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if (*tmp) {
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SDL_strlcat(tmp, ":", buflen);
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}
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SDL_strlcat(tmp, envr, buflen);
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}
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if (*tmp == '\0') {
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SDL_SetError("LANG environment variable isn't set");
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} else {
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normalize_locales(buf, tmp, buflen);
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}
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SDL_small_free(tmp, isstack);
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}
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/* vi: set ts=4 sw=4 expandtab: */
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