145 lines
3.2 KiB
C++
145 lines
3.2 KiB
C++
#include <BAN/Assert.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <string.h>
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static locale_t s_current_locales[LC_ALL] {
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LOCALE_POSIX,
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LOCALE_POSIX,
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LOCALE_POSIX,
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LOCALE_POSIX,
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LOCALE_POSIX,
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LOCALE_POSIX,
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};
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static_assert(LC_ALL == 6);
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static locale_t str_to_locale(const char* locale)
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{
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if (*locale == '\0')
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return LOCALE_UTF8;
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if (strcmp(locale, "C") == 0 || strcmp(locale, "LOCALE_POSIX") == 0)
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return LOCALE_POSIX;
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if (strcmp(locale, "C.UTF8") == 0)
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return LOCALE_UTF8;
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return LOCALE_INVALID;
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}
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static const char* locale_to_str(locale_t locale)
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{
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if (locale == LOCALE_POSIX)
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return "C";
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if (locale == LOCALE_UTF8)
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return "C.UTF8";
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ASSERT_NOT_REACHED();
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}
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struct lconv* localeconv(void)
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{
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constexpr char CHAR_MAX = __SCHAR_MAX__;
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static lconv lconv;
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lconv.currency_symbol = const_cast<char*>("");
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lconv.decimal_point = const_cast<char*>(".");
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lconv.frac_digits = CHAR_MAX;
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lconv.grouping = const_cast<char*>("");
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lconv.int_curr_symbol = const_cast<char*>("");
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lconv.int_frac_digits = CHAR_MAX;
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lconv.int_n_cs_precedes = CHAR_MAX;
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lconv.int_n_sep_by_space = CHAR_MAX;
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lconv.int_n_sign_posn = CHAR_MAX;
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lconv.int_p_cs_precedes = CHAR_MAX;
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lconv.int_p_sep_by_space = CHAR_MAX;
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lconv.int_p_sign_posn = CHAR_MAX;
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lconv.mon_decimal_point = const_cast<char*>("");
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lconv.mon_grouping = const_cast<char*>("");
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lconv.mon_thousands_sep = const_cast<char*>("");
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lconv.negative_sign = const_cast<char*>("");
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lconv.n_cs_precedes = CHAR_MAX;
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lconv.n_sep_by_space = CHAR_MAX;
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lconv.n_sign_posn = CHAR_MAX;
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lconv.positive_sign = const_cast<char*>("");
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lconv.p_cs_precedes = CHAR_MAX;
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lconv.p_sep_by_space = CHAR_MAX;
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lconv.p_sign_posn = CHAR_MAX;
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lconv.thousands_sep = const_cast<char*>("");
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return &lconv;
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}
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char* setlocale(int category, const char* locale_str)
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{
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static char s_locale_buffer[128];
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if (locale_str == nullptr)
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{
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switch (category)
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{
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case LC_COLLATE:
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case LC_CTYPE:
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case LC_MESSAGES:
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case LC_MONETARY:
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case LC_NUMERIC:
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case LC_TIME:
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strcpy(s_locale_buffer, locale_to_str(s_current_locales[category]));
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break;
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case LC_ALL:
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sprintf(s_locale_buffer, "%s;%s;%s;%s;%s;%s",
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locale_to_str(s_current_locales[0]),
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locale_to_str(s_current_locales[1]),
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locale_to_str(s_current_locales[2]),
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locale_to_str(s_current_locales[3]),
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locale_to_str(s_current_locales[4]),
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locale_to_str(s_current_locales[5])
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);
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break;
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default:
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return nullptr;
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}
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return s_locale_buffer;
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}
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locale_t locale = str_to_locale(locale_str);
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if (locale == LOCALE_INVALID)
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return nullptr;
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switch (category)
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{
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case LC_COLLATE:
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case LC_CTYPE:
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case LC_MESSAGES:
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case LC_MONETARY:
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case LC_NUMERIC:
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case LC_TIME:
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s_current_locales[category] = locale;
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break;
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case LC_ALL:
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for (auto& current : s_current_locales)
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current = locale;
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break;
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default:
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return nullptr;
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}
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strcpy(s_locale_buffer, locale_to_str(locale));
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return s_locale_buffer;
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}
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locale_t __getlocale(int category)
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{
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switch (category)
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{
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case LC_COLLATE:
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case LC_CTYPE:
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case LC_MESSAGES:
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case LC_MONETARY:
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case LC_NUMERIC:
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case LC_TIME:
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return s_current_locales[category];
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default:
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return LOCALE_INVALID;
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}
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}
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