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Diffstat (limited to 'gl/lib/nl_langinfo.c')
| -rw-r--r-- | gl/lib/nl_langinfo.c | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/gl/lib/nl_langinfo.c b/gl/lib/nl_langinfo.c new file mode 100644 index 0000000..e8a5595 --- /dev/null +++ b/gl/lib/nl_langinfo.c @@ -0,0 +1,366 @@ +/* nl_langinfo() replacement: query locale dependent information. + + Copyright (C) 2007-2019 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include <langinfo.h> + +#include <locale.h> +#include <string.h> +#if defined _WIN32 && ! defined __CYGWIN__ +# define WIN32_LEAN_AND_MEAN /* avoid including junk */ +# include <windows.h> +# include <stdio.h> +#endif + +#if !REPLACE_NL_LANGINFO || GNULIB_defined_CODESET +/* Return the codeset of the current locale, if this is easily deducible. + Otherwise, return "". */ +static char * +ctype_codeset (void) +{ + static char buf[2 + 10 + 1]; + char const *locale = setlocale (LC_CTYPE, NULL); + char *codeset = buf; + size_t codesetlen; + codeset[0] = '\0'; + + if (locale && locale[0]) + { + /* If the locale name contains an encoding after the dot, return it. */ + char *dot = strchr (locale, '.'); + + if (dot) + { + /* Look for the possible @... trailer and remove it, if any. */ + char *codeset_start = dot + 1; + char const *modifier = strchr (codeset_start, '@'); + + if (! modifier) + codeset = codeset_start; + else + { + codesetlen = modifier - codeset_start; + if (codesetlen < sizeof buf) + { + codeset = memcpy (buf, codeset_start, codesetlen); + codeset[codesetlen] = '\0'; + } + } + } + } + +# if defined _WIN32 && ! defined __CYGWIN__ + /* If setlocale is successful, it returns the number of the + codepage, as a string. Otherwise, fall back on Windows API + GetACP, which returns the locale's codepage as a number (although + this doesn't change according to what the 'setlocale' call specified). + Either way, prepend "CP" to make it a valid codeset name. */ + codesetlen = strlen (codeset); + if (0 < codesetlen && codesetlen < sizeof buf - 2) + memmove (buf + 2, codeset, codesetlen + 1); + else + sprintf (buf + 2, "%u", GetACP ()); + codeset = memcpy (buf, "CP", 2); +# endif + return codeset; +} +#endif + + +#if REPLACE_NL_LANGINFO + +/* Override nl_langinfo with support for added nl_item values. */ + +# undef nl_langinfo + +char * +rpl_nl_langinfo (nl_item item) +{ + switch (item) + { +# if GNULIB_defined_CODESET + case CODESET: + return ctype_codeset (); +# endif +# if GNULIB_defined_T_FMT_AMPM + case T_FMT_AMPM: + return (char *) "%I:%M:%S %p"; +# endif +# if GNULIB_defined_ALTMON + case ALTMON_1: + case ALTMON_2: + case ALTMON_3: + case ALTMON_4: + case ALTMON_5: + case ALTMON_6: + case ALTMON_7: + case ALTMON_8: + case ALTMON_9: + case ALTMON_10: + case ALTMON_11: + case ALTMON_12: + /* We don't ship the appropriate localizations with gnulib. Therefore, + treat ALTMON_i like MON_i. */ + item = item - ALTMON_1 + MON_1; + break; +# endif +# if GNULIB_defined_ERA + case ERA: + /* The format is not standardized. In glibc it is a sequence of strings + of the form "direction:offset:start_date:end_date:era_name:era_format" + with an empty string at the end. */ + return (char *) ""; + case ERA_D_FMT: + /* The %Ex conversion in strftime behaves like %x if the locale does not + have an alternative time format. */ + item = D_FMT; + break; + case ERA_D_T_FMT: + /* The %Ec conversion in strftime behaves like %c if the locale does not + have an alternative time format. */ + item = D_T_FMT; + break; + case ERA_T_FMT: + /* The %EX conversion in strftime behaves like %X if the locale does not + have an alternative time format. */ + item = T_FMT; + break; + case ALT_DIGITS: + /* The format is not standardized. In glibc it is a sequence of 10 + strings, appended in memory. */ + return (char *) "\0\0\0\0\0\0\0\0\0\0"; +# endif +# if GNULIB_defined_YESEXPR || !FUNC_NL_LANGINFO_YESEXPR_WORKS + case YESEXPR: + return (char *) "^[yY]"; + case NOEXPR: + return (char *) "^[nN]"; +# endif + default: + break; + } + return nl_langinfo (item); +} + +#else + +/* Provide nl_langinfo from scratch, either for native MS-Windows, or + for old Unix platforms without locales, such as Linux libc5 or + BeOS. */ + +# include <time.h> + +char * +nl_langinfo (nl_item item) +{ + static char nlbuf[100]; + struct tm tmm = { 0 }; + + switch (item) + { + /* nl_langinfo items of the LC_CTYPE category */ + case CODESET: + { + char *codeset = ctype_codeset (); + if (*codeset) + return codeset; + } +# ifdef __BEOS__ + return (char *) "UTF-8"; +# else + return (char *) "ISO-8859-1"; +# endif + /* nl_langinfo items of the LC_NUMERIC category */ + case RADIXCHAR: + return localeconv () ->decimal_point; + case THOUSEP: + return localeconv () ->thousands_sep; +# ifdef GROUPING + case GROUPING: + return localeconv () ->grouping; +# endif + /* nl_langinfo items of the LC_TIME category. + TODO: Really use the locale. */ + case D_T_FMT: + case ERA_D_T_FMT: + return (char *) "%a %b %e %H:%M:%S %Y"; + case D_FMT: + case ERA_D_FMT: + return (char *) "%m/%d/%y"; + case T_FMT: + case ERA_T_FMT: + return (char *) "%H:%M:%S"; + case T_FMT_AMPM: + return (char *) "%I:%M:%S %p"; + case AM_STR: + if (!strftime (nlbuf, sizeof nlbuf, "%p", &tmm)) + return (char *) "AM"; + return nlbuf; + case PM_STR: + tmm.tm_hour = 12; + if (!strftime (nlbuf, sizeof nlbuf, "%p", &tmm)) + return (char *) "PM"; + return nlbuf; + case DAY_1: + case DAY_2: + case DAY_3: + case DAY_4: + case DAY_5: + case DAY_6: + case DAY_7: + { + static char const days[][sizeof "Wednesday"] = { + "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", + "Friday", "Saturday" + }; + tmm.tm_wday = item - DAY_1; + if (!strftime (nlbuf, sizeof nlbuf, "%A", &tmm)) + return (char *) days[item - DAY_1]; + return nlbuf; + } + case ABDAY_1: + case ABDAY_2: + case ABDAY_3: + case ABDAY_4: + case ABDAY_5: + case ABDAY_6: + case ABDAY_7: + { + static char const abdays[][sizeof "Sun"] = { + "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" + }; + tmm.tm_wday = item - ABDAY_1; + if (!strftime (nlbuf, sizeof nlbuf, "%a", &tmm)) + return (char *) abdays[item - ABDAY_1]; + return nlbuf; + } + { + static char const months[][sizeof "September"] = { + "January", "February", "March", "April", "May", "June", "July", + "September", "October", "November", "December" + }; + case MON_1: + case MON_2: + case MON_3: + case MON_4: + case MON_5: + case MON_6: + case MON_7: + case MON_8: + case MON_9: + case MON_10: + case MON_11: + case MON_12: + tmm.tm_mon = item - MON_1; + if (!strftime (nlbuf, sizeof nlbuf, "%B", &tmm)) + return (char *) months[item - MON_1]; + return nlbuf; + case ALTMON_1: + case ALTMON_2: + case ALTMON_3: + case ALTMON_4: + case ALTMON_5: + case ALTMON_6: + case ALTMON_7: + case ALTMON_8: + case ALTMON_9: + case ALTMON_10: + case ALTMON_11: + case ALTMON_12: + tmm.tm_mon = item - ALTMON_1; + /* The platforms without nl_langinfo() don't support strftime with %OB. + We don't even need to try. */ + #if 0 + if (!strftime (nlbuf, sizeof nlbuf, "%OB", &tmm)) + #endif + if (!strftime (nlbuf, sizeof nlbuf, "%B", &tmm)) + return (char *) months[item - ALTMON_1]; + return nlbuf; + } + case ABMON_1: + case ABMON_2: + case ABMON_3: + case ABMON_4: + case ABMON_5: + case ABMON_6: + case ABMON_7: + case ABMON_8: + case ABMON_9: + case ABMON_10: + case ABMON_11: + case ABMON_12: + { + static char const abmonths[][sizeof "Jan"] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", + "Sep", "Oct", "Nov", "Dec" + }; + tmm.tm_mon = item - ABMON_1; + if (!strftime (nlbuf, sizeof nlbuf, "%b", &tmm)) + return (char *) abmonths[item - ABMON_1]; + return nlbuf; + } + case ERA: + return (char *) ""; + case ALT_DIGITS: + return (char *) "\0\0\0\0\0\0\0\0\0\0"; + /* nl_langinfo items of the LC_MONETARY category. */ + case CRNCYSTR: + return localeconv () ->currency_symbol; +# ifdef INT_CURR_SYMBOL + case INT_CURR_SYMBOL: + return localeconv () ->int_curr_symbol; + case MON_DECIMAL_POINT: + return localeconv () ->mon_decimal_point; + case MON_THOUSANDS_SEP: + return localeconv () ->mon_thousands_sep; + case MON_GROUPING: + return localeconv () ->mon_grouping; + case POSITIVE_SIGN: + return localeconv () ->positive_sign; + case NEGATIVE_SIGN: + return localeconv () ->negative_sign; + case FRAC_DIGITS: + return & localeconv () ->frac_digits; + case INT_FRAC_DIGITS: + return & localeconv () ->int_frac_digits; + case P_CS_PRECEDES: + return & localeconv () ->p_cs_precedes; + case N_CS_PRECEDES: + return & localeconv () ->n_cs_precedes; + case P_SEP_BY_SPACE: + return & localeconv () ->p_sep_by_space; + case N_SEP_BY_SPACE: + return & localeconv () ->n_sep_by_space; + case P_SIGN_POSN: + return & localeconv () ->p_sign_posn; + case N_SIGN_POSN: + return & localeconv () ->n_sign_posn; +# endif + /* nl_langinfo items of the LC_MESSAGES category + TODO: Really use the locale. */ + case YESEXPR: + return (char *) "^[yY]"; + case NOEXPR: + return (char *) "^[nN]"; + default: + return (char *) ""; + } +} + +#endif |