langinfo.c

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#include <assert.h>
#include <langinfo.h>
#include <locale.h>
#include <stdint.h>

static const char c_time[] = "Sun\0"
                             "Mon\0"
                             "Tue\0"
                             "Wed\0"
                             "Thu\0"
                             "Fri\0"
                             "Sat\0"
                             "Sunday\0"
                             "Monday\0"
                             "Tuesday\0"
                             "Wednesday\0"
                             "Thursday\0"
                             "Friday\0"
                             "Saturday\0"
                             "Jan\0"
                             "Feb\0"
                             "Mar\0"
                             "Apr\0"
                             "May\0"
                             "Jun\0"
                             "Jul\0"
                             "Aug\0"
                             "Sep\0"
                             "Oct\0"
                             "Nov\0"
                             "Dec\0"
                             "January\0"
                             "February\0"
                             "March\0"
                             "April\0"
                             "May\0"
                             "June\0"
                             "July\0"
                             "August\0"
                             "September\0"
                             "October\0"
                             "November\0"
                             "December\0"
                             "AM\0"
                             "PM\0"
                             "%a %b %e %T %Y\0"
                             "%m/%d/%y\0"
                             "%H:%M:%S\0"
                             "%I:%M:%S %p\0"
                             "\0"
                             "\0"
                             "%m/%d/%y\0"
                             "0123456789\0"
                             "%a %b %e %T %Y\0"
                             "%H:%M:%S";

static const char c_messages[] = "^[yY]\0"
                                 "^[nN]\0"
                                 "yes\0"
                                 "no";
static const char c_numeric[] = ".\0"
                                "";

char* nl_langinfo(nl_item item)
{
    int cat = item >> 16;
    int idx = item & 65535;
    const char* str;

    if(item == CODESET)
    {
        assert(0 /*"Codeset langinfo not implemented"*/);
        // return loc->cat[LC_CTYPE] ? "UTF-8" : "ASCII";
    }

    /* _NL_LOCALE_NAME extension */
    if(idx == 65535 && cat < LC_ALL)
    {
        assert(0 /*"LOCALE_NAME langinfo not implemented"*/);
        // return loc->cat[cat] ? (char *)loc->cat[cat]->name : "C";
    }

    switch(cat)
    {
        case LC_NUMERIC:
            if(idx > 1)
            {
                return (char*)(uintptr_t) "";
            }
            str = c_numeric;
            break;
        case LC_TIME:
            if(idx > 0x31)
            {
                return (char*)(uintptr_t) "";
            }
            str = c_time;
            break;
        case LC_MONETARY:
            if(idx > 0)
            {
                return (char*)(uintptr_t) "";
            }
            str = "";
            break;
        case LC_MESSAGES:
            if(idx > 3)
            {
                return (char*)(uintptr_t) "";
            }
            str = c_messages;
            break;
        default:
            return (char*)(uintptr_t) "";
    }

    for(; idx; idx--, str++)
    {
        for(; *str; str++)
        {
        }
    }

#if 0
    if (cat != LC_NUMERIC && *str)
    {
        str = LCTRANS(str, cat, loc);
    }
#endif

    return (char*)(uintptr_t)str;
}