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LibC: Implement nl_langinfo 

All values are from POSIX locale except CODESET which can be "UTF-8"
depending on the current locale
This commit is contained in:
Bananymous 2025-04-19 20:02:01 +03:00
parent 12d47858c1
commit 407eed212a
2 changed files with 91 additions and 0 deletions
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1
userspace/libraries/LibC/CMakeLists.txt
View File

@ -11,6 +11,7 @@ set(LIBC_SOURCES
ftw.cpp
grp.cpp
inttypes.cpp
langinfo.cpp
libgen.cpp
locale.cpp
malloc.cpp

90
userspace/libraries/LibC/langinfo.cpp Normal file
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@ -0,0 +1,90 @@
#include <langinfo.h>
#include <locale.h>
#include <BAN/Assert.h>
static const char* nl_langinfo_impl(nl_item item)
{
// only codeset is affected by current locales
if (item == CODESET)
{
switch (__getlocale(LC_CTYPE))
{
case LOCALE_INVALID: ASSERT_NOT_REACHED();
case LOCALE_UTF8: return "UTF-8";
case LOCALE_POSIX: return "ANSI_X3.4-1968";
}
ASSERT_NOT_REACHED();
}
// other values from POSIX locale
switch (item)
{
// LC_TIME
case D_T_FMT: return "%a %b %e %H:%M:%S %Y";
case D_FMT: return "%m/%d/%y";
case T_FMT: return "%H:%M:%S";
case AM_STR: return "AM";
case PM_STR: return "PM";
case T_FMT_AMPM: return "%I:%M:%S %p";
case ERA: return "";
case ERA_D_T_FMT: return "";
case ERA_D_FMT: return "";
case ERA_T_FMT: return "";
case DAY_1: return "Sunday";
case DAY_2: return "Monday";
case DAY_3: return "Tuesday";
case DAY_4: return "Wednesday";
case DAY_5: return "Thursday";
case DAY_6: return "Friday";
case DAY_7: return "Saturday";
case ABDAY_1: return "Sun";
case ABDAY_2: return "Mon";
case ABDAY_3: return "Tue";
case ABDAY_4: return "Wed";
case ABDAY_5: return "Thu";
case ABDAY_6: return "Fri";
case ABDAY_7: return "Sat";
case MON_1: return "January";
case MON_2: return "February";
case MON_3: return "March";
case MON_4: return "April";
case MON_5: return "May";
case MON_6: return "June";
case MON_7: return "July";
case MON_8: return "August";
case MON_9: return "September";
case MON_10: return "October";
case MON_11: return "November";
case MON_12: return "December";
case ABMON_1: return "Jan";
case ABMON_2: return "Feb";
case ABMON_3: return "Mar";
case ABMON_4: return "Apr";
case ABMON_5: return "May";
case ABMON_6: return "Jun";
case ABMON_7: return "Jul";
case ABMON_8: return "Aug";
case ABMON_9: return "Sep";
case ABMON_10: return "Oct";
case ABMON_11: return "Nov";
case ABMON_12: return "Dec";
// LC_NUMERIC
case RADIXCHAR: return ".";
case THOUSEP: return "";
// LC_MESSAGES
case YESEXPR: return "^[yY]";
case NOEXPR: return "^[nN]";
// LC_MONETARY
case CRNCYSTR: return "";
}
return "";
}
char* nl_langinfo(nl_item item)
{
// NOTE: POSIX says "The application shall not modify the string returned"
// so const_cast from string literal *should* be fine
return const_cast<char*>(nl_langinfo_impl(item));
}