libs/iconv/localcharset.c

1 /* Determine a canonical name for the current locale's character encoding.
46 #   include <locale.h>
277 /* Determine the current locale's character encoding, and canonicalize it
302      of the locale name from the environment variables (if present) or
306       const char *locale;
309       locale = getenv ("LC_ALL");
310       if (locale == NULL || locale[0] == '\0')
312 	  locale = getenv ("LC_CTYPE");
313 	  if (locale == NULL || locale[0] == '\0')
314 	    locale = getenv ("LANG");
316       if (locale != NULL && locale[0] != '\0')
318 	  /* If the locale name contains an encoding after the dot, return
320 	  const char *dot = strchr (locale, '.');
340       /* Woe32 has a function returning the locale's codepage as a number.  */
349   const char *locale = NULL;
352      (like SunOS 4 or DJGPP) have only the C locale.  Therefore we don't
354      locale name the user has set.  */
356   locale = setlocale (LC_CTYPE, NULL);
358   if (locale == NULL || locale[0] == '\0')
360       locale = getenv ("LC_ALL");
361       if (locale == NULL || locale[0] == '\0')
363 	  locale = getenv ("LC_CTYPE");
364 	  if (locale == NULL || locale[0] == '\0')
365 	    locale = getenv ("LANG");
369   /* On some old systems, one used to set locale = "iso8859_1". On others,
372   codeset = locale;
380   /* Woe32 has a function returning the locale's codepage as a number.  */
386   const char *locale;
393   locale = getenv ("LC_ALL");
394   if (locale == NULL || locale[0] == '\0')
396       locale = getenv ("LC_CTYPE");
397       if (locale == NULL || locale[0] == '\0')
398 	locale = getenv ("LANG");
400   if (locale != NULL && locale[0] != '\0')
402       /* If the locale name contains an encoding after the dot, return it.  */
403       const char *dot = strchr (locale, '.');
423       codeset = locale;
427       /* OS/2 has a function returning the locale's codepage as a number.  */
455      the empty string as denoting "the locale's character encoding",