gnulib/lib/localcharset.c

1 /* Determine a canonical name for the current locale's character encoding.
45 #   include <locale.h>
276 /* Determine the current locale's character encoding, and canonicalize it
301      of the locale name from the environment variables (if present) or
305       const char *locale;
308       locale = getenv ("LC_ALL");
309       if (locale == NULL || locale[0] == '\0')
311 	  locale = getenv ("LC_CTYPE");
312 	  if (locale == NULL || locale[0] == '\0')
313 	    locale = getenv ("LANG");
315       if (locale != NULL && locale[0] != '\0')
317 	  /* If the locale name contains an encoding after the dot, return
319 	  const char *dot = strchr (locale, '.');
339       /* Woe32 has a function returning the locale's codepage as a number.  */
348   const char *locale = NULL;
351      (like SunOS 4 or DJGPP) have only the C locale.  Therefore we don't
353      locale name the user has set.  */
355   locale = setlocale (LC_CTYPE, NULL);
357   if (locale == NULL || locale[0] == '\0')
359       locale = getenv ("LC_ALL");
360       if (locale == NULL || locale[0] == '\0')
362 	  locale = getenv ("LC_CTYPE");
363 	  if (locale == NULL || locale[0] == '\0')
364 	    locale = getenv ("LANG");
368   /* On some old systems, one used to set locale = "iso8859_1". On others,
371   codeset = locale;
379   /* Woe32 has a function returning the locale's codepage as a number.  */
385   const char *locale;
392   locale = getenv ("LC_ALL");
393   if (locale == NULL || locale[0] == '\0')
395       locale = getenv ("LC_CTYPE");
396       if (locale == NULL || locale[0] == '\0')
397 	locale = getenv ("LANG");
399   if (locale != NULL && locale[0] != '\0')
401       /* If the locale name contains an encoding after the dot, return it.  */
402       const char *dot = strchr (locale, '.');
422       codeset = locale;
426       /* OS/2 has a function returning the locale's codepage as a number.  */
454      the empty string as denoting "the locale's character encoding",