diff options
Diffstat (limited to 'locale')
| -rw-r--r-- | locale/lc-time.c | 59 | ||||
| -rw-r--r-- | locale/localeinfo.h | 3 |
2 files changed, 61 insertions, 1 deletions
diff --git a/locale/lc-time.c b/locale/lc-time.c index 545f83d123..efa56b8f82 100644 --- a/locale/lc-time.c +++ b/locale/lc-time.c @@ -1,5 +1,5 @@ /* Define current locale data for LC_TIME category. - Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -250,6 +250,63 @@ _nl_get_walt_digit (unsigned int number) } +int +_nl_parse_alt_digit (const char **strp) +{ + const char *str = *strp; + int result = -1; + size_t cnt; + size_t maxlen = 0; + + __libc_lock_lock (__libc_setlocale_lock); + + if (alt_digits_initialized == 0) + { + alt_digits_initialized = 1; + + if (alt_digits == NULL) + alt_digits = malloc (100 * sizeof (const char *)); + + if (alt_digits != NULL) + { + const char *ptr = _NL_CURRENT (LC_TIME, ALT_DIGITS); + + if (alt_digits != NULL) + for (cnt = 0; cnt < 100; ++cnt) + { + alt_digits[cnt] = ptr; + + /* Skip digit format. */ + ptr = strchr (ptr, '\0') + 1; + } + } + } + + /* Matching is not unambiguos. The alternative digits could be like + I, II, III, ... and the first one is a substring of the second + and third. Therefore we must keep on searching until we found + the longest possible match. Note that this is not specified in + the standard. */ + for (cnt = 0; cnt < 100; ++cnt) + { + size_t len = strlen (alt_digits[cnt]); + + if (len > maxlen && strncmp (alt_digits[cnt], str, len) == 0) + { + maxlen = len; + result = (int) cnt; + } + } + + __libc_lock_unlock (__libc_setlocale_lock); + + if (result != -1) + *strp += maxlen; + + return result; +} + + static void free_mem (void) { diff --git a/locale/localeinfo.h b/locale/localeinfo.h index 24ddabed71..e7528e9edb 100644 --- a/locale/localeinfo.h +++ b/locale/localeinfo.h @@ -205,6 +205,9 @@ extern const char *_nl_get_alt_digit (unsigned int number); /* Similar, but now for wide characters. */ extern const wchar_t *_nl_get_walt_digit (unsigned int number); +/* Parse string as alternative digit and return numeric value. */ +extern int _nl_parse_alt_digit (const char **strp); + /* Postload processing. */ extern void _nl_postload_ctype (void); extern void _nl_postload_time (void); |