diff options
Diffstat (limited to 'extra/locale/programs/locale.c')
-rw-r--r-- | extra/locale/programs/locale.c | 466 |
1 files changed, 466 insertions, 0 deletions
diff --git a/extra/locale/programs/locale.c b/extra/locale/programs/locale.c new file mode 100644 index 000000000..0ec9515fb --- /dev/null +++ b/extra/locale/programs/locale.c @@ -0,0 +1,466 @@ +/* + * + * Copyright (c) 2008 STMicroelectronics Ltd + * Filippo Arcidiacono (filippo.arcidiacono@st.com) + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + * + * A 'locale' command implementation for uClibc. + * + */ + + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <langinfo.h> +#include <getopt.h> + +typedef struct { + unsigned char idx_name; + char dot_cs; /* 0 if no codeset specified */ + char cs; + unsigned char lc_ctype_row; + unsigned char lc_numeric_row; + unsigned char lc_monetary_row; + unsigned char lc_time_row; + unsigned char lc_collate_row; + unsigned char lc_messages_row; +} locale_entry; + +/* Need to include this before locale.h and xlocale.h! */ +#include <bits/uClibc_locale.h> + +#undef CODESET_LIST +#define CODESET_LIST (__locale_mmap->codeset_list) +#include <locale.h> +#define LOCALE_NAMES (__locale_mmap->locale_names5) +#define LOCALES (__locale_mmap->locales) +#define LOCALE_AT_MODIFIERS (__locale_mmap->locale_at_modifiers) +#define CATEGORY_NAMES (__locale_mmap->lc_names) + +#define GET_CODESET_NAME(N) (CODESET_LIST + *(CODESET_LIST + N - 3)) +#define GET_LOCALE_ENTRY(R) (locale_entry *)(LOCALES + (__LOCALE_DATA_WIDTH_LOCALES * R)) +#define GET_CATEGORY_NAME(X) (CATEGORY_NAMES + *(CATEGORY_NAMES + X)) +#define GET_LOCALE_NAME(I) (const char *)(LOCALE_NAMES + 5 * (I - 1)) + +static const char utf8[] = "UTF-8"; +static const char ascii[] = "ASCII"; + +/* If set print the name of the category. */ +static int show_category_name = 0; + +/* If set print the name of the item. */ +static int show_keyword_name = 0; + +/* If set print the usage command. */ +static int show_usage = 0; + +/* Print names of all available locales. */ +static int do_all = 0; + +/* Print names of all available character maps. */ +static int do_charmaps = 0; + +static int remaining = 0; + +/* We can map the types of the entries into a few categories. */ +enum value_type +{ + none, + string, + stringarray, + byte, + bytearray, + word, + stringlist, + wordarray, + wstring, + wstringarray, + wstringlist +}; + +/* Definition of the data structure which represents a category and its + items. */ +struct category +{ + int cat_id; + const char *name; + size_t number; + struct cat_item + { + int item_id; + const char *name; + enum { std, opt } status; + enum value_type value_type; + int min; + int max; + } *item_desc; +}; + +/* Simple helper macro. */ +#define NELEMS(arr) ((sizeof (arr)) / (sizeof (arr[0]))) + +/* For some tricky stuff. */ +#define NO_PAREN(Item, More...) Item, ## More + +/* We have all categories defined in `categories.def'. Now construct + the description and data structure used for all categories. */ +#define DEFINE_ELEMENT(Item, More...) { Item, ## More }, +#define DEFINE_CATEGORY(category, name, items, postload) \ + static struct cat_item category##_desc[] = \ + { \ + NO_PAREN items \ + }; + +#include "categories.def" +#undef DEFINE_CATEGORY + +static struct category category[] = + { +#define DEFINE_CATEGORY(category, name, items, postload) \ + [category] = { _NL_NUM_##category, name, NELEMS (category##_desc), \ + category##_desc }, +#include "categories.def" +#undef DEFINE_CATEGORY + }; +#define NCATEGORIES NELEMS (category) + +static void usage(const char *name); +static void usage(const char *name) +{ + const char *s; + + s = basename(name); + fprintf(stderr, + "Usage: %s [-ck] [--category-name] [--keyword-name] [--help] NAME\n" + "or: %s [OPTION...] [-a|-m] [--all-locales] [--charmaps] \n", s, s); +} + +static int argp_parse(int argc, char *argv[]); +static int argp_parse(int argc, char *argv[]) +{ + static const struct option long_options[] = + { + {"all-locales", no_argument, NULL, 'a'}, + {"charmaps", no_argument, NULL, 'm'}, + {"category-name", no_argument, NULL, 'c'}, + {"keyword-name", no_argument, NULL, 'k'}, + {"help", no_argument, NULL, 'h'}, + {NULL, 0, NULL, 0 } + }; + int c; + char *progname; + + progname = *argv; + while ((c = getopt_long (argc, argv, "amckh", long_options, NULL)) >= 0) + switch (c) + { + case 'a': + do_all = 1; + break; + case 'c': + show_category_name = 1; + break; + case 'm': + do_charmaps = 1; + break; + case 'k': + show_keyword_name = 1; + break; + case 'h': + show_usage = 1; + break; + case '?': + fprintf (stderr, "Unknown option.\n"); + usage(progname); + return 1; + + default: + fprintf (stderr, "This should never happen!\n"); + return 1; + } + + remaining = optind; + + return 0; +} + +static unsigned const char * find_at(char c); +static unsigned const char * find_at(char c) +{ + const unsigned char *q; + + q = LOCALE_AT_MODIFIERS; + do { + if (q[1] == c) { + return (unsigned const char *)q+2; + } + q += 2 + *q; + } while (*q); + + return NULL; +} + +static void find_locale_string(locale_entry *loc_rec, char *loc) +{ + char at = 0; + unsigned char idx; + uint16_t dotcs, cs; + + idx = loc_rec->idx_name; + if (!idx) { + *loc++ = 'C'; /* jump the first locale (C) */ + *loc = '\0'; + } + else { + dotcs = (uint16_t) loc_rec->dot_cs; + cs = (uint16_t) loc_rec->cs;; + loc = strncpy(loc, GET_LOCALE_NAME(idx), 5); + + if (loc[2] == '_') { + sprintf(loc, "%5.5s%c%s\0", loc, (dotcs != 0) ? '.' : ' ', + (cs == 1) ? ascii : ((cs == 2) ? utf8 : GET_CODESET_NAME(cs))); + } else { + at = loc[2]; + loc[2] = '_'; + sprintf(loc, "%5.5s%c%s@%s\0", loc, (dotcs != 0) ? '.' : ' ', + (cs == 1) ? ascii : ((cs == 2) ? utf8 : GET_CODESET_NAME(cs)), + find_at(at)); + } + } +} + +static void list_locale(void); +static void list_locale() +{ + char loc[40]; + uint16_t n = 0; + locale_entry *locales = (locale_entry *)LOCALES; + + do { + find_locale_string(locales, loc); + printf("%s\n", loc); + ++n; + locales++; + } while (n < __LOCALE_DATA_NUM_LOCALES); +} + +static void list_charmaps(void); +static void list_charmaps() +{ + unsigned const char *cl; + + cl = CODESET_LIST; + do { + printf("%s\n", CODESET_LIST + *cl); + } while (*++cl); + +} + +static void print_item (struct cat_item *item); +static void print_item (struct cat_item *item) +{ + switch (item->value_type) + { + case string: + if (show_keyword_name) + printf ("%s=\"", item->name); + fputs (nl_langinfo (item->item_id) ? : "", stdout); + if (show_keyword_name) + putchar ('"'); + putchar ('\n'); + break; + case stringarray: + { + int cnt; + const char *val; + + if (show_keyword_name) + printf ("%s=\"", item->name); + + for (cnt = 0; cnt < item->max - 1; ++cnt) + { + val = nl_langinfo (item->item_id + cnt); + if (val != NULL) + fputs (val, stdout); + putchar (';'); + } + + val = nl_langinfo (item->item_id + cnt); + if (val != NULL) + fputs (val, stdout); + + if (show_keyword_name) + putchar ('"'); + putchar ('\n'); + } + break; + case stringlist: + { + int first = 1; + const char *val = nl_langinfo (item->item_id) ? : ""; + int cnt; + + if (show_keyword_name) + printf ("%s=", item->name); + + for (cnt = 0; cnt < item->max && *val != '\0'; ++cnt) + { + printf ("%s%s%s%s", first ? "" : ";", + show_keyword_name ? "\"" : "", val, + show_keyword_name ? "\"" : ""); + val = strchr (val, '\0') + 1; + first = 0; + } + putchar ('\n'); + } + break; + case byte: + { + const char *val = nl_langinfo (item->item_id); + + if (show_keyword_name) + printf ("%s=", item->name); + + if (val != NULL) + printf ("%d", *val == '\177' ? -1 : *val); + putchar ('\n'); + } + break; + case bytearray: + { + const char *val = nl_langinfo (item->item_id); + int cnt = val ? strlen (val) : 0; + + if (show_keyword_name) + printf ("%s=", item->name); + + while (cnt > 1) + { + printf ("%d;", *val == '\177' ? -1 : *val); + --cnt; + ++val; + } + + printf ("%d\n", cnt == 0 || *val == '\177' ? -1 : *val); + } + break; + case word: + { + union { unsigned int word; char *string; } val; + val.string = nl_langinfo (item->item_id); + if (show_keyword_name) + printf ("%s=", item->name); + + printf ("%d\n", val.word); + } + break; + case wstring: + case wstringarray: + case wstringlist: + /* We don't print wide character information since the same + information is available in a multibyte string. */ + default: + break; + + } +} + +/* Show the information request for NAME. */ +static void show_info(const char *name); +static void show_info(const char *name) +{ + size_t cat_no, item_no; + const unsigned char *cat_name; + + /* Now all categories in an unspecified order. */ + for (cat_no = 0; cat_no < __LC_ALL; ++cat_no) { + cat_name = GET_CATEGORY_NAME(cat_no); + if (strcmp (name, (const char *)cat_name) == 0) { + if (show_category_name) + printf("%s\n", name); + + for (item_no = 0; item_no < category[cat_no].number; ++item_no) + print_item (&category[cat_no].item_desc[item_no]); + + return; + } + + for (item_no = 0; item_no < category[cat_no].number; ++item_no) + if (strcmp (name, category[cat_no].item_desc[item_no].name) == 0) { + if (show_category_name != 0) + puts (category[cat_no].name); + + print_item (&category[cat_no].item_desc[item_no]); + return; + } + } +} + +static void show_locale_vars(void); +static void show_locale_vars() +{ + size_t cat_no; + int row; /* locale row */ + const char *lcall = getenv ("LC_ALL"); + const char *lang = getenv ("LANG") ? : ""; + unsigned char *cur_loc = __global_locale->cur_locale + 1; + char loc_name[40]; + locale_entry *locales; + + /* LANG has to be the first value. */ + printf ("LANG=%s\n", lang); + + /* Now all categories in an unspecified order. */ + for (cat_no = 0; cat_no < __LC_ALL; ++cat_no) { + row = (((int)(*cur_loc & 0x7f)) << 7) + (cur_loc[1] & 0x7f); +/* assert(row < __LOCALE_DATA_NUM_LOCALES); */ + + locales = GET_LOCALE_ENTRY(row); + find_locale_string(locales, loc_name); + printf("%s=%s\n", GET_CATEGORY_NAME(cat_no), loc_name); + + cur_loc += 2; + } + + /* The last is the LC_ALL value. */ + printf ("LC_ALL=%s\n", lcall ? : ""); +} + +int +main (int argc, char *argv[]) +{ + /* Parse and process arguments. */ + if (argp_parse(argc, argv)) + return 1; + + if (do_all) { + list_locale(); + exit (EXIT_SUCCESS); + } + + if (do_charmaps) { + list_charmaps(); + exit (EXIT_SUCCESS); + } + + if (show_usage) { + usage(*argv); + exit (EXIT_SUCCESS); + } + + /* If no real argument is given we have to print the contents of the + current locale definition variables. These are LANG and the LC_*. */ + if (remaining == argc && show_category_name == 0 && show_keyword_name == 0) { + show_locale_vars (); + exit (EXIT_SUCCESS); + } + + /* Process all given names. */ + while (remaining < argc) + show_info (argv[remaining++]); + + exit (EXIT_SUCCESS); + +} |