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glibc/locale/programs/locfile.c

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/* Copyright (C) 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <locale.h>
#include <malloc.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include "locfile.h"
#include "linereader.h"
#include "localeinfo.h"
#include "locales.h"
/* Uncomment the following line in the production version. */
/* #define NDEBUG 1 */
#include <assert.h>
/* Define the lookup function. */
#include "locfile-kw.h"
/* Some useful macros. */
#define MIN(a, b) (__extension__ ({ typeof (a) _a = (a); \
typeof (b) _b = (b); \
_a < _b ? _a : _b; }))
void *xmalloc (size_t __n);
char *xstrdup (const char *__str);
struct localedef_t *
locfile_read (const char *filename, struct charset_t *charset)
{
struct linereader *ldfile;
struct localedef_t *result;
int state;
enum token_t expected_tok = tok_none;
const char *expected_str = NULL;
enum token_t ctype_tok_sym = tok_none;
const char *ctype_tok_str = NULL;
int copy_category = 0;
int cnt;
/* Allocate space for result. */
result = (struct localedef_t *) xmalloc (sizeof (struct localedef_t));
memset (result, '\0', sizeof (struct localedef_t));
ldfile = lr_open (filename, locfile_hash);
if (ldfile == NULL)
{
if (filename[0] != '/')
{
char path[strlen (filename) + 1 + sizeof (LOCSRCDIR)];
stpcpy (stpcpy (stpcpy (path, LOCSRCDIR), "/"), filename);
ldfile = lr_open (path, locfile_hash);
}
if (ldfile == NULL)
{
result->failed = 1;
return result;
}
}
#define HANDLE_COPY(category, token, string) \
if (nowtok == tok_copy) \
{ \
copy_category = category; \
expected_tok = token; \
expected_str = string; \
state = 8; \
continue; \
} \
++state
#define LOCALE_PROLOG(token, string) \
if (nowtok == tok_eol) \
/* Ignore empty lines. */ \
continue; \
if (nowtok == tok_end) \
{ \
expected_tok = token; \
expected_str = string; \
state = 4; \
continue; \
} \
if (nowtok == tok_copy) \
goto only_copy;
#define READ_STRING(fn, errlabel) \
do \
{ \
arg = lr_token (ldfile, charset); \
if (arg->tok != tok_string) \
goto errlabel; \
fn (ldfile, result, nowtok, arg, charset); \
lr_ignore_rest (ldfile, 1); \
} \
while (0)
#define READ_STRING_LIST(fn, errlabel) \
do \
{ \
arg = lr_token (ldfile, charset); \
while (arg->tok == tok_string) \
{ \
fn (ldfile, result, nowtok, arg, charset); \
arg = lr_token (ldfile, charset); \
if (arg->tok != tok_semicolon) \
break; \
arg = lr_token (ldfile, charset); \
} \
if (arg->tok != tok_eol) \
goto errlabel; \
} \
while (0)
#define READ_NUMBER(fn, errlabel) \
do \
{ \
arg = lr_token (ldfile, charset); \
if (arg->tok != tok_minus1 && arg->tok != tok_number) \
goto errlabel; \
fn (ldfile, result, nowtok, arg, charset); \
lr_ignore_rest (ldfile, 1); \
} \
while (0)
#define READ_NUMBER_LIST(fn, errlabel) \
do \
{ \
arg = lr_token (ldfile, charset); \
while (arg->tok == tok_minus1 || arg->tok == tok_number) \
{ \
fn (ldfile, result, nowtok, arg, charset); \
arg = lr_token (ldfile, charset); \
if (arg->tok != tok_semicolon) \
break; \
arg = lr_token (ldfile, charset); \
} \
if (arg->tok != tok_eol) \
goto errlabel; \
} \
while (0)
#define SYNTAX_ERROR(string) \
lr_error (ldfile, string); \
lr_ignore_rest (ldfile, 0);
/* Parse locale definition file and store result in RESULT. */
state = 1;
while (1)
{
/* What's on? */
struct token *now = lr_token (ldfile, charset);
enum token_t nowtok = now->tok;
struct token *arg;
if (nowtok == tok_eof)
break;
switch (state)
{
case 1:
/* The beginning. We expect the special declarations, EOL or
the start of any locale. */
if (nowtok == tok_eol)
/* Ignore empty lines. */
continue;
switch (nowtok)
{
case tok_escape_char:
case tok_comment_char:
/* We need an argument. */
arg = lr_token (ldfile, charset);
if (arg->tok != tok_ident)
{
SYNTAX_ERROR (_("bad argument"));
continue;
}
if (arg->val.str.len != 1)
{
lr_error (ldfile, _("\
argument to `%s' must be a single character"),
nowtok == tok_escape_char ? "escape_char"
: "comment_char");
lr_ignore_rest (ldfile, 0);
continue;
}
if (nowtok == tok_escape_char)
ldfile->escape_char = *arg->val.str.start;
else
ldfile->comment_char = *arg->val.str.start;
break;
case tok_lc_ctype:
state = 2;
break;
case tok_lc_collate:
state = 10;
break;
case tok_lc_monetary:
state = 20;
break;
case tok_lc_numeric:
state = 30;
break;
case tok_lc_time:
state = 40;
break;
case tok_lc_messages:
state = 50;
break;
default:
SYNTAX_ERROR (_("\
syntax error: not inside a locale definition section"));
continue;
}
lr_ignore_rest (ldfile, 1);
continue;
case 2:
HANDLE_COPY (LC_CTYPE, tok_lc_ctype, "LC_CYTPE");
ctype_startup (ldfile, result, charset);
/* FALLTHROUGH */
case 3:
/* Here we accept all the character classes, tolower/toupper,
and following ANSI C:1995 self-defined classes. */
LOCALE_PROLOG (tok_lc_ctype, "LC_CTYPE");
if (nowtok == tok_charclass)
{
READ_STRING_LIST (ctype_class_new, bad_new_charclass);
continue;
bad_new_charclass:
SYNTAX_ERROR (_("\
syntax error in definition of new character class"));
continue;
}
if (nowtok == tok_charconv)
{
READ_STRING_LIST (ctype_map_new, bad_new_charconv);
continue;
bad_new_charconv:
SYNTAX_ERROR (_("\
syntax error in definition of new character map"));
continue;
}
if (nowtok == tok_upper || nowtok == tok_lower
|| nowtok == tok_alpha || nowtok == tok_digit
|| nowtok == tok_alnum || nowtok == tok_space
|| nowtok == tok_cntrl || nowtok == tok_punct
|| nowtok == tok_graph || nowtok == tok_print
|| nowtok == tok_xdigit || nowtok == tok_blank)
{
ctype_tok_sym = nowtok;
ctype_tok_str = NULL;
state = 5;
continue;
}
if (nowtok == tok_toupper|| nowtok == tok_tolower)
{
ctype_tok_sym = nowtok;
ctype_tok_str = NULL;
state = 6;
continue;
}
if (nowtok != tok_ident)
goto bad_charclass;
/* We possibly have a self-defined character class. */
if (ctype_is_charclass (ldfile, result, now->val.str.start))
{
ctype_tok_sym = nowtok;
ctype_tok_str = now->val.str.start;
state = 5;
continue;
}
/* ...or a self-defined character map. */
if (ctype_is_charconv (ldfile, result, now->val.str.start))
{
ctype_tok_sym = nowtok;
ctype_tok_str = now->val.str.start;
state = 6;
continue;
}
SYNTAX_ERROR (_("syntax error in definition of LC_CTYPE category"));
continue;
case 4:
/* Handle `END xxx'. */
if (nowtok != expected_tok)
lr_error (ldfile, _("\
`%1$s' definition does not end with `END %1$s'"), expected_str);
lr_ignore_rest (ldfile, nowtok == expected_tok);
state = 1;
continue;
case 5:
/* Here we expect a semicolon separated list of bsymbols. The
bit to be set in the word is given in CHARCLASS_BIT. */
arg = now;
ctype_class_start (ldfile, result, ctype_tok_sym, ctype_tok_str,
charset);
while (arg->tok != tok_eol)
{
/* Any token other than a bsymbol is an error. */
if (arg->tok != tok_bsymbol)
{
bad_charclass:
SYNTAX_ERROR (_("\
syntax error in character class definition"));
break;
}
/* Lookup value for token and write into array. */
ctype_class_from (ldfile, result, arg, charset);
arg = lr_token (ldfile, charset);
if (arg->tok == tok_semicolon)
arg = lr_token (ldfile, charset);
else if (arg->tok != tok_eol)
goto bad_charclass;
/* Look for ellipsis. */
if (arg->tok == tok_ellipsis)
{
arg = lr_token (ldfile, charset);
if (arg->tok != tok_semicolon)
goto bad_charclass;
arg = lr_token (ldfile, charset);
if (arg->tok != tok_bsymbol)
goto bad_charclass;
/* Write range starting at LAST to ARG->VAL. */
ctype_class_to (ldfile, result, arg, charset);
arg = lr_token (ldfile, charset);
if (arg->tok == tok_semicolon)
arg = lr_token (ldfile, charset);
else if (arg->tok != tok_eol)
goto bad_charclass;
}
}
/* Mark class as already seen. */
ctype_class_end (ldfile, result);
state = 3;
continue;
case 6:
/* Here we expect a list of character mappings. Note: the
first opening brace is already matched. */
ctype_map_start (ldfile, result, ctype_tok_sym, ctype_tok_str,
charset);
while (1)
{
/* Match ( bsymbol , bsymbol ) */
if (now->tok != tok_open_brace)
goto bad_charconv;
now = lr_token (ldfile, charset);
if (now->tok != tok_bsymbol)
{
bad_charconv:
SYNTAX_ERROR (_("\
syntax error in character conversion definition"));
state = 3;
break;
}
/* Lookup arg and assign to FROM. */
ctype_map_from (ldfile, result, now, charset);
now = lr_token (ldfile, charset);
if (now->tok != tok_comma)
goto bad_charconv;
now = lr_token (ldfile, charset);
if (now->tok != tok_bsymbol)
goto bad_charconv;
/* Lookup arg and assign to TO. */
ctype_map_to (ldfile, result, now, charset);
now = lr_token (ldfile, charset);
if (now->tok != tok_close_brace)
goto bad_charconv;
now = lr_token (ldfile, charset);
if (now->tok == tok_eol)
{
state = 3;
break;
}
if (now->tok != tok_semicolon)
goto bad_charconv;
now = lr_token (ldfile, charset);
}
ctype_map_end (ldfile, result);
continue;
case 8:
{
/* We have seen `copy'. First match the argument. */
int warned = 0;
if (nowtok != tok_string)
lr_error (ldfile, _("expect string argument for `copy'"));
else
def_to_process (now->val.str.start, 1 << copy_category);
lr_ignore_rest (ldfile, nowtok == tok_string);
/* The rest of the line must be empty
and the next keyword must be `END xxx'. */
while (lr_token (ldfile, charset)->tok != tok_end)
{
if (warned == 0)
{
only_copy:
lr_error (ldfile, _("\
no other keyword shall be specified when `copy' is used"));
warned = 1;
}
lr_ignore_rest (ldfile, 0);
}
state = 4;
}
continue;
case 10:
HANDLE_COPY (LC_COLLATE, tok_lc_collate, "LC_COLLATE");
collate_startup (ldfile, result, charset);
/* FALLTHROUGH */
case 11:
/* Process the LC_COLLATE section. We expect `END LC_COLLATE'
any of the collation specifications, or any bsymbol. */
LOCALE_PROLOG (tok_lc_collate, "LC_COLLATE");
if (nowtok == tok_order_start)
{
state = 12;
continue;
}
if (nowtok != tok_collating_element
&& nowtok != tok_collating_symbol)
{
bad_collation:
lr_error (ldfile, _("\
syntax error in collation definition"));
lr_ignore_rest (ldfile, 0);
continue;
}
/* Get argument. */
arg = lr_token (ldfile, charset);
if (arg->tok != tok_bsymbol)
{
lr_error (ldfile, _("\
collation symbol expected after `%s'"),
nowtok == tok_collating_element
? "collating-element" : "collating-symbol");
lr_ignore_rest (ldfile, 0);
continue;
}
if (nowtok == tok_collating_element)
{
/* Save to-value as new name. */
collate_element_to (ldfile, result, arg, charset);
arg = lr_token (ldfile, charset);
if (arg->tok != tok_from)
{
lr_error (ldfile, _("\
`from' expected after first argument to `collating-element'"));
lr_ignore_rest (ldfile, 0);
continue;
}
arg = lr_token (ldfile, charset);
if (arg->tok != tok_string)
{
lr_error (ldfile, _("\
from-value of `collating-element' must be a string"));
lr_ignore_rest (ldfile, 0);
continue;
}
/* Enter new collating element. */
collate_element_from (ldfile, result, arg, charset);
}
else
/* Enter new collating symbol into table. */
collate_symbol (ldfile, result, arg, charset);
lr_ignore_rest (ldfile, 1);
continue;
case 12:
/* We parse the rest of the line containing `order_start'.
In any case we continue with parsing the symbols. */
state = 13;
cnt = 0;
while (now->tok != tok_eol)
{
int collation_method = 0;
++cnt;
do
{
if (now->tok == tok_forward)
collation_method |= sort_forward;
else if (now->tok == tok_backward)
collation_method |= sort_backward;
else if (now->tok == tok_position)
collation_method |= sort_position;
else
{
lr_error (ldfile, _("unknown collation directive"));
lr_ignore_rest (ldfile, 0);
continue;
}
now = lr_token (ldfile, charset);
}
while (now->tok == tok_comma
&& (now == lr_token (ldfile, charset) != tok_none));
/* Check for consistency: forward and backwards are
mutually exclusive. */
if ((collation_method & sort_forward) != 0
&& (collation_method & sort_backward) != 0)
{
lr_error (ldfile, _("\
sorting order `forward' and `backward' are mutually exclusive"));
/* The recover clear the backward flag. */
collation_method &= ~sort_backward;
}
/* ??? I don't know whether this is correct but while
thinking about the `strcoll' functions I found that I
need a direction when performing position depended
collation. So I assume here that implicitly the
direction `forward' is given when `position' alone is
written. --drepper */
if (collation_method == sort_position)
collation_method |= sort_forward;
/* Enter info about next collation order. */
collate_new_order (ldfile, result, collation_method);
if (now->tok != tok_eol && now->tok != tok_semicolon)
{
lr_error (ldfile, _("\
syntax error in `order_start' directive"));
lr_ignore_rest (ldfile, 0);
break;
}
if (now->tok == tok_semicolon)
now = lr_token (ldfile, charset);
}
/* If no argument to `order_start' is given, one `forward'
argument is implicitely assumed. */
if (cnt == 0)
collate_new_order (ldfile, result, sort_forward);
/* We now know about all sorting rules. */
collate_build_arrays (ldfile, result);
continue;
case 13:
/* We read one symbol a line until `order_end' is found. */
{
static int last_correct = 1;
if (nowtok == tok_order_end)
{
state = 14;
lr_ignore_rest (ldfile, 1);
continue;
}
/* Ignore empty lines. */
if (nowtok == tok_eol)
continue;
if (nowtok != tok_bsymbol && nowtok != tok_undefined
&& nowtok != tok_ellipsis)
{
if (last_correct == 1)
{
lr_error (ldfile, _("\
syntax error in collating order definition"));
last_correct = 0;
}
lr_ignore_rest (ldfile, 0);
continue;
}
else
{
last_correct = 1;
/* Remember current token. */
if (collate_order_elem (ldfile, result, now, charset) < 0)
continue;
}
/* Read optional arguments. */
arg = lr_token (ldfile, charset);
while (arg->tok != tok_eol)
{
if (arg->tok != tok_ignore && arg->tok != tok_ellipsis
&& arg->tok != tok_bsymbol && arg->tok != tok_string)
break;
if (arg->tok == tok_ignore || arg->tok == tok_ellipsis
|| arg->tok == tok_string)
{
/* Call handler for simple weights. */
if (collate_simple_weight (ldfile, result, arg, charset)
< 0)
goto illegal_weight;
arg = lr_token (ldfile, charset);
}
else
do
{
/* Collect char. */
int ok = collate_weight_bsymbol (ldfile, result, arg,
charset);
if (ok < 0)
goto illegal_weight;
arg = lr_token (ldfile, charset);
}
while (arg->tok == tok_bsymbol);
/* Are there more weights? */
if (arg->tok != tok_semicolon)
break;
/* Yes, prepare next weight. */
if (collate_next_weight (ldfile, result) < 0)
goto illegal_weight;
arg = lr_token (ldfile, charset);
}
if (arg->tok != tok_eol)
{
SYNTAX_ERROR (_("syntax error in order specification"));
}
collate_end_weight (ldfile, result);
illegal_weight:
}
continue;
case 14:
/* Following to the `order_end' keyword we don't expect
anything but the `END'. */
if (nowtok == tok_eol)
continue;
if (nowtok != tok_end)
goto bad_collation;
expected_tok = tok_lc_collate;
expected_str = "LC_COLLATE";
state = 4;
ldfile->translate_strings = 1;
continue;
case 20:
HANDLE_COPY (LC_MONETARY, tok_lc_monetary, "LC_MONETARY");
monetary_startup (ldfile, result, charset);
/* FALLTHROUGH */
case 21:
LOCALE_PROLOG (tok_lc_monetary, "LC_MONETARY");
switch (nowtok)
{
case tok_int_curr_symbol:
case tok_currency_symbol:
case tok_mon_decimal_point:
case tok_mon_thousands_sep:
case tok_positive_sign:
case tok_negative_sign:
READ_STRING (monetary_add, bad_monetary);
break;
case tok_int_frac_digits:
case tok_frac_digits:
case tok_p_cs_precedes:
case tok_p_sep_by_space:
case tok_n_cs_precedes:
case tok_n_sep_by_space:
case tok_p_sign_posn:
case tok_n_sign_posn:
READ_NUMBER (monetary_add, bad_monetary);
break;
case tok_mon_grouping:
/* We have a semicolon separated list of integers. */
READ_NUMBER_LIST (monetary_add, bad_monetary);
break;
default:
bad_monetary:
SYNTAX_ERROR (_("syntax error in monetary locale definition"));
}
continue;
case 30:
HANDLE_COPY (LC_NUMERIC, tok_lc_numeric, "LC_NUMERIC");
numeric_startup (ldfile, result, charset);
/* FALLTHROUGH */
case 31:
LOCALE_PROLOG (tok_lc_numeric, "LC_NUMERIC");
switch (nowtok)
{
case tok_decimal_point:
case tok_thousands_sep:
READ_STRING (numeric_add, bad_numeric);
break;
case tok_grouping:
/* We have a semicolon separated list of integers. */
READ_NUMBER_LIST (numeric_add, bad_numeric);
break;
default:
bad_numeric:
SYNTAX_ERROR (_("syntax error in numeric locale definition"));
}
continue;
case 40:
HANDLE_COPY (LC_TIME, tok_lc_time, "LC_TIME");
time_startup (ldfile, result, charset);
/* FALLTHROUGH */
case 41:
LOCALE_PROLOG (tok_lc_time, "LC_TIME");
switch (nowtok)
{
case tok_abday:
case tok_day:
case tok_abmon:
case tok_mon:
case tok_am_pm:
case tok_alt_digits:
case tok_era:
READ_STRING_LIST (time_add, bad_time);
continue;
case tok_d_t_fmt:
case tok_d_fmt:
case tok_t_fmt:
case tok_t_fmt_ampm:
case tok_era_year:
case tok_era_d_t_fmt:
case tok_era_d_fmt:
case tok_era_t_fmt:
READ_STRING (time_add, bad_time);
break;
default:
bad_time:
SYNTAX_ERROR (_("syntax error in time locale definition"));
}
continue;
case 50:
HANDLE_COPY (LC_MESSAGES, tok_lc_messages, "LC_MESSAGES");
messages_startup (ldfile, result, charset);
/* FALLTHROUGH */
case 51:
LOCALE_PROLOG (tok_lc_messages, "LC_MESSAGES");
switch (nowtok)
{
case tok_yesexpr:
case tok_noexpr:
case tok_yesstr:
case tok_nostr:
READ_STRING (messages_add, bad_message);
break;
default:
bad_message:
SYNTAX_ERROR (_("syntax error in message locale definition"));
}
continue;
default:
error (5, 0, _("%s: error in state machine"), __FILE__);
/* NOTREACHED */
}
break;
}
/* We read all of the file. */
lr_close (ldfile);
/* Let's see what information is available. */
for (cnt = LC_CTYPE; cnt <= LC_MESSAGES; ++cnt)
if (result->categories[cnt].generic != NULL)
result->avail |= 1 << cnt;
return result;
}
void
check_all_categories (struct localedef_t *locale, struct charset_t *charset)
{
/* Call the finishing functions for all locales. */
if ((locale->binary & (1 << LC_CTYPE)) == 0)
ctype_finish (locale, charset);
if ((locale->binary & (1 << LC_COLLATE)) == 0)
collate_finish (locale, charset);
if ((locale->binary & (1 << LC_MONETARY)) == 0)
monetary_finish (locale);
if ((locale->binary & (1 << LC_NUMERIC)) == 0)
numeric_finish (locale);
if ((locale->binary & (1 << LC_TIME)) == 0)
time_finish (locale);
if ((locale->binary & (1 << LC_MESSAGES)) == 0)
messages_finish (locale);
}
void
write_all_categories (struct localedef_t *locale, struct charset_t *charset,
const char *output_path)
{
/* Call all functions to write locale data. */
ctype_output (locale, charset, output_path);
collate_output (locale, charset, output_path);
monetary_output (locale, output_path);
numeric_output (locale, output_path);
time_output (locale, output_path);
messages_output (locale, output_path);
}
void
write_locale_data (const char *output_path, const char *category,
size_t n_elem, struct iovec *vec)
{
size_t cnt, step, maxiov;
int fd;
char *fname;
fname = malloc (strlen (output_path) + 2 * strlen (category) + 6);
if (fname == NULL)
error (5, errno, _("memory exhausted"));
/* Normally we write to the directory pointed to by the OUTPUT_PATH.
But for LC_MESSAGES we have to take care for the translation
data. This means we need to have a directory LC_MESSAGES in
which we place the file under the name SYS_LC_MESSAGES. */
sprintf (fname, "%s%s", output_path, category);
if (strcmp (category, "LC_MESSAGES") == 0)
{
struct stat st;
if (stat (fname, &st) < 0)
{
if (mkdir (fname, 0777) < 0)
fd = creat (fname, 0666);
else
{
fd = -1;
errno = EISDIR;
}
}
else if (S_ISREG (st.st_mode))
fd = creat (fname, 0666);
else
{
fd = -1;
errno = EISDIR;
}
}
else
fd = creat (fname, 0666);
if (fd == -1)
{
int save_err = errno;
if (errno == EISDIR)
{
sprintf (fname, "%1$s%2$s/SYS_%2$s", output_path, category);
fd = creat (fname, 0666);
if (fd == -1)
save_err = errno;
}
if (fd == -1)
{
error (0, save_err, _("\
cannot open output file `%s' for category `%s'"),
fname, category);
return;
}
}
free (fname);
#ifdef UIO_MAXIOV
maxiov = UIO_MAXIOV;
#else
maxiov = sysconf (_SC_UIO_MAXIOV);
#endif
/* Write the data using writev. But we must take care for the
limitation of the implementation. */
for (cnt = 0; cnt < n_elem; cnt += step)
{
step = n_elem - cnt;
if (maxiov > 0)
step = MIN (maxiov, step);
if (writev (fd, &vec[cnt], step) < 0)
{
error (0, errno, _("failure while writing data for category `%s'"),
category);
break;
}
}
close (fd);
}
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