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/* Extract some translations of a translation catalog.
Copyright (C) 2001 Free Software Foundation, Inc.
Written by Bruno Haible <haible@clisp.cons.org>, 2001.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; 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 <getopt.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_LIMITS_H
# include <limits.h>
#endif
#include "dir-list.h"
#include "error.h"
#include "progname.h"
#include "message.h"
#include "read-po.h"
#include "write-po.h"
#include "str-list.h"
#include "msgl-charset.h"
#include "system.h"
#include "full-write.h"
#include "findprog.h"
#include "pipe.h"
#include "wait-process.h"
#include "libgettext.h"
#define _(str) gettext (str)
/* Force output of PO file even if empty. */
static int force_po;
/* Selected source files. */
static string_list_ty *location_files;
/* Selected domain names. */
static string_list_ty *domain_names;
/* Arguments to be passed to the grep subprocesses. */
static string_list_ty *grep_args[2];
/* Pathname of the grep program. */
static const char *grep_path;
/* Argument lists for the grep program. */
static char **grep_argv[2];
/* Long options. */
static const struct option long_options[] =
{
{ "add-location", no_argument, &line_comment, 1 },
{ "directory", required_argument, NULL, 'D' },
{ "domain", required_argument, NULL, 'M' },
{ "escape", no_argument, NULL, CHAR_MAX + 1 },
{ "extended-regexp", no_argument, NULL, 'E' },
{ "file", required_argument, NULL, 'f' },
{ "fixed-strings", no_argument, NULL, 'F' },
{ "force-po", no_argument, &force_po, 1 },
{ "help", no_argument, NULL, 'h' },
{ "ignore-case", no_argument, NULL, 'i' },
{ "indent", no_argument, NULL, CHAR_MAX + 2 },
{ "location", required_argument, NULL, 'N' },
{ "msgid", no_argument, NULL, 'K' },
{ "msgstr", no_argument, NULL, 'T' },
{ "no-escape", no_argument, NULL, CHAR_MAX + 3 },
{ "no-location", no_argument, &line_comment, 0 },
{ "output-file", required_argument, NULL, 'o' },
{ "regexp", required_argument, NULL, 'e' },
{ "sort-by-file", no_argument, NULL, CHAR_MAX + 4 },
{ "sort-output", no_argument, NULL, CHAR_MAX + 5 },
{ "strict", no_argument, NULL, 'S' },
{ "version", no_argument, NULL, 'V' },
{ "width", required_argument, NULL, 'w' },
{ NULL, 0, NULL, 0 }
};
/* Prototypes for local functions. */
static void no_pass PARAMS ((int opt));
static void usage PARAMS ((int status));
#ifdef EINTR
static inline int nonintr_close PARAMS ((int fd));
#endif
static bool is_string_selected PARAMS ((int grep_pass, const char *str,
size_t len));
static bool is_message_selected PARAMS ((const message_ty *mp));
static void process_message_list PARAMS ((const char *domain,
message_list_ty *mlp));
static msgdomain_list_ty *
process_msgdomain_list PARAMS ((msgdomain_list_ty *mdlp));
int
main (argc, argv)
int argc;
char **argv;
{
int opt;
bool do_help;
bool do_version;
char *output_file;
const char *input_file;
int grep_pass;
msgdomain_list_ty *result;
bool sort_by_filepos = false;
bool sort_by_msgid = false;
size_t i;
/* Set program name for messages. */
program_name = argv[0];
error_print_progname = maybe_print_progname;
#ifdef HAVE_SETLOCALE
/* Set locale via LC_ALL. */
setlocale (LC_ALL, "");
#endif
/* Set the text message domain. */
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
/* Set default values for variables. */
do_help = false;
do_version = false;
output_file = NULL;
input_file = NULL;
grep_pass = -1;
location_files = string_list_alloc ();
domain_names = string_list_alloc ();
grep_args[0] = string_list_alloc ();
grep_args[1] = string_list_alloc ();
while ((opt = getopt_long (argc, argv, "D:e:Ef:FhiKM:N:o:TVw:",
long_options, NULL))
!= EOF)
switch (opt)
{
case '\0': /* Long option. */
break;
case 'D':
dir_list_append (optarg);
break;
case 'e':
if (grep_pass < 0)
no_pass (opt);
string_list_append (grep_args[grep_pass], "-e");
string_list_append (grep_args[grep_pass], optarg);
break;
case 'E':
if (grep_pass < 0)
no_pass (opt);
string_list_append (grep_args[grep_pass], "-E");
break;
case 'f':
if (grep_pass < 0)
no_pass (opt);
string_list_append (grep_args[grep_pass], "-f");
string_list_append (grep_args[grep_pass], optarg);
break;
case 'F':
if (grep_pass < 0)
no_pass (opt);
string_list_append (grep_args[grep_pass], "-F");
break;
case 'h':
do_help = true;
break;
case 'i':
if (grep_pass < 0)
no_pass (opt);
string_list_append (grep_args[grep_pass], "-i");
break;
case 'K':
grep_pass = 0;
break;
case 'M':
string_list_append (domain_names, optarg);
break;
case 'N':
string_list_append (location_files, optarg);
break;
case 'o':
output_file = optarg;
break;
case 'S':
message_print_style_uniforum ();
break;
case 'T':
grep_pass = 1;
break;
case 'V':
do_version = true;
break;
case 'w':
{
int value;
char *endp;
value = strtol (optarg, &endp, 10);
if (endp != optarg)
message_page_width_set (value);
}
break;
case CHAR_MAX + 1:
message_print_style_escape (true);
break;
case CHAR_MAX + 2:
message_print_style_indent ();
break;
case CHAR_MAX + 3:
message_print_style_escape (false);
break;
case CHAR_MAX + 4:
sort_by_filepos = true;
break;
case CHAR_MAX + 5:
sort_by_msgid = true;
break;
default:
usage (EXIT_FAILURE);
break;
}
/* Version information is requested. */
if (do_version)
{
printf ("%s (GNU %s) %s\n", basename (program_name), PACKAGE, VERSION);
/* xgettext: no-wrap */
printf (_("Copyright (C) %s Free Software Foundation, Inc.\n\
This is free software; see the source for copying conditions. There is NO\n\
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
"),
"2001");
printf (_("Written by %s.\n"), "Bruno Haible");
exit (EXIT_SUCCESS);
}
/* Help is requested. */
if (do_help)
usage (EXIT_SUCCESS);
/* Test whether we have an .po file name as argument. */
if (optind == argc)
input_file = "-";
else if (optind + 1 == argc)
input_file = argv[optind];
else
{
error (EXIT_SUCCESS, 0, _("at most one input file allowed"));
usage (EXIT_FAILURE);
}
if (sort_by_msgid && sort_by_filepos)
error (EXIT_FAILURE, 0, _("%s and %s are mutually exclusive"),
"--sort-output", "--sort-by-file");
/* Read input file. */
result = read_po_file (input_file);
if (grep_args[0]->nitems > 0 || grep_args[1]->nitems > 0)
{
/* Warn if the current locale is not suitable for this PO file. */
compare_po_locale_charsets (result);
/* Attempt to locate the 'grep' program.
This is an optimization, to avoid that spawn/exec searches the PATH
on every call. */
grep_path = find_in_path ("grep");
}
/* Build argument lists for the 'grep' program. */
for (grep_pass = 0; grep_pass < 2; grep_pass++)
if (grep_args[grep_pass]->nitems > 0)
{
string_list_ty *args = grep_args[grep_pass];
grep_argv[grep_pass] =
(char **) xmalloc ((2 + args->nitems + 1) * sizeof (char *));
grep_argv[grep_pass][0] = (char *) grep_path;
grep_argv[grep_pass][1] = "-q";
for (i = 2; i <= args->nitems + 1; i++)
grep_argv[grep_pass][i] = (char *) args->item[i - 2];
grep_argv[grep_pass][i] = NULL;
}
/* Select the messages. */
result = process_msgdomain_list (result);
/* Sort the results. */
if (sort_by_filepos)
msgdomain_list_sort_by_filepos (result);
else if (sort_by_msgid)
msgdomain_list_sort_by_msgid (result);
/* Write the merged message list out. */
msgdomain_list_print (result, output_file, force_po, false);
exit (EXIT_SUCCESS);
}
static void
no_pass (opt)
int opt;
{
error (EXIT_SUCCESS, 0,
_("option '%c' cannot be used before 'K' or 'T' has been specified"),
opt);
usage (EXIT_FAILURE);
}
/* Display usage information and exit. */
static void
usage (status)
int status;
{
if (status != EXIT_SUCCESS)
fprintf (stderr, _("Try `%s --help' for more information.\n"),
program_name);
else
{
/* xgettext: no-wrap */
printf (_("\
Usage: %s [OPTION] [INPUTFILE]\n\
"), program_name);
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Extracts all messages of a translation catalog that match a given pattern\n\
or belong to some given source files.\n\
"));
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Mandatory arguments to long options are mandatory for short options too.\n\
"));
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Input file location:\n\
INPUTFILE input PO file\n\
-D, --directory=DIRECTORY add DIRECTORY to list for input files search\n\
If no input file is given or if it is -, standard input is read.\n\
"));
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Output file location:\n\
-o, --output-file=FILE write output to specified file\n\
The results are written to standard output if no output file is specified\n\
or if it is -.\n\
"));
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Message selection:\n\
[-N SOURCEFILE]... [-M DOMAINNAME]... [-K MSGID-PATTERN] [-T MSGSTR-PATTERN]\n\
A message is selected if it comes from one of the specified source files,\n\
or if it comes from one of the specified domains,\n\
or if -K is given and its key (msgid or msgid_plural) matches MSGID-PATTERN,\n\
or if -T is given and its translation (msgstr) matches MSGSTR-PATTERN.\n\
\n\
When more than one selection criterion is specified, the set of selected\n\
messages is the union of the selected messages of each criterion.\n\
\n\
MSGID-PATTERN or MSGSTR-PATTERN syntax:\n\
[-E | -F] [-e PATTERN | -f FILE]...\n\
PATTERNs are basic regular expressions by default, or extended regular\n\
expressions if -E is given, or fixed strings if -F is given.\n\
\n\
-N, --location=SOURCEFILE select messages extracted from SOURCEFILE\n\
-M, --domain=DOMAINNAME select messages belonging to domain DOMAINNAME\n\
-K, --msgid start of patterns for the msgid\n\
-T, --msgstr start of patterns for the msgstr\n\
-E, --extended-regexp PATTERN is an extended regular expression\n\
-F, --fixed-strings PATTERN is a set of newline-separated strings\n\
-e, --regexp=PATTERN use PATTERN as a regular expression\n\
-f, --file=FILE obtain PATTERN from FILE\n\
-i, --ignore-case ignore case distinctions\n\
"));
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Output details:\n\
--no-escape do not use C escapes in output (default)\n\
--escape use C escapes in output, no extended chars\n\
--force-po write PO file even if empty\n\
--indent indented output style\n\
--no-location suppress '#: filename:line' lines\n\
--add-location preserve '#: filename:line' lines (default)\n\
--strict strict Uniforum output style\n\
-w, --width=NUMBER set output page width\n\
--sort-output generate sorted output and remove duplicates\n\
--sort-by-file sort output by file location\n\
"));
printf ("\n");
/* xgettext: no-wrap */
printf (_("\
Informative output:\n\
-h, --help display this help and exit\n\
-V, --version output version information and exit\n\
"));
printf ("\n");
fputs (_("Report bugs to <bug-gnu-gettext@gnu.org>.\n"),
stdout);
}
exit (status);
}
#ifdef EINTR
/* EINTR handling for close().
These functions can return -1/EINTR even though we don't have any
signal handlers set up, namely when we get interrupted via SIGSTOP. */
static inline int
nonintr_close (fd)
int fd;
{
int retval;
do
retval = close (fd);
while (retval < 0 && errno == EINTR);
return retval;
}
#define close nonintr_close
#endif
/* Process a string STR of size LEN bytes through grep, and return true
if it matches. */
static bool
is_string_selected (grep_pass, str, len)
int grep_pass;
const char *str;
size_t len;
{
if (grep_args[grep_pass]->nitems > 0)
{
pid_t child;
int fd[1];
ssize_t nwritten;
int exitstatus;
/* Open a pipe to a grep subprocess. */
child = create_pipe_out ("grep", grep_path, grep_argv[grep_pass],
"/dev/null", fd);
nwritten = full_write (fd[0], str, len);
if (nwritten != (ssize_t) len)
error (EXIT_FAILURE, errno,
_("write to grep subprocess failed"));
close (fd[0]);
/* Remove zombie process from process list, and retrieve exit status. */
exitstatus = wait_subprocess (child, "grep");
return (exitstatus == 0);
}
else
return 0;
}
/* Return true if a message matches. */
static bool
is_message_selected (mp)
const message_ty *mp;
{
size_t i;
const char *msgstr;
size_t msgstr_len;
const char *p;
/* Always keep the header entry. */
if (mp->msgid[0] == '\0')
return true;
/* Test whether one of mp->filepos[] is selected. */
for (i = 0; i < mp->filepos_count; i++)
if (string_list_member (location_files, mp->filepos[i].file_name))
return true;
/* Test msgid and msgid_plural using the --msgid arguments. */
if (is_string_selected (0, mp->msgid, strlen (mp->msgid)))
return true;
if (mp->msgid_plural != NULL
&& is_string_selected (0, mp->msgid_plural, strlen (mp->msgid_plural)))
return true;
/* Test msgstr using the --msgstr arguments. */
msgstr = mp->msgstr;
msgstr_len = mp->msgstr_len;
/* Process each NUL delimited substring separately. */
for (p = msgstr; p < msgstr + msgstr_len; )
{
size_t length = strlen (p);
if (is_string_selected (1, p, length))
return true;
p += length + 1;
}
return false;
}
static void
process_message_list (domain, mlp)
const char *domain;
message_list_ty *mlp;
{
if (string_list_member (domain_names, domain))
/* Keep all the messages in the list. */
;
else
/* Keep only the selected messages. */
message_list_remove_if_not (mlp, is_message_selected);
}
static msgdomain_list_ty *
process_msgdomain_list (mdlp)
msgdomain_list_ty *mdlp;
{
size_t k;
for (k = 0; k < mdlp->nitems; k++)
process_message_list (mdlp->item[k]->domain, mdlp->item[k]->messages);
return mdlp;
}
|