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/*
* manconv_main.c: convert manual page from one encoding to another
*
* Copyright (C) 2007, 2008 Colin Watson.
*
* This file is part of man-db.
*
* man-db 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 of the License, or
* (at your option) any later version.
*
* man-db 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 man-db; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "argp.h"
#include "error.h"
#include "gl_array_list.h"
#include "gl_xlist.h"
#include "progname.h"
#include "xalloc.h"
#include "gettext.h"
#define _(String) gettext (String)
#define N_(String) gettext_noop (String)
#include "manconfig.h"
#include "appendstr.h"
#include "cleanup.h"
#include "debug.h"
#include "encodings.h"
#include "pipeline.h"
#include "glcontainers.h"
#include "sandbox.h"
#include "util.h"
#include "decompress.h"
#include "manconv.h"
int quiet = 0;
man_sandbox *sandbox;
static const char *from_codes;
static char *to_code;
static gl_list_t from_code;
static const char *filename;
static gl_list_t split_codes (const char *codestr)
{
char *codestrtok, *codestrtok_ptr;
char *tok;
gl_list_t codelist = new_string_list (GL_ARRAY_LIST, true);
if (!codestr)
return codelist;
codestrtok = xstrdup (codestr);
codestrtok_ptr = codestrtok;
for (tok = strsep (&codestrtok_ptr, ":"); tok;
tok = strsep (&codestrtok_ptr, ":")) {
if (!*tok)
continue; /* ignore empty fields */
gl_list_add_last (codelist, xstrdup (tok));
}
free (codestrtok);
return codelist;
}
const char *argp_program_version = "manconv " PACKAGE_VERSION;
const char *argp_program_bug_address = PACKAGE_BUGREPORT;
error_t argp_err_exit_status = FAIL;
static const char args_doc[] = N_("[-f CODE[:...]] -t CODE [FILENAME]");
static struct argp_option options[] = {
OPT ("from-code", 'f', N_("CODE[:...]"),
N_("possible encodings of original text")),
OPT ("to-code", 't', N_("CODE"), N_("encoding for output")),
OPT ("debug", 'd', 0, N_("emit debugging messages")),
OPT ("quiet", 'q', 0, N_("produce fewer warnings")),
OPT_HELP_COMPAT,
{ 0 }
};
static error_t parse_opt (int key, char *arg, struct argp_state *state)
{
switch (key) {
case 'f':
from_codes = arg;
return 0;
case 't':
to_code = xstrdup (arg);
if (!strstr (to_code, "//"))
to_code = appendstr (to_code, "//TRANSLIT",
(void *) 0);
return 0;
case 'd':
debug_level = true;
return 0;
case 'q':
quiet = 1;
return 0;
case 'h':
argp_state_help (state, state->out_stream,
ARGP_HELP_STD_HELP);
break;
case ARGP_KEY_ARG:
if (filename)
argp_usage (state);
filename = arg;
return 0;
case ARGP_KEY_SUCCESS:
if (!to_code)
argp_error (state,
_("must specify an output "
"encoding"));
from_code = split_codes (from_codes);
return 0;
}
return ARGP_ERR_UNKNOWN;
}
static struct argp argp = { options, parse_opt, args_doc };
int main (int argc, char *argv[])
{
decompress *decomp;
set_program_name (argv[0]);
init_debug ();
pipeline_install_post_fork (pop_all_cleanups);
sandbox = sandbox_init ();
init_locale ();
if (argp_parse (&argp, argc, argv, 0, 0, 0))
exit (FAIL);
assert (from_code);
if (filename) {
decomp = decompress_open (filename, 0);
if (!decomp)
error (FAIL, 0, _("can't open %s"), filename);
} else
decomp = decompress_fdopen (dup (STDIN_FILENO));
decompress_start (decomp);
if (!gl_list_size (from_code)) {
char *lang, *page_encoding;
/* Note that we don't need to explicitly check the page's
* preprocessor encoding here, as the manconv function will
* do that itself and override the requested input encoding
* with it if it finds one.
*/
lang = lang_dir (filename);
page_encoding = get_page_encoding (lang);
if (STREQ (page_encoding, "UTF-8")) {
/* Steal memory. */
gl_list_add_last (from_code, page_encoding);
debug ("guessed input encoding %s for %s\n",
page_encoding, filename);
} else {
gl_list_add_last (from_code, xstrdup ("UTF-8"));
/* Steal memory. */
gl_list_add_last (from_code, page_encoding);
debug ("guessed input encodings UTF-8:%s for %s\n",
page_encoding, filename);
}
free (lang);
}
if (manconv (decomp, from_code, to_code, NULL) != 0)
/* manconv already wrote an error message to stderr. Just
* exit non-zero.
*/
exit (FATAL);
free (to_code);
gl_list_free (from_code);
decompress_wait (decomp);
sandbox_free (sandbox);
return 0;
}
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