/* $Id: main.c,v 1.5 2019/04/09 15:23:51 schwarze Exp $ */
/*
* Copyright (c) 2014 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <getopt.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "node.h"
#include "parse.h"
#include "format.h"
/*
* The steering function of the docbook2mdoc(1) program.
*/
int
main(int argc, char *argv[])
{
struct parse *parser;
struct ptree *tree;
const char *progname;
const char *fname;
int ch, fd, rc, warn;
if ((progname = strrchr(argv[0], '/')) == NULL)
progname = argv[0];
else
progname++;
warn = 0;
while ((ch = getopt(argc, argv, "W")) != -1) {
switch (ch) {
case 'W':
warn = 1;
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
/*
* Argument processing:
* Open file or use standard input.
*/
if (argc > 1) {
fprintf(stderr, "%s: Too many arguments\n", argv[1]);
goto usage;
} else if (argc == 1) {
fname = argv[0];
fd = -1;
} else {
fname = "<stdin>";
fd = STDIN_FILENO;
}
/* Parse. */
if ((parser = parse_alloc(warn)) == NULL) {
perror(NULL);
return 6;
}
tree = parse_file(parser, fd, fname);
rc = tree->flags & TREE_ERROR ? 3 : tree->flags & TREE_WARN ? 2 : 0;
/* Format. */
if (tree->root != NULL) {
if (rc > 2)
fputc('\n', stderr);
ptree_print(tree);
if (rc > 2)
fputs("\nThe output may be incomplete, see the "
"parse error reported above.\n\n", stderr);
}
parse_free(parser);
return rc;
usage:
fprintf(stderr, "usage: %s [-W] [input_filename]\n", progname);
return 5;
}