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Annotation of docbook2mdoc/main.c, Revision 1.5

1.5     ! schwarze    1: /* $Id: main.c,v 1.4 2019/04/08 22:47:34 schwarze Exp $ */
1.1       schwarze    2: /*
                      3:  * Copyright (c) 2014 Kristaps Dzonsons <kristaps@bsd.lv>
                      4:  * Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18: #include <getopt.h>
                     19: #include <stdio.h>
                     20: #include <string.h>
                     21: #include <unistd.h>
                     22:
                     23: #include "node.h"
                     24: #include "parse.h"
                     25: #include "format.h"
                     26:
                     27: /*
                     28:  * The steering function of the docbook2mdoc(1) program.
                     29:  */
                     30:
                     31: int
                     32: main(int argc, char *argv[])
                     33: {
                     34:        struct parse    *parser;
                     35:        struct ptree    *tree;
                     36:        const char      *progname;
                     37:        const char      *fname;
                     38:        int              ch, fd, rc, warn;
                     39:
                     40:        if ((progname = strrchr(argv[0], '/')) == NULL)
                     41:                progname = argv[0];
                     42:        else
                     43:                progname++;
                     44:
                     45:        warn = 0;
                     46:        while ((ch = getopt(argc, argv, "W")) != -1) {
                     47:                switch (ch) {
                     48:                case 'W':
                     49:                        warn = 1;
                     50:                        break;
                     51:                default:
                     52:                        goto usage;
                     53:                }
                     54:        }
                     55:        argc -= optind;
                     56:        argv += optind;
                     57:
                     58:        /*
                     59:         * Argument processing:
                     60:         * Open file or use standard input.
                     61:         */
                     62:
                     63:        if (argc > 1) {
                     64:                fprintf(stderr, "%s: Too many arguments\n", argv[1]);
                     65:                goto usage;
1.4       schwarze   66:        } else if (argc == 1) {
                     67:                fname = argv[0];
                     68:                fd = -1;
                     69:        } else {
                     70:                fname = "<stdin>";
                     71:                fd = STDIN_FILENO;
                     72:        }
1.1       schwarze   73:
1.4       schwarze   74:        /* Parse. */
1.1       schwarze   75:
1.4       schwarze   76:        if ((parser = parse_alloc(warn)) == NULL) {
                     77:                perror(NULL);
1.5     ! schwarze   78:                return 6;
1.1       schwarze   79:        }
1.4       schwarze   80:        tree = parse_file(parser, fd, fname);
1.5     ! schwarze   81:        rc = tree->flags & TREE_ERROR ? 3 : tree->flags & TREE_WARN ? 2 : 0;
1.1       schwarze   82:
1.4       schwarze   83:        /* Format. */
1.1       schwarze   84:
1.4       schwarze   85:        if (tree->root != NULL) {
1.5     ! schwarze   86:                if (rc > 2)
1.4       schwarze   87:                        fputc('\n', stderr);
                     88:                ptree_print(tree);
1.5     ! schwarze   89:                if (rc > 2)
1.4       schwarze   90:                        fputs("\nThe output may be incomplete, see the "
                     91:                            "parse error reported above.\n\n", stderr);
                     92:        }
                     93:        parse_free(parser);
1.1       schwarze   94:        return rc;
                     95:
                     96: usage:
                     97:        fprintf(stderr, "usage: %s [-W] [input_filename]\n", progname);
1.5     ! schwarze   98:        return 5;
1.1       schwarze   99: }

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