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Annotation of docbook2mdoc/main.c, Revision 1.10

1.10    ! schwarze    1: /* $Id: main.c,v 1.9 2019/05/01 07:14:17 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>
1.9       schwarze   19: #include <libgen.h>
1.1       schwarze   20: #include <stdio.h>
                     21: #include <string.h>
                     22: #include <unistd.h>
                     23:
                     24: #include "node.h"
                     25: #include "parse.h"
1.8       schwarze   26: #include "reorg.h"
1.1       schwarze   27: #include "format.h"
                     28:
                     29: /*
                     30:  * The steering function of the docbook2mdoc(1) program.
                     31:  */
                     32:
1.6       schwarze   33: enum   outt {
                     34:        OUTT_MDOC = 0,
                     35:        OUTT_TREE,
                     36:        OUTT_LINT
                     37: };
                     38:
1.1       schwarze   39: int
                     40: main(int argc, char *argv[])
                     41: {
                     42:        struct parse    *parser;
                     43:        struct ptree    *tree;
                     44:        const char      *progname;
1.10    ! schwarze   45:        const char      *bname, *fname, *sec;
1.1       schwarze   46:        int              ch, fd, rc, warn;
1.6       schwarze   47:        enum outt        outtype;
1.1       schwarze   48:
                     49:        if ((progname = strrchr(argv[0], '/')) == NULL)
                     50:                progname = argv[0];
                     51:        else
                     52:                progname++;
                     53:
1.10    ! schwarze   54:        sec = NULL;
1.1       schwarze   55:        warn = 0;
1.6       schwarze   56:        outtype = OUTT_MDOC;
1.10    ! schwarze   57:        while ((ch = getopt(argc, argv, "s:T:W")) != -1) {
1.1       schwarze   58:                switch (ch) {
1.10    ! schwarze   59:                case 's':
        !            60:                        sec = optarg;
        !            61:                        break;
1.6       schwarze   62:                case 'T':
                     63:                        if (strcmp(optarg, "mdoc") == 0)
                     64:                                outtype = OUTT_MDOC;
                     65:                        else if (strcmp(optarg, "tree") == 0)
                     66:                                outtype = OUTT_TREE;
                     67:                        else if (strcmp(optarg, "lint") == 0)
                     68:                                outtype = OUTT_LINT;
                     69:                        else {
                     70:                                fprintf(stderr, "%s: Bad argument\n",
                     71:                                    optarg);
                     72:                                goto usage;
                     73:                        }
                     74:                        break;
1.1       schwarze   75:                case 'W':
                     76:                        warn = 1;
                     77:                        break;
                     78:                default:
                     79:                        goto usage;
                     80:                }
                     81:        }
                     82:        argc -= optind;
                     83:        argv += optind;
                     84:
                     85:        /*
                     86:         * Argument processing:
                     87:         * Open file or use standard input.
                     88:         */
                     89:
                     90:        if (argc > 1) {
                     91:                fprintf(stderr, "%s: Too many arguments\n", argv[1]);
                     92:                goto usage;
1.4       schwarze   93:        } else if (argc == 1) {
                     94:                fname = argv[0];
                     95:                fd = -1;
                     96:        } else {
                     97:                fname = "<stdin>";
                     98:                fd = STDIN_FILENO;
                     99:        }
1.1       schwarze  100:
1.4       schwarze  101:        /* Parse. */
1.1       schwarze  102:
1.7       schwarze  103:        parser = parse_alloc(warn);
1.4       schwarze  104:        tree = parse_file(parser, fd, fname);
1.10    ! schwarze  105:        ptree_reorg(tree, sec);
1.5       schwarze  106:        rc = tree->flags & TREE_ERROR ? 3 : tree->flags & TREE_WARN ? 2 : 0;
1.1       schwarze  107:
1.4       schwarze  108:        /* Format. */
1.1       schwarze  109:
1.6       schwarze  110:        if (outtype != OUTT_LINT && tree->root != NULL) {
1.5       schwarze  111:                if (rc > 2)
1.4       schwarze  112:                        fputc('\n', stderr);
1.9       schwarze  113:                if (outtype == OUTT_MDOC) {
                    114:                        if (fd == -1 && (bname = basename(fname)) != NULL)
                    115:                                printf(".\\\" automatically generated "
                    116:                                    "with %s %s\n", progname, bname);
1.6       schwarze  117:                        ptree_print_mdoc(tree);
1.9       schwarze  118:                } else
1.6       schwarze  119:                        ptree_print_tree(tree);
1.5       schwarze  120:                if (rc > 2)
1.4       schwarze  121:                        fputs("\nThe output may be incomplete, see the "
                    122:                            "parse error reported above.\n\n", stderr);
                    123:        }
                    124:        parse_free(parser);
1.1       schwarze  125:        return rc;
                    126:
                    127: usage:
1.10    ! schwarze  128:        fprintf(stderr, "usage: %s [-W] [-s section] "
        !           129:            "[-T mdoc | tree | lint] [input_filename]\n", progname);
1.5       schwarze  130:        return 5;
1.1       schwarze  131: }

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