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Annotation of src/usr.bin/mandoc/tbl.c, Revision 1.24

1.24    ! schwarze    1: /*     $OpenBSD: tbl.c,v 1.23 2017/07/08 17:52:42 schwarze Exp $ */
1.1       schwarze    2: /*
1.4       schwarze    3:  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.14      schwarze    4:  * Copyright (c) 2011, 2015 Ingo Schwarze <schwarze@openbsd.org>
1.1       schwarze    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 AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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:  */
1.11      schwarze   18: #include <sys/types.h>
                     19:
1.1       schwarze   20: #include <assert.h>
                     21: #include <stdio.h>
                     22: #include <stdlib.h>
                     23: #include <string.h>
1.4       schwarze   24: #include <time.h>
1.1       schwarze   25:
1.24    ! schwarze   26: #include "mandoc_aux.h"
1.4       schwarze   27: #include "mandoc.h"
1.24    ! schwarze   28: #include "tbl.h"
1.4       schwarze   29: #include "libmandoc.h"
                     30: #include "libroff.h"
1.1       schwarze   31:
1.10      schwarze   32:
1.23      schwarze   33: void
1.16      schwarze   34: tbl_read(struct tbl_node *tbl, int ln, const char *p, int pos)
1.1       schwarze   35: {
1.4       schwarze   36:        const char      *cp;
1.14      schwarze   37:        int              active;
1.1       schwarze   38:
1.4       schwarze   39:        /*
1.14      schwarze   40:         * In the options section, proceed to the layout section
                     41:         * after a semicolon, or right away if there is no semicolon.
                     42:         * Ignore semicolons in arguments.
1.4       schwarze   43:         */
1.1       schwarze   44:
1.14      schwarze   45:        if (tbl->part == TBL_PART_OPTS) {
                     46:                tbl->part = TBL_PART_LAYOUT;
                     47:                active = 1;
1.16      schwarze   48:                for (cp = p + pos; *cp != '\0'; cp++) {
1.14      schwarze   49:                        switch (*cp) {
                     50:                        case '(':
                     51:                                active = 0;
                     52:                                continue;
                     53:                        case ')':
                     54:                                active = 1;
                     55:                                continue;
                     56:                        case ';':
                     57:                                if (active)
                     58:                                        break;
                     59:                                continue;
                     60:                        default:
                     61:                                continue;
                     62:                        }
                     63:                        break;
                     64:                }
                     65:                if (*cp == ';') {
1.16      schwarze   66:                        tbl_option(tbl, ln, p, &pos);
                     67:                        if (p[pos] == '\0')
1.23      schwarze   68:                                return;
1.14      schwarze   69:                }
                     70:        }
1.1       schwarze   71:
1.14      schwarze   72:        /* Process the other section types.  */
1.1       schwarze   73:
                     74:        switch (tbl->part) {
1.10      schwarze   75:        case TBL_PART_LAYOUT:
1.16      schwarze   76:                tbl_layout(tbl, ln, p, pos);
1.23      schwarze   77:                break;
1.10      schwarze   78:        case TBL_PART_CDATA:
1.23      schwarze   79:                tbl_cdata(tbl, ln, p, pos);
                     80:                break;
1.1       schwarze   81:        default:
1.23      schwarze   82:                tbl_data(tbl, ln, p, pos);
1.1       schwarze   83:                break;
                     84:        }
                     85: }
                     86:
1.4       schwarze   87: struct tbl_node *
1.6       schwarze   88: tbl_alloc(int pos, int line, struct mparse *parse)
1.1       schwarze   89: {
1.8       schwarze   90:        struct tbl_node *tbl;
1.1       schwarze   91:
1.18      schwarze   92:        tbl = mandoc_calloc(1, sizeof(*tbl));
1.8       schwarze   93:        tbl->line = line;
                     94:        tbl->pos = pos;
                     95:        tbl->parse = parse;
                     96:        tbl->part = TBL_PART_OPTS;
                     97:        tbl->opts.tab = '\t';
                     98:        tbl->opts.decimal = '.';
1.21      schwarze   99:        return tbl;
1.1       schwarze  100: }
                    101:
                    102: void
1.8       schwarze  103: tbl_free(struct tbl_node *tbl)
1.1       schwarze  104: {
1.4       schwarze  105:        struct tbl_row  *rp;
                    106:        struct tbl_cell *cp;
                    107:        struct tbl_span *sp;
                    108:        struct tbl_dat  *dp;
                    109:
1.18      schwarze  110:        while ((rp = tbl->first_row) != NULL) {
1.8       schwarze  111:                tbl->first_row = rp->next;
1.18      schwarze  112:                while (rp->first != NULL) {
1.4       schwarze  113:                        cp = rp->first;
                    114:                        rp->first = cp->next;
1.22      schwarze  115:                        free(cp->wstr);
1.4       schwarze  116:                        free(cp);
                    117:                }
                    118:                free(rp);
1.1       schwarze  119:        }
                    120:
1.18      schwarze  121:        while ((sp = tbl->first_span) != NULL) {
1.8       schwarze  122:                tbl->first_span = sp->next;
1.18      schwarze  123:                while (sp->first != NULL) {
1.4       schwarze  124:                        dp = sp->first;
                    125:                        sp->first = dp->next;
1.18      schwarze  126:                        free(dp->string);
1.4       schwarze  127:                        free(dp);
                    128:                }
                    129:                free(sp);
1.1       schwarze  130:        }
                    131:
1.8       schwarze  132:        free(tbl);
1.1       schwarze  133: }
                    134:
1.4       schwarze  135: void
                    136: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.1       schwarze  137: {
1.17      schwarze  138:        if (tbl->part == TBL_PART_CDATA)
                    139:                mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse,
                    140:                    line, pos, "T&");
1.1       schwarze  141:
1.4       schwarze  142:        tbl->part = TBL_PART_LAYOUT;
                    143:        tbl->line = line;
                    144:        tbl->pos = pos;
1.1       schwarze  145: }
                    146:
1.4       schwarze  147: const struct tbl_span *
1.5       schwarze  148: tbl_span(struct tbl_node *tbl)
1.1       schwarze  149: {
1.5       schwarze  150:        struct tbl_span  *span;
1.1       schwarze  151:
1.4       schwarze  152:        assert(tbl);
1.5       schwarze  153:        span = tbl->current_span ? tbl->current_span->next
                    154:                                 : tbl->first_span;
                    155:        if (span)
                    156:                tbl->current_span = span;
1.21      schwarze  157:        return span;
1.1       schwarze  158: }
                    159:
1.17      schwarze  160: int
1.23      schwarze  161: tbl_end(struct tbl_node *tbl)
1.1       schwarze  162: {
1.15      schwarze  163:        struct tbl_span *sp;
1.1       schwarze  164:
1.17      schwarze  165:        if (tbl->part == TBL_PART_CDATA)
                    166:                mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse,
                    167:                    tbl->line, tbl->pos, "TE");
                    168:
1.15      schwarze  169:        sp = tbl->first_span;
                    170:        while (sp != NULL && sp->first == NULL)
                    171:                sp = sp->next;
1.17      schwarze  172:        if (sp == NULL) {
                    173:                mandoc_msg(MANDOCERR_TBLDATA_NONE, tbl->parse,
1.10      schwarze  174:                    tbl->line, tbl->pos, NULL);
1.21      schwarze  175:                return 0;
1.17      schwarze  176:        }
1.21      schwarze  177:        return 1;
1.1       schwarze  178: }