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Annotation of mandoc/tbl.c, Revision 1.29

1.29    ! schwarze    1: /*     $Id: tbl.c,v 1.28 2014/03/23 11:25:26 schwarze Exp $ */
1.1       kristaps    2: /*
1.22      schwarze    3:  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
                      4:  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    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:  */
1.25      kristaps   18: #ifdef HAVE_CONFIG_H
                     19: #include "config.h"
                     20: #endif
                     21:
1.1       kristaps   22: #include <assert.h>
1.3       kristaps   23: #include <stdio.h>
1.1       kristaps   24: #include <stdlib.h>
                     25: #include <string.h>
                     26: #include <time.h>
                     27:
                     28: #include "mandoc.h"
1.28      schwarze   29: #include "mandoc_aux.h"
1.1       kristaps   30: #include "libmandoc.h"
                     31: #include "libroff.h"
                     32:
1.29    ! schwarze   33:
1.1       kristaps   34: enum rofferr
1.17      kristaps   35: tbl_read(struct tbl_node *tbl, int ln, const char *p, int offs)
1.1       kristaps   36: {
                     37:        int              len;
                     38:        const char      *cp;
                     39:
                     40:        cp = &p[offs];
                     41:        len = (int)strlen(cp);
                     42:
1.5       kristaps   43:        /*
                     44:         * If we're in the options section and we don't have a
                     45:         * terminating semicolon, assume we've moved directly into the
                     46:         * layout section.  No need to report a warning: this is,
                     47:         * apparently, standard behaviour.
                     48:         */
                     49:
                     50:        if (TBL_PART_OPTS == tbl->part && len)
1.1       kristaps   51:                if (';' != cp[len - 1])
                     52:                        tbl->part = TBL_PART_LAYOUT;
1.5       kristaps   53:
                     54:        /* Now process each logical section of the table.  */
                     55:
                     56:        switch (tbl->part) {
1.29    ! schwarze   57:        case TBL_PART_OPTS:
1.5       kristaps   58:                return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.29    ! schwarze   59:        case TBL_PART_LAYOUT:
1.6       kristaps   60:                return(tbl_layout(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.29    ! schwarze   61:        case TBL_PART_CDATA:
1.21      kristaps   62:                return(tbl_cdata(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
                     63:        default:
1.5       kristaps   64:                break;
1.8       kristaps   65:        }
                     66:
1.12      kristaps   67:        /*
                     68:         * This only returns zero if the line is empty, so we ignore it
                     69:         * and continue on.
1.9       kristaps   70:         */
1.12      kristaps   71:        return(tbl_data(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
1.1       kristaps   72: }
                     73:
1.17      kristaps   74: struct tbl_node *
1.23      kristaps   75: tbl_alloc(int pos, int line, struct mparse *parse)
1.1       kristaps   76: {
1.27      schwarze   77:        struct tbl_node *tbl;
1.1       kristaps   78:
1.27      schwarze   79:        tbl = mandoc_calloc(1, sizeof(struct tbl_node));
                     80:        tbl->line = line;
                     81:        tbl->pos = pos;
                     82:        tbl->parse = parse;
                     83:        tbl->part = TBL_PART_OPTS;
                     84:        tbl->opts.tab = '\t';
                     85:        tbl->opts.linesize = 12;
                     86:        tbl->opts.decimal = '.';
                     87:        return(tbl);
1.1       kristaps   88: }
                     89:
                     90: void
1.27      schwarze   91: tbl_free(struct tbl_node *tbl)
1.1       kristaps   92: {
1.10      kristaps   93:        struct tbl_row  *rp;
                     94:        struct tbl_cell *cp;
                     95:        struct tbl_span *sp;
                     96:        struct tbl_dat  *dp;
1.15      kristaps   97:        struct tbl_head *hp;
1.1       kristaps   98:
1.27      schwarze   99:        while (NULL != (rp = tbl->first_row)) {
                    100:                tbl->first_row = rp->next;
1.10      kristaps  101:                while (rp->first) {
                    102:                        cp = rp->first;
                    103:                        rp->first = cp->next;
                    104:                        free(cp);
                    105:                }
                    106:                free(rp);
                    107:        }
1.1       kristaps  108:
1.27      schwarze  109:        while (NULL != (sp = tbl->first_span)) {
                    110:                tbl->first_span = sp->next;
1.10      kristaps  111:                while (sp->first) {
                    112:                        dp = sp->first;
                    113:                        sp->first = dp->next;
                    114:                        if (dp->string)
                    115:                                free(dp->string);
                    116:                        free(dp);
                    117:                }
                    118:                free(sp);
1.15      kristaps  119:        }
                    120:
1.27      schwarze  121:        while (NULL != (hp = tbl->first_head)) {
                    122:                tbl->first_head = hp->next;
1.15      kristaps  123:                free(hp);
1.10      kristaps  124:        }
1.1       kristaps  125:
1.27      schwarze  126:        free(tbl);
1.7       kristaps  127: }
                    128:
                    129: void
1.17      kristaps  130: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.7       kristaps  131: {
1.21      kristaps  132:        if (TBL_PART_CDATA == tbl->part)
1.29    ! schwarze  133:                mandoc_msg(MANDOCERR_TBLBLOCK, tbl->parse,
        !           134:                    tbl->line, tbl->pos, NULL);
1.7       kristaps  135:
                    136:        tbl->part = TBL_PART_LAYOUT;
1.14      kristaps  137:        tbl->line = line;
                    138:        tbl->pos = pos;
                    139:
                    140:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
1.23      kristaps  141:                mandoc_msg(MANDOCERR_TBLNODATA, tbl->parse,
1.29    ! schwarze  142:                    tbl->line, tbl->pos, NULL);
1.1       kristaps  143: }
1.3       kristaps  144:
1.11      kristaps  145: const struct tbl_span *
1.22      schwarze  146: tbl_span(struct tbl_node *tbl)
1.11      kristaps  147: {
1.22      schwarze  148:        struct tbl_span  *span;
1.11      kristaps  149:
                    150:        assert(tbl);
1.22      schwarze  151:        span = tbl->current_span ? tbl->current_span->next
                    152:                                 : tbl->first_span;
                    153:        if (span)
                    154:                tbl->current_span = span;
                    155:        return(span);
1.13      kristaps  156: }
                    157:
                    158: void
1.26      kristaps  159: tbl_end(struct tbl_node **tblp)
1.13      kristaps  160: {
1.26      kristaps  161:        struct tbl_node *tbl;
                    162:
                    163:        tbl = *tblp;
                    164:        *tblp = NULL;
1.13      kristaps  165:
                    166:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
1.29    ! schwarze  167:                mandoc_msg(MANDOCERR_TBLNODATA, tbl->parse,
        !           168:                    tbl->line, tbl->pos, NULL);
1.18      kristaps  169:
                    170:        if (tbl->last_span)
                    171:                tbl->last_span->flags |= TBL_SPAN_LAST;
1.21      kristaps  172:
                    173:        if (TBL_PART_CDATA == tbl->part)
1.29    ! schwarze  174:                mandoc_msg(MANDOCERR_TBLBLOCK, tbl->parse,
        !           175:                    tbl->line, tbl->pos, NULL);
1.16      kristaps  176: }

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