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Annotation of mandoc/tbl.c, Revision 1.26

1.26    ! kristaps    1: /*     $Id: tbl.c,v 1.25 2011/04/04 23:04:38 kristaps 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"
                     29: #include "libmandoc.h"
                     30: #include "libroff.h"
                     31:
                     32: enum rofferr
1.17      kristaps   33: tbl_read(struct tbl_node *tbl, int ln, const char *p, int offs)
1.1       kristaps   34: {
                     35:        int              len;
                     36:        const char      *cp;
                     37:
                     38:        cp = &p[offs];
                     39:        len = (int)strlen(cp);
                     40:
1.5       kristaps   41:        /*
                     42:         * If we're in the options section and we don't have a
                     43:         * terminating semicolon, assume we've moved directly into the
                     44:         * layout section.  No need to report a warning: this is,
                     45:         * apparently, standard behaviour.
                     46:         */
                     47:
                     48:        if (TBL_PART_OPTS == tbl->part && len)
1.1       kristaps   49:                if (';' != cp[len - 1])
                     50:                        tbl->part = TBL_PART_LAYOUT;
1.5       kristaps   51:
                     52:        /* Now process each logical section of the table.  */
                     53:
                     54:        switch (tbl->part) {
                     55:        case (TBL_PART_OPTS):
                     56:                return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.6       kristaps   57:        case (TBL_PART_LAYOUT):
                     58:                return(tbl_layout(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.21      kristaps   59:        case (TBL_PART_CDATA):
                     60:                return(tbl_cdata(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
                     61:        default:
1.5       kristaps   62:                break;
1.8       kristaps   63:        }
                     64:
1.12      kristaps   65:        /*
                     66:         * This only returns zero if the line is empty, so we ignore it
                     67:         * and continue on.
1.9       kristaps   68:         */
1.12      kristaps   69:        return(tbl_data(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
1.1       kristaps   70: }
                     71:
1.17      kristaps   72: struct tbl_node *
1.23      kristaps   73: tbl_alloc(int pos, int line, struct mparse *parse)
1.1       kristaps   74: {
1.17      kristaps   75:        struct tbl_node *p;
1.1       kristaps   76:
1.17      kristaps   77:        p = mandoc_calloc(1, sizeof(struct tbl_node));
1.13      kristaps   78:        p->line = line;
                     79:        p->pos = pos;
1.23      kristaps   80:        p->parse = parse;
1.10      kristaps   81:        p->part = TBL_PART_OPTS;
1.17      kristaps   82:        p->opts.tab = '\t';
                     83:        p->opts.linesize = 12;
                     84:        p->opts.decimal = '.';
1.1       kristaps   85:        return(p);
                     86: }
                     87:
                     88: void
1.17      kristaps   89: tbl_free(struct tbl_node *p)
1.1       kristaps   90: {
1.10      kristaps   91:        struct tbl_row  *rp;
                     92:        struct tbl_cell *cp;
                     93:        struct tbl_span *sp;
                     94:        struct tbl_dat  *dp;
1.15      kristaps   95:        struct tbl_head *hp;
1.1       kristaps   96:
1.15      kristaps   97:        while (NULL != (rp = p->first_row)) {
1.10      kristaps   98:                p->first_row = rp->next;
                     99:                while (rp->first) {
                    100:                        cp = rp->first;
                    101:                        rp->first = cp->next;
                    102:                        free(cp);
                    103:                }
                    104:                free(rp);
                    105:        }
1.1       kristaps  106:
1.15      kristaps  107:        while (NULL != (sp = p->first_span)) {
1.10      kristaps  108:                p->first_span = sp->next;
                    109:                while (sp->first) {
                    110:                        dp = sp->first;
                    111:                        sp->first = dp->next;
                    112:                        if (dp->string)
                    113:                                free(dp->string);
                    114:                        free(dp);
                    115:                }
                    116:                free(sp);
1.15      kristaps  117:        }
                    118:
                    119:        while (NULL != (hp = p->first_head)) {
                    120:                p->first_head = hp->next;
                    121:                free(hp);
1.10      kristaps  122:        }
1.1       kristaps  123:
1.10      kristaps  124:        free(p);
1.7       kristaps  125: }
                    126:
                    127: void
1.17      kristaps  128: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.7       kristaps  129: {
1.21      kristaps  130:        if (TBL_PART_CDATA == tbl->part)
1.23      kristaps  131:                mandoc_msg(MANDOCERR_TBLBLOCK, tbl->parse,
                    132:                                tbl->line, tbl->pos, NULL);
1.7       kristaps  133:
                    134:        tbl->part = TBL_PART_LAYOUT;
1.14      kristaps  135:        tbl->line = line;
                    136:        tbl->pos = pos;
                    137:
                    138:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
1.23      kristaps  139:                mandoc_msg(MANDOCERR_TBLNODATA, tbl->parse,
                    140:                                tbl->line, tbl->pos, NULL);
1.1       kristaps  141: }
1.3       kristaps  142:
1.11      kristaps  143: const struct tbl_span *
1.22      schwarze  144: tbl_span(struct tbl_node *tbl)
1.11      kristaps  145: {
1.22      schwarze  146:        struct tbl_span  *span;
1.11      kristaps  147:
                    148:        assert(tbl);
1.22      schwarze  149:        span = tbl->current_span ? tbl->current_span->next
                    150:                                 : tbl->first_span;
                    151:        if (span)
                    152:                tbl->current_span = span;
                    153:        return(span);
1.13      kristaps  154: }
                    155:
                    156: void
1.26    ! kristaps  157: tbl_end(struct tbl_node **tblp)
1.13      kristaps  158: {
1.26    ! kristaps  159:        struct tbl_node *tbl;
        !           160:
        !           161:        tbl = *tblp;
        !           162:        *tblp = NULL;
1.13      kristaps  163:
                    164:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
1.23      kristaps  165:                mandoc_msg(MANDOCERR_TBLNODATA, tbl->parse,
                    166:                                tbl->line, tbl->pos, NULL);
1.18      kristaps  167:
                    168:        if (tbl->last_span)
                    169:                tbl->last_span->flags |= TBL_SPAN_LAST;
1.21      kristaps  170:
                    171:        if (TBL_PART_CDATA == tbl->part)
1.23      kristaps  172:                mandoc_msg(MANDOCERR_TBLBLOCK, tbl->parse,
                    173:                                tbl->line, tbl->pos, NULL);
1.16      kristaps  174: }
                    175:

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