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Annotation of mandoc/tbl.c, Revision 1.24

1.24    ! kristaps    1: /*     $Id: tbl.c,v 1.23 2011/03/20 16:02:05 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:  */
                     18: #include <assert.h>
1.3       kristaps   19: #include <stdio.h>
1.1       kristaps   20: #include <stdlib.h>
                     21: #include <string.h>
                     22: #include <time.h>
                     23:
                     24: #include "mandoc.h"
                     25: #include "libmandoc.h"
                     26: #include "libroff.h"
                     27:
                     28: enum rofferr
1.17      kristaps   29: tbl_read(struct tbl_node *tbl, int ln, const char *p, int offs)
1.1       kristaps   30: {
                     31:        int              len;
                     32:        const char      *cp;
                     33:
                     34:        cp = &p[offs];
                     35:        len = (int)strlen(cp);
                     36:
1.5       kristaps   37:        /*
                     38:         * If we're in the options section and we don't have a
                     39:         * terminating semicolon, assume we've moved directly into the
                     40:         * layout section.  No need to report a warning: this is,
                     41:         * apparently, standard behaviour.
                     42:         */
                     43:
                     44:        if (TBL_PART_OPTS == tbl->part && len)
1.1       kristaps   45:                if (';' != cp[len - 1])
                     46:                        tbl->part = TBL_PART_LAYOUT;
1.5       kristaps   47:
                     48:        /* Now process each logical section of the table.  */
                     49:
                     50:        switch (tbl->part) {
                     51:        case (TBL_PART_OPTS):
                     52:                return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.6       kristaps   53:        case (TBL_PART_LAYOUT):
                     54:                return(tbl_layout(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.21      kristaps   55:        case (TBL_PART_CDATA):
                     56:                return(tbl_cdata(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
                     57:        default:
1.5       kristaps   58:                break;
1.8       kristaps   59:        }
                     60:
1.12      kristaps   61:        /*
                     62:         * This only returns zero if the line is empty, so we ignore it
                     63:         * and continue on.
1.9       kristaps   64:         */
1.12      kristaps   65:        return(tbl_data(tbl, ln, p) ? ROFF_TBL : ROFF_IGN);
1.1       kristaps   66: }
                     67:
1.17      kristaps   68: struct tbl_node *
1.23      kristaps   69: tbl_alloc(int pos, int line, struct mparse *parse)
1.1       kristaps   70: {
1.17      kristaps   71:        struct tbl_node *p;
1.1       kristaps   72:
1.17      kristaps   73:        p = mandoc_calloc(1, sizeof(struct tbl_node));
1.13      kristaps   74:        p->line = line;
                     75:        p->pos = pos;
1.23      kristaps   76:        p->parse = parse;
1.10      kristaps   77:        p->part = TBL_PART_OPTS;
1.17      kristaps   78:        p->opts.tab = '\t';
                     79:        p->opts.linesize = 12;
                     80:        p->opts.decimal = '.';
1.1       kristaps   81:        return(p);
                     82: }
                     83:
                     84: void
1.17      kristaps   85: tbl_free(struct tbl_node *p)
1.1       kristaps   86: {
1.10      kristaps   87:        struct tbl_row  *rp;
                     88:        struct tbl_cell *cp;
                     89:        struct tbl_span *sp;
                     90:        struct tbl_dat  *dp;
1.15      kristaps   91:        struct tbl_head *hp;
1.1       kristaps   92:
1.15      kristaps   93:        while (NULL != (rp = p->first_row)) {
1.10      kristaps   94:                p->first_row = rp->next;
                     95:                while (rp->first) {
                     96:                        cp = rp->first;
                     97:                        rp->first = cp->next;
                     98:                        free(cp);
                     99:                }
                    100:                free(rp);
                    101:        }
1.1       kristaps  102:
1.15      kristaps  103:        while (NULL != (sp = p->first_span)) {
1.10      kristaps  104:                p->first_span = sp->next;
                    105:                while (sp->first) {
                    106:                        dp = sp->first;
                    107:                        sp->first = dp->next;
                    108:                        if (dp->string)
                    109:                                free(dp->string);
                    110:                        free(dp);
                    111:                }
                    112:                free(sp);
1.15      kristaps  113:        }
                    114:
                    115:        while (NULL != (hp = p->first_head)) {
                    116:                p->first_head = hp->next;
                    117:                free(hp);
1.10      kristaps  118:        }
1.1       kristaps  119:
1.10      kristaps  120:        free(p);
1.7       kristaps  121: }
                    122:
                    123: void
1.17      kristaps  124: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.7       kristaps  125: {
1.21      kristaps  126:        if (TBL_PART_CDATA == tbl->part)
1.23      kristaps  127:                mandoc_msg(MANDOCERR_TBLBLOCK, tbl->parse,
                    128:                                tbl->line, tbl->pos, NULL);
1.7       kristaps  129:
                    130:        tbl->part = TBL_PART_LAYOUT;
1.14      kristaps  131:        tbl->line = line;
                    132:        tbl->pos = pos;
                    133:
                    134:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
1.23      kristaps  135:                mandoc_msg(MANDOCERR_TBLNODATA, tbl->parse,
                    136:                                tbl->line, tbl->pos, NULL);
1.1       kristaps  137: }
1.3       kristaps  138:
1.11      kristaps  139: const struct tbl_span *
1.22      schwarze  140: tbl_span(struct tbl_node *tbl)
1.11      kristaps  141: {
1.22      schwarze  142:        struct tbl_span  *span;
1.11      kristaps  143:
                    144:        assert(tbl);
1.22      schwarze  145:        span = tbl->current_span ? tbl->current_span->next
                    146:                                 : tbl->first_span;
                    147:        if (span)
                    148:                tbl->current_span = span;
                    149:        return(span);
1.13      kristaps  150: }
                    151:
                    152: void
1.17      kristaps  153: tbl_end(struct tbl_node *tbl)
1.13      kristaps  154: {
                    155:
                    156:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
1.23      kristaps  157:                mandoc_msg(MANDOCERR_TBLNODATA, tbl->parse,
                    158:                                tbl->line, tbl->pos, NULL);
1.18      kristaps  159:
                    160:        if (tbl->last_span)
                    161:                tbl->last_span->flags |= TBL_SPAN_LAST;
1.21      kristaps  162:
                    163:        if (TBL_PART_CDATA == tbl->part)
1.23      kristaps  164:                mandoc_msg(MANDOCERR_TBLBLOCK, tbl->parse,
                    165:                                tbl->line, tbl->pos, NULL);
1.16      kristaps  166: }
                    167:

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