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Annotation of mandoc/tbl.c, Revision 1.39

1.39    ! schwarze    1: /*     $Id: tbl.c,v 1.38 2015/01/30 04:11:50 schwarze Exp $ */
1.1       kristaps    2: /*
1.22      schwarze    3:  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.33      schwarze    4:  * Copyright (c) 2011, 2015 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: #include "config.h"
1.30      schwarze   19:
                     20: #include <sys/types.h>
1.25      kristaps   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
1.35      schwarze   35: tbl_read(struct tbl_node *tbl, int ln, const char *p, int pos)
1.1       kristaps   36: {
                     37:        const char      *cp;
1.33      schwarze   38:        int              active;
1.1       kristaps   39:
1.5       kristaps   40:        /*
1.33      schwarze   41:         * In the options section, proceed to the layout section
                     42:         * after a semicolon, or right away if there is no semicolon.
                     43:         * Ignore semicolons in arguments.
1.5       kristaps   44:         */
                     45:
1.33      schwarze   46:        if (tbl->part == TBL_PART_OPTS) {
                     47:                tbl->part = TBL_PART_LAYOUT;
                     48:                active = 1;
1.35      schwarze   49:                for (cp = p + pos; *cp != '\0'; cp++) {
1.33      schwarze   50:                        switch (*cp) {
                     51:                        case '(':
                     52:                                active = 0;
                     53:                                continue;
                     54:                        case ')':
                     55:                                active = 1;
                     56:                                continue;
                     57:                        case ';':
                     58:                                if (active)
                     59:                                        break;
                     60:                                continue;
                     61:                        default:
                     62:                                continue;
                     63:                        }
                     64:                        break;
                     65:                }
                     66:                if (*cp == ';') {
1.35      schwarze   67:                        tbl_option(tbl, ln, p, &pos);
                     68:                        if (p[pos] == '\0')
1.33      schwarze   69:                                return(ROFF_IGN);
                     70:                }
                     71:        }
1.5       kristaps   72:
1.33      schwarze   73:        /* Process the other section types.  */
1.5       kristaps   74:
                     75:        switch (tbl->part) {
1.29      schwarze   76:        case TBL_PART_LAYOUT:
1.35      schwarze   77:                tbl_layout(tbl, ln, p, pos);
1.31      schwarze   78:                return(ROFF_IGN);
1.29      schwarze   79:        case TBL_PART_CDATA:
1.35      schwarze   80:                return(tbl_cdata(tbl, ln, p, pos) ? ROFF_TBL : ROFF_IGN);
1.21      kristaps   81:        default:
1.5       kristaps   82:                break;
1.8       kristaps   83:        }
                     84:
1.35      schwarze   85:        tbl_data(tbl, ln, p, pos);
1.32      schwarze   86:        return(ROFF_TBL);
1.1       kristaps   87: }
                     88:
1.17      kristaps   89: struct tbl_node *
1.23      kristaps   90: tbl_alloc(int pos, int line, struct mparse *parse)
1.1       kristaps   91: {
1.27      schwarze   92:        struct tbl_node *tbl;
1.1       kristaps   93:
1.37      schwarze   94:        tbl = mandoc_calloc(1, sizeof(*tbl));
1.27      schwarze   95:        tbl->line = line;
                     96:        tbl->pos = pos;
                     97:        tbl->parse = parse;
                     98:        tbl->part = TBL_PART_OPTS;
                     99:        tbl->opts.tab = '\t';
                    100:        tbl->opts.decimal = '.';
                    101:        return(tbl);
1.1       kristaps  102: }
                    103:
                    104: void
1.27      schwarze  105: tbl_free(struct tbl_node *tbl)
1.1       kristaps  106: {
1.10      kristaps  107:        struct tbl_row  *rp;
                    108:        struct tbl_cell *cp;
                    109:        struct tbl_span *sp;
                    110:        struct tbl_dat  *dp;
1.1       kristaps  111:
1.37      schwarze  112:        while ((rp = tbl->first_row) != NULL) {
1.27      schwarze  113:                tbl->first_row = rp->next;
1.37      schwarze  114:                while (rp->first != NULL) {
1.10      kristaps  115:                        cp = rp->first;
                    116:                        rp->first = cp->next;
                    117:                        free(cp);
                    118:                }
                    119:                free(rp);
                    120:        }
1.1       kristaps  121:
1.37      schwarze  122:        while ((sp = tbl->first_span) != NULL) {
1.27      schwarze  123:                tbl->first_span = sp->next;
1.37      schwarze  124:                while (sp->first != NULL) {
1.10      kristaps  125:                        dp = sp->first;
                    126:                        sp->first = dp->next;
1.37      schwarze  127:                        free(dp->string);
1.10      kristaps  128:                        free(dp);
                    129:                }
                    130:                free(sp);
                    131:        }
1.1       kristaps  132:
1.27      schwarze  133:        free(tbl);
1.7       kristaps  134: }
                    135:
                    136: void
1.17      kristaps  137: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.7       kristaps  138: {
1.36      schwarze  139:        if (tbl->part == TBL_PART_CDATA)
                    140:                mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse,
                    141:                    line, pos, "T&");
1.7       kristaps  142:
                    143:        tbl->part = TBL_PART_LAYOUT;
1.14      kristaps  144:        tbl->line = line;
                    145:        tbl->pos = pos;
1.1       kristaps  146: }
1.3       kristaps  147:
1.11      kristaps  148: const struct tbl_span *
1.22      schwarze  149: tbl_span(struct tbl_node *tbl)
1.11      kristaps  150: {
1.22      schwarze  151:        struct tbl_span  *span;
1.11      kristaps  152:
                    153:        assert(tbl);
1.22      schwarze  154:        span = tbl->current_span ? tbl->current_span->next
                    155:                                 : tbl->first_span;
                    156:        if (span)
                    157:                tbl->current_span = span;
                    158:        return(span);
1.13      kristaps  159: }
                    160:
1.36      schwarze  161: int
1.26      kristaps  162: tbl_end(struct tbl_node **tblp)
1.13      kristaps  163: {
1.26      kristaps  164:        struct tbl_node *tbl;
1.34      schwarze  165:        struct tbl_span *sp;
1.26      kristaps  166:
                    167:        tbl = *tblp;
                    168:        *tblp = NULL;
1.13      kristaps  169:
1.36      schwarze  170:        if (tbl->part == TBL_PART_CDATA)
                    171:                mandoc_msg(MANDOCERR_TBLDATA_BLK, tbl->parse,
                    172:                    tbl->line, tbl->pos, "TE");
                    173:
1.34      schwarze  174:        sp = tbl->first_span;
                    175:        while (sp != NULL && sp->first == NULL)
                    176:                sp = sp->next;
1.36      schwarze  177:        if (sp == NULL) {
                    178:                mandoc_msg(MANDOCERR_TBLDATA_NONE, tbl->parse,
1.29      schwarze  179:                    tbl->line, tbl->pos, NULL);
1.36      schwarze  180:                return(0);
                    181:        }
                    182:        return(1);
1.16      kristaps  183: }

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