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Annotation of mandoc/tbl_data.c, Revision 1.7

1.7     ! kristaps    1: /*     $Id: tbl_data.c,v 1.6 2011/01/01 21:23:01 kristaps Exp $ */
1.1       kristaps    2: /*
                      3:  * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
                      4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17: #include <assert.h>
                     18: #include <ctype.h>
                     19: #include <stdlib.h>
                     20: #include <string.h>
1.6       kristaps   21: #include <time.h>
1.1       kristaps   22:
                     23: #include "mandoc.h"
                     24: #include "libmandoc.h"
                     25: #include "libroff.h"
                     26:
                     27: static void    data(struct tbl *, struct tbl_span *,
                     28:                        int, const char *, int *);
                     29:
                     30: void
                     31: data(struct tbl *tbl, struct tbl_span *dp,
                     32:                int ln, const char *p, int *pos)
                     33: {
                     34:        struct tbl_dat  *dat;
1.3       kristaps   35:        struct tbl_cell *cp;
1.1       kristaps   36:        int              sv;
                     37:
1.3       kristaps   38:        cp = NULL;
                     39:        if (dp->last && dp->last->layout)
                     40:                cp = dp->last->layout->next;
                     41:        else if (NULL == dp->last)
                     42:                cp = dp->layout->first;
                     43:
                     44:        /* Skip over spanners to data formats. */
                     45:
                     46:        while (cp && (TBL_CELL_VERT == cp->pos ||
                     47:                                TBL_CELL_DVERT == cp->pos))
                     48:                cp = cp->next;
                     49:
1.1       kristaps   50:        /* FIXME: warn about losing data contents if cell is HORIZ. */
                     51:
                     52:        dat = mandoc_calloc(1, sizeof(struct tbl_dat));
1.3       kristaps   53:        dat->layout = cp;
1.7     ! kristaps   54:
        !            55:        if (NULL == dat->layout)
        !            56:                TBL_MSG(tbl, MANDOCERR_TBLEXTRADAT, ln, *pos);
1.1       kristaps   57:
                     58:        if (dp->last) {
                     59:                dp->last->next = dat;
                     60:                dp->last = dat;
                     61:        } else
                     62:                dp->last = dp->first = dat;
                     63:
                     64:        sv = *pos;
                     65:        while (p[*pos] && p[*pos] != tbl->tab)
                     66:                (*pos)++;
                     67:
                     68:        dat->string = mandoc_malloc(*pos - sv + 1);
                     69:        memcpy(dat->string, &p[sv], *pos - sv);
                     70:        dat->string[*pos - sv] = '\0';
                     71:
                     72:        if (p[*pos])
                     73:                (*pos)++;
                     74:
                     75:        if ( ! strcmp(dat->string, "_"))
1.5       kristaps   76:                dat->pos = TBL_DATA_HORIZ;
1.1       kristaps   77:        else if ( ! strcmp(dat->string, "="))
1.5       kristaps   78:                dat->pos = TBL_DATA_DHORIZ;
1.1       kristaps   79:        else if ( ! strcmp(dat->string, "\\_"))
1.5       kristaps   80:                dat->pos = TBL_DATA_NHORIZ;
1.1       kristaps   81:        else if ( ! strcmp(dat->string, "\\="))
1.5       kristaps   82:                dat->pos = TBL_DATA_NDHORIZ;
                     83:        else
                     84:                dat->pos = TBL_DATA_DATA;
1.1       kristaps   85: }
                     86:
1.2       kristaps   87: int
1.1       kristaps   88: tbl_data(struct tbl *tbl, int ln, const char *p)
                     89: {
                     90:        struct tbl_span *dp;
1.3       kristaps   91:        struct tbl_row  *rp;
1.1       kristaps   92:        int              pos;
                     93:
                     94:        pos = 0;
                     95:
                     96:        if ('\0' == p[pos]) {
                     97:                TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
1.4       kristaps   98:                return(0);
1.1       kristaps   99:        }
                    100:
1.3       kristaps  101:        /*
                    102:         * Choose a layout row: take the one following the last parsed
                    103:         * span's.  If that doesn't exist, use the last parsed span's.
                    104:         * If there's no last parsed span, use the first row.  This can
                    105:         * be NULL!
                    106:         */
                    107:
                    108:        if (tbl->last_span) {
                    109:                assert(tbl->last_span->layout);
                    110:                rp = tbl->last_span->layout->next;
                    111:                if (NULL == rp)
                    112:                        rp = tbl->last_span->layout;
                    113:        } else
                    114:                rp = tbl->first_row;
                    115:
1.1       kristaps  116:        dp = mandoc_calloc(1, sizeof(struct tbl_span));
1.3       kristaps  117:        dp->layout = rp;
1.1       kristaps  118:
1.2       kristaps  119:        if (tbl->last_span) {
                    120:                tbl->last_span->next = dp;
                    121:                tbl->last_span = dp;
                    122:        } else
                    123:                tbl->last_span = tbl->first_span = dp;
                    124:
1.1       kristaps  125:        if ( ! strcmp(p, "_")) {
1.5       kristaps  126:                dp->pos = TBL_SPAN_HORIZ;
1.2       kristaps  127:                return(1);
1.1       kristaps  128:        } else if ( ! strcmp(p, "=")) {
1.5       kristaps  129:                dp->pos = TBL_SPAN_DHORIZ;
1.2       kristaps  130:                return(1);
1.1       kristaps  131:        }
1.5       kristaps  132:
                    133:        dp->pos = TBL_SPAN_DATA;
1.1       kristaps  134:
                    135:        while ('\0' != p[pos])
                    136:                data(tbl, dp, ln, p, &pos);
                    137:
1.2       kristaps  138:        return(1);
1.1       kristaps  139: }

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