[BACK]Return to tbl.c CVS log [TXT][DIR] Up to [cvsweb.bsd.lv] / mandoc

Annotation of mandoc/tbl.c, Revision 1.19

1.19    ! kristaps    1: /*     $Id: tbl.c,v 1.18 2011/01/02 12:04:23 kristaps Exp $ */
1.1       kristaps    2: /*
1.4       kristaps    3:  * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1       kristaps    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>
1.3       kristaps   18: #include <stdio.h>
1.1       kristaps   19: #include <stdlib.h>
                     20: #include <string.h>
                     21: #include <time.h>
                     22:
                     23: #include "mandoc.h"
                     24: #include "roff.h"
                     25: #include "libmandoc.h"
                     26: #include "libroff.h"
                     27:
1.17      kristaps   28: static void     tbl_calc(struct tbl_node *);
                     29: static void     tbl_calc_data(struct tbl_node *, struct tbl_dat *);
1.16      kristaps   30: static void     tbl_calc_data_literal(struct tbl_dat *);
1.17      kristaps   31: static void     tbl_calc_data_number(struct tbl_node *, struct tbl_dat *);
1.16      kristaps   32: static void     tbl_calc_data_spanner(struct tbl_dat *);
                     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) {
                     57:        case (TBL_PART_OPTS):
                     58:                return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.6       kristaps   59:        case (TBL_PART_LAYOUT):
                     60:                return(tbl_layout(tbl, ln, p) ? ROFF_IGN : ROFF_ERR);
1.8       kristaps   61:        case (TBL_PART_DATA):
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 *
1.13      kristaps   73: tbl_alloc(int pos, int line, void *data, const mandocmsg msg)
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;
1.5       kristaps   80:        p->data = data;
                     81:        p->msg = msg;
1.10      kristaps   82:        p->part = TBL_PART_OPTS;
1.17      kristaps   83:        p->opts.tab = '\t';
                     84:        p->opts.linesize = 12;
                     85:        p->opts.decimal = '.';
1.1       kristaps   86:        return(p);
                     87: }
                     88:
                     89: void
1.17      kristaps   90: tbl_free(struct tbl_node *p)
1.1       kristaps   91: {
1.10      kristaps   92:        struct tbl_row  *rp;
                     93:        struct tbl_cell *cp;
                     94:        struct tbl_span *sp;
                     95:        struct tbl_dat  *dp;
1.15      kristaps   96:        struct tbl_head *hp;
1.1       kristaps   97:
1.15      kristaps   98:        while (NULL != (rp = p->first_row)) {
1.10      kristaps   99:                p->first_row = rp->next;
                    100:                while (rp->first) {
                    101:                        cp = rp->first;
                    102:                        rp->first = cp->next;
                    103:                        free(cp);
                    104:                }
                    105:                free(rp);
                    106:        }
1.1       kristaps  107:
1.15      kristaps  108:        while (NULL != (sp = p->first_span)) {
1.10      kristaps  109:                p->first_span = sp->next;
                    110:                while (sp->first) {
                    111:                        dp = sp->first;
                    112:                        sp->first = dp->next;
                    113:                        if (dp->string)
                    114:                                free(dp->string);
                    115:                        free(dp);
                    116:                }
                    117:                free(sp);
1.15      kristaps  118:        }
                    119:
                    120:        while (NULL != (hp = p->first_head)) {
                    121:                p->first_head = hp->next;
                    122:                free(hp);
1.10      kristaps  123:        }
1.1       kristaps  124:
1.10      kristaps  125:        free(p);
1.7       kristaps  126: }
                    127:
                    128: void
1.17      kristaps  129: tbl_restart(int line, int pos, struct tbl_node *tbl)
1.7       kristaps  130: {
                    131:
                    132:        tbl->part = TBL_PART_LAYOUT;
1.14      kristaps  133:        tbl->line = line;
                    134:        tbl->pos = pos;
                    135:
                    136:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
                    137:                TBL_MSG(tbl, MANDOCERR_TBLNODATA, tbl->line, tbl->pos);
1.1       kristaps  138: }
1.3       kristaps  139:
1.11      kristaps  140: const struct tbl_span *
1.17      kristaps  141: tbl_span(const struct tbl_node *tbl)
1.11      kristaps  142: {
                    143:
                    144:        assert(tbl);
                    145:        return(tbl->last_span);
1.13      kristaps  146: }
                    147:
                    148: void
1.17      kristaps  149: tbl_end(struct tbl_node *tbl)
1.13      kristaps  150: {
                    151:
                    152:        if (NULL == tbl->first_span || NULL == tbl->first_span->first)
                    153:                TBL_MSG(tbl, MANDOCERR_TBLNODATA, tbl->line, tbl->pos);
1.16      kristaps  154:        else
                    155:                tbl_calc(tbl);
1.18      kristaps  156:
                    157:        if (tbl->last_span)
                    158:                tbl->last_span->flags |= TBL_SPAN_LAST;
1.16      kristaps  159: }
                    160:
                    161: static void
1.17      kristaps  162: tbl_calc(struct tbl_node *tbl)
1.16      kristaps  163: {
                    164:        struct tbl_span *sp;
                    165:        struct tbl_dat  *dp;
                    166:        struct tbl_head *hp;
                    167:
                    168:        /* Calculate width as the max of column cells' widths. */
                    169:
                    170:        for (sp = tbl->first_span; sp; sp = sp->next) {
                    171:                switch (sp->pos) {
                    172:                case (TBL_DATA_HORIZ):
                    173:                        /* FALLTHROUGH */
                    174:                case (TBL_DATA_DHORIZ):
                    175:                        continue;
                    176:                default:
                    177:                        break;
                    178:                }
                    179:                for (dp = sp->first; dp; dp = dp->next)
                    180:                        tbl_calc_data(tbl, dp);
                    181:        }
                    182:
                    183:        /* Calculate width as the simple spanner value. */
                    184:
                    185:        for (hp = tbl->first_head; hp; hp = hp->next)
                    186:                switch (hp->pos) {
                    187:                case (TBL_HEAD_VERT):
                    188:                        hp->width = 1;
                    189:                        break;
                    190:                case (TBL_HEAD_DVERT):
                    191:                        hp->width = 2;
                    192:                        break;
                    193:                default:
                    194:                        break;
                    195:                }
                    196: }
                    197:
                    198: static void
1.17      kristaps  199: tbl_calc_data(struct tbl_node *tbl, struct tbl_dat *data)
1.16      kristaps  200: {
                    201:
                    202:        if (NULL == data->layout)
                    203:                return;
                    204:
                    205:        /* Branch down into data sub-types. */
                    206:
                    207:        switch (data->layout->pos) {
                    208:        case (TBL_CELL_HORIZ):
                    209:                /* FALLTHROUGH */
                    210:        case (TBL_CELL_DHORIZ):
                    211:                tbl_calc_data_spanner(data);
                    212:                break;
                    213:        case (TBL_CELL_LONG):
                    214:                /* FALLTHROUGH */
                    215:        case (TBL_CELL_CENTRE):
                    216:                /* FALLTHROUGH */
                    217:        case (TBL_CELL_LEFT):
                    218:                /* FALLTHROUGH */
                    219:        case (TBL_CELL_RIGHT):
                    220:                tbl_calc_data_literal(data);
                    221:                break;
                    222:        case (TBL_CELL_NUMBER):
                    223:                tbl_calc_data_number(tbl, data);
                    224:                break;
                    225:        default:
                    226:                abort();
                    227:                /* NOTREACHED */
                    228:        }
                    229: }
                    230:
                    231: static void
                    232: tbl_calc_data_spanner(struct tbl_dat *data)
                    233: {
                    234:
                    235:        /* N.B., these are horiz spanners (not vert) so always 1. */
                    236:        data->layout->head->width = 1;
                    237: }
                    238:
                    239: static void
1.17      kristaps  240: tbl_calc_data_number(struct tbl_node *tbl, struct tbl_dat *data)
1.16      kristaps  241: {
                    242:        int              sz, d;
                    243:        char            *dp, pnt;
                    244:
                    245:        /*
                    246:         * First calculate number width and decimal place (last + 1 for
                    247:         * no-decimal numbers).  If the stored decimal is subsequent
                    248:         * ours, make our size longer by that difference
                    249:         * (right-"shifting"); similarly, if ours is subsequent the
                    250:         * stored, then extend the stored size by the difference.
                    251:         * Finally, re-assign the stored values.
                    252:         */
                    253:
                    254:        /* TODO: use spacing modifier. */
                    255:
                    256:        assert(data->string);
                    257:        sz = (int)strlen(data->string);
1.17      kristaps  258:        pnt = tbl->opts.decimal;
1.16      kristaps  259:
                    260:        if (NULL == (dp = strchr(data->string, pnt)))
                    261:                d = sz + 1;
                    262:        else
                    263:                d = (int)(dp - data->string) + 1;
                    264:
                    265:        sz += 2;
                    266:
                    267:        if (data->layout->head->decimal > d) {
                    268:                sz += data->layout->head->decimal - d;
                    269:                d = data->layout->head->decimal;
                    270:        } else
                    271:                data->layout->head->width +=
                    272:                        d - data->layout->head->decimal;
                    273:
                    274:        if (sz > data->layout->head->width)
                    275:                data->layout->head->width = sz;
                    276:        if (d > data->layout->head->decimal)
                    277:                data->layout->head->decimal = d;
1.11      kristaps  278: }
1.16      kristaps  279:
                    280: static void
                    281: tbl_calc_data_literal(struct tbl_dat *data)
                    282: {
                    283:        int              sz, bufsz;
                    284:
                    285:        /*
                    286:         * Calculate our width and use the spacing, with a minimum
                    287:         * spacing dictated by position (centre, e.g,. gets a space on
                    288:         * either side, while right/left get a single adjacent space).
                    289:         */
                    290:
                    291:        assert(data->string);
                    292:        sz = (int)strlen(data->string);
                    293:
                    294:        switch (data->layout->pos) {
                    295:        case (TBL_CELL_LONG):
                    296:                /* FALLTHROUGH */
                    297:        case (TBL_CELL_CENTRE):
                    298:                bufsz = 2;
                    299:                break;
                    300:        default:
                    301:                bufsz = 1;
                    302:                break;
                    303:        }
                    304:
                    305:        if (data->layout->spacing)
                    306:                bufsz = bufsz > data->layout->spacing ?
                    307:                        bufsz : data->layout->spacing;
                    308:
                    309:        sz += bufsz;
                    310:        if (data->layout->head->width < sz)
                    311:                data->layout->head->width = sz;
                    312: }

CVSweb