cmd/mandoc/tbl_html.c

/*  $Id: tbl_html.c,v 1.18 2015/10/12 00:08:16 schwarze Exp $ */
/*
 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#include "config.h"

#include <sys/types.h>

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "mandoc.h"
#include "out.h"
#include "html.h"

static  void     html_tblopen(struct html *, const struct tbl_span *);
static  size_t   html_tbl_len(size_t, void *);
static  size_t   html_tbl_strlen(const char *, void *);


static size_t
html_tbl_len(size_t sz, void *arg)
{

    return sz;
}

static size_t
html_tbl_strlen(const char *p, void *arg)
{

    return strlen(p);
}

static void
html_tblopen(struct html *h, const struct tbl_span *sp)
{
    struct htmlpair  tag;
    struct roffsu    su;
    struct roffcol  *col;
    int      ic;

    if (h->tbl.cols == NULL) {
        h->tbl.len = html_tbl_len;
        h->tbl.slen = html_tbl_strlen;
        tblcalc(&h->tbl, sp, 0);
    }

    assert(NULL == h->tblt);
    PAIR_CLASS_INIT(&tag, "tbl");
    h->tblt = print_otag(h, TAG_TABLE, 1, &tag);

    for (ic = 0; ic < sp->opts->cols; ic++) {
        bufinit(h);
        col = h->tbl.cols + ic;
        SCALE_HS_INIT(&su, col->width);
        bufcat_su(h, "width", &su);
        PAIR_STYLE_INIT(&tag, h);
        print_otag(h, TAG_COL, 1, &tag);
    }

    print_otag(h, TAG_TBODY, 0, NULL);
}

void
print_tblclose(struct html *h)
{

    assert(h->tblt);
    print_tagq(h, h->tblt);
    h->tblt = NULL;
}

void
print_tbl(struct html *h, const struct tbl_span *sp)
{
    const struct tbl_dat *dp;
    struct htmlpair  tag;
    struct tag  *tt;
    int      ic;

    /* Inhibit printing of spaces: we do padding ourselves. */

    if (h->tblt == NULL)
        html_tblopen(h, sp);

    assert(h->tblt);

    h->flags |= HTML_NONOSPACE;
    h->flags |= HTML_NOSPACE;

    tt = print_otag(h, TAG_TR, 0, NULL);

    switch (sp->pos) {
    case TBL_SPAN_HORIZ:
    case TBL_SPAN_DHORIZ:
        PAIR_INIT(&tag, ATTR_COLSPAN, "0");
        print_otag(h, TAG_TD, 1, &tag);
        break;
    default:
        dp = sp->first;
        for (ic = 0; ic < sp->opts->cols; ic++) {
            print_stagq(h, tt);
            print_otag(h, TAG_TD, 0, NULL);

            if (dp == NULL || dp->layout->col > ic)
                continue;
            if (dp->layout->pos != TBL_CELL_DOWN)
                if (dp->string != NULL)
                    print_text(h, dp->string);
            dp = dp->next;
        }
        break;
    }

    print_tagq(h, tt);

    h->flags &= ~HTML_NONOSPACE;

    if (sp->next == NULL) {
        assert(h->tbl.cols);
        free(h->tbl.cols);
        h->tbl.cols = NULL;
        print_tblclose(h);
    }

}