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File: [cvsweb.bsd.lv] / mandoc / tbl_html.c (download)

Revision 1.10, Sun May 27 17:54:54 2012 UTC (9 years ago) by schwarze
Branch: MAIN
CVS Tags: VERSION_1_12_3, VERSION_1_12_2
Changes since 1.9: +6 -14 lines

Do not handle vertical lines as additional tbl(7) columns,
instead save their properties with the following column.
This simplifies layout parsing and saves a lot of code
related to column handling.

At output time, print all white space and vertical lines
separating columns before printing the following column,
and none after printing the preceding column, considerably
simplifying white space handling and width calculations.

No functional change, but it saves 150 lines of code,
and it allows the next patch to tbl_term.c, tbl_literal().

"Please check them in and I'll look into them later!" kristaps@

/*	$Id: tbl_html.c,v 1.10 2012/05/27 17:54:54 schwarze Exp $ */
/*
 * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 *
 * 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.
 */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#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 *);

/* ARGSUSED */
static size_t
html_tbl_len(size_t sz, void *arg)
{
	
	return(sz);
}

/* ARGSUSED */
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)
{
	const struct tbl_head *hp;
	struct htmlpair	 tag;
	struct roffsu	 su;
	struct roffcol	*col;

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

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

	for (hp = sp->head; hp; hp = hp->next) {
		bufinit(h);
		col = &h->tbl.cols[hp->ident];
		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_head *hp;
	const struct tbl_dat *dp;
	struct htmlpair	 tag;
	struct tag	*tt;

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

	if (NULL == h->tblt)
		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):
		/* FALLTHROUGH */
	case (TBL_SPAN_DHORIZ):
		PAIR_INIT(&tag, ATTR_COLSPAN, "0");
		print_otag(h, TAG_TD, 1, &tag);
		break;
	default:
		dp = sp->first;
		for (hp = sp->head; hp; hp = hp->next) {
			print_stagq(h, tt);
			print_otag(h, TAG_TD, 0, NULL);

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

	print_tagq(h, tt);

	h->flags &= ~HTML_NONOSPACE;

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

}