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

Revision 1.80, Sun Nov 25 19:24:20 2018 UTC (5 years, 4 months ago) by schwarze
Branch: MAIN
Changes since 1.79: +32 -26 lines

In tbl(7) -T html output,
span cells horizontally and vertically as requested by the layout.
Does not handle spans requested in the data section yet.

To be able to do this, record the number of rows spanned
in the first data cell (struct tbl_dat) of a vertical span.

Missing feature reported by Pali dot Rohar at gmail dot com.

/*	$Id: tree.c,v 1.80 2018/11/25 19:24:20 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2013,2014,2015,2017,2018 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 AUTHORS DISCLAIM ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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 <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include "mandoc.h"
#include "roff.h"
#include "mdoc.h"
#include "man.h"
#include "main.h"

static	void	print_box(const struct eqn_box *, int);
static	void	print_man(const struct roff_node *, int);
static	void	print_meta(const struct roff_meta *);
static	void	print_mdoc(const struct roff_node *, int);
static	void	print_span(const struct tbl_span *, int);


void
tree_mdoc(void *arg, const struct roff_man *mdoc)
{
	print_meta(&mdoc->meta);
	putchar('\n');
	print_mdoc(mdoc->first->child, 0);
}

void
tree_man(void *arg, const struct roff_man *man)
{
	print_meta(&man->meta);
	if (man->meta.hasbody == 0)
		puts("body  = empty");
	putchar('\n');
	print_man(man->first->child, 0);
}

static void
print_meta(const struct roff_meta *meta)
{
	if (meta->title != NULL)
		printf("title = \"%s\"\n", meta->title);
	if (meta->name != NULL)
		printf("name  = \"%s\"\n", meta->name);
	if (meta->msec != NULL)
		printf("sec   = \"%s\"\n", meta->msec);
	if (meta->vol != NULL)
		printf("vol   = \"%s\"\n", meta->vol);
	if (meta->arch != NULL)
		printf("arch  = \"%s\"\n", meta->arch);
	if (meta->os != NULL)
		printf("os    = \"%s\"\n", meta->os);
	if (meta->date != NULL)
		printf("date  = \"%s\"\n", meta->date);
}

static void
print_mdoc(const struct roff_node *n, int indent)
{
	const char	 *p, *t;
	int		  i, j;
	size_t		  argc;
	struct mdoc_argv *argv;

	if (n == NULL)
		return;

	argv = NULL;
	argc = 0;
	t = p = NULL;

	switch (n->type) {
	case ROFFT_ROOT:
		t = "root";
		break;
	case ROFFT_BLOCK:
		t = "block";
		break;
	case ROFFT_HEAD:
		t = "head";
		break;
	case ROFFT_BODY:
		if (n->end)
			t = "body-end";
		else
			t = "body";
		break;
	case ROFFT_TAIL:
		t = "tail";
		break;
	case ROFFT_ELEM:
		t = "elem";
		break;
	case ROFFT_TEXT:
		t = "text";
		break;
	case ROFFT_COMMENT:
		t = "comment";
		break;
	case ROFFT_TBL:
		break;
	case ROFFT_EQN:
		t = "eqn";
		break;
	default:
		abort();
	}

	switch (n->type) {
	case ROFFT_TEXT:
	case ROFFT_COMMENT:
		p = n->string;
		break;
	case ROFFT_BODY:
		p = roff_name[n->tok];
		break;
	case ROFFT_HEAD:
		p = roff_name[n->tok];
		break;
	case ROFFT_TAIL:
		p = roff_name[n->tok];
		break;
	case ROFFT_ELEM:
		p = roff_name[n->tok];
		if (n->args) {
			argv = n->args->argv;
			argc = n->args->argc;
		}
		break;
	case ROFFT_BLOCK:
		p = roff_name[n->tok];
		if (n->args) {
			argv = n->args->argv;
			argc = n->args->argc;
		}
		break;
	case ROFFT_TBL:
		break;
	case ROFFT_EQN:
		p = "EQ";
		break;
	case ROFFT_ROOT:
		p = "root";
		break;
	default:
		abort();
	}

	if (n->span) {
		assert(NULL == p && NULL == t);
		print_span(n->span, indent);
	} else {
		for (i = 0; i < indent; i++)
			putchar(' ');

		printf("%s (%s)", p, t);

		for (i = 0; i < (int)argc; i++) {
			printf(" -%s", mdoc_argnames[argv[i].arg]);
			if (argv[i].sz > 0)
				printf(" [");
			for (j = 0; j < (int)argv[i].sz; j++)
				printf(" [%s]", argv[i].value[j]);
			if (argv[i].sz > 0)
				printf(" ]");
		}

		putchar(' ');
		if (NODE_DELIMO & n->flags)
			putchar('(');
		if (NODE_LINE & n->flags)
			putchar('*');
		printf("%d:%d", n->line, n->pos + 1);
		if (NODE_DELIMC & n->flags)
			putchar(')');
		if (NODE_EOS & n->flags)
			putchar('.');
		if (NODE_BROKEN & n->flags)
			printf(" BROKEN");
		if (NODE_NOSRC & n->flags)
			printf(" NOSRC");
		if (NODE_NOPRT & n->flags)
			printf(" NOPRT");
		putchar('\n');
	}

	if (n->eqn)
		print_box(n->eqn->first, indent + 4);
	if (n->child)
		print_mdoc(n->child, indent +
		    (n->type == ROFFT_BLOCK ? 2 : 4));
	if (n->next)
		print_mdoc(n->next, indent);
}

static void
print_man(const struct roff_node *n, int indent)
{
	const char	 *p, *t;
	int		  i;

	if (n == NULL)
		return;

	t = p = NULL;

	switch (n->type) {
	case ROFFT_ROOT:
		t = "root";
		break;
	case ROFFT_ELEM:
		t = "elem";
		break;
	case ROFFT_TEXT:
		t = "text";
		break;
	case ROFFT_COMMENT:
		t = "comment";
		break;
	case ROFFT_BLOCK:
		t = "block";
		break;
	case ROFFT_HEAD:
		t = "head";
		break;
	case ROFFT_BODY:
		t = "body";
		break;
	case ROFFT_TBL:
		break;
	case ROFFT_EQN:
		t = "eqn";
		break;
	default:
		abort();
	}

	switch (n->type) {
	case ROFFT_TEXT:
	case ROFFT_COMMENT:
		p = n->string;
		break;
	case ROFFT_ELEM:
	case ROFFT_BLOCK:
	case ROFFT_HEAD:
	case ROFFT_BODY:
		p = roff_name[n->tok];
		break;
	case ROFFT_ROOT:
		p = "root";
		break;
	case ROFFT_TBL:
		break;
	case ROFFT_EQN:
		p = "EQ";
		break;
	default:
		abort();
	}

	if (n->span) {
		assert(NULL == p && NULL == t);
		print_span(n->span, indent);
	} else {
		for (i = 0; i < indent; i++)
			putchar(' ');
		printf("%s (%s) ", p, t);
		if (NODE_LINE & n->flags)
			putchar('*');
		printf("%d:%d", n->line, n->pos + 1);
		if (NODE_DELIMC & n->flags)
			putchar(')');
		if (NODE_EOS & n->flags)
			putchar('.');
		putchar('\n');
	}

	if (n->eqn)
		print_box(n->eqn->first, indent + 4);
	if (n->child)
		print_man(n->child, indent +
		    (n->type == ROFFT_BLOCK ? 2 : 4));
	if (n->next)
		print_man(n->next, indent);
}

static void
print_box(const struct eqn_box *ep, int indent)
{
	int		 i;
	const char	*t;

	static const char *posnames[] = {
	    NULL, "sup", "subsup", "sub",
	    "to", "from", "fromto",
	    "over", "sqrt", NULL };

	if (NULL == ep)
		return;
	for (i = 0; i < indent; i++)
		putchar(' ');

	t = NULL;
	switch (ep->type) {
	case EQN_LIST:
		t = "eqn-list";
		break;
	case EQN_SUBEXPR:
		t = "eqn-expr";
		break;
	case EQN_TEXT:
		t = "eqn-text";
		break;
	case EQN_PILE:
		t = "eqn-pile";
		break;
	case EQN_MATRIX:
		t = "eqn-matrix";
		break;
	}

	fputs(t, stdout);
	if (ep->pos)
		printf(" pos=%s", posnames[ep->pos]);
	if (ep->left)
		printf(" left=\"%s\"", ep->left);
	if (ep->right)
		printf(" right=\"%s\"", ep->right);
	if (ep->top)
		printf(" top=\"%s\"", ep->top);
	if (ep->bottom)
		printf(" bottom=\"%s\"", ep->bottom);
	if (ep->text)
		printf(" text=\"%s\"", ep->text);
	if (ep->font)
		printf(" font=%d", ep->font);
	if (ep->size != EQN_DEFSIZE)
		printf(" size=%d", ep->size);
	if (ep->expectargs != UINT_MAX && ep->expectargs != ep->args)
		printf(" badargs=%zu(%zu)", ep->args, ep->expectargs);
	else if (ep->args)
		printf(" args=%zu", ep->args);
	putchar('\n');

	print_box(ep->first, indent + 4);
	print_box(ep->next, indent);
}

static void
print_span(const struct tbl_span *sp, int indent)
{
	const struct tbl_dat *dp;
	int		 i;

	for (i = 0; i < indent; i++)
		putchar(' ');

	switch (sp->pos) {
	case TBL_SPAN_HORIZ:
		putchar('-');
		putchar(' ');
		break;
	case TBL_SPAN_DHORIZ:
		putchar('=');
		putchar(' ');
		break;
	default:
		for (dp = sp->first; dp; dp = dp->next) {
			switch (dp->pos) {
			case TBL_DATA_HORIZ:
			case TBL_DATA_NHORIZ:
				putchar('-');
				putchar(' ');
				continue;
			case TBL_DATA_DHORIZ:
			case TBL_DATA_NDHORIZ:
				putchar('=');
				putchar(' ');
				continue;
			default:
				break;
			}
			printf("[\"%s\"", dp->string ? dp->string : "");
			if (dp->hspans)
				printf(">%d", dp->hspans);
			if (dp->vspans)
				printf("v%d", dp->vspans);
			if (dp->layout == NULL)
				putchar('*');
			else if (dp->layout->pos == TBL_CELL_DOWN)
				putchar('^');
			putchar(']');
			putchar(' ');
		}
		break;
	}
	printf("(tbl) %d:1\n", sp->line);
}