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

Revision 1.49, Sun Sep 15 17:33:57 2013 UTC (7 years, 9 months ago) by schwarze
Branch: MAIN
CVS Tags: VERSION_1_12_2
Changes since 1.48: +6 -3 lines

For some mdoc(7) macros, it is (unfortunately) semantically significant
whether they are the first macro on the line or called by another macro.
To help debugging, indicate this property "first macro on a new input line"
by prefixing an asterisk to the line number in -Ttree output.

/*	$Id: tree.c,v 1.49 2013/09/15 17:33:57 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 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 <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#include "mandoc.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 man_node *, int);
static	void	print_mdoc(const struct mdoc_node *, int);
static	void	print_span(const struct tbl_span *, int);


/* ARGSUSED */
void
tree_mdoc(void *arg, const struct mdoc *mdoc)
{

	print_mdoc(mdoc_node(mdoc), 0);
}


/* ARGSUSED */
void
tree_man(void *arg, const struct man *man)
{

	print_man(man_node(man), 0);
}


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

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

	switch (n->type) {
	case (MDOC_ROOT):
		t = "root";
		break;
	case (MDOC_BLOCK):
		t = "block";
		break;
	case (MDOC_HEAD):
		t = "block-head";
		break;
	case (MDOC_BODY):
		if (n->end)
			t = "body-end";
		else
			t = "block-body";
		break;
	case (MDOC_TAIL):
		t = "block-tail";
		break;
	case (MDOC_ELEM):
		t = "elem";
		break;
	case (MDOC_TEXT):
		t = "text";
		break;
	case (MDOC_TBL):
		/* FALLTHROUGH */
	case (MDOC_EQN):
		break;
	default:
		abort();
		/* NOTREACHED */
	}

	switch (n->type) {
	case (MDOC_TEXT):
		p = n->string;
		break;
	case (MDOC_BODY):
		p = mdoc_macronames[n->tok];
		break;
	case (MDOC_HEAD):
		p = mdoc_macronames[n->tok];
		break;
	case (MDOC_TAIL):
		p = mdoc_macronames[n->tok];
		break;
	case (MDOC_ELEM):
		p = mdoc_macronames[n->tok];
		if (n->args) {
			argv = n->args->argv;
			argc = n->args->argc;
		}
		break;
	case (MDOC_BLOCK):
		p = mdoc_macronames[n->tok];
		if (n->args) {
			argv = n->args->argv;
			argc = n->args->argc;
		}
		break;
	case (MDOC_TBL):
		/* FALLTHROUGH */
	case (MDOC_EQN):
		break;
	case (MDOC_ROOT):
		p = "root";
		break;
	default:
		abort();
		/* NOTREACHED */
	}

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

		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 (MDOC_LINE & n->flags)
			putchar('*');
		printf("%d:%d\n", n->line, n->pos);
	}

	if (n->child)
		print_mdoc(n->child, indent + 1);
	if (n->next)
		print_mdoc(n->next, indent);
}


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

	t = p = NULL;

	switch (n->type) {
	case (MAN_ROOT):
		t = "root";
		break;
	case (MAN_ELEM):
		t = "elem";
		break;
	case (MAN_TEXT):
		t = "text";
		break;
	case (MAN_BLOCK):
		t = "block";
		break;
	case (MAN_HEAD):
		t = "block-head";
		break;
	case (MAN_BODY):
		t = "block-body";
		break;
	case (MAN_TAIL):
		t = "block-tail";
		break;
	case (MAN_TBL):
		/* FALLTHROUGH */
	case (MAN_EQN):
		break;
	default:
		abort();
		/* NOTREACHED */
	}

	switch (n->type) {
	case (MAN_TEXT):
		p = n->string;
		break;
	case (MAN_ELEM):
		/* FALLTHROUGH */
	case (MAN_BLOCK):
		/* FALLTHROUGH */
	case (MAN_HEAD):
		/* FALLTHROUGH */
	case (MAN_TAIL):
		/* FALLTHROUGH */
	case (MAN_BODY):
		p = man_macronames[n->tok];
		break;
	case (MAN_ROOT):
		p = "root";
		break;
	case (MAN_TBL):
		/* FALLTHROUGH */
	case (MAN_EQN):
		break;
	default:
		abort();
		/* NOTREACHED */
	}

	if (n->span) {
		assert(NULL == p && NULL == t);
		print_span(n->span, indent);
	} else if (n->eqn) {
		assert(NULL == p && NULL == t);
		print_box(n->eqn->root, indent);
	} else {
		for (i = 0; i < indent; i++)
			putchar('\t');
		printf("%s (%s) %d:%d\n", p, t, n->line, n->pos);
	}

	if (n->child)
		print_man(n->child, indent + 1);
	if (n->next)
		print_man(n->next, indent);
}

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

	if (NULL == ep)
		return;
	for (i = 0; i < indent; i++)
		putchar('\t');

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

	assert(t);
	printf("%s(%d, %d, %d, %d, %d, \"%s\", \"%s\") %s\n", 
		t, EQN_DEFSIZE == ep->size ? 0 : ep->size,
		ep->pos, ep->font, ep->mark, ep->pile, 
		ep->left ? ep->left : "",
		ep->right ? ep->right : "",
		ep->text ? ep->text : "");

	print_box(ep->first, indent + 1);
	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('\t');

	switch (sp->pos) {
	case (TBL_SPAN_HORIZ):
		putchar('-');
		return;
	case (TBL_SPAN_DHORIZ):
		putchar('=');
		return;
	default:
		break;
	}

	for (dp = sp->first; dp; dp = dp->next) {
		switch (dp->pos) {
		case (TBL_DATA_HORIZ):
			/* FALLTHROUGH */
		case (TBL_DATA_NHORIZ):
			putchar('-');
			continue;
		case (TBL_DATA_DHORIZ):
			/* FALLTHROUGH */
		case (TBL_DATA_NDHORIZ):
			putchar('=');
			continue;
		default:
			break;
		}
		printf("[\"%s\"", dp->string ? dp->string : "");
		if (dp->spans)
			printf("(%d)", dp->spans);
		if (NULL == dp->layout)
			putchar('*');
		putchar(']');
		putchar(' ');
	}

	printf("(tbl) %d:1\n", sp->line);
}