Return to man_action.c CVS log

Up to [local] / src / usr.bin / mandoc

Now that we have proper .de support in the roff(7) library,
it is time to remove the .Sp, .Vb, and .Ve kludge
that was added to the man(7) library to build Perl manuals.

/*	$Id: man_action.c,v 1.28 2010/11/29 02:26:45 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 2010 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.
 */

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

#include "mandoc.h"
#include "libman.h"
#include "libmandoc.h"

#include "out.h"
#include "term.h"
#include "tbl.h"

struct	actions {
	int	(*post)(struct man *);
};

static	int	  post_TH(struct man *);
static	int	  post_fi(struct man *);
static	int	  post_nf(struct man *);
static	int	  post_AT(struct man *);
static	int	  post_UC(struct man *);
static	int	  post_TS(struct man *);

const	struct actions man_actions[MAN_MAX] = {
	{ NULL }, /* br */
	{ post_TH }, /* TH */
	{ NULL }, /* SH */
	{ NULL }, /* SS */
	{ NULL }, /* TP */
	{ NULL }, /* LP */
	{ NULL }, /* PP */
	{ NULL }, /* P */
	{ NULL }, /* IP */
	{ NULL }, /* HP */
	{ NULL }, /* SM */
	{ NULL }, /* SB */
	{ NULL }, /* BI */
	{ NULL }, /* IB */
	{ NULL }, /* BR */
	{ NULL }, /* RB */
	{ NULL }, /* R */
	{ NULL }, /* B */
	{ NULL }, /* I */
	{ NULL }, /* IR */
	{ NULL }, /* RI */
	{ NULL }, /* na */
	{ NULL }, /* i */
	{ NULL }, /* sp */
	{ post_nf }, /* nf */
	{ post_fi }, /* fi */
	{ NULL }, /* r */
	{ NULL }, /* RE */
	{ NULL }, /* RS */
	{ NULL }, /* DT */
	{ post_UC }, /* UC */
	{ NULL }, /* PD */
	{ post_AT }, /* AT */
	{ NULL }, /* in */
	{ post_TS }, /* TS */
	{ NULL }, /* TE */
	{ NULL }, /* ft */
};


int
man_action_post(struct man *m)
{

	if (MAN_ACTED & m->last->flags)
		return(1);
	m->last->flags |= MAN_ACTED;

	switch (m->last->type) {
	case (MAN_TEXT):
		/* FALLTHROUGH */
	case (MAN_ROOT):
		return(1);
	default:
		break;
	}

	if (NULL == man_actions[m->last->tok].post)
		return(1);
	return((*man_actions[m->last->tok].post)(m));
}


static int
post_fi(struct man *m)
{

	if ( ! (MAN_LITERAL & m->flags))
		if ( ! man_nmsg(m, m->last, MANDOCERR_NOSCOPE))
			return(0);
	m->flags &= ~MAN_LITERAL;
	return(1);
}


static int
post_nf(struct man *m)
{

	if (MAN_LITERAL & m->flags)
		if ( ! man_nmsg(m, m->last, MANDOCERR_SCOPEREP))
			return(0);
	m->flags |= MAN_LITERAL;
	return(1);
}


static int
post_TH(struct man *m)
{
	struct man_node	*n;

	if (m->meta.title)
		free(m->meta.title);
	if (m->meta.vol)
		free(m->meta.vol);
	if (m->meta.source)
		free(m->meta.source);
	if (m->meta.msec)
		free(m->meta.msec);
	if (m->meta.rawdate)
		free(m->meta.rawdate);

	m->meta.title = m->meta.vol = m->meta.rawdate =
		m->meta.msec = m->meta.source = NULL;
	m->meta.date = 0;

	/* ->TITLE<- MSEC DATE SOURCE VOL */

	n = m->last->child;
	assert(n);
	m->meta.title = mandoc_strdup(n->string);

	/* TITLE ->MSEC<- DATE SOURCE VOL */

	n = n->next;
	assert(n);
	m->meta.msec = mandoc_strdup(n->string);

	/* TITLE MSEC ->DATE<- SOURCE VOL */

	/*
	 * Try to parse the date.  If this works, stash the epoch (this
	 * is optimal because we can reformat it in the canonical form).
	 * If it doesn't parse, isn't specified at all, or is an empty
	 * string, then use the current date.
	 */

	n = n->next;
	if (n && n->string && *n->string) {
		m->meta.date = mandoc_a2time
			(MTIME_ISO_8601, n->string);
		if (0 == m->meta.date) {
			if ( ! man_nmsg(m, n, MANDOCERR_BADDATE))
				return(0);
			m->meta.rawdate = mandoc_strdup(n->string);
		}
	} else
		m->meta.date = time(NULL);

	/* TITLE MSEC DATE ->SOURCE<- VOL */

	if (n && (n = n->next))
		m->meta.source = mandoc_strdup(n->string);

	/* TITLE MSEC DATE SOURCE ->VOL<- */

	if (n && (n = n->next))
		m->meta.vol = mandoc_strdup(n->string);

	/*
	 * Remove the `TH' node after we've processed it for our
	 * meta-data.
	 */
	man_node_delete(m, m->last);
	return(1);
}


static int
post_AT(struct man *m)
{
	static const char * const unix_versions[] = {
	    "7th Edition",
	    "System III",
	    "System V",
	    "System V Release 2",
	};

	const char	*p, *s;
	struct man_node	*n, *nn;

	n = m->last->child;

	if (NULL == n || MAN_TEXT != n->type)
		p = unix_versions[0];
	else {
		s = n->string;
		if (0 == strcmp(s, "3"))
			p = unix_versions[0];
		else if (0 == strcmp(s, "4"))
			p = unix_versions[1];
		else if (0 == strcmp(s, "5")) {
			nn = n->next;
			if (nn && MAN_TEXT == nn->type && nn->string[0])
				p = unix_versions[3];
			else
				p = unix_versions[2];
		} else
			p = unix_versions[0];
	}

	if (m->meta.source)
		free(m->meta.source);

	m->meta.source = mandoc_strdup(p);

	return(1);
}


static int
post_UC(struct man *m)
{
	static const char * const bsd_versions[] = {
	    "3rd Berkeley Distribution",
	    "4th Berkeley Distribution",
	    "4.2 Berkeley Distribution",
	    "4.3 Berkeley Distribution",
	    "4.4 Berkeley Distribution",
	};

	const char	*p, *s;
	struct man_node	*n;

	n = m->last->child;

	if (NULL == n || MAN_TEXT != n->type)
		p = bsd_versions[0];
	else {
		s = n->string;
		if (0 == strcmp(s, "3"))
			p = bsd_versions[0];
		else if (0 == strcmp(s, "4"))
			p = bsd_versions[1];
		else if (0 == strcmp(s, "5"))
			p = bsd_versions[2];
		else if (0 == strcmp(s, "6"))
			p = bsd_versions[3];
		else if (0 == strcmp(s, "7"))
			p = bsd_versions[4];
		else
			p = bsd_versions[0];
	}

	if (m->meta.source)
		free(m->meta.source);

	m->meta.source = mandoc_strdup(p);

	return(1);
}


static int
post_TS(struct man *m)
{

	if (MAN_HEAD == m->last->type)
		m->last->parent->data.TS = tbl_alloc();

	return(1);
}