Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/mandoc/man_macro.c	Lines:	0	130	0.0 %
Date:	2016-12-06	Branches:	0	127	0.0 %


/*	$OpenBSD: man_macro.c,v 1.76 2016/01/08 17:48:04 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2012, 2013, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
 * Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
 *
 * 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 <sys/types.h>

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

#include "mandoc.h"
#include "roff.h"
#include "man.h"
#include "libmandoc.h"
#include "roff_int.h"
#include "libman.h"

static	void		 blk_close(MACRO_PROT_ARGS);
static	void		 blk_exp(MACRO_PROT_ARGS);
static	void		 blk_imp(MACRO_PROT_ARGS);
static	void		 in_line_eoln(MACRO_PROT_ARGS);
static	int		 man_args(struct roff_man *, int,
				int *, char *, char **);
static	void		 rew_scope(struct roff_man *, int);

const	struct man_macro __man_macros[MAN_MAX] = {
	{ in_line_eoln, MAN_NSCOPED }, /* br */
	{ in_line_eoln, MAN_BSCOPE }, /* TH */
	{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SH */
	{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* SS */
	{ blk_imp, MAN_BSCOPE | MAN_SCOPED }, /* TP */
	{ blk_imp, MAN_BSCOPE }, /* LP */
	{ blk_imp, MAN_BSCOPE }, /* PP */
	{ blk_imp, MAN_BSCOPE }, /* P */
	{ blk_imp, MAN_BSCOPE }, /* IP */
	{ blk_imp, MAN_BSCOPE }, /* HP */
	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* SM */
	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* SB */
	{ in_line_eoln, 0 }, /* BI */
	{ in_line_eoln, 0 }, /* IB */
	{ in_line_eoln, 0 }, /* BR */
	{ in_line_eoln, 0 }, /* RB */
	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* R */
	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* B */
	{ in_line_eoln, MAN_SCOPED | MAN_JOIN }, /* I */
	{ in_line_eoln, 0 }, /* IR */
	{ in_line_eoln, 0 }, /* RI */
	{ in_line_eoln, MAN_NSCOPED }, /* sp */
	{ in_line_eoln, MAN_NSCOPED }, /* nf */
	{ in_line_eoln, MAN_NSCOPED }, /* fi */
	{ blk_close, MAN_BSCOPE }, /* RE */
	{ blk_exp, MAN_BSCOPE }, /* RS */
	{ in_line_eoln, 0 }, /* DT */
	{ in_line_eoln, 0 }, /* UC */
	{ in_line_eoln, MAN_NSCOPED }, /* PD */
	{ in_line_eoln, 0 }, /* AT */
	{ in_line_eoln, 0 }, /* in */
	{ in_line_eoln, 0 }, /* ft */
	{ in_line_eoln, 0 }, /* OP */
	{ in_line_eoln, MAN_BSCOPE }, /* EX */
	{ in_line_eoln, MAN_BSCOPE }, /* EE */
	{ blk_exp, MAN_BSCOPE }, /* UR */
	{ blk_close, MAN_BSCOPE }, /* UE */
	{ in_line_eoln, 0 }, /* ll */
};

const	struct man_macro * const man_macros = __man_macros;


void
man_unscope(struct roff_man *man, const struct roff_node *to)
{
	struct roff_node *n;

	to = to->parent;
	n = man->last;
	while (n != to) {

		/* Reached the end of the document? */

		if (to == NULL && ! (n->flags & MAN_VALID)) {
			if (man->flags & (MAN_BLINE | MAN_ELINE) &&
			    man_macros[n->tok].flags & MAN_SCOPED) {
				mandoc_vmsg(MANDOCERR_BLK_LINE,
				    man->parse, n->line, n->pos,
				    "EOF breaks %s",
				    man_macronames[n->tok]);
				if (man->flags & MAN_ELINE)
					man->flags &= ~MAN_ELINE;
				else {
					assert(n->type == ROFFT_HEAD);
					n = n->parent;
					man->flags &= ~MAN_BLINE;
				}
				man->last = n;
				n = n->parent;
				roff_node_delete(man, man->last);
				continue;
			}
			if (n->type == ROFFT_BLOCK &&
			    man_macros[n->tok].fp == blk_exp)
				mandoc_msg(MANDOCERR_BLK_NOEND,
				    man->parse, n->line, n->pos,
				    man_macronames[n->tok]);
		}

		/*
		 * We might delete the man->last node
		 * in the post-validation phase.
		 * Save a pointer to the parent such that
		 * we know where to continue the iteration.
		 */

		man->last = n;
		n = n->parent;
		man->last->flags |= MAN_VALID;
	}

	/*
	 * If we ended up at the parent of the node we were
	 * supposed to rewind to, that means the target node
	 * got deleted, so add the next node we parse as a child
	 * of the parent instead of as a sibling of the target.
	 */

	man->next = (man->last == to) ?
	    ROFF_NEXT_CHILD : ROFF_NEXT_SIBLING;
}

/*
 * Rewinding entails ascending the parse tree until a coherent point,
 * for example, the `SH' macro will close out any intervening `SS'
 * scopes.  When a scope is closed, it must be validated and actioned.
 */
static void
rew_scope(struct roff_man *man, int tok)
{
	struct roff_node *n;

	/* Preserve empty paragraphs before RS. */

	n = man->last;
	if (tok == MAN_RS && n->child == NULL &&
	    (n->tok == MAN_P || n->tok == MAN_PP || n->tok == MAN_LP))
		return;

	for (;;) {
		if (n->type == ROFFT_ROOT)
			return;
		if (n->flags & MAN_VALID) {
			n = n->parent;
			continue;
		}
		if (n->type != ROFFT_BLOCK) {
			if (n->parent->type == ROFFT_ROOT) {
				man_unscope(man, n);
				return;
			} else {
				n = n->parent;
				continue;
			}
		}
		if (tok != MAN_SH && (n->tok == MAN_SH ||
		    (tok != MAN_SS && (n->tok == MAN_SS ||
		     man_macros[n->tok].fp == blk_exp))))
			return;
		man_unscope(man, n);
		n = man->last;
	}
}


/*
 * Close out a generic explicit macro.
 */
void
blk_close(MACRO_PROT_ARGS)
{
	int			 ntok;
	const struct roff_node	*nn;
	char			*p;
	int			 nrew, target;

	nrew = 1;
	switch (tok) {
	case MAN_RE:
		ntok = MAN_RS;
		if ( ! man_args(man, line, pos, buf, &p))
			break;
		for (nn = man->last->parent; nn; nn = nn->parent)
			if (nn->tok == ntok && nn->type == ROFFT_BLOCK)
				nrew++;
		target = strtol(p, &p, 10);
		if (*p != '\0')
			mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
			    line, p - buf, "RE ... %s", p);
		if (target == 0)
			target = 1;
		nrew -= target;
		if (nrew < 1) {
			mandoc_vmsg(MANDOCERR_RE_NOTOPEN, man->parse,
			    line, ppos, "RE %d", target);
			return;
		}
		break;
	case MAN_UE:
		ntok = MAN_UR;
		break;
	default:
		abort();
	}

	for (nn = man->last->parent; nn; nn = nn->parent)
		if (nn->tok == ntok && nn->type == ROFFT_BLOCK && ! --nrew)
			break;

	if (nn == NULL) {
		mandoc_msg(MANDOCERR_BLK_NOTOPEN, man->parse,
		    line, ppos, man_macronames[tok]);
		rew_scope(man, MAN_PP);
	} else {
		line = man->last->line;
		ppos = man->last->pos;
		ntok = man->last->tok;
		man_unscope(man, nn);

		/* Move a trailing paragraph behind the block. */

		if (ntok == MAN_LP || ntok == MAN_PP || ntok == MAN_P) {
			*pos = strlen(buf);
			blk_imp(man, ntok, line, ppos, pos, buf);
		}
	}
}

void
blk_exp(MACRO_PROT_ARGS)
{
	struct roff_node *head;
	char		*p;
	int		 la;

	rew_scope(man, tok);
	roff_block_alloc(man, line, ppos, tok);
	head = roff_head_alloc(man, line, ppos, tok);

	la = *pos;
	if (man_args(man, line, pos, buf, &p))
		roff_word_alloc(man, line, la, p);

	if (buf[*pos] != '\0')
		mandoc_vmsg(MANDOCERR_ARG_EXCESS,
		    man->parse, line, *pos, "%s ... %s",
		    man_macronames[tok], buf + *pos);

	man_unscope(man, head);
	roff_body_alloc(man, line, ppos, tok);
}

/*
 * Parse an implicit-block macro.  These contain a ROFFT_HEAD and a
 * ROFFT_BODY contained within a ROFFT_BLOCK.  Rules for closing out other
 * scopes, such as `SH' closing out an `SS', are defined in the rew
 * routines.
 */
void
blk_imp(MACRO_PROT_ARGS)
{
	int		 la;
	char		*p;
	struct roff_node *n;

	rew_scope(man, tok);
	n = roff_block_alloc(man, line, ppos, tok);
	if (n->tok == MAN_SH || n->tok == MAN_SS)
		man->flags &= ~MAN_LITERAL;
	n = roff_head_alloc(man, line, ppos, tok);

	/* Add line arguments. */

	for (;;) {
		la = *pos;
		if ( ! man_args(man, line, pos, buf, &p))
			break;
		roff_word_alloc(man, line, la, p);
	}

	/*
	 * For macros having optional next-line scope,
	 * keep the head open if there were no arguments.
	 * For `TP', always keep the head open.
	 */

	if (man_macros[tok].flags & MAN_SCOPED &&
	    (tok == MAN_TP || n == man->last)) {
		man->flags |= MAN_BLINE;
		return;
	}

	/* Close out the head and open the body. */

	man_unscope(man, n);
	roff_body_alloc(man, line, ppos, tok);
}

void
in_line_eoln(MACRO_PROT_ARGS)
{
	int		 la;
	char		*p;
	struct roff_node *n;

	roff_elem_alloc(man, line, ppos, tok);
	n = man->last;

	for (;;) {
		if (buf[*pos] != '\0' && (tok == MAN_br ||
		    tok == MAN_fi || tok == MAN_nf)) {
			mandoc_vmsg(MANDOCERR_ARG_SKIP,
			    man->parse, line, *pos, "%s %s",
			    man_macronames[tok], buf + *pos);
			break;
		}
		if (buf[*pos] != '\0' && man->last != n &&
		    (tok == MAN_PD || tok == MAN_ft || tok == MAN_sp)) {
			mandoc_vmsg(MANDOCERR_ARG_EXCESS,
			    man->parse, line, *pos, "%s ... %s",
			    man_macronames[tok], buf + *pos);
			break;
		}
		la = *pos;
		if ( ! man_args(man, line, pos, buf, &p))
			break;
		if (man_macros[tok].flags & MAN_JOIN &&
		    man->last->type == ROFFT_TEXT)
			roff_word_append(man, p);
		else
			roff_word_alloc(man, line, la, p);
	}

	/*
	 * Append MAN_EOS in case the last snipped argument
	 * ends with a dot, e.g. `.IR syslog (3).'
	 */

	if (n != man->last &&
	    mandoc_eos(man->last->string, strlen(man->last->string)))
		man->last->flags |= MAN_EOS;

	/*
	 * If no arguments are specified and this is MAN_SCOPED (i.e.,
	 * next-line scoped), then set our mode to indicate that we're
	 * waiting for terms to load into our context.
	 */

	if (n == man->last && man_macros[tok].flags & MAN_SCOPED) {
		assert( ! (man_macros[tok].flags & MAN_NSCOPED));
		man->flags |= MAN_ELINE;
		return;
	}

	assert(man->last->type != ROFFT_ROOT);
	man->next = ROFF_NEXT_SIBLING;

	/* Rewind our element scope. */

	for ( ; man->last; man->last = man->last->parent) {
		man_state(man, man->last);
		if (man->last == n)
			break;
	}
}

void
man_endparse(struct roff_man *man)
{

	man_unscope(man, man->first);
	man->flags &= ~MAN_LITERAL;
}

static int
man_args(struct roff_man *man, int line, int *pos, char *buf, char **v)
{
	char	 *start;

	assert(*pos);
	*v = start = buf + *pos;
	assert(' ' != *start);

	if ('\0' == *start)
		return 0;

	*v = mandoc_getarg(man->parse, v, line, pos);
	return 1;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: man_macro.c,v 1.76 2016/01/08 17:48:04 schwarze Exp $ */
2			/*
3			* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4			* Copyright (c) 2012, 2013, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
5			* Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
6			*
7			* Permission to use, copy, modify, and distribute this software for any
8			* purpose with or without fee is hereby granted, provided that the above
9			* copyright notice and this permission notice appear in all copies.
10			*
11			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
12			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
14			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18			*/
19			#include <sys/types.h>
20
21			#include <assert.h>
22			#include <ctype.h>
23			#include <stdlib.h>
24			#include <string.h>
25
26			#include "mandoc.h"
27			#include "roff.h"
28			#include "man.h"
29			#include "libmandoc.h"
30			#include "roff_int.h"
31			#include "libman.h"
32
33			static void blk_close(MACRO_PROT_ARGS);
34			static void blk_exp(MACRO_PROT_ARGS);
35			static void blk_imp(MACRO_PROT_ARGS);
36			static void in_line_eoln(MACRO_PROT_ARGS);
37			static int man_args(struct roff_man *, int,
38			int , char , char **);
39			static void rew_scope(struct roff_man *, int);
40
41			const struct man_macro __man_macros[MAN_MAX] = {
42			{ in_line_eoln, MAN_NSCOPED }, /* br */
43			{ in_line_eoln, MAN_BSCOPE }, /* TH */
44			{ blk_imp, MAN_BSCOPE \| MAN_SCOPED }, /* SH */
45			{ blk_imp, MAN_BSCOPE \| MAN_SCOPED }, /* SS */
46			{ blk_imp, MAN_BSCOPE \| MAN_SCOPED }, /* TP */
47			{ blk_imp, MAN_BSCOPE }, /* LP */
48			{ blk_imp, MAN_BSCOPE }, /* PP */
49			{ blk_imp, MAN_BSCOPE }, /* P */
50			{ blk_imp, MAN_BSCOPE }, /* IP */
51			{ blk_imp, MAN_BSCOPE }, /* HP */
52			{ in_line_eoln, MAN_SCOPED \| MAN_JOIN }, /* SM */
53			{ in_line_eoln, MAN_SCOPED \| MAN_JOIN }, /* SB */
54			{ in_line_eoln, 0 }, /* BI */
55			{ in_line_eoln, 0 }, /* IB */
56			{ in_line_eoln, 0 }, /* BR */
57			{ in_line_eoln, 0 }, /* RB */
58			{ in_line_eoln, MAN_SCOPED \| MAN_JOIN }, /* R */
59			{ in_line_eoln, MAN_SCOPED \| MAN_JOIN }, /* B */
60			{ in_line_eoln, MAN_SCOPED \| MAN_JOIN }, /* I */
61			{ in_line_eoln, 0 }, /* IR */
62			{ in_line_eoln, 0 }, /* RI */
63			{ in_line_eoln, MAN_NSCOPED }, /* sp */
64			{ in_line_eoln, MAN_NSCOPED }, /* nf */
65			{ in_line_eoln, MAN_NSCOPED }, /* fi */
66			{ blk_close, MAN_BSCOPE }, /* RE */
67			{ blk_exp, MAN_BSCOPE }, /* RS */
68			{ in_line_eoln, 0 }, /* DT */
69			{ in_line_eoln, 0 }, /* UC */
70			{ in_line_eoln, MAN_NSCOPED }, /* PD */
71			{ in_line_eoln, 0 }, /* AT */
72			{ in_line_eoln, 0 }, /* in */
73			{ in_line_eoln, 0 }, /* ft */
74			{ in_line_eoln, 0 }, /* OP */
75			{ in_line_eoln, MAN_BSCOPE }, /* EX */
76			{ in_line_eoln, MAN_BSCOPE }, /* EE */
77			{ blk_exp, MAN_BSCOPE }, /* UR */
78			{ blk_close, MAN_BSCOPE }, /* UE */
79			{ in_line_eoln, 0 }, /* ll */
80			};
81
82			const struct man_macro * const man_macros = __man_macros;
83
84
85			void
86			man_unscope(struct roff_man man, const struct roff_node to)
87			{
88			struct roff_node *n;
89
90			to = to->parent;
91			n = man->last;
92			while (n != to) {
93
94			/* Reached the end of the document? */
95
96			if (to == NULL && ! (n->flags & MAN_VALID)) {
97			if (man->flags & (MAN_BLINE \| MAN_ELINE) &&
98			man_macros[n->tok].flags & MAN_SCOPED) {
99			mandoc_vmsg(MANDOCERR_BLK_LINE,
100			man->parse, n->line, n->pos,
101			"EOF breaks %s",
102			man_macronames[n->tok]);
103			if (man->flags & MAN_ELINE)
104			man->flags &= ~MAN_ELINE;
105			else {
106			assert(n->type == ROFFT_HEAD);
107			n = n->parent;
108			man->flags &= ~MAN_BLINE;
109			}
110			man->last = n;
111			n = n->parent;
112			roff_node_delete(man, man->last);
113			continue;
114			}
115			if (n->type == ROFFT_BLOCK &&
116			man_macros[n->tok].fp == blk_exp)
117			mandoc_msg(MANDOCERR_BLK_NOEND,
118			man->parse, n->line, n->pos,
119			man_macronames[n->tok]);
120			}
121
122			/*
123			* We might delete the man->last node
124			* in the post-validation phase.
125			* Save a pointer to the parent such that
126			* we know where to continue the iteration.
127			*/
128
129			man->last = n;
130			n = n->parent;
131			man->last->flags \|= MAN_VALID;
132			}
133
134			/*
135			* If we ended up at the parent of the node we were
136			* supposed to rewind to, that means the target node
137			* got deleted, so add the next node we parse as a child
138			* of the parent instead of as a sibling of the target.
139			*/
140
141			man->next = (man->last == to) ?
142			ROFF_NEXT_CHILD : ROFF_NEXT_SIBLING;
143			}
144
145			/*
146			* Rewinding entails ascending the parse tree until a coherent point,
147			* for example, the `SH' macro will close out any intervening `SS'
148			* scopes. When a scope is closed, it must be validated and actioned.
149			*/
150			static void
151			rew_scope(struct roff_man *man, int tok)
152			{
153			struct roff_node *n;
154
155			/* Preserve empty paragraphs before RS. */
156
157			n = man->last;
158			if (tok == MAN_RS && n->child == NULL &&
159			(n->tok == MAN_P \|\| n->tok == MAN_PP \|\| n->tok == MAN_LP))
160			return;
161
162			for (;;) {
163			if (n->type == ROFFT_ROOT)
164			return;
165			if (n->flags & MAN_VALID) {
166			n = n->parent;
167			continue;
168			}
169			if (n->type != ROFFT_BLOCK) {
170			if (n->parent->type == ROFFT_ROOT) {
171			man_unscope(man, n);
172			return;
173			} else {
174			n = n->parent;
175			continue;
176			}
177			}
178			if (tok != MAN_SH && (n->tok == MAN_SH \|\|
179			(tok != MAN_SS && (n->tok == MAN_SS \|\|
180			man_macros[n->tok].fp == blk_exp))))
181			return;
182			man_unscope(man, n);
183			n = man->last;
184			}
185			}
186
187
188			/*
189			* Close out a generic explicit macro.
190			*/
191			void
192			blk_close(MACRO_PROT_ARGS)
193			{
194			int ntok;
195			const struct roff_node *nn;
196			char *p;
197			int nrew, target;
198
199			nrew = 1;
200			switch (tok) {
201			case MAN_RE:
202			ntok = MAN_RS;
203			if ( ! man_args(man, line, pos, buf, &p))
204			break;
205			for (nn = man->last->parent; nn; nn = nn->parent)
206			if (nn->tok == ntok && nn->type == ROFFT_BLOCK)
207			nrew++;
208			target = strtol(p, &p, 10);
209			if (*p != '\0')
210			mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
211			line, p - buf, "RE ... %s", p);
212			if (target == 0)
213			target = 1;
214			nrew -= target;
215			if (nrew < 1) {
216			mandoc_vmsg(MANDOCERR_RE_NOTOPEN, man->parse,
217			line, ppos, "RE %d", target);
218			return;
219			}
220			break;
221			case MAN_UE:
222			ntok = MAN_UR;
223			break;
224			default:
225			abort();
226			}
227
228			for (nn = man->last->parent; nn; nn = nn->parent)
229			if (nn->tok == ntok && nn->type == ROFFT_BLOCK && ! --nrew)
230			break;
231
232			if (nn == NULL) {
233			mandoc_msg(MANDOCERR_BLK_NOTOPEN, man->parse,
234			line, ppos, man_macronames[tok]);
235			rew_scope(man, MAN_PP);
236			} else {
237			line = man->last->line;
238			ppos = man->last->pos;
239			ntok = man->last->tok;
240			man_unscope(man, nn);
241
242			/* Move a trailing paragraph behind the block. */
243
244			if (ntok == MAN_LP \|\| ntok == MAN_PP \|\| ntok == MAN_P) {
245			*pos = strlen(buf);
246			blk_imp(man, ntok, line, ppos, pos, buf);
247			}
248			}
249			}
250
251			void
252			blk_exp(MACRO_PROT_ARGS)
253			{
254			struct roff_node *head;
255			char *p;
256			int la;
257
258			rew_scope(man, tok);
259			roff_block_alloc(man, line, ppos, tok);
260			head = roff_head_alloc(man, line, ppos, tok);
261
262			la = *pos;
263			if (man_args(man, line, pos, buf, &p))
264			roff_word_alloc(man, line, la, p);
265
266			if (buf[*pos] != '\0')
267			mandoc_vmsg(MANDOCERR_ARG_EXCESS,
268			man->parse, line, *pos, "%s ... %s",
269			man_macronames[tok], buf + *pos);
270
271			man_unscope(man, head);
272			roff_body_alloc(man, line, ppos, tok);
273			}
274
275			/*
276			* Parse an implicit-block macro. These contain a ROFFT_HEAD and a
277			* ROFFT_BODY contained within a ROFFT_BLOCK. Rules for closing out other
278			* scopes, such as `SH' closing out an `SS', are defined in the rew
279			* routines.
280			*/
281			void
282			blk_imp(MACRO_PROT_ARGS)
283			{
284			int la;
285			char *p;
286			struct roff_node *n;
287
288			rew_scope(man, tok);
289			n = roff_block_alloc(man, line, ppos, tok);
290			if (n->tok == MAN_SH \|\| n->tok == MAN_SS)
291			man->flags &= ~MAN_LITERAL;
292			n = roff_head_alloc(man, line, ppos, tok);
293
294			/* Add line arguments. */
295
296			for (;;) {
297			la = *pos;
298			if ( ! man_args(man, line, pos, buf, &p))
299			break;
300			roff_word_alloc(man, line, la, p);
301			}
302
303			/*
304			* For macros having optional next-line scope,
305			* keep the head open if there were no arguments.
306			* For `TP', always keep the head open.
307			*/
308
309			if (man_macros[tok].flags & MAN_SCOPED &&
310			(tok == MAN_TP \|\| n == man->last)) {
311			man->flags \|= MAN_BLINE;
312			return;
313			}
314
315			/* Close out the head and open the body. */
316
317			man_unscope(man, n);
318			roff_body_alloc(man, line, ppos, tok);
319			}
320
321			void
322			in_line_eoln(MACRO_PROT_ARGS)
323			{
324			int la;
325			char *p;
326			struct roff_node *n;
327
328			roff_elem_alloc(man, line, ppos, tok);
329			n = man->last;
330
331			for (;;) {
332			if (buf[*pos] != '\0' && (tok == MAN_br \|\|
333			tok == MAN_fi \|\| tok == MAN_nf)) {
334			mandoc_vmsg(MANDOCERR_ARG_SKIP,
335			man->parse, line, *pos, "%s %s",
336			man_macronames[tok], buf + *pos);
337			break;
338			}
339			if (buf[*pos] != '\0' && man->last != n &&
340			(tok == MAN_PD \|\| tok == MAN_ft \|\| tok == MAN_sp)) {
341			mandoc_vmsg(MANDOCERR_ARG_EXCESS,
342			man->parse, line, *pos, "%s ... %s",
343			man_macronames[tok], buf + *pos);
344			break;
345			}
346			la = *pos;
347			if ( ! man_args(man, line, pos, buf, &p))
348			break;
349			if (man_macros[tok].flags & MAN_JOIN &&
350			man->last->type == ROFFT_TEXT)
351			roff_word_append(man, p);
352			else
353			roff_word_alloc(man, line, la, p);
354			}
355
356			/*
357			* Append MAN_EOS in case the last snipped argument
358			* ends with a dot, e.g. `.IR syslog (3).'
359			*/
360
361			if (n != man->last &&
362			mandoc_eos(man->last->string, strlen(man->last->string)))
363			man->last->flags \|= MAN_EOS;
364
365			/*
366			* If no arguments are specified and this is MAN_SCOPED (i.e.,
367			* next-line scoped), then set our mode to indicate that we're
368			* waiting for terms to load into our context.
369			*/
370
371			if (n == man->last && man_macros[tok].flags & MAN_SCOPED) {
372			assert( ! (man_macros[tok].flags & MAN_NSCOPED));
373			man->flags \|= MAN_ELINE;
374			return;
375			}
376
377			assert(man->last->type != ROFFT_ROOT);
378			man->next = ROFF_NEXT_SIBLING;
379
380			/* Rewind our element scope. */
381
382			for ( ; man->last; man->last = man->last->parent) {
383			man_state(man, man->last);
384			if (man->last == n)
385			break;
386			}
387			}
388
389			void
390			man_endparse(struct roff_man *man)
391			{
392
393			man_unscope(man, man->first);
394			man->flags &= ~MAN_LITERAL;
395			}
396
397			static int
398			man_args(struct roff_man man, int line, int pos, char buf, char *v)
399			{
400			char *start;
401
402			assert(*pos);
403			v = start = buf + pos;
404			assert(' ' != *start);
405
406			if ('\0' == *start)
407			return 0;
408
409			*v = mandoc_getarg(man->parse, v, line, pos);
410			return 1;
411			}