Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/mandoc/mdoc.c	Lines:	167	171	97.7 %
Date:	2017-11-07	Branches:	133	159	83.6 %


/*	$OpenBSD: mdoc.c,v 1.157 2017/08/11 16:55:10 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2010, 2012-2017 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 <sys/types.h>

#include <assert.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "mandoc_aux.h"
#include "mandoc.h"
#include "roff.h"
#include "mdoc.h"
#include "libmandoc.h"
#include "roff_int.h"
#include "libmdoc.h"

const	char *const __mdoc_argnames[MDOC_ARG_MAX] = {
	"split",		"nosplit",		"ragged",
	"unfilled",		"literal",		"file",
	"offset",		"bullet",		"dash",
	"hyphen",		"item",			"enum",
	"tag",			"diag",			"hang",
	"ohang",		"inset",		"column",
	"width",		"compact",		"std",
	"filled",		"words",		"emphasis",
	"symbolic",		"nested",		"centered"
};
const	char * const *mdoc_argnames = __mdoc_argnames;

static	int		  mdoc_ptext(struct roff_man *, int, char *, int);
static	int		  mdoc_pmacro(struct roff_man *, int, char *, int);


/*
 * Main parse routine.  Parses a single line -- really just hands off to
 * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
 */
int
mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)
{

	if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)
		mdoc->flags |= MDOC_NEWLINE;

	/*
	 * Let the roff nS register switch SYNOPSIS mode early,
	 * such that the parser knows at all times
	 * whether this mode is on or off.
	 * Note that this mode is also switched by the Sh macro.
	 */
	if (roff_getreg(mdoc->roff, "nS"))
		mdoc->flags |= MDOC_SYNOPSIS;
	else
		mdoc->flags &= ~MDOC_SYNOPSIS;

	return roff_getcontrol(mdoc->roff, buf, &offs) ?
	    mdoc_pmacro(mdoc, ln, buf, offs) :
	    mdoc_ptext(mdoc, ln, buf, offs);
}

void
mdoc_macro(MACRO_PROT_ARGS)
{
	assert(tok >= MDOC_Dd && tok < MDOC_MAX);
	(*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
}

void
mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, enum roff_tok tok)
{
	struct roff_node *p;

	p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok);
	roff_node_append(mdoc, p);
	mdoc->next = ROFF_NEXT_CHILD;
}

struct roff_node *
mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos,
    enum roff_tok tok, struct roff_node *body)
{
	struct roff_node *p;

	body->flags |= NODE_ENDED;
	body->parent->flags |= NODE_ENDED;
	p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok);
	p->body = body;
	p->norm = body->norm;
	p->end = ENDBODY_SPACE;
	roff_node_append(mdoc, p);
	mdoc->next = ROFF_NEXT_SIBLING;
	return p;
}

struct roff_node *
mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
    enum roff_tok tok, struct mdoc_arg *args)
{
	struct roff_node *p;

	p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok);
	p->args = args;
	if (p->args)
		(args->refcnt)++;

	switch (tok) {
	case MDOC_Bd:
	case MDOC_Bf:
	case MDOC_Bl:
	case MDOC_En:
	case MDOC_Rs:
		p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
		break;
	default:
		break;
	}
	roff_node_append(mdoc, p);
	mdoc->next = ROFF_NEXT_CHILD;
	return p;
}

void
mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
     enum roff_tok tok, struct mdoc_arg *args)
{
	struct roff_node *p;

	p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok);
	p->args = args;
	if (p->args)
		(args->refcnt)++;

	switch (tok) {
	case MDOC_An:
		p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
		break;
	default:
		break;
	}
	roff_node_append(mdoc, p);
	mdoc->next = ROFF_NEXT_CHILD;
}

void
mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p)
{

	roff_node_unlink(mdoc, p);
	p->prev = p->next = NULL;
	roff_node_append(mdoc, p);
}

/*
 * Parse free-form text, that is, a line that does not begin with the
 * control character.
 */
static int
mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
{
	struct roff_node *n;
	const char	 *cp, *sp;
	char		 *c, *ws, *end;

	n = mdoc->last;

	/*
	 * If a column list contains plain text, assume an implicit item
	 * macro.  This can happen one or more times at the beginning
	 * of such a list, intermixed with non-It mdoc macros and with
	 * nodes generated on the roff level, for example by tbl.
	 */

	if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
	     n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
	    (n->parent != NULL && n->parent->tok == MDOC_Bl &&
	     n->parent->norm->Bl.type == LIST_column)) {
		mdoc->flags |= MDOC_FREECOL;
		mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
		return 1;
	}

	/*
	 * Search for the beginning of unescaped trailing whitespace (ws)
	 * and for the first character not to be output (end).
	 */

	/* FIXME: replace with strcspn(). */
	ws = NULL;
	for (c = end = buf + offs; *c; c++) {
		switch (*c) {
		case ' ':
			if (NULL == ws)
				ws = c;
			continue;
		case '\t':
			/*
			 * Always warn about trailing tabs,
			 * even outside literal context,
			 * where they should be put on the next line.
			 */
			if (NULL == ws)
				ws = c;
			/*
			 * Strip trailing tabs in literal context only;
			 * outside, they affect the next line.
			 */
			if (MDOC_LITERAL & mdoc->flags)
				continue;
			break;
		case '\\':
			/* Skip the escaped character, too, if any. */
			if (c[1])
				c++;
			/* FALLTHROUGH */
		default:
			ws = NULL;
			break;
		}
		end = c + 1;
	}
	*end = '\0';

	if (ws)
		mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
		    line, (int)(ws-buf), NULL);

	/*
	 * Blank lines are allowed in no-fill mode
	 * and cancel preceding \c,
	 * but add a single vertical space elsewhere.
	 */

	if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
		switch (mdoc->last->type) {
		case ROFFT_TEXT:
			sp = mdoc->last->string;
			cp = end = strchr(sp, '\0') - 2;
			if (cp < sp || cp[0] != '\\' || cp[1] != 'c')
				break;
			while (cp > sp && cp[-1] == '\\')
				cp--;
			if ((end - cp) % 2)
				break;
			*end = '\0';
			return 1;
		default:
			break;
		}
		mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
		    line, (int)(c - buf), NULL);
		roff_elem_alloc(mdoc, line, offs, ROFF_sp);
		mdoc->last->flags |= NODE_VALID | NODE_ENDED;
		mdoc->next = ROFF_NEXT_SIBLING;
		return 1;
	}

	roff_word_alloc(mdoc, line, offs, buf+offs);

	if (mdoc->flags & MDOC_LITERAL)
		return 1;

	/*
	 * End-of-sentence check.  If the last character is an unescaped
	 * EOS character, then flag the node as being the end of a
	 * sentence.  The front-end will know how to interpret this.
	 */

	assert(buf < end);

	if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
		mdoc->last->flags |= NODE_EOS;

	for (c = buf + offs; c != NULL; c = strchr(c + 1, '.')) {
		if (c - buf < offs + 2)
			continue;
		if (end - c < 3)
			break;
		if (c[1] != ' ' ||
		    isalnum((unsigned char)c[-2]) == 0 ||
		    isalnum((unsigned char)c[-1]) == 0 ||
		    (c[-2] == 'n' && c[-1] == 'c') ||
		    (c[-2] == 'v' && c[-1] == 's'))
			continue;
		c += 2;
		if (*c == ' ')
			c++;
		if (*c == ' ')
			c++;
		if (isupper((unsigned char)(*c)))
			mandoc_msg(MANDOCERR_EOS, mdoc->parse,
			    line, (int)(c - buf), NULL);
	}

	return 1;
}

/*
 * Parse a macro line, that is, a line beginning with the control
 * character.
 */
static int
mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)
{
	struct roff_node *n;
	const char	 *cp;
	size_t		  sz;
	enum roff_tok	  tok;
	int		  sv;

	/* Determine the line macro. */

	sv = offs;
	tok = TOKEN_NONE;
	for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++)
		offs++;
	if (sz == 2 || sz == 3)
		tok = roffhash_find(mdoc->mdocmac, buf + sv, sz);
	if (tok == TOKEN_NONE) {
		mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
		    ln, sv, buf + sv - 1);
		return 1;
	}

	/* Skip a leading escape sequence or tab. */

	switch (buf[offs]) {
	case '\\':
		cp = buf + offs + 1;
		mandoc_escape(&cp, NULL, NULL);
		offs = cp - buf;
		break;
	case '\t':
		offs++;
		break;
	default:
		break;
	}

	/* Jump to the next non-whitespace word. */

	while (buf[offs] == ' ')
		offs++;

	/*
	 * Trailing whitespace.  Note that tabs are allowed to be passed
	 * into the parser as "text", so we only warn about spaces here.
	 */

	if ('\0' == buf[offs] && ' ' == buf[offs - 1])
		mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
		    ln, offs - 1, NULL);

	/*
	 * If an initial macro or a list invocation, divert directly
	 * into macro processing.
	 */

	n = mdoc->last;
	if (n == NULL || tok == MDOC_It || tok == MDOC_El) {
		mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
		return 1;
	}

	/*
	 * If a column list contains a non-It macro, assume an implicit
	 * item macro.  This can happen one or more times at the
	 * beginning of such a list, intermixed with text lines and
	 * with nodes generated on the roff level, for example by tbl.
	 */

	if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
	     n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
	    (n->parent != NULL && n->parent->tok == MDOC_Bl &&
	     n->parent->norm->Bl.type == LIST_column)) {
		mdoc->flags |= MDOC_FREECOL;
		mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
		return 1;
	}

	/* Normal processing of a macro. */

	mdoc_macro(mdoc, tok, ln, sv, &offs, buf);

	/* In quick mode (for mandocdb), abort after the NAME section. */

	if (mdoc->quick && MDOC_Sh == tok &&
	    SEC_NAME != mdoc->last->sec)
		return 2;

	return 1;
}

enum mdelim
mdoc_isdelim(const char *p)
{

	if ('\0' == p[0])
		return DELIM_NONE;

	if ('\0' == p[1])
		switch (p[0]) {
		case '(':
		case '[':
			return DELIM_OPEN;
		case '|':
			return DELIM_MIDDLE;
		case '.':
		case ',':
		case ';':
		case ':':
		case '?':
		case '!':
		case ')':
		case ']':
			return DELIM_CLOSE;
		default:
			return DELIM_NONE;
		}

	if ('\\' != p[0])
		return DELIM_NONE;

	if (0 == strcmp(p + 1, "."))
		return DELIM_CLOSE;
	if (0 == strcmp(p + 1, "fR|\\fP"))
		return DELIM_MIDDLE;

	return DELIM_NONE;
}

void
mdoc_validate(struct roff_man *mdoc)
{

	mdoc->last = mdoc->first;
	mdoc_node_validate(mdoc);
	mdoc_state_reset(mdoc);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: mdoc.c,v 1.157 2017/08/11 16:55:10 schwarze Exp $ */
2			/*
3			* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4			* Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18			#include <sys/types.h>
19
20			#include <assert.h>
21			#include <ctype.h>
22			#include <stdarg.h>
23			#include <stdio.h>
24			#include <stdlib.h>
25			#include <string.h>
26			#include <time.h>
27
28			#include "mandoc_aux.h"
29			#include "mandoc.h"
30			#include "roff.h"
31			#include "mdoc.h"
32			#include "libmandoc.h"
33			#include "roff_int.h"
34			#include "libmdoc.h"
35
36			const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
37			"split", "nosplit", "ragged",
38			"unfilled", "literal", "file",
39			"offset", "bullet", "dash",
40			"hyphen", "item", "enum",
41			"tag", "diag", "hang",
42			"ohang", "inset", "column",
43			"width", "compact", "std",
44			"filled", "words", "emphasis",
45			"symbolic", "nested", "centered"
46			};
47			const char * const *mdoc_argnames = __mdoc_argnames;
48
49			static int mdoc_ptext(struct roff_man , int, char , int);
50			static int mdoc_pmacro(struct roff_man , int, char , int);
51
52
53			/*
54			* Main parse routine. Parses a single line -- really just hands off to
55			* the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
56			*/
57			int
58			mdoc_parseln(struct roff_man mdoc, int ln, char buf, int offs)
59			{
60
61	✓✓✓✓	1593016	if (mdoc->last->type != ROFFT_EQN \|\| ln > mdoc->last->line)
62		1592443	mdoc->flags \|= MDOC_NEWLINE;
63
64			/*
65			* Let the roff nS register switch SYNOPSIS mode early,
66			* such that the parser knows at all times
67			* whether this mode is on or off.
68			* Note that this mode is also switched by the Sh macro.
69			*/
70		3184922	if (roff_getreg(mdoc->roff, "nS"))
71		1592461	mdoc->flags \|= MDOC_SYNOPSIS;
72			else
73		1592461	mdoc->flags &= ~MDOC_SYNOPSIS;
74
75	✓✓	4777383	return roff_getcontrol(mdoc->roff, buf, &offs) ?
76		903894	mdoc_pmacro(mdoc, ln, buf, offs) :
77		688567	mdoc_ptext(mdoc, ln, buf, offs);
78			}
79
80			void
81			mdoc_macro(MACRO_PROT_ARGS)
82			{
83	✗✓	2200624	assert(tok >= MDOC_Dd && tok < MDOC_MAX);
84		1100312	(*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
85		1100312	}
86
87			void
88			mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, enum roff_tok tok)
89			{
90			struct roff_node *p;
91
92		978	p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok);
93		489	roff_node_append(mdoc, p);
94		489	mdoc->next = ROFF_NEXT_CHILD;
95		489	}
96
97			struct roff_node *
98			mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos,
99			enum roff_tok tok, struct roff_node *body)
100			{
101			struct roff_node *p;
102
103		3294	body->flags \|= NODE_ENDED;
104		1647	body->parent->flags \|= NODE_ENDED;
105		1647	p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok);
106		1647	p->body = body;
107		1647	p->norm = body->norm;
108		1647	p->end = ENDBODY_SPACE;
109		1647	roff_node_append(mdoc, p);
110		1647	mdoc->next = ROFF_NEXT_SIBLING;
111		1647	return p;
112			}
113
114			struct roff_node *
115			mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
116			enum roff_tok tok, struct mdoc_arg *args)
117			{
118			struct roff_node *p;
119
120		628026	p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok);
121		314013	p->args = args;
122	✓✓	314013	if (p->args)
123		31606	(args->refcnt)++;
124
125	✗✗✗✗ ✓✓	347070	switch (tok) {
126			case MDOC_Bd:
127			case MDOC_Bf:
128			case MDOC_Bl:
129			case MDOC_En:
130			case MDOC_Rs:
131		33057	p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
132		33057	break;
133			default:
134			break;
135			}
136		314013	roff_node_append(mdoc, p);
137		314013	mdoc->next = ROFF_NEXT_CHILD;
138		314013	return p;
139			}
140
141			void
142			mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
143			enum roff_tok tok, struct mdoc_arg *args)
144			{
145			struct roff_node *p;
146
147		1409560	p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok);
148		704780	p->args = args;
149	✓✓	704780	if (p->args)
150		2142	(args->refcnt)++;
151
152	✓✓	704780	switch (tok) {
153			case MDOC_An:
154		5785	p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
155		5785	break;
156			default:
157			break;
158			}
159		704780	roff_node_append(mdoc, p);
160		704780	mdoc->next = ROFF_NEXT_CHILD;
161		704780	}
162
163			void
164			mdoc_node_relink(struct roff_man mdoc, struct roff_node p)
165			{
166
167		4080	roff_node_unlink(mdoc, p);
168		2040	p->prev = p->next = NULL;
169		2040	roff_node_append(mdoc, p);
170		2040	}
171
172			/*
173			* Parse free-form text, that is, a line that does not begin with the
174			* control character.
175			*/
176			static int
177			mdoc_ptext(struct roff_man mdoc, int line, char buf, int offs)
178			{
179			struct roff_node *n;
180			const char cp, sp;
181			char c, ws, *end;
182
183		688567	n = mdoc->last;
184
185			/*
186			* If a column list contains plain text, assume an implicit item
187			* macro. This can happen one or more times at the beginning
188			* of such a list, intermixed with non-It mdoc macros and with
189			* nodes generated on the roff level, for example by tbl.
190			*/
191
192	✓✓✓✓ ✓✓	690772	if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
193	✓✓✓✓	666	n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) \|\|
194	✓✗✓✓	1377098	(n->parent != NULL && n->parent->tok == MDOC_Bl &&
195		297	n->parent->norm->Bl.type == LIST_column)) {
196		36	mdoc->flags \|= MDOC_FREECOL;
197		36	mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
198		36	return 1;
199			}
200
201			/*
202			* Search for the beginning of unescaped trailing whitespace (ws)
203			* and for the first character not to be output (end).
204			*/
205
206			/* FIXME: replace with strcspn(). */
207			ws = NULL;
208	✓✓	46160446	for (c = end = buf + offs; *c; c++) {
209	✓✓✓✓	22405158	switch (*c) {
210			case ' ':
211	✓✓	3344399	if (NULL == ws)
212		3260115	ws = c;
213			continue;
214			case '\t':
215			/*
216			* Always warn about trailing tabs,
217			* even outside literal context,
218			* where they should be put on the next line.
219			*/
220	✓✓	31035	if (NULL == ws)
221		24246	ws = c;
222			/*
223			* Strip trailing tabs in literal context only;
224			* outside, they affect the next line.
225			*/
226	✓✓	31035	if (MDOC_LITERAL & mdoc->flags)
227			continue;
228			break;
229			case '\\':
230			/* Skip the escaped character, too, if any. */
231	✓✗	13466	if (c[1])
232		13466	c++;
233			/* FALLTHROUGH */
234			default:
235			ws = NULL;
236		19016258	break;
237			}
238		19017176	end = c + 1;
239		19017176	}
240		688531	*end = '\0';
241
242	✓✓	688531	if (ws)
243		722	mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
244		361	line, (int)(ws-buf), NULL);
245
246			/*
247			* Blank lines are allowed in no-fill mode
248			* and cancel preceding \c,
249			* but add a single vertical space elsewhere.
250			*/
251
252	✓✓✓✓	692581	if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
253	✓✓	252	switch (mdoc->last->type) {
254			case ROFFT_TEXT:
255		144	sp = mdoc->last->string;
256		144	cp = end = strchr(sp, '\0') - 2;
257	✓✗✓✓ ✓✗	297	if (cp < sp \|\| cp[0] != '\\' \|\| cp[1] != 'c')
258			break;
259	✓✗✗✓	18	while (cp > sp && cp[-1] == '\\')
260			cp--;
261	✓✗	9	if ((end - cp) % 2)
262			break;
263		9	*end = '\0';
264		9	return 1;
265			default:
266			break;
267			}
268		486	mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
269		243	line, (int)(c - buf), NULL);
270		243	roff_elem_alloc(mdoc, line, offs, ROFF_sp);
271		243	mdoc->last->flags \|= NODE_VALID \| NODE_ENDED;
272		243	mdoc->next = ROFF_NEXT_SIBLING;
273		243	return 1;
274			}
275
276		688279	roff_word_alloc(mdoc, line, offs, buf+offs);
277
278	✓✓	688279	if (mdoc->flags & MDOC_LITERAL)
279		51397	return 1;
280
281			/*
282			* End-of-sentence check. If the last character is an unescaped
283			* EOS character, then flag the node as being the end of a
284			* sentence. The front-end will know how to interpret this.
285			*/
286
287	✗✓	636882	assert(buf < end);
288
289	✓✓	636882	if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
290		203089	mdoc->last->flags \|= NODE_EOS;
291
292	✓✓	2577060	for (c = buf + offs; c != NULL; c = strchr(c + 1, '.')) {
293	✓✓	855766	if (c - buf < offs + 2)
294			continue;
295	✓✓	218383	if (end - c < 3)
296			break;
297	✓✓✗✓	14271	if (c[1] != ' ' \|\|
298	✓✓	1535	isalnum((unsigned char)c[-2]) == 0 \|\|
299	✓✓	141	isalnum((unsigned char)c[-1]) == 0 \|\|
300	✓✓✓✓	148	(c[-2] == 'n' && c[-1] == 'c') \|\|
301	✓✓	110	(c[-2] == 'v' && c[-1] == 's'))
302			continue;
303		98	c += 2;
304	✓✓	98	if (*c == ' ')
305		7	c++;
306	✗✓	98	if (*c == ' ')
307			c++;
308	✓✓	98	if (isupper((unsigned char)(*c)))
309		48	mandoc_msg(MANDOCERR_EOS, mdoc->parse,
310		24	line, (int)(c - buf), NULL);
311			}
312
313		636882	return 1;
314		688567	}
315
316			/*
317			* Parse a macro line, that is, a line beginning with the control
318			* character.
319			*/
320			static int
321			mdoc_pmacro(struct roff_man mdoc, int ln, char buf, int offs)
322			{
323			struct roff_node *n;
324		903894	const char *cp;
325			size_t sz;
326			enum roff_tok tok;
327		903894	int sv;
328
329			/* Determine the line macro. */
330
331		903894	sv = offs;
332			tok = TOKEN_NONE;
333	✓✓✓✓	8137044	for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++)
334		1808469	offs++;
335	✓✓	903894	if (sz == 2 \|\| sz == 3)
336		903849	tok = roffhash_find(mdoc->mdocmac, buf + sv, sz);
337	✓✓	903894	if (tok == TOKEN_NONE) {
338		90	mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
339		45	ln, sv, buf + sv - 1);
340		45	return 1;
341			}
342
343			/* Skip a leading escape sequence or tab. */
344
345	✓✓✓	1635210	switch (buf[offs]) {
346			case '\\':
347		18	cp = buf + offs + 1;
348		18	mandoc_escape(&cp, NULL, NULL);
349		18	offs = cp - buf;
350		18	break;
351			case '\t':
352		18	offs++;
353		18	break;
354			default:
355			break;
356			}
357
358			/* Jump to the next non-whitespace word. */
359
360	✓✓	2366499	while (buf[offs] == ' ')
361		731325	offs++;
362
363			/*
364			* Trailing whitespace. Note that tabs are allowed to be passed
365			* into the parser as "text", so we only warn about spaces here.
366			*/
367
368	✓✓✓✓	1077522	if ('\0' == buf[offs] && ' ' == buf[offs - 1])
369		36	mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
370			ln, offs - 1, NULL);
371
372			/*
373			* If an initial macro or a list invocation, divert directly
374			* into macro processing.
375			*/
376
377		903849	n = mdoc->last;
378	✓✓	903849	if (n == NULL \|\| tok == MDOC_It \|\| tok == MDOC_El) {
379		132557	mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
380		132557	return 1;
381			}
382
383			/*
384			* If a column list contains a non-It macro, assume an implicit
385			* item macro. This can happen one or more times at the
386			* beginning of such a list, intermixed with text lines and
387			* with nodes generated on the roff level, for example by tbl.
388			*/
389
390	✓✓✓✓ ✓✓	789768	if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
391	✓✓✓✓	330	n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) \|\|
392	✓✓✓✓	1525280	(n->parent != NULL && n->parent->tok == MDOC_Bl &&
393		444	n->parent->norm->Bl.type == LIST_column)) {
394		54	mdoc->flags \|= MDOC_FREECOL;
395		54	mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
396		54	return 1;
397			}
398
399			/* Normal processing of a macro. */
400
401		771238	mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
402
403			/* In quick mode (for mandocdb), abort after the NAME section. */
404
405	✗✓✗✗	771238	if (mdoc->quick && MDOC_Sh == tok &&
406			SEC_NAME != mdoc->last->sec)
407			return 2;
408
409		771238	return 1;
410		903894	}
411
412			enum mdelim
413			mdoc_isdelim(const char *p)
414			{
415
416	✓✓	6212444	if ('\0' == p[0])
417		1413	return DELIM_NONE;
418
419	✓✓	3104809	if ('\0' == p[1])
420	✗✓✓✗ ✗✗✗✗ ✗✗✓✓	1283392	switch (p[0]) {
421			case '(':
422			case '[':
423		7656	return DELIM_OPEN;
424			case '\|':
425		10263	return DELIM_MIDDLE;
426			case '.':
427			case ',':
428			case ';':
429			case ':':
430			case '?':
431			case '!':
432			case ')':
433			case ']':
434		319134	return DELIM_CLOSE;
435			default:
436		946339	return DELIM_NONE;
437			}
438
439	✓✓	1821417	if ('\\' != p[0])
440		1787363	return DELIM_NONE;
441
442	✓✓	34054	if (0 == strcmp(p + 1, "."))
443		273	return DELIM_CLOSE;
444	✓✓	33781	if (0 == strcmp(p + 1, "fR\|\\fP"))
445		186	return DELIM_MIDDLE;
446
447		33595	return DELIM_NONE;
448		3106222	}
449
450			void
451			mdoc_validate(struct roff_man *mdoc)
452			{
453
454		34500	mdoc->last = mdoc->first;
455		17250	mdoc_node_validate(mdoc);
456		17250	mdoc_state_reset(mdoc);
457		17250	}