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📄 NEWS(60.04 KB)
📄 TODO(23.98 KB)
📄 apropos.1(10.66 KB)
📄 arch.c(1.94 KB)
📄 att.c(1.62 KB)
📄 catman.8(4.49 KB)
📄 catman.c(5.52 KB)
📄 cgi.c(27.06 KB)
📄 cgi.h.example(220 B)
📄 chars.c(13.24 KB)
📄 compat_err.c(2.68 KB)
📄 compat_fts.c(17.42 KB)
📄 compat_fts.h(4.09 KB)
📄 compat_getline.c(1.59 KB)
📄 compat_getsubopt.c(2.89 KB)
📄 compat_isblank.c(986 B)
📄 compat_mkdtemp.c(1.59 KB)
📄 compat_ohash.c(6.82 KB)
📄 compat_ohash.h(2.63 KB)
📄 compat_progname.c(1.05 KB)
📄 compat_reallocarray.c(1.49 KB)
📄 compat_recallocarray.c(2.88 KB)
📄 compat_strcasestr.c(2.38 KB)
📄 compat_stringlist.c(2.71 KB)
📄 compat_stringlist.h(1.73 KB)
📄 compat_strlcat.c(1.71 KB)
📄 compat_strlcpy.c(1.59 KB)
📄 compat_strndup.c(1.3 KB)
📄 compat_strsep.c(2.55 KB)
📄 compat_strtonum.c(1.88 KB)
📄 compat_vasprintf.c(1.55 KB)
📄 config.h(1.33 KB)
📄 configure(17.5 KB)
📄 configure.local.example(11.37 KB)
📄 dba.c(13.02 KB)
📄 dba.h(1.73 KB)
📄 dba_array.c(4.23 KB)
📄 dba_array.h(2 KB)
📄 dba_read.c(2.33 KB)
📄 dba_write.c(2.42 KB)
📄 dba_write.h(1.23 KB)
📄 dbm.c(9.28 KB)
📄 dbm.h(1.94 KB)
📄 dbm_map.c(4.67 KB)
📄 dbm_map.h(1.2 KB)
📄 demandoc.1(2.64 KB)
📄 demandoc.c(5.21 KB)
📄 eqn.7(12.07 KB)
📄 eqn.c(27.21 KB)
📄 eqn.h(2.19 KB)
📄 eqn_html.c(5.91 KB)
📄 eqn_parse.h(1.96 KB)
📄 eqn_term.c(4.83 KB)
📄 gmdiff(1.74 KB)
📄 html.c(19.34 KB)
📄 html.h(3.86 KB)
📄 lib.c(1.07 KB)
📄 lib.in(8.96 KB)
📄 libman.h(1.66 KB)
📄 libmandoc.h(3.21 KB)
📄 libmdoc.h(2.97 KB)
📄 main.c(28.93 KB)
📄 main.h(2.06 KB)
📄 makewhatis.8(4.78 KB)
📄 man-cgi.css(464 B)
📄 man.1(9.33 KB)
📄 man.7(16.8 KB)
📄 man.c(8.62 KB)
📄 man.cgi.3(7.83 KB)
📄 man.cgi.8(11.02 KB)
📄 man.conf.5(3.92 KB)
📄 man.h(991 B)
📄 man.options.1(21.05 KB)
📄 man_html.c(13.39 KB)
📄 man_macro.c(11.4 KB)
📄 man_term.c(25.6 KB)
📄 man_validate.c(11.84 KB)
📄 manconf.h(1.56 KB)
📄 mandoc.1(54.89 KB)
📄 mandoc.3(12.5 KB)
📄 mandoc.c(12.41 KB)
📄 mandoc.css(8.63 KB)
📄 mandoc.db.5(5.74 KB)
📄 mandoc.h(14.92 KB)
📄 mandoc_aux.c(2.42 KB)
📄 mandoc_aux.h(1.31 KB)
📄 mandoc_char.7(29.23 KB)
📄 mandoc_escape.3(9.33 KB)
📄 mandoc_headers.3(12.41 KB)
📄 mandoc_html.3(7.42 KB)
📄 mandoc_malloc.3(4.46 KB)
📄 mandoc_msg.c(8.92 KB)
📄 mandoc_ohash.c(1.58 KB)
📄 mandoc_ohash.h(1004 B)
📄 mandoc_parse.h(1.82 KB)
📄 mandoc_xr.c(2.75 KB)
📄 mandoc_xr.h(1.17 KB)
📄 mandocd.8(4.59 KB)
📄 mandocd.c(5.98 KB)
📄 mandocdb.c(55.16 KB)
📄 manpath.c(7.73 KB)
📄 manpath.h(1.22 KB)
📄 mansearch.3(3.26 KB)
📄 mansearch.c(18.99 KB)
📄 mansearch.h(4.03 KB)
📄 mchars_alloc.3(5.24 KB)
📄 mdoc.7(73.34 KB)
📄 mdoc.c(9.99 KB)
📄 mdoc.h(3.96 KB)
📄 mdoc_argv.c(16.19 KB)
📄 mdoc_html.c(36.48 KB)
📄 mdoc_macro.c(39.55 KB)
📄 mdoc_man.c(37.07 KB)
📄 mdoc_markdown.c(33.41 KB)
📄 mdoc_state.c(5.24 KB)
📄 mdoc_term.c(43.69 KB)
📄 mdoc_validate.c(61.85 KB)
📄 msec.c(1.09 KB)
📄 msec.in(1.48 KB)
📄 out.c(13.61 KB)
📄 out.h(2.26 KB)
📄 preconv.c(3.84 KB)
📄 predefs.in(2.05 KB)
📄 read.c(16.44 KB)
📄 roff.7(61.96 KB)
📄 roff.c(98.93 KB)
📄 roff.h(8.85 KB)
📄 roff_html.c(2.92 KB)
📄 roff_int.h(4.08 KB)
📄 roff_term.c(5.36 KB)
📄 roff_validate.c(3.41 KB)
📄 soelim.1(2.6 KB)
📄 soelim.c(3.76 KB)
📄 st.c(4.33 KB)
📄 tag.c(6.65 KB)
📄 tag.h(1.09 KB)
📄 tbl.3(6.9 KB)
📄 tbl.7(10.91 KB)
📄 tbl.c(3.89 KB)
📄 tbl.h(4.43 KB)
📄 tbl_data.c(7.3 KB)
📄 tbl_html.c(5.74 KB)
📄 tbl_int.h(2.09 KB)
📄 tbl_layout.c(8.06 KB)
📄 tbl_opts.c(3.77 KB)
📄 tbl_parse.h(1.31 KB)
📄 tbl_term.c(24.42 KB)
📄 term.c(24.4 KB)
📄 term.h(6.14 KB)
📄 term_ascii.c(9.88 KB)
📄 term_ps.c(27.41 KB)
📄 term_tab.c(3 KB)
📄 test-EFTYPE.c(56 B)
📄 test-O_DIRECTORY.c(88 B)
📄 test-PATH_MAX.c(1.02 KB)
📄 test-be32toh.c(147 B)
📄 test-cmsg.c(174 B)
📄 test-dirent-namlen.c(124 B)
📄 test-err.c(994 B)
📄 test-fgetln.c(147 B)
📄 test-fts.c(964 B)
📄 test-getline.c(186 B)
📄 test-getsubopt.c(1.31 KB)
📄 test-isblank.c(96 B)
📄 test-mkdtemp.c(175 B)
📄 test-nanosleep.c(239 B)
📄 test-noop.c(30 B)
📄 test-ntohl.c(91 B)
📄 test-ohash.c(585 B)
📄 test-pledge.c(73 B)
📄 test-progname.c(118 B)
📄 test-reallocarray.c(75 B)
📄 test-recallocarray.c(132 B)
📄 test-recvmsg.c(100 B)
📄 test-rewb-bsd.c(618 B)
📄 test-rewb-sysv.c(610 B)
📄 test-sandbox_init.c(186 B)
📄 test-strcasestr.c(131 B)
📄 test-stringlist.c(1.14 KB)
📄 test-strlcat.c(166 B)
📄 test-strlcpy.c(148 B)
📄 test-strndup.c(141 B)
📄 test-strptime.c(212 B)
📄 test-strsep.c(183 B)
📄 test-strtonum.c(1.25 KB)
📄 test-vasprintf.c(1.25 KB)
📄 test-wchar.c(1.58 KB)
📄 tree.c(8.17 KB)

Editing: mdoc.c

/*	$Id: mdoc.c,v 1.274 2018/12/31 07:46:07 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2010, 2012-2018 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 <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_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;
}

/*
 * 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_It)->fp)(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->flags & ROFF_NOFILL)
				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, 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 & ROFF_NOFILL) == 0) {
		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, 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 & ROFF_NOFILL)
		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, 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, ln, sv, "%s", 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, 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(tok)->fp)(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.
	 */

/* Normal processing of a macro. */

(*mdoc_macro(tok)->fp)(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;
}

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Editing: mdoc.c

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