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📄 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)
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📄 compat_isblank.c(986 B)
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📄 compat_ohash.c(6.82 KB)
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📄 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)
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📄 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)
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📄 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: man_macro.c

/*	$Id: man_macro.c,v 1.144 2019/01/05 18:59:46 schwarze Exp $ */
/*
 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2012-2015, 2017-2019 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 "config.h"

#include <sys/types.h>

#include <assert.h>
#include <ctype.h>
#include <stdio.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 *, enum roff_tok);

static const struct man_macro man_macros[MAN_MAX - MAN_TH] = {
	{ in_line_eoln, MAN_XSCOPE }, /* TH */
	{ blk_imp, MAN_XSCOPE | MAN_BSCOPED }, /* SH */
	{ blk_imp, MAN_XSCOPE | MAN_BSCOPED }, /* SS */
	{ blk_imp, MAN_XSCOPE | MAN_BSCOPED }, /* TP */
	{ blk_imp, MAN_XSCOPE | MAN_BSCOPED }, /* TQ */
	{ blk_imp, MAN_XSCOPE }, /* LP */
	{ blk_imp, MAN_XSCOPE }, /* PP */
	{ blk_imp, MAN_XSCOPE }, /* P */
	{ blk_imp, MAN_XSCOPE }, /* IP */
	{ blk_imp, MAN_XSCOPE }, /* HP */
	{ in_line_eoln, MAN_NSCOPED | MAN_ESCOPED | MAN_JOIN }, /* SM */
	{ in_line_eoln, MAN_NSCOPED | MAN_ESCOPED | 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_NSCOPED | MAN_ESCOPED | MAN_JOIN }, /* R */
	{ in_line_eoln, MAN_NSCOPED | MAN_ESCOPED | MAN_JOIN }, /* B */
	{ in_line_eoln, MAN_NSCOPED | MAN_ESCOPED | MAN_JOIN }, /* I */
	{ in_line_eoln, 0 }, /* IR */
	{ in_line_eoln, 0 }, /* RI */
	{ blk_close, MAN_XSCOPE }, /* RE */
	{ blk_exp, MAN_XSCOPE }, /* 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, MAN_NSCOPED }, /* in */
	{ blk_imp, MAN_XSCOPE }, /* SY */
	{ blk_close, MAN_XSCOPE }, /* YS */
	{ in_line_eoln, 0 }, /* OP */
	{ in_line_eoln, MAN_XSCOPE }, /* EX */
	{ in_line_eoln, MAN_XSCOPE }, /* EE */
	{ blk_exp, MAN_XSCOPE }, /* UR */
	{ blk_close, MAN_XSCOPE }, /* UE */
	{ blk_exp, MAN_XSCOPE }, /* MT */
	{ blk_close, MAN_XSCOPE }, /* ME */
};

const struct man_macro *
man_macro(enum roff_tok tok)
{
	assert(tok >= MAN_TH && tok <= MAN_MAX);
	return man_macros + (tok - MAN_TH);
}

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 & NODE_VALID)) {
			if (man->flags & (MAN_BLINE | MAN_ELINE) &&
			    man_macro(n->tok)->flags &
			     (MAN_BSCOPED | MAN_NSCOPED)) {
				mandoc_msg(MANDOCERR_BLK_LINE,
				    n->line, n->pos,
				    "EOF breaks %s", roff_name[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_macro(n->tok)->fp == blk_exp)
				mandoc_msg(MANDOCERR_BLK_NOEND,
				    n->line, n->pos, "%s",
				    roff_name[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 |= NODE_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, enum roff_tok 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 & NODE_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_macro(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)
{
	enum roff_tok		 ctok, ntok;
	const struct roff_node	*nn;
	char			*p, *ep;
	int			 cline, cpos, la, nrew, target;

nrew = 1;
	switch (tok) {
	case MAN_RE:
		ntok = MAN_RS;
		la = *pos;
		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, &ep, 10);
		if (*ep != '\0')
			mandoc_msg(MANDOCERR_ARG_EXCESS, line,
			    la + (buf[la] == '"') + (int)(ep - p),
			    "RE ... %s", ep);
		free(p);
		if (target == 0)
			target = 1;
		nrew -= target;
		if (nrew < 1) {
			mandoc_msg(MANDOCERR_RE_NOTOPEN,
			    line, ppos, "RE %d", target);
			return;
		}
		break;
	case MAN_YS:
		ntok = MAN_SY;
		break;
	case MAN_UE:
		ntok = MAN_UR;
		break;
	case MAN_ME:
		ntok = MAN_MT;
		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,
		    line, ppos, "%s", roff_name[tok]);
		rew_scope(man, MAN_PP);
		if (tok == MAN_RE) {
			roff_elem_alloc(man, line, ppos, ROFF_br);
			man->last->flags |= NODE_LINE |
			    NODE_VALID | NODE_ENDED;
			man->next = ROFF_NEXT_SIBLING;
		}
		return;
	}

cline = man->last->line;
	cpos = man->last->pos;
	ctok = man->last->tok;
	man_unscope(man, nn);

if (tok == MAN_RE && nn->head->aux > 0)
		roff_setreg(man->roff, "an-margin", nn->head->aux, '-');

/* Trailing text. */

if (buf[*pos] != '\0') {
		roff_word_alloc(man, line, ppos, buf + *pos);
		man->last->flags |= NODE_DELIMC;
		if (mandoc_eos(man->last->string, strlen(man->last->string)))
			man->last->flags |= NODE_EOS;
	}

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

if (ctok == MAN_LP || ctok == MAN_PP || ctok == MAN_P) {
		*pos = strlen(buf);
		blk_imp(man, ctok, cline, cpos, pos, buf);
	}

/* Synopsis blocks need an explicit end marker for spacing. */

if (tok == MAN_YS && man->last == nn) {
		roff_elem_alloc(man, line, ppos, tok);
		man_unscope(man, man->last);
	}
}

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

if (tok == MAN_RS) {
		rew_scope(man, tok);
		man->flags |= ROFF_NONOFILL;
	}
	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 (tok == MAN_RS) {
			if (roff_getreg(man->roff, "an-margin") == 0)
				roff_setreg(man->roff, "an-margin",
				    7 * 24, '=');
			if ((head->aux = strtod(p, NULL) * 24.0) > 0)
				roff_setreg(man->roff, "an-margin",
				    head->aux, '+');
		}
		free(p);
	}

if (buf[*pos] != '\0')
		mandoc_msg(MANDOCERR_ARG_EXCESS, line, *pos,
		    "%s ... %s", roff_name[tok], buf + *pos);

man_unscope(man, head);
	roff_body_alloc(man, line, ppos, tok);
	man->flags &= ~ROFF_NONOFILL;
}

/*
 * 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);
	man->flags |= ROFF_NONOFILL;
	if (tok == MAN_SH || tok == MAN_SS)
		man->flags &= ~ROFF_NOFILL;
	roff_block_alloc(man, line, ppos, tok);
	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);
		free(p);
	}

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

if (man_macro(tok)->flags & MAN_BSCOPED &&
	    (tok == MAN_TP || tok == MAN_TQ || 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);
	man->flags &= ~ROFF_NONOFILL;
}

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;

if (tok == MAN_EX)
		man->flags |= ROFF_NOFILL;
	else if (tok == MAN_EE)
		man->flags &= ~ROFF_NOFILL;

for (;;) {
		if (buf[*pos] != '\0' && man->last != n && tok == MAN_PD) {
			mandoc_msg(MANDOCERR_ARG_EXCESS, line, *pos,
			    "%s ... %s", roff_name[tok], buf + *pos);
			break;
		}
		la = *pos;
		if ( ! man_args(man, line, pos, buf, &p))
			break;
		if (man_macro(tok)->flags & MAN_JOIN &&
		    man->last->type == ROFFT_TEXT)
			roff_word_append(man, p);
		else
			roff_word_alloc(man, line, la, p);
		free(p);
	}

/*
	 * Append NODE_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 |= NODE_EOS;

/*
	 * If no arguments are specified and this is MAN_ESCOPED (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_macro(tok)->flags & MAN_ESCOPED) {
		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->last->flags |= NODE_VALID;
		if (man->last == n)
			break;
	}

/* Rewind next-line scoped ancestors, if any. */

if (man_macro(tok)->flags & MAN_ESCOPED)
		man_descope(man, line, ppos, NULL);
}

void
man_endparse(struct roff_man *man)
{
	man_unscope(man, man->meta.first);
}

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 = roff_getarg(man->roff, v, line, pos);
	return 1;
}

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