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Revision 1.68, Wed Dec 24 18:04:10 2014 UTC (9 years, 3 months ago) by schwarze
Branch: MAIN
Changes since 1.67: +2 -1 lines

For .RS, we need to save the information how much we actually indented
because negative indents can get truncated, in which case we no longer
know how to restore the original indent at the end of the block.
This also solves another case of effectively infinite output found
by jsg@ with afl, triggered by very large negative indents.

/*	$Id: man.h,v 1.68 2014/12/24 18:04:10 schwarze Exp $ */
/*
 * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 * Copyright (c) 2014 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 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.
 */

enum	mant {
	MAN_br = 0,
	MAN_TH,
	MAN_SH,
	MAN_SS,
	MAN_TP,
	MAN_LP,
	MAN_PP,
	MAN_P,
	MAN_IP,
	MAN_HP,
	MAN_SM,
	MAN_SB,
	MAN_BI,
	MAN_IB,
	MAN_BR,
	MAN_RB,
	MAN_R,
	MAN_B,
	MAN_I,
	MAN_IR,
	MAN_RI,
	MAN_na,
	MAN_sp,
	MAN_nf,
	MAN_fi,
	MAN_RE,
	MAN_RS,
	MAN_DT,
	MAN_UC,
	MAN_PD,
	MAN_AT,
	MAN_in,
	MAN_ft,
	MAN_OP,
	MAN_EX,
	MAN_EE,
	MAN_UR,
	MAN_UE,
	MAN_ll,
	MAN_MAX
};

enum	man_type {
	MAN_TEXT,
	MAN_ELEM,
	MAN_ROOT,
	MAN_BLOCK,
	MAN_HEAD,
	MAN_BODY,
	MAN_TBL,
	MAN_EQN
};

struct	man_meta {
	char		*msec; /* `TH' section (1, 3p, etc.) */
	char		*date; /* `TH' normalised date */
	char		*vol; /* `TH' volume */
	char		*title; /* `TH' title (e.g., FOO) */
	char		*source; /* `TH' source (e.g., GNU) */
	int		 hasbody; /* document is not empty */
};

struct	man_node {
	struct man_node	*parent; /* parent AST node */
	struct man_node	*child; /* first child AST node */
	struct man_node	*next; /* sibling AST node */
	struct man_node	*prev; /* prior sibling AST node */
	int		 nchild; /* number children */
	int		 line;
	int		 pos;
	enum mant	 tok; /* tok or MAN__MAX if none */
	int		 flags;
#define	MAN_VALID	(1 << 0) /* has been validated */
#define	MAN_EOS		(1 << 2) /* at sentence boundary */
#define	MAN_LINE	(1 << 3) /* first macro/text on line */
	enum man_type	 type; /* AST node type */
	char		*string; /* TEXT node argument */
	struct man_node	*head; /* BLOCK node HEAD ptr */
	struct man_node *tail; /* BLOCK node TAIL ptr */
	struct man_node	*body; /* BLOCK node BODY ptr */
	const struct tbl_span *span; /* TBL */
	const struct eqn *eqn; /* EQN */
	int		 aux; /* decoded node data, type-dependent */
};

/* Names of macros.  Index is enum mant. */
extern	const char *const *man_macronames;

__BEGIN_DECLS

struct	man;

const struct man_node *man_node(const struct man *);
const struct man_meta *man_meta(const struct man *);
const struct mparse   *man_mparse(const struct man *);
void man_deroff(char **, const struct man_node *);

__END_DECLS