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Commit	Line	Data
	1	/* $Id: term.h,v 1.101 2014/04/20 16:46:05 schwarze Exp $ */
	2	/*
	3	* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
	4	* Copyright (c) 2011, 2012, 2013, 2014 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 AUTHOR DISCLAIMS ALL WARRANTIES
	11	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	12	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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	#ifndef TERM_H
	19	#define TERM_H
	20
	21	__BEGIN_DECLS
	22
	23	struct termp;
	24
	25	enum termenc {
	26	TERMENC_ASCII,
	27	TERMENC_LOCALE,
	28	TERMENC_UTF8
	29	};
	30
	31	enum termtype {
	32	TERMTYPE_CHAR,
	33	TERMTYPE_PS,
	34	TERMTYPE_PDF
	35	};
	36
	37	enum termfont {
	38	TERMFONT_NONE = 0,
	39	TERMFONT_BOLD,
	40	TERMFONT_UNDER,
	41	TERMFONT_BI,
	42	TERMFONT__MAX
	43	};
	44
	45	#define TERM_MAXMARGIN 100000 /* FIXME */
	46
	47	typedef void (term_margin)(struct termp , const void *);
	48
	49	struct termp_tbl {
	50	int width; /* width in fixed chars */
	51	int decimal; /* decimal point position */
	52	};
	53
	54	struct termp {
	55	enum termtype type;
	56	struct rofftbl tbl; /* table configuration */
	57	int mdocstyle; /* imitate mdoc(7) output */
	58	size_t defindent; /* Default indent for text. */
	59	size_t defrmargin; /* Right margin of the device. */
	60	size_t lastrmargin; /* Right margin before the last ll. */
	61	size_t rmargin; /* Current right margin. */
	62	size_t maxrmargin; /* Max right margin. */
	63	size_t maxcols; /* Max size of buf. */
	64	size_t offset; /* Margin offest. */
	65	size_t tabwidth; /* Distance of tab positions. */
	66	size_t col; /* Bytes in buf. */
	67	size_t viscol; /* Chars on current line. */
	68	size_t trailspace; /* See termp_flushln(). */
	69	int overstep; /* See termp_flushln(). */
	70	int skipvsp; /* Vertical space to skip. */
	71	int flags;
	72	#define TERMP_SENTENCE (1 << 1) /* Space before a sentence. */
	73	#define TERMP_NOSPACE (1 << 2) /* No space before words. */
	74	#define TERMP_NONOSPACE (1 << 3) /* No space (no autounset). */
	75	#define TERMP_NBRWORD (1 << 4) /* Make next word nonbreaking. */
	76	#define TERMP_KEEP (1 << 5) /* Keep words together. */
	77	#define TERMP_PREKEEP (1 << 6) /* ...starting with the next one. */
	78	#define TERMP_SKIPCHAR (1 << 7) /* Skip the next character. */
	79	#define TERMP_NOBREAK (1 << 8) /* See term_flushln(). */
	80	#define TERMP_BRIND (1 << 9) /* See term_flushln(). */
	81	#define TERMP_DANGLE (1 << 10) /* See term_flushln(). */
	82	#define TERMP_HANG (1 << 11) /* See term_flushln(). */
	83	#define TERMP_NOSPLIT (1 << 12) /* See termp_an_pre/post(). */
	84	#define TERMP_SPLIT (1 << 13) /* See termp_an_pre/post(). */
	85	#define TERMP_ANPREC (1 << 14) /* See termp_an_pre(). */
	86	int buf; / Output buffer. */
	87	enum termenc enc; /* Type of encoding. */
	88	struct mchars symtab; / Encoded-symbol table. */
	89	enum termfont fontl; /* Last font set. */
	90	enum termfont fontq[10]; /* Symmetric fonts. */
	91	int fonti; /* Index of font stack. */
	92	term_margin headf; /* invoked to print head */
	93	term_margin footf; /* invoked to print foot */
	94	void (letter)(struct termp , int);
	95	void (begin)(struct termp );
	96	void (end)(struct termp );
	97	void (endline)(struct termp );
	98	void (advance)(struct termp , size_t);
	99	void (setwidth)(struct termp , int, size_t);
	100	size_t (width)(const struct termp , int);
	101	double (hspan)(const struct termp ,
	102	const struct roffsu *);
	103	const void argf; / arg for headf/footf */
	104	struct termp_ps *ps;
	105	};
	106
	107	void term_eqn(struct termp , const struct eqn );
	108	void term_tbl(struct termp , const struct tbl_span );
	109	void term_free(struct termp *);
	110	void term_newln(struct termp *);
	111	void term_vspace(struct termp *);
	112	void term_word(struct termp , const char );
	113	void term_flushln(struct termp *);
	114	void term_begin(struct termp *, term_margin,
	115	term_margin, const void *);
	116	void term_end(struct termp *);
	117
	118	void term_setwidth(struct termp , const char );
	119	size_t term_hspan(const struct termp *,
	120	const struct roffsu *);
	121	size_t term_vspan(const struct termp *,
	122	const struct roffsu *);
	123	size_t term_strlen(const struct termp , const char );
	124	size_t term_len(const struct termp *, size_t);
	125
	126	enum termfont term_fonttop(struct termp *);
	127	const void term_fontq(struct termp );
	128	void term_fontpush(struct termp *, enum termfont);
	129	void term_fontpop(struct termp *);
	130	void term_fontpopq(struct termp , const void );
	131	void term_fontrepl(struct termp *, enum termfont);
	132	void term_fontlast(struct termp *);
	133
	134	__END_DECLS
	135
	136	#endif /!TERM_H/