xref: /dragonfly/contrib/mdocml/out.h (revision cfd1aba3)
1 /*	$Id: out.h,v 1.21 2011/07/17 15:24:25 kristaps Exp $ */
2 /*
3  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 #ifndef OUT_H
18 #define OUT_H
19 
20 enum	roffscale {
21 	SCALE_CM, /* centimeters (c) */
22 	SCALE_IN, /* inches (i) */
23 	SCALE_PC, /* pica (P) */
24 	SCALE_PT, /* points (p) */
25 	SCALE_EM, /* ems (m) */
26 	SCALE_MM, /* mini-ems (M) */
27 	SCALE_EN, /* ens (n) */
28 	SCALE_BU, /* default horizontal (u) */
29 	SCALE_VS, /* default vertical (v) */
30 	SCALE_FS, /* syn. for u (f) */
31 	SCALE_MAX
32 };
33 
34 struct	roffcol {
35 	size_t		 width; /* width of cell */
36 	size_t		 decimal; /* decimal position in cell */
37 };
38 
39 struct	roffsu {
40 	enum roffscale	  unit;
41 	double		  scale;
42 };
43 
44 typedef	size_t	(*tbl_strlen)(const char *, void *);
45 typedef	size_t	(*tbl_len)(size_t, void *);
46 
47 struct	rofftbl {
48 	tbl_strlen	 slen; /* calculate string length */
49 	tbl_len		 len; /* produce width of empty space */
50 	struct roffcol	*cols; /* master column specifiers */
51 	void		*arg; /* passed to slen and len */
52 };
53 
54 __BEGIN_DECLS
55 
56 #define	SCALE_VS_INIT(p, v) \
57 	do { (p)->unit = SCALE_VS; \
58 	     (p)->scale = (v); } \
59 	while (/* CONSTCOND */ 0)
60 
61 #define	SCALE_HS_INIT(p, v) \
62 	do { (p)->unit = SCALE_BU; \
63 	     (p)->scale = (v); } \
64 	while (/* CONSTCOND */ 0)
65 
66 int	  	  a2roffsu(const char *, struct roffsu *, enum roffscale);
67 void	  	  tblcalc(struct rofftbl *tbl, const struct tbl_span *);
68 
69 __END_DECLS
70 
71 #endif /*!OUT_H*/
72