1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
26*7c478bd9Sstevel@tonic-gate #ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.1	*/
28*7c478bd9Sstevel@tonic-gate /*
29*7c478bd9Sstevel@tonic-gate  *
30*7c478bd9Sstevel@tonic-gate  * Definitions used by the troff post-processor for PostScript printers.
31*7c478bd9Sstevel@tonic-gate  *
32*7c478bd9Sstevel@tonic-gate  * DEVNAME should be the name of a device whose font files accurately describe
33*7c478bd9Sstevel@tonic-gate  * what's available on the target printer. It's a string that's combined with
34*7c478bd9Sstevel@tonic-gate  * "/usr/lib/font/dev" to locate the final font directory. It can be changed
35*7c478bd9Sstevel@tonic-gate  * using the -T option, but you may end up getting garbage - the character code
36*7c478bd9Sstevel@tonic-gate  * field must agree with PostScript's character encoding scheme for each font and
37*7c478bd9Sstevel@tonic-gate  * troff's one or two character font names must be mapped into the appropriate
38*7c478bd9Sstevel@tonic-gate  * PostScript font names (typically in the prologue)
39*7c478bd9Sstevel@tonic-gate  *
40*7c478bd9Sstevel@tonic-gate  *
41*7c478bd9Sstevel@tonic-gate  */
43*7c478bd9Sstevel@tonic-gate #define	DEVNAME		"post"		/* name of the target printer */
45*7c478bd9Sstevel@tonic-gate /*
46*7c478bd9Sstevel@tonic-gate  *
47*7c478bd9Sstevel@tonic-gate  * NFONT is the most font positions we'll allow. It's set ridiculously high for no
48*7c478bd9Sstevel@tonic-gate  * good reason.
49*7c478bd9Sstevel@tonic-gate  *
50*7c478bd9Sstevel@tonic-gate  */
52*7c478bd9Sstevel@tonic-gate #define NFONT		60		/* max number of font positions */
54*7c478bd9Sstevel@tonic-gate /*
55*7c478bd9Sstevel@tonic-gate  *
56*7c478bd9Sstevel@tonic-gate  * SLOP controls how much horizontal positioning error we'll accept and primarily
57*7c478bd9Sstevel@tonic-gate  * helps when we're emulating another device. It's used when we output characters
58*7c478bd9Sstevel@tonic-gate  * in oput() to check if troff and the printer have gotten too far out of sync.
59*7c478bd9Sstevel@tonic-gate  * Given in units of points and can be changed using the -S option. Converted to
60*7c478bd9Sstevel@tonic-gate  * machine units in t_init() after the resolution is known.
61*7c478bd9Sstevel@tonic-gate  *
62*7c478bd9Sstevel@tonic-gate  */
64*7c478bd9Sstevel@tonic-gate #define SLOP		.2		/* horizontal error - in points */
66*7c478bd9Sstevel@tonic-gate /*
67*7c478bd9Sstevel@tonic-gate  *
68*7c478bd9Sstevel@tonic-gate  * Fonts are assigned unique internal numbers (positive integers) in their ASCII
69*7c478bd9Sstevel@tonic-gate  * font files. MAXINTERNAL is the largest internal font number that lets the host
70*7c478bd9Sstevel@tonic-gate  * resident and DOCUMENTFONTS stuff work. Used to allocate space for an array that
71*7c478bd9Sstevel@tonic-gate  * keeps track of what fonts we've seen and perhaps downloaded - could be better!
72*7c478bd9Sstevel@tonic-gate  *
73*7c478bd9Sstevel@tonic-gate  */
75*7c478bd9Sstevel@tonic-gate #define MAXINTERNAL	256
77*7c478bd9Sstevel@tonic-gate /*
78*7c478bd9Sstevel@tonic-gate  *
79*7c478bd9Sstevel@tonic-gate  * Several different text line encoding schemes are supported. Print time should
80*7c478bd9Sstevel@tonic-gate  * decrease as the value assigned to encoding (in dpost.c) increases, although the
81*7c478bd9Sstevel@tonic-gate  * only encoding that's well tested is the lowest level one, which produces output
82*7c478bd9Sstevel@tonic-gate  * essentially identical to the original version of dpost. Setting DFLTENCODING to
83*7c478bd9Sstevel@tonic-gate  * 0 will give you the most stable (but slowest) encoding. The encoding scheme can
84*7c478bd9Sstevel@tonic-gate  * also be set on the command line using the -e option. Faster methods are based
85*7c478bd9Sstevel@tonic-gate  * on widthshow and may not place words exactly where troff wanted, but errors will
86*7c478bd9Sstevel@tonic-gate  * usually not be noticeable.
87*7c478bd9Sstevel@tonic-gate  *
88*7c478bd9Sstevel@tonic-gate  */
90*7c478bd9Sstevel@tonic-gate #define MAXENCODING	3
92*7c478bd9Sstevel@tonic-gate #ifndef DFLTENCODING
93*7c478bd9Sstevel@tonic-gate #define DFLTENCODING	0
94*7c478bd9Sstevel@tonic-gate #endif
96*7c478bd9Sstevel@tonic-gate /*
97*7c478bd9Sstevel@tonic-gate  *
98*7c478bd9Sstevel@tonic-gate  * The encoding scheme controls how lines of text are output. In the lower level
99*7c478bd9Sstevel@tonic-gate  * schemes words and horizontal positions are put on the stack as they're read and
100*7c478bd9Sstevel@tonic-gate  * when they're printed it's done in reverse order - the first string printed is
101*7c478bd9Sstevel@tonic-gate  * the one on top of the stack and it's the last one on the line. Faster methods
102*7c478bd9Sstevel@tonic-gate  * may be forced to reverse the order of strings on the stack, making the top one
103*7c478bd9Sstevel@tonic-gate  * the first string on the line. STRINGSPACE sets the size of a character array
104*7c478bd9Sstevel@tonic-gate  * that's used to save the strings that make up  a line of text so they can be
105*7c478bd9Sstevel@tonic-gate  * output in reverse order or perhaps combined in groups for widthshow.
106*7c478bd9Sstevel@tonic-gate  *
107*7c478bd9Sstevel@tonic-gate  * MAXSTACK controls how far we let PostScript's operand stack grow and determines
108*7c478bd9Sstevel@tonic-gate  * the number of strings we'll save before printing all or part of a line of text.
109*7c478bd9Sstevel@tonic-gate  * The internal limit in PostScript printers built by Adobe is 500, so MAXSTACK
110*7c478bd9Sstevel@tonic-gate  * should never be bigger than about 240!
111*7c478bd9Sstevel@tonic-gate  *
112*7c478bd9Sstevel@tonic-gate  * Line is a structure used to keep track of the words (or rather strings) on the
113*7c478bd9Sstevel@tonic-gate  * current line that have been read but not printed. dx is the width troff wants
114*7c478bd9Sstevel@tonic-gate  * to use for a space in the current string. start is where the string began, width
115*7c478bd9Sstevel@tonic-gate  * is the total width of the string, and spaces is the number of space characters
116*7c478bd9Sstevel@tonic-gate  * in the current string. *str points to the start of the string in the strings[]
117*7c478bd9Sstevel@tonic-gate  * array. The Line structure is only used in the higher level encoding schemes.
118*7c478bd9Sstevel@tonic-gate  *
119*7c478bd9Sstevel@tonic-gate  */
121*7c478bd9Sstevel@tonic-gate #define	MAXSTACK	50		/* most strings we'll save at once */
122*7c478bd9Sstevel@tonic-gate #define	STRINGSPACE	2000		/* bytes available for string storage */
124*7c478bd9Sstevel@tonic-gate typedef struct {
126*7c478bd9Sstevel@tonic-gate 	char	*str;			/* where the string is stored */
127*7c478bd9Sstevel@tonic-gate 	int	dx;			/* width of a space */
128*7c478bd9Sstevel@tonic-gate 	int	spaces;			/* number of space characters */
129*7c478bd9Sstevel@tonic-gate 	int	start;			/* horizontal starting position */
130*7c478bd9Sstevel@tonic-gate 	int	width;			/* and its total width */
132*7c478bd9Sstevel@tonic-gate } Line;
134*7c478bd9Sstevel@tonic-gate /*
135*7c478bd9Sstevel@tonic-gate  *
136*7c478bd9Sstevel@tonic-gate  * Simple stuff used to map unrecognized font names into something reasonable. The
137*7c478bd9Sstevel@tonic-gate  * mapping array is initialized using FONTMAP and used in loadfont() whenever the
138*7c478bd9Sstevel@tonic-gate  * job tries to use a font that we don't recognize. Normally only needed when we're
139*7c478bd9Sstevel@tonic-gate  * emulating another device.
140*7c478bd9Sstevel@tonic-gate  *
141*7c478bd9Sstevel@tonic-gate  */
143*7c478bd9Sstevel@tonic-gate typedef struct {
145*7c478bd9Sstevel@tonic-gate 	char	*name;			/* font name we're looking for */
146*7c478bd9Sstevel@tonic-gate 	char	*use;			/* and this is what we should use */
148*7c478bd9Sstevel@tonic-gate } Fontmap;
150*7c478bd9Sstevel@tonic-gate #define	FONTMAP								\
151*7c478bd9Sstevel@tonic-gate 									\
152*7c478bd9Sstevel@tonic-gate 	{								\
153*7c478bd9Sstevel@tonic-gate 	    "G", "H",							\
154*7c478bd9Sstevel@tonic-gate 	    "LO", "S",							\
155*7c478bd9Sstevel@tonic-gate 	    "S2", "S",							\
156*7c478bd9Sstevel@tonic-gate 	    "GI", "HI",							\
157*7c478bd9Sstevel@tonic-gate 	    "HM", "H",							\
158*7c478bd9Sstevel@tonic-gate 	    "HK", "H",							\
159*7c478bd9Sstevel@tonic-gate 	    "HL", "H",							\
160*7c478bd9Sstevel@tonic-gate 	    "PA", "R",							\
161*7c478bd9Sstevel@tonic-gate 	    "PI", "I",							\
162*7c478bd9Sstevel@tonic-gate 	    "PB", "B",							\
163*7c478bd9Sstevel@tonic-gate 	    "PX", "BI",							\
164*7c478bd9Sstevel@tonic-gate 	    NULL, NULL,							\
165*7c478bd9Sstevel@tonic-gate 	}
167*7c478bd9Sstevel@tonic-gate /*
168*7c478bd9Sstevel@tonic-gate  *
169*7c478bd9Sstevel@tonic-gate  * The Fontmap stuff isn't quite enough if we expect to do a good job emulating
170*7c478bd9Sstevel@tonic-gate  * other devices. A recognized font in *realdev's tables may be have a different
171*7c478bd9Sstevel@tonic-gate  * name in *devname's tables, and using the *realdev font may not be the best
172*7c478bd9Sstevel@tonic-gate  * choice. The fix is to use an optional lookup table for *devname that's used to
173*7c478bd9Sstevel@tonic-gate  * map font names into something else before anything else is done. The table we
174*7c478bd9Sstevel@tonic-gate  * use is /usr/lib/font/dev*realdev/fontmaps/devname and if it exists getdevmap()
175*7c478bd9Sstevel@tonic-gate  * uses the file to fill in a Devfontmap array. Then whenever an "x font pos name"
176*7c478bd9Sstevel@tonic-gate  * command is read mapdevfont() uses the lookup table to map name into something
177*7c478bd9Sstevel@tonic-gate  * else before loadfont() is called.
178*7c478bd9Sstevel@tonic-gate  *
179*7c478bd9Sstevel@tonic-gate  */
181*7c478bd9Sstevel@tonic-gate typedef struct {
183*7c478bd9Sstevel@tonic-gate 	char	name[3];		/* map this font name */
184*7c478bd9Sstevel@tonic-gate 	char	use[3];			/* into this one */
186*7c478bd9Sstevel@tonic-gate } Devfontmap;
188*7c478bd9Sstevel@tonic-gate /*
189*7c478bd9Sstevel@tonic-gate  *
190*7c478bd9Sstevel@tonic-gate  * Some of the non-integer valued functions in dpost.c.
191*7c478bd9Sstevel@tonic-gate  *
192*7c478bd9Sstevel@tonic-gate  */
194*7c478bd9Sstevel@tonic-gate char	*mapfont();
195*7c478bd9Sstevel@tonic-gate char	*mapdevfont();