/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */ /* * * Definitions used by the troff post-processor for PostScript printers. * * DEVNAME should be the name of a device whose font files accurately describe * what's available on the target printer. It's a string that's combined with * "/usr/lib/font/dev" to locate the final font directory. It can be changed * using the -T option, but you may end up getting garbage - the character code * field must agree with PostScript's character encoding scheme for each font and * troff's one or two character font names must be mapped into the appropriate * PostScript font names (typically in the prologue) * * */ #define DEVNAME "post" /* name of the target printer */ /* * * NFONT is the most font positions we'll allow. It's set ridiculously high for no * good reason. * */ #define NFONT 60 /* max number of font positions */ /* * * SLOP controls how much horizontal positioning error we'll accept and primarily * helps when we're emulating another device. It's used when we output characters * in oput() to check if troff and the printer have gotten too far out of sync. * Given in units of points and can be changed using the -S option. Converted to * machine units in t_init() after the resolution is known. * */ #define SLOP .2 /* horizontal error - in points */ /* * * Fonts are assigned unique internal numbers (positive integers) in their ASCII * font files. MAXINTERNAL is the largest internal font number that lets the host * resident and DOCUMENTFONTS stuff work. Used to allocate space for an array that * keeps track of what fonts we've seen and perhaps downloaded - could be better! * */ #define MAXINTERNAL 256 /* * * Several different text line encoding schemes are supported. Print time should * decrease as the value assigned to encoding (in dpost.c) increases, although the * only encoding that's well tested is the lowest level one, which produces output * essentially identical to the original version of dpost. Setting DFLTENCODING to * 0 will give you the most stable (but slowest) encoding. The encoding scheme can * also be set on the command line using the -e option. Faster methods are based * on widthshow and may not place words exactly where troff wanted, but errors will * usually not be noticeable. * */ #define MAXENCODING 3 #ifndef DFLTENCODING #define DFLTENCODING 0 #endif /* * * The encoding scheme controls how lines of text are output. In the lower level * schemes words and horizontal positions are put on the stack as they're read and * when they're printed it's done in reverse order - the first string printed is * the one on top of the stack and it's the last one on the line. Faster methods * may be forced to reverse the order of strings on the stack, making the top one * the first string on the line. STRINGSPACE sets the size of a character array * that's used to save the strings that make up a line of text so they can be * output in reverse order or perhaps combined in groups for widthshow. * * MAXSTACK controls how far we let PostScript's operand stack grow and determines * the number of strings we'll save before printing all or part of a line of text. * The internal limit in PostScript printers built by Adobe is 500, so MAXSTACK * should never be bigger than about 240! * * Line is a structure used to keep track of the words (or rather strings) on the * current line that have been read but not printed. dx is the width troff wants * to use for a space in the current string. start is where the string began, width * is the total width of the string, and spaces is the number of space characters * in the current string. *str points to the start of the string in the strings[] * array. The Line structure is only used in the higher level encoding schemes. * */ #define MAXSTACK 50 /* most strings we'll save at once */ #define STRINGSPACE 2000 /* bytes available for string storage */ typedef struct { char *str; /* where the string is stored */ int dx; /* width of a space */ int spaces; /* number of space characters */ int start; /* horizontal starting position */ int width; /* and its total width */ } Line; /* * * Simple stuff used to map unrecognized font names into something reasonable. The * mapping array is initialized using FONTMAP and used in loadfont() whenever the * job tries to use a font that we don't recognize. Normally only needed when we're * emulating another device. * */ typedef struct { char *name; /* font name we're looking for */ char *use; /* and this is what we should use */ } Fontmap; #define FONTMAP \ \ { \ "G", "H", \ "LO", "S", \ "S2", "S", \ "GI", "HI", \ "HM", "H", \ "HK", "H", \ "HL", "H", \ "PA", "R", \ "PI", "I", \ "PB", "B", \ "PX", "BI", \ NULL, NULL, \ } /* * * The Fontmap stuff isn't quite enough if we expect to do a good job emulating * other devices. A recognized font in *realdev's tables may be have a different * name in *devname's tables, and using the *realdev font may not be the best * choice. The fix is to use an optional lookup table for *devname that's used to * map font names into something else before anything else is done. The table we * use is /usr/lib/font/dev*realdev/fontmaps/devname and if it exists getdevmap() * uses the file to fill in a Devfontmap array. Then whenever an "x font pos name" * command is read mapdevfont() uses the lookup table to map name into something * else before loadfont() is called. * */ typedef struct { char name[3]; /* map this font name */ char use[3]; /* into this one */ } Devfontmap; /* * * Some of the non-integer valued functions in dpost.c. * */ char *mapfont(); char *mapdevfont();
