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gno/usr.bin/nroff/nroff.h
gdr 50a93eb0a9 initial checkin
1997-03-14 06:22:29 +00:00

484 lines
14 KiB
C
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#ifndef NRO_H
#define NRO_H
#include "config.h" /* os/compiler options */
#ifndef NEWLINE
#define NEWLINE '\n'
#endif
/*
* nroff.h - stuff for nroff
*
* adapted for atariST/TOS by Bill Rosenkranz 10/89
* net: rosenkra@hall.cray.com
* CIS: 71460,17
* GENIE: W.ROSENKRANZ
*
* things to look for here:
* 1) TMAC definition for default macro package lib
* 2) configuration sizes (see _STKSIZ below if alcyon/dri)
* 3) libc should have getenv(), time(), and ctime()
* 4) look in version.h for *printer file name (included below)
*
* all data is currently allocated in static arrays. the biggest
* chunks are the parameters which control number registers and the
* macro name space area. these are defined below: MAXREGS, MACBUF.
* MACBUF is the larger. it holds all macros, strings, etc. if you
* find yourself running out of macro space, increase MACBUF.
*
* original author:
*
* Stephen L. Browning
* 5723 North Parker Avenue
* Indianapolis, Indiana 46220
*
* history:
*
* - Originally written in BDS C;
* - Adapted for standard C by W. N. Paul
* - Heavily hacked up to conform to "real" nroff by Bill Rosenkranz
*/
#include <ctype.h>
/*
* default prefix of macro files. files will be of the form "tmac.an"
* (for -man), "tmac.s" (for -ms), "tmac.e" (for -me), etc. first
* checks environment for TMACDIR which would be path (e.g. "c:\lib\tmac"
* or ".", no trailing slash char!).
*/
#ifdef tmacfull
# define TMACFULL tmacfull
#endif
#ifdef tmacpre
# define TMACPRE tmacpre
#endif
#ifdef GEMDOS
# ifndef TMACFULL
# define TMACFULL "c:\\lib\\tmac\\tmac."
# endif
# ifndef TMACPRE
# define TMACPRE "\\tmac."
# endif
#endif
#ifdef MINIX
# ifndef TMACFULL
# define TMACFULL "/usr/lib/tmac/tmac."
# endif
# ifndef TMACPRE
# define TMACPRE "/tmac."
# endif
#endif
#ifdef UNIX
# ifndef TMACFULL
# define TMACFULL "/usr/lib/tmac/tmac."
# endif
# ifndef TMACPRE
# define TMACPRE "/tmac."
# endif
#endif
/*
* command codes. indented defines are commands not yet implemented
*/
#undef PI
#define MACRO 0 /* macro definition */
#define BP 1 /* begin page */
#define BR 2 /* break */
#define CE 3 /* center */
#define FI 4 /* fill */
#define FO 5 /* footer */
#define HE 6 /* header */
#define IN 7 /* indent */
#define LS 8 /* line spacing */
#define NF 9 /* no fill */
#define PL 10 /* page length */
#define RM 11 /* remove macro */
#define SP 12 /* line space */
#define TI 13 /* temp indent */
#define UL 14 /* underline */
#define JU 15 /* justify */
#define NJ 16 /* no justify */
#define M1 17 /* top margin */
#define M2 18 /* second top margin */
#define M3 19 /* first bottom margin */
#define M4 20 /* bottom-most margin */
#define BS 21 /* allow/disallow '\b' in output */
#define NE 22 /* need n lines */
#define PC 23 /* page number character (%) */
#define CC 24 /* control character (.) */
#define PO 25 /* page offset */
#define BO 26 /* bold face */
#define EH 27 /* header for even numbered pages */
#define OH 28 /* header for odd numbered pages */
#define EF 29 /* footer for even numbered pages */
#define OF 30 /* footer for odd numbered pages */
#define SO 31 /* source file */
#define CU 32 /* continuous underline */
#define DE 33 /* define macro */
#define EN 34 /* end macro definition */
#define NR 35 /* set number register */
#define EC 36 /* escape character (\) */
#define FT 37 /* font change (R,B,I,S,P) */
#define EO 38 /* turn escape parsing off */
#define LL 39 /* line length (same as RM) */
#define FL 40 /* flush output NOW */
#define PN 41 /* page number for next page */
#define RR 42 /* remove register */
#define C2 43 /* nobreak char */
# define TR 44 /* translate character */
#define LT 45 /* length of title */
# define FC 46 /* field delimeter */
#define TL 47 /* like HE */
#define AF 48 /* assign format to nr */
#define AD 49 /* adjust line */
#define NA 50 /* no adjust */
#define DS 51 /* define string */
#define PM 52 /* print macro names */
#define IF 53 /* if */
# define IE 54 /* if/else */
# define EL 55 /* else */
#define PS 56 /* point size (IGNORED in nroff) */
#define SS 57 /* space char size (IGNORED in nroff) */
#define CS 58 /* constant char space (IGNORED in nroff) */
#define BD 59 /* embolden font (IGNORED in nroff) */
# define FP 60 /* font position */
# define MK 61 /* mark vertical place */
# define RT 62 /* return to marked vert place */
# define VS 63 /* vertical baseline spacing */
# define SV 64 /* save vertical distance */
# define OS 65 /* output saved vertical distance */
# define NS 66 /* no-space mode */
# define RS 67 /* restore spacing mode */
# define AM 68 /* append to macro */
# define AS 69 /* append to string */
# define RN 70 /* rename */
# define DI 71 /* divert to macro */
# define DA 72 /* divert/append to macro */
# define WH 73 /* set location trap */
# define CH 74 /* change trap location */
# define DT 75 /* set diversion trap */
# define IT 76 /* set input line trap */
# define EM 77 /* end macro */
# define TA 78 /* tab settings */
# define TC 79 /* tab repetition char */
# define LC 80 /* leader repetition char */
# define LG 81 /* ligature mode */
# define UF 82 /* underline font */
# define NH 83 /* no hyphenation */
# define HY 84 /* hyphenate */
# define HC 85 /* hyphenation indication char */
# define HW 86 /* hyphenation exception words */
# define NM 87 /* number mode */
# define NN 88 /* no number next lines */
# define EV 89 /* environment switch */
# define RD 90 /* read insertion */
# define EX 91 /* exit */
# define NX 92 /* next file */
# define PI 93 /* pipe to program */
# define MC 94 /* set margin char */
# define TM 95 /* print to terminal */
#define IG 96 /* ignore */
#define COMMENT 1000 /* comment (.\") */
#define UNKNOWN -1
/*
* MAXLINE is set to a value slightly larger than twice the longest
* expected input line. Because of the way underlining is handled, the
* input line which is to be underlined, can almost triple in length.
* Unlike normal underlining and boldfacing, continuous underlining
* affects all characters in the buffer, and represents the worst case
* condition. If the distance between the left margin and the right
* margin is greater than about 65 characters, and continuous underlining
* is in effect, there is a high probability of buffer overflow.
*/
/* FIXME */
#define MAXLINE 500 /*500*/ /* 200 */
#define PAGELEN 66
#define PAGEWIDTH 80
#define HUGE 256
#define INFINITE 32760
#define LEFT 0 /* indecies into hdr margin lim arrays */
#define RIGHT 1
#define Nfiles 4 /* nesting depth for input files */
/*
* The following parameters may be defined elsewhere so undef/def
*/
#undef min
#undef max
#undef YES
#define YES 1
#undef NO
#define NO 0
#undef ERR
#define ERR -1
#define EOS '\0'
#undef FALSE
#define FALSE 0
#undef TRUE
#define TRUE !FALSE
#undef OK
#define OK !ERR
/*
* a rational way of dealing with the NULL thing...
*/
#define NULL_CPTR (char *) 0
#define NULL_FPTR (FILE *) 0
#define NULL_IPTR (int *) 0
#define NULL_LPTR (long *) 0
#define NULL_SPTR (short *) 0
#define NULL_PTR (char *) 0
#define NULLP(type) (type *) 0
/*
* for justification during line fill
*/
#define ADJ_OFF 0
#define ADJ_LEFT 1
#define ADJ_RIGHT 2
#define ADJ_CENTER 3
#define ADJ_BOTH 4
/*
* Markers for various terminal/printer modes
*/
#define S_STANDOUT 128
#define E_STANDOUT 129
#define S_BOLD 130
#define E_BOLD 131
#define S_ITALIC 132
#define E_ITALIC 133
/*
* basic unit (b.u.) conversions. in nroff, all output is fixed spaced,
* at least in THIS nroff. so unit conversion to b.u. amount to 1 Em per
* character or 24 b.u. per character. thus 0.5i = 120 b.u. = 5 chars.
* everything is rounded up to the nearest Em. it is highly recommended
* to use inches for everything...
*
* to convert (say inches) to char spaces, do this:
*
* char_spaces = (int)(inches * (float) BU_INCH) / BU_EM;
*/
#define BU_INCH 240 /* 1.0i = 240 b.u. */
#define BU_CM 945/10 /* 1.0c = 240*50/127 b.u. */
#define BU_PICA 40 /* 1P = 240/6 b.u. */
#define BU_EM 24 /* 1m = 240/10 b.u. (10 char/inch) */
#define BU_EN 24 /* 1n = 240/10 b.u. */
#define BU_POINT 240/72 /* 1p = 240/72 b.u. */
#define BU_BU 1 /* 1 = 1 b.u. */
/*
* The parameter values selected for macro definitions are somewhat
* arbitrary. MACBUF is the storage area for both macro names and
* definitions. Since macro processing is handled by pushing back
* the expansion into the input buffer, the longest possible expansion
* would be MAXLINE characters. Allowing for argument expansion,
* MXMLEN was chosen slightly less than MAXLINE. It is assumed that
* most macro definitions will not exceed 20 characters, hence MXMDEF
* of 150.
*/
#define MXMDEF 150 /* max no. of macro definitions */
#define MACBUF 32000 /*100000*//* macro definition buffer size (32000) */
#define MXMLEN 1000 /* max length of each macro definition (250) */
#define MNLEN 10 /* max length of macro name */
#define MAXREGS 100 /* max number of registers (2-char) */
#define MAXPBB 5000 /* size of push back buffer */
/*
* number registers
*/
#define RF_READ 0x0001 /* register flags */
#define RF_WRITE 0x0002
struct regs
{
char rname[4]; /* 2-char register name */
int rauto; /* autoincrement value */
int rval; /* current value of the register */
int rflag; /* register flags */
char rfmt; /* register format (1,a,A,i,I,...) */
};
/*
* control parameters for nroff
*/
struct docctl
{
int fill; /* fill if YES, init = YES */
int dofnt; /* handle font change, init = YES */
int lsval; /* current line spacing, init = 1 */
int inval; /* current indent, >= 0, init = 0 */
int rmval; /* current right margin, init = 60 */
int llval; /* current line length, init = 60 */
int ltval; /* current title length, init = 60 */
int tival; /* current temp indent, init = 0 */
int ceval; /* number of lines to center, init = 0 */
int ulval; /* number of lines to underline, init = 0 */
int cuval; /* no lines to continuously uline, init = 0 */
int juval; /* justify if YES, init = YES */
int adjval; /* adjust type, init = ADJ_BOTH */
int boval; /* number of lines to bold face, init = 0 */
int bsflg; /* can output contain '\b', init = FALSE */
int prflg; /* print on or off, init = TRUE */
int sprdir; /* direction for spread(), init = 0 */
int flevel; /* nesting depth for source cmd, init = 0 */
int lastfnt; /* previous used font */
int thisfnt; /* current font, init = 1 (1=R,2=I,3=B,4=S) */
int escon; /* whether esc parsing is on, init = YES */
int nr[26]; /* number registers */
int nrauto[26]; /* number registers auto increment */
char nrfmt[26]; /* number registers formats, init = '1' */
/* input code how printed */
/* 1 '1' 1,2,3,... */
/* a 'a' a,b,c,...,aa,bb,cc,... */
/* A 'A' A,B,C,...,AA,BB,CC,... */
/* i 'i' i,ii,iii,iv,v... */
/* I 'I' I,II,III,IV,V... */
/* 01 2 01,02,03,... */
/* 001 3 001,002,003,... */
/* 0..1 8 00000001,00000002,... */
char pgchr; /* page number character, init = '%' */
char cmdchr; /* command character, init = '.' */
char escchr; /* escape char, init = '\' */
char nobrchr; /* nobreak char, init = '\'' */
};
/*
* page control parameters
*/
struct page
{
int curpag; /* current output page number, init =0 */
int newpag; /* next output page number, init = 1 */
int lineno; /* next line to be printed, init = 0 */
int plval; /* page length in lines, init = 66 */
int m1val; /* margin before and including header */
int m2val; /* margin after header */
int m3val; /* margin after last text line */
int m4val; /* bottom margin, including footer */
int bottom; /* last live line on page
= plval - m3val - m4val */
int offset; /* page offset from left, init = 0 */
int frstpg; /* first page to print, init = 0 */
int lastpg; /* last page to print, init = 30000 */
int ehlim[2]; /* left/right margins for headers/footers */
int ohlim[2]; /* init = 0 and PAGEWIDTH */
int eflim[2];
int oflim[2];
char ehead[MAXLINE]; /* top of page title, init = '\n' */
char ohead[MAXLINE];
char efoot[MAXLINE]; /* bottom of page title, init = '\n' */
char ofoot[MAXLINE];
};
/*
* forward refs from nroff
*/
/* main.c */
void debugMessage (const char *fmt, ...);
/* command.c */
void comand (char *p);
int set_ireg (const char *name, int val, int opt);
void set (int *param, int val, char type, int defval, int minval, int maxval);
/* low.c */
int ctod (char *p);
char *skipbl (char *p);
char *skipwd (char *p);
void nroffSpace (int n);
char *getfield (char *p, char *q, char delim);
int getwrd (char *src, char *dest);
int countesc (char *p);
int itoda (int value, char *p, int size);
int itoROMAN (int value, char *p, int size);
int itoroman (int value, char *p, int size);
int itoLETTER (int value, char *p, int size);
int itoletter (int value, char *p, int size);
void err_exit (int code);
/* text.c */
void initOutbuf (void);
void pfoot (void);
void phead (void);
void robrk (void);
void setPrinting (int val);
void skip (int n);
int strkovr (char *p, char *q);
void text (char *p);
/* strings.c */
void defstr (char *line);
/*
* Globals.
*/
extern struct docctl dc;
extern struct page pg;
extern struct regs rg[MAXREGS];
extern FILE *out_stream;
extern FILE *err_stream;
extern FILE *dbg_stream;
extern FILE *sofile[Nfiles+1];
extern int ignoring;
extern int hold_screen;
extern int debugging;
extern int stepping;
extern int mc_ing;
extern int mc_space;
extern char mc_char;
extern char tmpdir[];
extern char s_standout[];
extern char e_standout[];
extern char s_italic[];
extern char e_italic[];
extern char s_bold[];
extern char e_bold[];
extern char *dbgfile;
extern char *printer;
#define MAX(a,b) (((a)>(b))?(a):(b))
#define MIN(a,b) (((a)<(b))?(a):(b))
#define DEBUGGING(args) \
{ \
if (debugging) { \
debugMessage args; \
} \
}
#ifdef DEBUG
#define ASSERT(condition, args) \
{ \
if (!(condition)) { \
printf("%s:%d: assertion failed (%s): ",__FILE__,__LINE__,#condition);\
printf args; \
abort(); \
} \
}
#else
#define ASSERT(condition, args)
#endif
#endif /*NRO_H*/
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