date and time created 80/10/30 00:36:13 by mckusick
[unix-history] / usr / src / usr.bin / ex / ex_tune.h
... / ...
CommitLineData
1/* Copyright (c) 1980 Regents of the University of California */
2/* sccs id: @(#)ex_tune.h 6.1 %G% */
3/*
4 * Definitions of editor parameters and limits
5 */
6
7/*
8 * Pathnames.
9 *
10 * Only exstrings is looked at "+4", i.e. if you give
11 * "/usr/lib/..." here, "/lib" will be tried only for strings.
12 */
13#include "local/uparm.h"
14#define EXRECOVER libpath(ex3.6recover)
15#define EXPRESERVE libpath(ex3.6preserve)
16#ifndef VMUNIX
17#define EXSTRINGS libpath(ex3.6strings)
18#endif
19
20/*
21 * If your system believes that tabs expand to a width other than
22 * 8 then your makefile should cc with -DTABS=whatever, otherwise we use 8.
23 */
24#ifndef TABS
25#define TABS 8
26#endif
27
28/*
29 * Maximums
30 *
31 * The definition of LBSIZE should be the same as BUFSIZ (512 usually).
32 * Most other definitions are quite generous.
33 */
34/* FNSIZE is also defined in expreserve.c */
35#define FNSIZE 128 /* File name size */
36#ifdef VMUNIX
37#define LBSIZE 1024
38#define ESIZE 512
39#define CRSIZE 1024
40#else
41#define LBSIZE 512 /* Line length */
42#define ESIZE 128 /* Size of compiled re */
43#define CRSIZE 512
44#endif
45#define RHSSIZE 256 /* Size of rhs of substitute */
46#define NBRA 9 /* Number of re \( \) pairs */
47#define TAGSIZE 32 /* Tag length */
48#define ONMSZ 64 /* Option name size */
49#define GBSIZE 256 /* Buffer size */
50#define UXBSIZE 128 /* Unix command buffer size */
51#define VBSIZE 128 /* Partial line max size in visual */
52/* LBLKS is also defined in expreserve.c */
53#ifndef VMUNIX
54#define LBLKS 125 /* Line pointer blocks in temp file */
55#define HBLKS 1 /* struct header fits in BUFSIZ*HBLKS */
56#else
57#define LBLKS 900
58#define HBLKS 2
59#endif
60#define MAXDIRT 12 /* Max dirtcnt before sync tfile */
61#define TCBUFSIZE 1024 /* Max entry size in termcap, see
62 also termlib and termcap */
63
64/*
65 * Except on VMUNIX, these are a ridiculously small due to the
66 * lousy arglist processing implementation which fixes core
67 * proportional to them. Argv (and hence NARGS) is really unnecessary,
68 * and argument character space not needed except when
69 * arguments exist. Argument lists should be saved before the "zero"
70 * of the incore line information and could then
71 * be reasonably large.
72 */
73#ifndef VMUNIX
74#define NARGS 100 /* Maximum number of names in "next" */
75#define NCARGS LBSIZE /* Maximum arglist chars in "next" */
76#else
77#define NCARGS 5120
78#define NARGS (NCARGS/6)
79#endif
80
81/*
82 * Note: because the routine "alloca" is not portable, TUBESIZE
83 * bytes are allocated on the stack each time you go into visual
84 * and then never freed by the system. Thus if you have no terminals
85 * which are larger than 24 * 80 you may well want to make TUBESIZE
86 * smaller. TUBECOLS should stay at 160 since this defines the maximum
87 * length of opening on hardcopies and allows two lines of open on
88 * terminals like adm3's (glass tty's) where it switches to pseudo
89 * hardcopy mode when a line gets longer than 80 characters.
90 */
91#ifndef VMUNIX
92#define TUBELINES 40 /* Number of screen lines for visual */
93#define TUBECOLS 160 /* Number of screen columns for visual */
94#define TUBESIZE 3400 /* Maximum screen size for visual */
95#else
96#define TUBELINES 66
97#define TUBECOLS 160
98#define TUBESIZE 6600 /* 66 * 100 */
99#endif
100
101/*
102 * Output column (and line) are set to this value on cursor addressible
103 * terminals when we lose track of the cursor to force cursor
104 * addressing to occur.
105 */
106#define UKCOL -20 /* Prototype unknown column */
107
108/*
109 * Attention is the interrupt character (normally 0177 -- delete).
110 * Quit is the quit signal (normally FS -- control-\) and quits open/visual.
111 */
112#define ATTN (-2)
113#define QUIT ('\\' & 037)