new_curse.c

aee是一种易使用的文本编辑器。你可以不用说明书来使用它。它提供终端接口和本地的X-windows接口。它的特性包括即弹的菜单

/*
 |	new_curse.c
 |
 |	A subset of curses developed for use with ae.
 |
 |	written by Hugh Mahon
 |
 |	THIS MATERIAL IS PROVIDED "AS IS".  THERE ARE
 |	NO WARRANTIES OF ANY KIND WITH REGARD TO THIS
 |	MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE
 |	IMPLIED WARRANTIES OF MERCHANTABILITY AND
 |	FITNESS FOR A PARTICULAR PURPOSE.  Neither
 |	Hewlett-Packard nor Hugh Mahon shall be liable
 |	for errors contained herein, nor for
 |	incidental or consequential damages in
 |	connection with the furnishing, performance or
 |	use of this material.  Neither Hewlett-Packard
 |	nor Hugh Mahon assumes any responsibility for
 |	the use or reliability of this software or
 |	documentation.  This software and
 |	documentation is totally UNSUPPORTED.  There
 |	is no support contract available.  Hewlett-
 |	Packard has done NO Quality Assurance on ANY
 |	of the program or documentation.  You may find
 |	the quality of the materials inferior to
 |	supported materials.
 |
 |	This software is not a product of Hewlett-Packard, Co., or any 
 |	other company.  No support is implied or offered with this software.
 |	You've got the source, and you're on your own.
 |
 |	This software may be distributed under the terms of Larry Wall's 
 |	Artistic license, a copy of which is included in this distribution. 
 |
 |	This notice must be included with this software and any derivatives.
 |
 |	Copyright (c) 1986, 1987, 1988, 1991, 1992, 1993, 1994, 1995 Hugh Mahon
 |	All are rights reserved.
 |
 |	$Header: /home/hugh/sources/old_ae/RCS/new_curse.c,v 1.49 1998/12/21 02:25:59 hugh Exp hugh $
 |
 */

char *copyright_message[] = { "Copyright (c) 1986, 1987, 1988, 1991, 1992, 1993, 1994, 1995 Hugh Mahon",
				"All rights are reserved."};

char * new_curse_name= "@(#) new_curse.c $Revision: 1.49 $";

#include "new_curse.h"
#include <signal.h>
#include <fcntl.h>

#ifdef SYS5
#include <string.h>
#else
#include <strings.h>
#endif

#ifdef BSD_SELECT
#include <sys/types.h>
#include <sys/time.h>

#ifdef SLCT_HDR
#include <sys/select.h>  /* on AIX */
#endif /* SLCT_HDR */

#endif /* BSD_SELECT */

#ifdef HAS_STDLIB
#include <stdlib.h>
#endif

#if defined(__STDC__)
#include <stdarg.h>
#else
#include <varargs.h>
#endif

#ifdef HAS_UNISTD
#include <unistd.h>
#endif

#ifdef HAS_SYS_IOCTL
#include <sys/ioctl.h>
#endif


WINDOW *curscr;
static WINDOW *virtual_scr;
WINDOW *stdscr;
WINDOW *last_window_refreshed;

#ifdef TIOCGWINSZ
	struct winsize ws;
#endif

#define min(a, b)	(a < b ? a : b)
#define highbitset(a)	((a) & 0x80)

#ifndef CAP
#define String_Out(table, stack, place) Info_Out(table, stack, place)
#else
#define String_Out(table, stack, place) Cap_Out(table, stack, place)
#endif

#define bw__ 0	/* booleans	*/
#define am__ 1
#define xb__ 2
#define xs__ 3	/* hp glitch (standout not erased by overwrite)	*/
#define xn__ 4
#define eo__ 5
#define gn__ 6	/* generic type terminal	*/
#define hc__ 7	/* hardcopy terminal		*/
#define km__ 8
#define hs__ 9
#define in__ 10
#define da__ 11
#define db__ 12
#define mi__ 13	/* safe to move during insert mode	*/
#define ms__ 14	/* safe to move during standout mode	*/
#define os__ 15
#define es__ 16
#define xt__ 17
#define hz__ 18	/* hazeltine glitch	*/
#define ul__ 19
#define xo__ 20
#define chts__ 21
#define nxon__ 22
#define nrrmc__ 23
#define npc__ 24
#define mc5i__ 25

#define co__ 0	/* number of columns	*/	/* numbers		*/
#define it__ 1	/* spaces per tab	*/
#define li__ 2	/* number of lines	*/
#define lm__ 3
#define sg__ 4	/* magic cookie glitch	*/
#define pb__ 5
#define vt__ 6
#define ws__ 7

#define cols__ 0
#define lines__ 2
#define xmc__ 4
#define vt__ 6
#define wsl__ 7
#define nlab__ 8
#define lh__ 9
#define lw__ 10

#define bt__ 0	/* back tab		*/	/* strings	*/
#define bl__ 1	/* bell			*/
#define cr__ 2	/* carriage return	*/
#define cs__ 3	/* change scroll region	*/
#define ct__ 4	/* clear all tab stops	*/
#define cl__ 5	/* clear screen and home cursor	*/
#define ce__ 6	/* clear to end of line	*/
#define cd__ 7	/* clear to end of display	*/
#define ch__ 8	/* set cursor column	*/
#define CC__ 9	/* term, settable cmd char in 	*/
#define cm__ 10	/* screen rel cursor motion, row, column	*/
#define do__ 11	/* down one line	*/
#define ho__ 12	/* home cursor	*/
#define vi__ 13	/* make cursor invisible	*/
#define le__ 14	/* move cursor left one space	*/
#define CM__ 15	/* memory rel cursor addressing	*/
#define ve__ 16	/* make cursor appear normal	*/
#define nd__ 17	/* non-destructive space (cursor right)	*/
#define ll__ 18	/* last line, first col	*/
#define up__ 19	/* cursor up		*/
#define vs__ 20
#define dc__ 21	/* delete character	*/
#define dl__ 22	/* delete line		*/
#define ds__ 23
#define hd__ 24
#define as__ 25
#define mb__ 26
#define md__ 27	/* turn on bold		*/
#define ti__ 28
#define dm__ 29	/* turn on delete mode	*/
#define mh__ 30	/* half bright mode	*/
#define im__ 31	/* insert mode		*/
#define mk__ 32
#define mp__ 33
#define mr__ 34
#define so__ 35	/* enter standout mode	*/
#define us__ 36
#define ec__ 37
#define ae__ 38
#define me__ 39
#define te__ 40
#define ed__ 41
#define ei__ 42	/* exit insert mode	*/
#define se__ 43	/* exit standout mode	*/
#define ue__ 44
#define vb__ 45
#define ff__ 46
#define fs__ 47
#define i1__ 48
#define i2__ 49
#define i3__ 50
#define if__ 51
#define ic__ 52
#define al__ 53
#define ip__ 54
#define kb__ 55		/* backspace key	*/
#define ka__ 56
#define kC__ 57
#define kt__ 58
#define kD__ 59
#define kL__ 60
#define kd__ 61
#define kM__ 62
#define kE__ 63
#define kS__ 64
#define k0__ 65
#define k1__ 66
#define kf10__ 67
#define k2__ 68
#define k3__ 69
#define k4__ 70
#define k5__ 71
#define k6__ 72
#define k7__ 73
#define k8__ 74
#define k9__ 75
#define kh__ 76
#define kI__ 77
#define kA__ 78
#define kl__ 79
#define kH__ 80
#define kN__ 81
#define kP__ 82
#define kr__ 83
#define kF__ 84
#define kR__ 85
#define kT__ 86
#define ku__ 87	/* key up	*/
#define ke__ 88
#define ks__ 89
#define l0__ 90
#define l1__ 91
#define la__ 92
#define l2__ 93
#define l3__ 94
#define l4__ 95
#define l5__ 96
#define l6__ 97
#define l7__ 98
#define l8__ 99
#define l9__ 100
#define mo__ 101
#define mm__ 102
#define nw__ 103
#define pc__ 104
#define DC__ 105
#define DL__ 106
#define DO__ 107
#define IC__ 118
#define SF__ 109
#define AL__ 110
#define LE__ 111
#define RI__ 112
#define SR__ 113
#define UP__ 114
#define pk__ 115
#define pl__ 116
#define px__ 117
#define ps__ 118
#define pf__ 119
#define po__ 120
#define rp__ 121
#define r1__ 122
#define r2__ 123
#define r3__ 124
#define rf__ 125
#define rc__ 126
#define cv__ 127
#define sc__ 128
#define sf__ 129
#define sr__ 130
#define sa__ 131	/* sgr	*/
#define st__ 132
#define wi__ 133
#define ta__ 134
#define ts__ 135
#define uc__ 136
#define hu__ 137
#define iP__ 138
#define K1__ 139
#define K2__ 140
#define K3__ 141
#define K4__ 142
#define K5__ 143
#define pO__ 144
#define ml__ 145
#define mu__ 146
#define rmp__ 145
#define acsc__ 146
#define pln__ 147
#define kcbt__ 148
#define smxon__ 149
#define rmxon__ 150
#define smam__ 151
#define rmam__ 152
#define xonc__ 153
#define xoffc__ 154
#define enacs__ 155
#define smln__ 156
#define rmln__ 157
#define kbeg__ 158
#define kcan__ 159
#define kclo__ 160
#define kcmd__ 161
#define kcpy__ 162
#define kcrt__ 163
#define kend__ 164
#define kent__ 165
#define kext__ 166
#define kfnd__ 167
#define khlp__ 168
#define kmrk__ 169
#define kmsg__ 170
#define kmov__ 171
#define knxt__ 172
#define kopn__ 173
#define kopt__ 174
#define kprv__ 175
#define kprt__ 176
#define krdo__ 177
#define kref__ 178
#define krfr__ 179
#define krpl__ 180
#define krst__ 181
#define kres__ 182
#define ksav__ 183
#define kspd__ 184
#define kund__ 185
#define kBEG__ 186
#define kCAN__ 187
#define kCMD__ 188
#define kCPY__ 189
#define kCRT__ 190
#define kDC__ 191
#define kDL__ 192
#define kslt__ 193
#define kEND__ 194
#define kEOL__ 195
#define kEXT__ 196
#define kFND__ 197
#define kHLP__ 198
#define kHOM__ 199
#define kIC__ 200
#define kLFT__ 201
#define kMSG__ 202
#define kMOV__ 203
#define kNXT__ 204
#define kOPT__ 205
#define kPRV__ 206
#define kPRT__ 207
#define kRDO__ 208
#define kRPL__ 209
#define kRIT__ 210
#define kRES__ 211
#define kSAV__ 212
#define kSPD__ 213
#define kUND__ 214
#define rfi__ 215
#define kf11__ 216
#define kf12__ 217
#define kf13__ 218
#define kf14__ 219
#define kf15__ 220
#define kf16__ 221
#define kf17__ 222
#define kf18__ 223
#define kf19__ 224
#define kf20__ 225
#define kf21__ 226
#define kf22__ 227
#define kf23__ 228
#define kf24__ 229
#define kf25__ 230
#define kf26__ 231
#define kf27__ 232
#define kf28__ 233
#define kf29__ 234
#define kf30__ 235
#define kf31__ 236
#define kf32__ 237
#define kf33__ 238
#define kf34__ 239
#define kf35__ 240
#define kf36__ 241
#define kf37__ 242
#define kf38__ 243
#define kf39__ 244
#define kf40__ 245
#define kf41__ 246
#define kf42__ 247
#define kf43__ 248
#define kf44__ 249
#define kf45__ 250
#define kf46__ 251
#define kf47__ 252
#define kf48__ 253
#define kf49__ 254
#define kf50__ 255
#define kf51__ 256
#define kf52__ 257
#define kf53__ 258
#define kf54__ 259
#define kf55__ 260
#define kf56__ 261
#define kf57__ 262
#define kf58__ 263
#define kf59__ 264
#define kf60__ 265
#define kf61__ 266
#define kf62__ 267
#define kf63__ 268
#define el1__ 269
#define mgc__ 270
#define smgl__ 271
#define smgr__ 272

#ifdef CAP
char *Boolean_names[] = {
"bw", "am", "xb", "xs", "xn", "eo", "gn", "hc", "km", "hs", "in", "da", "db", 
"mi", "ms", "os", "es", "xt", "hz", "ul", "xo", "HC", "nx", "NR", "NP", "5i"
}; 

char *Number_names[] = { 
"co#", "it#", "li#", "lm#", "sg#", "pb#", "vt#", "ws#", "Nl#", "lh#", "lw#"
};

char *String_names[] = {
"bt=", "bl=", "cr=", "cs=", "ct=", "cl=", "ce=", "cd=", "ch=", "CC=", "cm=", 
"do=", "ho=", "vi=", "le=", "CM=", "ve=", "nd=", "ll=", "up=", "vs=", "dc=", 
"dl=", "ds=", "hd=", "as=", "mb=", "md=", "ti=", "dm=", "mh=", "im=", "mk=", 
"mp=", "mr=", "so=", "us=", "ec=", "ae=", "me=", "te=", "ed=", "ei=", "se=", 
"ue=", "vb=", "ff=", "fs=", "i1=", "i2=", "i3=", "if=", "ic=", "al=", "ip=", 
"kb=", "ka=", "kC=", "kt=", "kD=", "kL=", "kd=", "kM=", "kE=", "kS=", "k0=", 
"k1=", "k;=", "k2=", "k3=", "k4=", "k5=", "k6=", "k7=", "k8=", "k9=", "kh=", 
"kI=", "kA=", "kl=", "kH=", "kN=", "kP=", "kr=", "kF=", "kR=", "kT=", "ku=", 
"ke=", "ks=", "l0=", "l1=", "la=", "l2=", "l3=", "l4=", "l5=", "l6=", "l7=", 
"l8=", "l9=", "mo=", "mm=", "nw=", "pc=", "DC=", "DL=", "DO=", "IC=", "SF=", 
"AL=", "LE=", "RI=", "SR=", "UP=", "pk=", "pl=", "px=", "ps=", "pf=", "po=", 
"rp=", "r1=", "r2=", "r3=", "rf=", "rc=", "cv=", "sc=", "sf=", "sr=", "sa=", 
"st=", "wi=", "ta=", "ts=", "uc=", "hu=", "iP=", "K1=", "K3=", "K2=", "K4=", 
"K5=", "pO=", "rP=", "ac=", "pn=", "kB=", "SX=", "RX=", "SA=", "RA=", "XN=", 
"XF=", "eA=", "LO=", "LF=", "@1=", "@2=", "@3=", "@4=", "@5=", "@6=", "@7=", 
"@8=", "@9=", "@0=", "%1=", "%2=", "%3=", "%4=", "%5=", "%6=", "%7=", "%8=", 
"%9=", "%0=", "&1=", "&2=", "&3=", "&4=", "&5=", "&6=", "&7=", "&8=", "&9=", 
"&0=", "*1=", "*2=", "*3=", "*4=", "*5=", "*6=", "*7=", "*8=", "*9=", "*0=", 
"#1=", "#2=", "#3=", "#4=", "%a=", "%b=", "%c=", "%d=", "%e=", "%f=", "%g=", 
"%h=", "%i=", "%j=", "!1=", "!2=", "!3=", "RF=", "F1=", "F2=", "F3=", "F4=", 
"F5=", "F6=", "F7=", "F8=", "F9=", "FA=", "FB=", "FC=", "FD=", "FE=", "FF=", 
"FG=", "FH=", "FI=", "FJ=", "FK=", "FL=", "FM=", "FN=", "FO=", "FP=", "FQ=", 
"FR=", "FS=", "FT=", "FU=", "FV=", "FW=", "FX=", "FY=", "FZ=", "Fa=", "Fb=", 
"Fc=", "Fd=", "Fe=", "Ff=", "Fg=", "Fh=", "Fi=", "Fj=", "Fk=", "Fl=", "Fm=", 
"Fn=", "Fo=", "Fp=", "Fq=", "Fr=", "cb=", "MC=", "ML=", "MR="
};
#endif

char *new_curse = "October 1987";

char in_buff[100];	/* buffer for ungetch			*/
int bufp;		/* next free position in in_buff	*/

char *TERMINAL_TYPE = NULL; /* terminal type to be gotten from environment	*/
int CFOUND = FALSE;
int Data_Line_len = 0;
int Max_Key_len;	/* max length of a sequence sent by a key	*/
char *Data_Line = NULL;
char *TERM_PATH = NULL;
char *TERM_data_ptr = NULL;
char *Term_File_name = NULL;	/* name of file containing terminal description	*/
FILE *TFP;		/* file pointer to file with terminal des.	*/
int Fildes;		/* file descriptor for terminfo file		*/
int STAND = FALSE;	/* is standout mode activated?			*/
int TERM_INFO = FALSE;	/* is terminfo being used (TRUE), or termcap (FALSE) */
int Time_Out;	/* set when time elapsed while trying to read function key */
int Curr_x;		/* current x position on screen			*/
int Curr_y;		/* current y position on the screen		*/
int LINES;
int COLS;
int Move_It;		/* flag to move cursor if magic cookie glitch	*/
int initialized = FALSE;	/* tells whether new_curse is initialized	*/
float speed;
float chars_per_millisecond;
int Repaint_screen;	/* if an operation to change screen impossible, repaint screen	*/
int Intr;		/* storeage for interrupt character		*/
int Parity;		/* 0 = no parity, 1 = odd parity, 2 = even parity */
int Noblock;		/* for BSD systems				*/
int Num_bits;	/* number of bits per character	*/
int Flip_Bytes;	/* some systems have byte order reversed	*/
int interrupt_flag = FALSE;	/* set true if SIGWINCH received	*/

#ifndef CAP
char *Strings;
#endif

struct KEYS {
	int length;	/* length of string sent by key			*/
	char *string;	/* string sent by key				*/
	int value;	/* CURSES value of key (9-bit)			*/
	};

struct KEY_STACK {
	struct KEYS *element;
	struct KEY_STACK *next;
	};

struct KEY_STACK *KEY_TOS = NULL;
struct KEY_STACK *KEY_POINT;

/*
 |
 |	Not all systems have good terminal information, so we will define 
 |	keyboard information here for the most widely used terminal type, 
 |	the VT100.
 |
 */

struct KEYS vt100[] = 
	{
		{ 3, "\033[A", 0403 },	/* key up 	*/
		{ 3, "\033[C", 0405 },	/* key right	*/
		{ 3, "\033[D", 0404 },	/* key left	*/

		{ 4, "\033[6~", 0522 },	/* key next page	*/
		{ 4, "\033[5~", 0523 },	/* key prev page	*/
		{ 3, "\033[[", 0550 },	/* key end	*/
		{ 3, "\033[@", 0406 },	/* key home	*/
		{ 4, "\033[2~", 0513 },	/* key insert char	*/

		{ 3, "\033[y", 0410 },	/* key F0	*/
		{ 3, "\033[P", 0411 },	/* key F1	*/
		{ 3, "\033[Q", 0412 },	/* key F2	*/
		{ 3, "\033[R", 0413 },	/* key F3	*/
		{ 3, "\033[S", 0414 },	/* key F4	*/
		{ 3, "\033[t", 0415 },	/* key F5	*/
		{ 3, "\033[u", 0416 },	/* key F6	*/
		{ 3, "\033[v", 0417 },	/* key F7	*/
		{ 3, "\033[l", 0420 },	/* key F8	*/
		{ 3, "\033[w", 0421 },	/* key F9	*/
		{ 3, "\033[x", 0422 },	/* key F10	*/

		{ 5, "\033[10~", 0410 },	/* key F0	*/
		{ 5, "\033[11~", 0411 },	/* key F1	*/
		{ 5, "\033[12~", 0412 },	/* key F2	*/
		{ 5, "\033[13~", 0413 },	/* key F3	*/
		{ 5, "\033[14~", 0414 },	/* key F4	*/
		{ 5, "\033[15~", 0415 },	/* key F5	*/
		{ 5, "\033[17~", 0416 },	/* key F6	*/
		{ 5, "\033[18~", 0417 },	/* key F7	*/
		{ 5, "\033[19~", 0420 },	/* key F8	*/
		{ 5, "\033[20~", 0421 },	/* key F9	*/
		{ 5, "\033[21~", 0422 },	/* key F10	*/
		{ 5, "\033[23~", 0423 },	/* key F11	*/
		{ 5, "\033[24~", 0424 },	/* key F12	*/
		{ 3, "\033[q", 0534 },	/* ka1 upper-left of keypad	*/
		{ 3, "\033[s", 0535 },	/* ka3 upper-right of keypad	*/
		{ 3, "\033[r", 0536 },	/* kb2 center of keypad	*/
 		{ 3, "\033[p", 0537 },	/* kc1 lower-left of keypad	*/
		{ 3, "\033[n", 0540 },	/* kc3 lower-right of keypad	*/

		/*
		 |	The following are the same keys as above, but with 
		 |	a different character following the escape char.
		 */

		{ 3, "\033OA", 0403 },	/* key up 	*/
		{ 3, "\033OC", 0405 },	/* key right	*/