1 /*
2 | new_curse.c
3 |
4 | A subset of curses developed for use with ae.
5 |
6 | written by Hugh Mahon
7 |
8 | Copyright (c) 1986, 1987, 1988, 1991, 1992, 1993, 1994, 1995, 2009 Hugh Mahon
9 | All rights reserved.
10 |
11 | Redistribution and use in source and binary forms, with or without
12 | modification, are permitted provided that the following conditions
13 | are met:
14 |
15 | * Redistributions of source code must retain the above copyright
16 | notice, this list of conditions and the following disclaimer.
17 | * Redistributions in binary form must reproduce the above
18 | copyright notice, this list of conditions and the following
19 | disclaimer in the documentation and/or other materials provided
20 | with the distribution.
21 |
22 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
25 | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
26 | COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
27 | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
28 | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
30 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 | ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 | POSSIBILITY OF SUCH DAMAGE.
34 |
35 |
36 | All are rights reserved.
37 |
38 | $Header: /home/hugh/sources/old_ae/RCS/new_curse.c,v 1.54 2002/09/21 00:47:14 hugh Exp $
39 |
40 */
41
42 char *copyright_message[] = { "Copyright (c) 1986, 1987, 1988, 1991, 1992, 1993, 1994, 1995, 2009 Hugh Mahon",
43 "All rights are reserved."};
44
45 char * new_curse_name= "@(#) new_curse.c $Revision: 1.54 $";
46
47 #include "new_curse.h"
48 #include <signal.h>
49 #include <fcntl.h>
50
51 #ifdef SYS5
52 #include <string.h>
53 #else
54 #include <strings.h>
55 #endif
56
57 #ifdef BSD_SELECT
58 #include <sys/types.h>
59 #include <sys/time.h>
60
61 #ifdef SLCT_HDR
62 #include <sys/select.h> /* on AIX */
63 #endif /* SLCT_HDR */
64
65 #endif /* BSD_SELECT */
66
67 #ifdef HAS_STDLIB
68 #include <stdlib.h>
69 #endif
70
71 #if defined(__STDC__)
72 #include <stdarg.h>
73 #else
74 #include <varargs.h>
75 #endif
76
77 #ifdef HAS_UNISTD
78 #include <unistd.h>
79 #endif
80
81 #ifdef HAS_SYS_IOCTL
82 #include <sys/ioctl.h>
83 #endif
84
85
86 WINDOW *curscr;
87 static WINDOW *virtual_scr;
88 WINDOW *stdscr;
89 WINDOW *last_window_refreshed;
90
91 #ifdef TIOCGWINSZ
92 struct winsize ws;
93 #endif
94
95 #define min(a, b) (a < b ? a : b)
96 #define highbitset(a) ((a) & 0x80)
97
98 #ifndef CAP
99 #define String_Out(table, stack, place) Info_Out(table, stack, place)
100 #else
101 #define String_Out(table, stack, place) Cap_Out(table, stack, place)
102 #endif
103
104 #define bw__ 0 /* booleans */
105 #define am__ 1
106 #define xb__ 2
107 #define xs__ 3 /* hp glitch (standout not erased by overwrite) */
108 #define xn__ 4
109 #define eo__ 5
110 #define gn__ 6 /* generic type terminal */
111 #define hc__ 7 /* hardcopy terminal */
112 #define km__ 8
113 #define hs__ 9
114 #define in__ 10
115 #define da__ 11
116 #define db__ 12
117 #define mi__ 13 /* safe to move during insert mode */
118 #define ms__ 14 /* safe to move during standout mode */
119 #define os__ 15
120 #define es__ 16
121 #define xt__ 17
122 #define hz__ 18 /* hazeltine glitch */
123 #define ul__ 19
124 #define xo__ 20
125 #define chts__ 21
126 #define nxon__ 22
127 #define nrrmc__ 23
128 #define npc__ 24
129 #define mc5i__ 25
130
131 #define co__ 0 /* number of columns */ /* numbers */
132 #define it__ 1 /* spaces per tab */
133 #define li__ 2 /* number of lines */
134 #define lm__ 3
135 #define sg__ 4 /* magic cookie glitch */
136 #define pb__ 5
137 #define vt__ 6
138 #define ws__ 7
139
140 #define cols__ 0
141 #define lines__ 2
142 #define xmc__ 4
143 #define vt__ 6
144 #define wsl__ 7
145 #define nlab__ 8
146 #define lh__ 9
147 #define lw__ 10
148
149 #define bt__ 0 /* back tab */ /* strings */
150 #define bl__ 1 /* bell */
151 #define cr__ 2 /* carriage return */
152 #define cs__ 3 /* change scroll region */
153 #define ct__ 4 /* clear all tab stops */
154 #define cl__ 5 /* clear screen and home cursor */
155 #define ce__ 6 /* clear to end of line */
156 #define cd__ 7 /* clear to end of display */
157 #define ch__ 8 /* set cursor column */
158 #define CC__ 9 /* term, settable cmd char in */
159 #define cm__ 10 /* screen rel cursor motion, row, column */
160 #define do__ 11 /* down one line */
161 #define ho__ 12 /* home cursor */
162 #define vi__ 13 /* make cursor invisible */
163 #define le__ 14 /* move cursor left one space */
164 #define CM__ 15 /* memory rel cursor addressing */
165 #define ve__ 16 /* make cursor appear normal */
166 #define nd__ 17 /* non-destructive space (cursor right) */
167 #define ll__ 18 /* last line, first col */
168 #define up__ 19 /* cursor up */
169 #define vs__ 20
170 #define dc__ 21 /* delete character */
171 #define dl__ 22 /* delete line */
172 #define ds__ 23
173 #define hd__ 24
174 #define as__ 25
175 #define mb__ 26
176 #define md__ 27 /* turn on bold */
177 #define ti__ 28
178 #define dm__ 29 /* turn on delete mode */
179 #define mh__ 30 /* half bright mode */
180 #define im__ 31 /* insert mode */
181 #define mk__ 32
182 #define mp__ 33
183 #define mr__ 34
184 #define so__ 35 /* enter standout mode */
185 #define us__ 36
186 #define ec__ 37
187 #define ae__ 38
188 #define me__ 39
189 #define te__ 40
190 #define ed__ 41
191 #define ei__ 42 /* exit insert mode */
192 #define se__ 43 /* exit standout mode */
193 #define ue__ 44
194 #define vb__ 45
195 #define ff__ 46
196 #define fs__ 47
197 #define i1__ 48
198 #define i2__ 49
199 #define i3__ 50
200 #define if__ 51
201 #define ic__ 52
202 #define al__ 53
203 #define ip__ 54
204 #define kb__ 55 /* backspace key */
205 #define ka__ 56
206 #define kC__ 57
207 #define kt__ 58
208 #define kD__ 59
209 #define kL__ 60
210 #define kd__ 61
211 #define kM__ 62
212 #define kE__ 63
213 #define kS__ 64
214 #define k0__ 65
215 #define k1__ 66
216 #define kf10__ 67
217 #define k2__ 68
218 #define k3__ 69
219 #define k4__ 70
220 #define k5__ 71
221 #define k6__ 72
222 #define k7__ 73
223 #define k8__ 74
224 #define k9__ 75
225 #define kh__ 76
226 #define kI__ 77
227 #define kA__ 78
228 #define kl__ 79
229 #define kH__ 80
230 #define kN__ 81
231 #define kP__ 82
232 #define kr__ 83
233 #define kF__ 84
234 #define kR__ 85
235 #define kT__ 86
236 #define ku__ 87 /* key up */
237 #define ke__ 88
238 #define ks__ 89
239 #define l0__ 90
240 #define l1__ 91
241 #define la__ 92
242 #define l2__ 93
243 #define l3__ 94
244 #define l4__ 95
245 #define l5__ 96
246 #define l6__ 97
247 #define l7__ 98
248 #define l8__ 99
249 #define l9__ 100
250 #define mo__ 101
251 #define mm__ 102
252 #define nw__ 103
253 #define pc__ 104
254 #define DC__ 105
255 #define DL__ 106
256 #define DO__ 107
257 #define IC__ 118
258 #define SF__ 109
259 #define AL__ 110
260 #define LE__ 111
261 #define RI__ 112
262 #define SR__ 113
263 #define UP__ 114
264 #define pk__ 115
265 #define pl__ 116
266 #define px__ 117
267 #define ps__ 118
268 #define pf__ 119
269 #define po__ 120
270 #define rp__ 121
271 #define r1__ 122
272 #define r2__ 123
273 #define r3__ 124
274 #define rf__ 125
275 #define rc__ 126
276 #define cv__ 127
277 #define sc__ 128
278 #define sf__ 129
279 #define sr__ 130
280 #define sa__ 131 /* sgr */
281 #define st__ 132
282 #define wi__ 133
283 #define ta__ 134
284 #define ts__ 135
285 #define uc__ 136
286 #define hu__ 137
287 #define iP__ 138
288 #define K1__ 139
289 #define K2__ 140
290 #define K3__ 141
291 #define K4__ 142
292 #define K5__ 143
293 #define pO__ 144
294 #define ml__ 145
295 #define mu__ 146
296 #define rmp__ 145
297 #define acsc__ 146
298 #define pln__ 147
299 #define kcbt__ 148
300 #define smxon__ 149
301 #define rmxon__ 150
302 #define smam__ 151
303 #define rmam__ 152
304 #define xonc__ 153
305 #define xoffc__ 154
306 #define enacs__ 155
307 #define smln__ 156
308 #define rmln__ 157
309 #define kbeg__ 158
310 #define kcan__ 159
311 #define kclo__ 160
312 #define kcmd__ 161
313 #define kcpy__ 162
314 #define kcrt__ 163
315 #define kend__ 164
316 #define kent__ 165
317 #define kext__ 166
318 #define kfnd__ 167
319 #define khlp__ 168
320 #define kmrk__ 169
321 #define kmsg__ 170
322 #define kmov__ 171
323 #define knxt__ 172
324 #define kopn__ 173
325 #define kopt__ 174
326 #define kprv__ 175
327 #define kprt__ 176
328 #define krdo__ 177
329 #define kref__ 178
330 #define krfr__ 179
331 #define krpl__ 180
332 #define krst__ 181
333 #define kres__ 182
334 #define ksav__ 183
335 #define kspd__ 184
336 #define kund__ 185
337 #define kBEG__ 186
338 #define kCAN__ 187
339 #define kCMD__ 188
340 #define kCPY__ 189
341 #define kCRT__ 190
342 #define kDC__ 191
343 #define kDL__ 192
344 #define kslt__ 193
345 #define kEND__ 194
346 #define kEOL__ 195
347 #define kEXT__ 196
348 #define kFND__ 197
349 #define kHLP__ 198
350 #define kHOM__ 199
351 #define kIC__ 200
352 #define kLFT__ 201
353 #define kMSG__ 202
354 #define kMOV__ 203
355 #define kNXT__ 204
356 #define kOPT__ 205
357 #define kPRV__ 206
358 #define kPRT__ 207
359 #define kRDO__ 208
360 #define kRPL__ 209
361 #define kRIT__ 210
362 #define kRES__ 211
363 #define kSAV__ 212
364 #define kSPD__ 213
365 #define kUND__ 214
366 #define rfi__ 215
367 #define kf11__ 216
368 #define kf12__ 217
369 #define kf13__ 218
370 #define kf14__ 219
371 #define kf15__ 220
372 #define kf16__ 221
373 #define kf17__ 222
374 #define kf18__ 223
375 #define kf19__ 224
376 #define kf20__ 225
377 #define kf21__ 226
378 #define kf22__ 227
379 #define kf23__ 228
380 #define kf24__ 229
381 #define kf25__ 230
382 #define kf26__ 231
383 #define kf27__ 232
384 #define kf28__ 233
385 #define kf29__ 234
386 #define kf30__ 235
387 #define kf31__ 236
388 #define kf32__ 237
389 #define kf33__ 238
390 #define kf34__ 239
391 #define kf35__ 240
392 #define kf36__ 241
393 #define kf37__ 242
394 #define kf38__ 243
395 #define kf39__ 244
396 #define kf40__ 245
397 #define kf41__ 246
398 #define kf42__ 247
399 #define kf43__ 248
400 #define kf44__ 249
401 #define kf45__ 250
402 #define kf46__ 251
403 #define kf47__ 252
404 #define kf48__ 253
405 #define kf49__ 254
406 #define kf50__ 255
407 #define kf51__ 256
408 #define kf52__ 257
409 #define kf53__ 258
410 #define kf54__ 259
411 #define kf55__ 260
412 #define kf56__ 261
413 #define kf57__ 262
414 #define kf58__ 263
415 #define kf59__ 264
416 #define kf60__ 265
417 #define kf61__ 266
418 #define kf62__ 267
419 #define kf63__ 268
420 #define el1__ 269
421 #define mgc__ 270
422 #define smgl__ 271
423 #define smgr__ 272
424
425 #ifdef CAP
426 char *Boolean_names[] = {
427 "bw", "am", "xb", "xs", "xn", "eo", "gn", "hc", "km", "hs", "in", "da", "db",
428 "mi", "ms", "os", "es", "xt", "hz", "ul", "xo", "HC", "nx", "NR", "NP", "5i"
429 };
430
431 char *Number_names[] = {
432 "co#", "it#", "li#", "lm#", "sg#", "pb#", "vt#", "ws#", "Nl#", "lh#", "lw#"
433 };
434
435 char *String_names[] = {
436 "bt=", "bl=", "cr=", "cs=", "ct=", "cl=", "ce=", "cd=", "ch=", "CC=", "cm=",
437 "do=", "ho=", "vi=", "le=", "CM=", "ve=", "nd=", "ll=", "up=", "vs=", "dc=",
438 "dl=", "ds=", "hd=", "as=", "mb=", "md=", "ti=", "dm=", "mh=", "im=", "mk=",
439 "mp=", "mr=", "so=", "us=", "ec=", "ae=", "me=", "te=", "ed=", "ei=", "se=",
440 "ue=", "vb=", "ff=", "fs=", "i1=", "i2=", "i3=", "if=", "ic=", "al=", "ip=",
441 "kb=", "ka=", "kC=", "kt=", "kD=", "kL=", "kd=", "kM=", "kE=", "kS=", "k0=",
442 "k1=", "k;=", "k2=", "k3=", "k4=", "k5=", "k6=", "k7=", "k8=", "k9=", "kh=",
443 "kI=", "kA=", "kl=", "kH=", "kN=", "kP=", "kr=", "kF=", "kR=", "kT=", "ku=",
444 "ke=", "ks=", "l0=", "l1=", "la=", "l2=", "l3=", "l4=", "l5=", "l6=", "l7=",
445 "l8=", "l9=", "mo=", "mm=", "nw=", "pc=", "DC=", "DL=", "DO=", "IC=", "SF=",
446 "AL=", "LE=", "RI=", "SR=", "UP=", "pk=", "pl=", "px=", "ps=", "pf=", "po=",
447 "rp=", "r1=", "r2=", "r3=", "rf=", "rc=", "cv=", "sc=", "sf=", "sr=", "sa=",
448 "st=", "wi=", "ta=", "ts=", "uc=", "hu=", "iP=", "K1=", "K3=", "K2=", "K4=",
449 "K5=", "pO=", "rP=", "ac=", "pn=", "kB=", "SX=", "RX=", "SA=", "RA=", "XN=",
450 "XF=", "eA=", "LO=", "LF=", "@1=", "@2=", "@3=", "@4=", "@5=", "@6=", "@7=",
451 "@8=", "@9=", "@0=", "%1=", "%2=", "%3=", "%4=", "%5=", "%6=", "%7=", "%8=",
452 "%9=", "%0=", "&1=", "&2=", "&3=", "&4=", "&5=", "&6=", "&7=", "&8=", "&9=",
453 "&0=", "*1=", "*2=", "*3=", "*4=", "*5=", "*6=", "*7=", "*8=", "*9=", "*0=",
454 "#1=", "#2=", "#3=", "#4=", "%a=", "%b=", "%c=", "%d=", "%e=", "%f=", "%g=",
455 "%h=", "%i=", "%j=", "!1=", "!2=", "!3=", "RF=", "F1=", "F2=", "F3=", "F4=",
456 "F5=", "F6=", "F7=", "F8=", "F9=", "FA=", "FB=", "FC=", "FD=", "FE=", "FF=",
457 "FG=", "FH=", "FI=", "FJ=", "FK=", "FL=", "FM=", "FN=", "FO=", "FP=", "FQ=",
458 "FR=", "FS=", "FT=", "FU=", "FV=", "FW=", "FX=", "FY=", "FZ=", "Fa=", "Fb=",
459 "Fc=", "Fd=", "Fe=", "Ff=", "Fg=", "Fh=", "Fi=", "Fj=", "Fk=", "Fl=", "Fm=",
460 "Fn=", "Fo=", "Fp=", "Fq=", "Fr=", "cb=", "MC=", "ML=", "MR="
461 };
462 #endif
463
464 char *new_curse = "October 1987";
465
466 char in_buff[100]; /* buffer for ungetch */
467 int bufp; /* next free position in in_buff */
468
469 char *TERMINAL_TYPE = NULL; /* terminal type to be gotten from environment */
470 int CFOUND = FALSE;
471 int Data_Line_len = 0;
472 int Max_Key_len; /* max length of a sequence sent by a key */
473 char *Data_Line = NULL;
474 char *TERM_PATH = NULL;
475 char *TERM_data_ptr = NULL;
476 char *Term_File_name = NULL; /* name of file containing terminal description */
477 FILE *TFP; /* file pointer to file with terminal des. */
478 int Fildes; /* file descriptor for terminfo file */
479 int STAND = FALSE; /* is standout mode activated? */
480 int TERM_INFO = FALSE; /* is terminfo being used (TRUE), or termcap (FALSE) */
481 int Time_Out; /* set when time elapsed while trying to read function key */
482 int Curr_x; /* current x position on screen */
483 int Curr_y; /* current y position on the screen */
484 int LINES;
485 int COLS;
486 int Move_It; /* flag to move cursor if magic cookie glitch */
487 int initialized = FALSE; /* tells whether new_curse is initialized */
488 float speed;
489 float chars_per_millisecond;
490 int Repaint_screen; /* if an operation to change screen impossible, repaint screen */
491 int Intr; /* storeage for interrupt character */
492 int Parity; /* 0 = no parity, 1 = odd parity, 2 = even parity */
493 int Noblock; /* for BSD systems */
494 int Num_bits; /* number of bits per character */
495 int Flip_Bytes; /* some systems have byte order reversed */
496 int interrupt_flag = FALSE; /* set true if SIGWINCH received */
497
498 #ifndef CAP
499 char *Strings;
500 #endif
501
502 #if !defined(TERMCAP)
503 #define TERMCAP "/etc/termcap"
504 #endif
505
506 struct KEYS {
507 int length; /* length of string sent by key */
508 char *string; /* string sent by key */
509 int value; /* CURSES value of key (9-bit) */
510 };
511
512 struct KEY_STACK {
513 struct KEYS *element;
514 struct KEY_STACK *next;
515 };
516
517 struct KEY_STACK *KEY_TOS = NULL;
518 struct KEY_STACK *KEY_POINT;
519
520 /*
521 |
522 | Not all systems have good terminal information, so we will define
523 | keyboard information here for the most widely used terminal type,
524 | the VT100.
525 |
526 */
527
528 struct KEYS vt100[] =
529 {
530 { 3, "\033[A", 0403 }, /* key up */
531 { 3, "\033[C", 0405 }, /* key right */
532 { 3, "\033[D", 0404 }, /* key left */
533
534 { 4, "\033[6~", 0522 }, /* key next page */
535 { 4, "\033[5~", 0523 }, /* key prev page */
536 { 3, "\033[[", 0550 }, /* key end */
537 { 3, "\033[@", 0406 }, /* key home */
538 { 4, "\033[2~", 0513 }, /* key insert char */
539
540 { 3, "\033[y", 0410 }, /* key F0 */
541 { 3, "\033[P", 0411 }, /* key F1 */
542 { 3, "\033[Q", 0412 }, /* key F2 */
543 { 3, "\033[R", 0413 }, /* key F3 */
544 { 3, "\033[S", 0414 }, /* key F4 */
545 { 3, "\033[t", 0415 }, /* key F5 */
546 { 3, "\033[u", 0416 }, /* key F6 */
547 { 3, "\033[v", 0417 }, /* key F7 */
548 { 3, "\033[l", 0420 }, /* key F8 */
549 { 3, "\033[w", 0421 }, /* key F9 */
550 { 3, "\033[x", 0422 }, /* key F10 */
551
552 { 5, "\033[10~", 0410 }, /* key F0 */
553 { 5, "\033[11~", 0411 }, /* key F1 */
554 { 5, "\033[12~", 0412 }, /* key F2 */
555 { 5, "\033[13~", 0413 }, /* key F3 */
556 { 5, "\033[14~", 0414 }, /* key F4 */
557 { 5, "\033[15~", 0415 }, /* key F5 */
558 { 5, "\033[17~", 0416 }, /* key F6 */
559 { 5, "\033[18~", 0417 }, /* key F7 */
560 { 5, "\033[19~", 0420 }, /* key F8 */
561 { 5, "\033[20~", 0421 }, /* key F9 */
562 { 5, "\033[21~", 0422 }, /* key F10 */
563 { 5, "\033[23~", 0423 }, /* key F11 */
564 { 5, "\033[24~", 0424 }, /* key F12 */
565 { 3, "\033[q", 0534 }, /* ka1 upper-left of keypad */
566 { 3, "\033[s", 0535 }, /* ka3 upper-right of keypad */
567 { 3, "\033[r", 0536 }, /* kb2 center of keypad */
568 { 3, "\033[p", 0537 }, /* kc1 lower-left of keypad */
569 { 3, "\033[n", 0540 }, /* kc3 lower-right of keypad */
570
571 /*
572 | The following are the same keys as above, but with
573 | a different character following the escape char.
574 */
575
576 { 3, "\033OA", 0403 }, /* key up */
577 { 3, "\033OC", 0405 }, /* key right */
578 { 3, "\033OD", 0404 }, /* key left */
579 { 3, "\033OB", 0402 }, /* key down */
580 { 4, "\033O6~", 0522 }, /* key next page */
581 { 4, "\033O5~", 0523 }, /* key prev page */
582 { 3, "\033O[", 0550 }, /* key end */
583 { 3, "\033O@", 0406 }, /* key home */
584 { 4, "\033O2~", 0513 }, /* key insert char */
585
586 { 3, "\033Oy", 0410 }, /* key F0 */
587 { 3, "\033OP", 0411 }, /* key F1 */
588 { 3, "\033OQ", 0412 }, /* key F2 */
589 { 3, "\033OR", 0413 }, /* key F3 */
590 { 3, "\033OS", 0414 }, /* key F4 */
591 { 3, "\033Ot", 0415 }, /* key F5 */
592 { 3, "\033Ou", 0416 }, /* key F6 */
593 { 3, "\033Ov", 0417 }, /* key F7 */
594 { 3, "\033Ol", 0420 }, /* key F8 */
595 { 3, "\033Ow", 0421 }, /* key F9 */
596 { 3, "\033Ox", 0422 }, /* key F10 */
597
598 { 5, "\033O10~", 0410 }, /* key F0 */
599 { 5, "\033O11~", 0411 }, /* key F1 */
600 { 5, "\033O12~", 0412 }, /* key F2 */
601 { 5, "\033O13~", 0413 }, /* key F3 */
602 { 5, "\033O14~", 0414 }, /* key F4 */
603 { 5, "\033O15~", 0415 }, /* key F5 */
604 { 5, "\033O17~", 0416 }, /* key F6 */
605 { 5, "\033O18~", 0417 }, /* key F7 */
606 { 5, "\033O19~", 0420 }, /* key F8 */
607 { 5, "\033O20~", 0421 }, /* key F9 */
608 { 5, "\033O21~", 0422 }, /* key F10 */
609 { 5, "\033O23~", 0423 }, /* key F11 */
610 { 5, "\033O24~", 0424 }, /* key F12 */
611 { 3, "\033Oq", 0534 }, /* ka1 upper-left of keypad */
612 { 3, "\033Os", 0535 }, /* ka3 upper-right of keypad */
613 { 3, "\033Or", 0536 }, /* kb2 center of keypad */
614 { 3, "\033Op", 0537 }, /* kc1 lower-left of keypad */
615 { 3, "\033On", 0540 }, /* kc3 lower-right of keypad */
616
617 { 0, "", 0 } /* end */
618 };
619
620 struct Parameters {
621 int value;
622 struct Parameters *next;
623 };
624
625 int Key_vals[] = {
626 0407, 0526, 0515, 0525, 0512, 0510, 0402, 0514, 0517, 0516, 0410, 0411,
627 0422, 0412, 0413, 0414, 0415, 0416, 0417, 0420, 0421, 0406, 0513, 0511,
628 0404, 0533, 0522, 0523, 0405, 0520, 0521, 0524, 0403,
629 0534, 0535, 0536, 0537, 0540, 0541, 0542, 0543, 0544, 0545, 0546, 0547,
630 0550, 0527, 0551, 0552, 0553, 0554, 0555, 0556, 0557, 0560, 0561, 0562,
631 0532, 0563, 0564, 0565, 0566, 0567, 0570, 0571, 0627, 0630, 0572, 0573,
632 0574, 0575, 0576, 0577, 0600, 0601, 0602, 0603, 0604, 0605, 0606, 0607,
633 0610, 0611, 0612, 0613, 0614, 0615, 0616, 0617, 0620, 0621, 0622, 0623,
634 0624, 0625, 0626, 0423, 0424, 0425, 0426, 0427, 0430, 0431,
635 0432, 0433, 0434, 0435, 0436, 0437, 0440, 0441, 0442, 0443, 0444, 0445,
636 0446, 0447, 0450, 0451, 0452, 0453, 0454, 0455, 0456, 0457, 0460, 0461,
637 0462, 0463, 0464, 0465, 0466, 0467, 0470, 0471, 0472, 0473, 0474, 0475,
638 0476, 0477, 0500, 0501, 0502, 0503, 0504, 0505, 0506, 0507
639 };
640
641 int attributes_set[9];
642
643 static int nc_attributes = 0; /* global attributes for new_curse to observe */
644
645 #ifdef SYS5
646 struct termio Terminal;
647 struct termio Saved_tty;
648 #else
649 struct sgttyb Terminal;
650 struct sgttyb Saved_tty;
651 #endif
652
653 char *tc_;
654
655 int Booleans[128];
656 int Numbers[128];
657 char *String_table[1024];
658
659 int *virtual_lines;
660
661 static char nc_scrolling_ability = FALSE;
662
663 char *terminfo_path[] = {
664 "/usr/lib/terminfo",
665 "/usr/share/lib/terminfo",
666 "/usr/share/terminfo",
667 NULL
668 };
669
670 #ifdef CAP
671
672 #if defined(__STDC__) || defined(__cplusplus)
673 #define P_(s) s
674 #else
675 #define P_(s) ()
676 #endif /* __STDC__ */
677
678 int tc_Get_int P_((int));
679 void CAP_PARSE P_((void));
680 void Find_term P_((void));
681
682 #undef P_
683
684 #endif /* CAP */
685
686
687 #ifndef __STDC__
688 #ifndef HAS_STDLIB
689 extern char *fgets();
690 extern char *malloc();
691 extern char *getenv();
692 FILE *fopen(); /* declaration for open function */
693 #endif /* HAS_STDLIB */
694 #endif /* __STDC__ */
695
696 #ifdef SIGWINCH
697
698 /*
699 | Copy the contents of one window to another.
700 */
701
702 void
copy_window(origin,destination)703 copy_window(origin, destination)
704 WINDOW *origin, *destination;
705 {
706 int row, column;
707 struct _line *orig, *dest;
708
709 orig = origin->first_line;
710 dest = destination->first_line;
711
712 for (row = 0;
713 row < (min(origin->Num_lines, destination->Num_lines));
714 row++)
715 {
716 for (column = 0;
717 column < (min(origin->Num_cols, destination->Num_cols));
718 column++)
719 {
720 dest->row[column] = orig->row[column];
721 dest->attributes[column] = orig->attributes[column];
722 }
723 dest->changed = orig->changed;
724 dest->scroll = orig->scroll;
725 dest->last_char = min(orig->last_char, destination->Num_cols);
726 orig = orig->next_screen;
727 dest = dest->next_screen;
728 }
729 destination->LX = min((destination->Num_cols - 1), origin->LX);
730 destination->LY = min((destination->Num_lines - 1), origin->LY);
731 destination->Attrib = origin->Attrib;
732 destination->scroll_up = origin->scroll_up;
733 destination->scroll_down = origin->scroll_down;
734 destination->SCROLL_CLEAR = origin->SCROLL_CLEAR;
735 }
736
737 void
reinitscr(foo)738 reinitscr(foo)
739 int foo;
740 {
741 WINDOW *local_virt;
742 WINDOW *local_std;
743 WINDOW *local_cur;
744
745 signal(SIGWINCH, reinitscr);
746 #ifdef TIOCGWINSZ
747 if (ioctl(0, TIOCGWINSZ, &ws) >= 0)
748 {
749 if (ws.ws_row == LINES && ws.ws_col == COLS)
750 return;
751 if (ws.ws_row > 0)
752 LINES = ws.ws_row;
753 if (ws.ws_col > 0)
754 COLS = ws.ws_col;
755 }
756 #endif /* TIOCGWINSZ */
757 local_virt = newwin(LINES, COLS, 0, 0);
758 local_std = newwin(LINES, COLS, 0, 0);
759 local_cur = newwin(LINES, COLS, 0, 0);
760 copy_window(virtual_scr, local_virt);
761 copy_window(stdscr, local_std);
762 copy_window(curscr, local_cur);
763 delwin(virtual_scr);
764 delwin(stdscr);
765 delwin(curscr);
766 virtual_scr = local_virt;
767 stdscr = local_std;
768 curscr = local_cur;
769 free(virtual_lines);
770 virtual_lines = (int *) malloc(LINES * (sizeof(int)));
771 interrupt_flag = TRUE;
772 }
773 #endif /* SIGWINCH */
774
775 void
initscr()776 initscr() /* initialize terminal for operations */
777 {
778 int value;
779 int counter;
780 char *lines_string;
781 char *columns_string;
782 #ifdef CAP
783 char *pointer;
784 #endif /* CAP */
785
786 #ifdef DIAG
787 printf("starting initscr \n");fflush(stdout);
788 #endif
789 if (initialized)
790 return;
791 #ifdef BSD_SELECT
792 setbuf(stdin, NULL);
793 #endif /* BSD_SELECT */
794 Flip_Bytes = FALSE;
795 Parity = 0;
796 Time_Out = FALSE;
797 bufp = 0;
798 Move_It = FALSE;
799 Noblock = FALSE;
800 #ifdef SYS5
801 value = ioctl(0, TCGETA, &Terminal);
802 if (Terminal.c_cflag & PARENB)
803 {
804 if (Terminal.c_cflag & PARENB)
805 Parity = 1;
806 else
807 Parity = 2;
808 }
809 if ((Terminal.c_cflag & CS8) == CS8)
810 {
811 Num_bits = 8;
812 }
813 else if ((Terminal.c_cflag & CS7) == CS7)
814 Num_bits = 7;
815 else if ((Terminal.c_cflag & CS6) == CS6)
816 Num_bits = 6;
817 else
818 Num_bits = 5;
819 value = Terminal.c_cflag & 037;
820 switch (value) {
821 case 01: speed = 50.0;
822 break;
823 case 02: speed = 75.0;
824 break;
825 case 03: speed = 110.0;
826 break;
827 case 04: speed = 134.5;
828 break;
829 case 05: speed = 150.0;
830 break;
831 case 06: speed = 200.0;
832 break;
833 case 07: speed = 300.0;
834 break;
835 case 010: speed = 600.0;
836 break;
837 case 011: speed = 900.0;
838 break;
839 case 012: speed = 1200.0;
840 break;
841 case 013: speed = 1800.0;
842 break;
843 case 014: speed = 2400.0;
844 break;
845 case 015: speed = 3600.0;
846 break;
847 case 016: speed = 4800.0;
848 break;
849 case 017: speed = 7200.0;
850 break;
851 case 020: speed = 9600.0;
852 break;
853 case 021: speed = 19200.0;
854 break;
855 case 022: speed = 38400.0;
856 break;
857 default: speed = 0.0;
858 }
859 #else
860 value = ioctl(0, TIOCGETP, &Terminal);
861 if (Terminal.sg_flags & EVENP)
862 Parity = 2;
863 else if (Terminal.sg_flags & ODDP)
864 Parity = 1;
865 value = Terminal.sg_ospeed;
866 switch (value) {
867 case 01: speed = 50.0;
868 break;
869 case 02: speed = 75.0;
870 break;
871 case 03: speed = 110.0;
872 break;
873 case 04: speed = 134.5;
874 break;
875 case 05: speed = 150.0;
876 break;
877 case 06: speed = 200.0;
878 break;
879 case 07: speed = 300.0;
880 break;
881 case 010: speed = 600.0;
882 break;
883 case 011: speed = 1200.0;
884 break;
885 case 012: speed = 1800.0;
886 break;
887 case 013: speed = 2400.0;
888 break;
889 case 014: speed = 4800.0;
890 break;
891 case 015: speed = 9600.0;
892 break;
893 default: speed = 0.0;
894 }
895 #endif
896 chars_per_millisecond = (0.001 * speed) / 8.0;
897 TERMINAL_TYPE = getenv("TERM");
898 if (TERMINAL_TYPE == NULL)
899 {
900 printf("unknown terminal type\n");
901 exit(0);
902 }
903 #ifndef CAP
904 Fildes = -1;
905 TERM_PATH = getenv("TERMINFO");
906 if (TERM_PATH != NULL)
907 {
908 Data_Line_len = 23 + strlen(TERM_PATH) + strlen(TERMINAL_TYPE);
909 Term_File_name = malloc(Data_Line_len);
910 sprintf(Term_File_name, "%s/%c/%s", TERM_PATH, *TERMINAL_TYPE, TERMINAL_TYPE);
911 Fildes = open(Term_File_name, O_RDONLY);
912 if (Fildes == -1)
913 {
914 sprintf(Term_File_name, "%s/%x/%s", TERM_PATH, *TERMINAL_TYPE, TERMINAL_TYPE);
915 Fildes = open(Term_File_name, O_RDONLY);
916 }
917 }
918 counter = 0;
919 while ((Fildes == -1) && (terminfo_path[counter] != NULL))
920 {
921 TERM_PATH = terminfo_path[counter];
922 Data_Line_len = 23 + strlen(TERM_PATH) + strlen(TERMINAL_TYPE);
923 Term_File_name = malloc(Data_Line_len);
924 sprintf(Term_File_name, "%s/%c/%s", TERM_PATH, *TERMINAL_TYPE, TERMINAL_TYPE);
925 Fildes = open(Term_File_name, O_RDONLY);
926 if (Fildes == -1)
927 {
928 sprintf(Term_File_name, "%s/%x/%s", TERM_PATH, *TERMINAL_TYPE, TERMINAL_TYPE);
929 Fildes = open(Term_File_name, O_RDONLY);
930 }
931 counter++;
932 }
933 if (Fildes == -1)
934 {
935 free(Term_File_name);
936 Term_File_name = NULL;
937 }
938 else
939 TERM_INFO = INFO_PARSE();
940 #else
941 /*
942 | termcap information can be in the TERMCAP env variable, if so
943 | use that, otherwise check the /etc/termcap file
944 */
945 if ((pointer = Term_File_name = getenv("TERMCAP")) != NULL)
946 {
947 if (*Term_File_name != '/')
948 Term_File_name = TERMCAP;
949 }
950 else
951 {
952 Term_File_name = TERMCAP;
953 }
954 if ((TFP = fopen(Term_File_name, "r")) == NULL)
955 {
956 printf("unable to open %s file \n", TERMCAP);
957 exit(0);
958 }
959 for (value = 0; value < 1024; value++)
960 String_table[value] = NULL;
961 for (value = 0; value < 128; value++)
962 Booleans[value] = 0;
963 for (value = 0; value < 128; value++)
964 Numbers[value] = 0;
965 Data_Line = malloc(512);
966 if (pointer && *pointer != '/')
967 {
968 TERM_data_ptr = pointer;
969 CAP_PARSE();
970 }
971 else
972 {
973 Find_term();
974 CAP_PARSE();
975 }
976 #endif
977 if (String_table[pc__] == NULL)
978 String_table[pc__] = "\0";
979 if ((String_table[cm__] == NULL) || (Booleans[hc__]))
980 {
981 fprintf(stderr, "sorry, unable to use this terminal type for screen editing\n");
982 exit(0);
983 }
984 Key_Get();
985 keys_vt100();
986 LINES = Numbers[li__];
987 COLS = Numbers[co__];
988 if ((lines_string = getenv("LINES")) != NULL)
989 {
990 value = atoi(lines_string);
991 if (value > 0)
992 LINES = value;
993 }
994 if ((columns_string = getenv("COLUMNS")) != NULL)
995 {
996 value = atoi(columns_string);
997 if (value > 0)
998 COLS = value;
999 }
1000 #ifdef TIOCGWINSZ
1001 /*
1002 | get the window size
1003 */
1004 if (ioctl(0, TIOCGWINSZ, &ws) >= 0)
1005 {
1006 if (ws.ws_row > 0)
1007 LINES = ws.ws_row;
1008 if (ws.ws_col > 0)
1009 COLS = ws.ws_col;
1010 }
1011 #endif
1012 virtual_scr = newwin(LINES, COLS, 0, 0);
1013 stdscr = newwin(LINES, COLS, 0, 0);
1014 curscr = newwin(LINES, COLS, 0, 0);
1015 wmove(stdscr, 0, 0);
1016 werase(stdscr);
1017 Repaint_screen = TRUE;
1018 initialized = TRUE;
1019 virtual_lines = (int *) malloc(LINES * (sizeof(int)));
1020
1021 #ifdef SIGWINCH
1022 /*
1023 | reset size of windows and LINES and COLS if term window
1024 | changes size
1025 */
1026 signal(SIGWINCH, reinitscr);
1027 #endif /* SIGWINCH */
1028
1029 /*
1030 | check if scrolling is available
1031 */
1032
1033 nc_scrolling_ability = ((String_table[al__] != NULL) &&
1034 (String_table[dl__])) || ((String_table[cs__])
1035 && (String_table[sr__]));
1036
1037 }
1038
1039 #ifndef CAP
1040 int
Get_int()1041 Get_int() /* get a two-byte integer from the terminfo file */
1042 {
1043 int High_byte;
1044 int Low_byte;
1045 int temp;
1046
1047 Low_byte = *((unsigned char *) TERM_data_ptr++);
1048 High_byte = *((unsigned char *) TERM_data_ptr++);
1049 if (Flip_Bytes)
1050 {
1051 temp = Low_byte;
1052 Low_byte = High_byte;
1053 High_byte = temp;
1054 }
1055 if ((High_byte == 255) && (Low_byte == 255))
1056 return (-1);
1057 else
1058 return(Low_byte + (High_byte * 256));
1059 }
1060
1061 int
INFO_PARSE()1062 INFO_PARSE() /* parse off the data in the terminfo data file */
1063 {
1064 int offset;
1065 int magic_number = 0;
1066 int counter = 0;
1067 int Num_names = 0;
1068 int Num_bools = 0;
1069 int Num_ints = 0;
1070 int Num_strings = 0;
1071 int string_table_len = 0;
1072 char *temp_ptr;
1073
1074 TERM_data_ptr = Data_Line = malloc((10240 * (sizeof(char))));
1075 Data_Line_len = read(Fildes, Data_Line, 10240);
1076 if ((Data_Line_len >= 10240) || (Data_Line_len < 0))
1077 return(0);
1078 /*
1079 | get magic number
1080 */
1081 magic_number = Get_int();
1082 /*
1083 | if magic number not right, reverse byte order and check again
1084 */
1085 if (magic_number != 282)
1086 {
1087 Flip_Bytes = TRUE;
1088 TERM_data_ptr--;
1089 TERM_data_ptr--;
1090 magic_number = Get_int();
1091 if (magic_number != 282)
1092 return(0);
1093 }
1094 /*
1095 | get the number of each type in the terminfo data file
1096 */
1097 Num_names = Get_int();
1098 Num_bools = Get_int();
1099 Num_ints = Get_int();
1100 Num_strings = Get_int();
1101 string_table_len = Get_int();
1102 Strings = malloc(string_table_len);
1103 while (Num_names > 0)
1104 {
1105 TERM_data_ptr++;
1106 Num_names--;
1107 }
1108 counter = 0;
1109 while (Num_bools)
1110 {
1111 Num_bools--;
1112 Booleans[counter++] = *TERM_data_ptr++;
1113 }
1114 if ((unsigned long)TERM_data_ptr & 1) /* force alignment */
1115 TERM_data_ptr++;
1116 counter = 0;
1117 while (Num_ints)
1118 {
1119 Num_ints--;
1120 Numbers[counter] = Get_int();
1121 counter++;
1122 }
1123 temp_ptr = TERM_data_ptr + Num_strings + Num_strings;
1124 memcpy(Strings, temp_ptr, string_table_len);
1125 counter = bt__;
1126 while (Num_strings)
1127 {
1128 Num_strings--;
1129 if ((offset=Get_int()) != -1)
1130 {
1131 if (String_table[counter] == NULL)
1132 String_table[counter] = Strings + offset;
1133 }
1134 else
1135 String_table[counter] = NULL;
1136 counter++;
1137 }
1138 close(Fildes);
1139 free(Data_Line);
1140 return(TRUE);
1141 }
1142 #endif /* ifndef CAP */
1143
1144 int
AtoI()1145 AtoI() /* convert ascii text to integers */
1146 {
1147 int Temp;
1148
1149 Temp = 0;
1150 while ((*TERM_data_ptr >= '0') && (*TERM_data_ptr <= '9'))
1151 {
1152 Temp = (Temp * 10) + (*TERM_data_ptr - '0');
1153 TERM_data_ptr++;
1154 }
1155 return(Temp);
1156 }
1157
1158 void
Key_Get()1159 Key_Get() /* create linked list with all key sequences obtained from terminal database */
1160 {
1161 int Counter;
1162 int Klen;
1163 int key_def;
1164 struct KEY_STACK *Spoint;
1165
1166 Max_Key_len = 0;
1167 Counter = 0;
1168 key_def = kb__;
1169 while (key_def <= kf63__)
1170 {
1171 if (key_def == ke__)
1172 key_def = K1__;
1173 else if (key_def == (K5__ + 1))
1174 key_def = kcbt__;
1175 else if (key_def == (kcbt__ + 1))
1176 key_def = kbeg__;
1177 else if (key_def == (kUND__ + 1))
1178 key_def = kf11__;
1179 if (String_table[key_def] != NULL)
1180 {
1181 if (KEY_TOS == NULL)
1182 Spoint = KEY_TOS = (struct KEY_STACK *) malloc(sizeof(struct KEY_STACK));
1183 else
1184 {
1185 Spoint = KEY_TOS;
1186 while (Spoint->next != NULL)
1187 Spoint = Spoint->next;
1188 Spoint->next = (struct KEY_STACK *) malloc(sizeof(struct KEY_STACK));
1189 Spoint = Spoint->next;
1190 }
1191 Spoint->next = NULL;
1192 Spoint->element = (struct KEYS *) malloc(sizeof(struct KEYS));
1193 Spoint->element->string = String_table[key_def];
1194 Spoint->element->length = strlen(String_table[key_def]);
1195 Spoint->element->value = Key_vals[Counter];
1196 Klen = strlen(Spoint->element->string);
1197 if (Klen > Max_Key_len)
1198 Max_Key_len = Klen;
1199 /*
1200 | Some terminal types accept keystrokes of the form
1201 | \E[A and \EOA, substituting '[' for 'O'. Make a
1202 | duplicate of such key strings (since the
1203 | database will only have one version) so new_curse
1204 | can understand both.
1205 */
1206 if ((Spoint->element->length > 1) &&
1207 ((String_table[key_def][1] == '[') ||
1208 (String_table[key_def][1] == 'O')))
1209 {
1210 Spoint->next = (struct KEY_STACK *) malloc(sizeof(struct KEY_STACK));
1211 Spoint = Spoint->next;
1212 Spoint->next = NULL;
1213 Spoint->element = (struct KEYS *) malloc(sizeof(struct KEYS));
1214 Spoint->element->length = strlen(String_table[key_def]);
1215 Spoint->element->string = malloc(Spoint->element->length + 1);
1216 strcpy(Spoint->element->string, String_table[key_def]);
1217 Spoint->element->value = Key_vals[Counter];
1218 Klen = strlen(Spoint->element->string);
1219 if (Klen > Max_Key_len)
1220 Max_Key_len = Klen;
1221
1222 if (String_table[key_def][1] == '[')
1223 Spoint->element->string[1] = 'O';
1224 else
1225 Spoint->element->string[1] = '[';
1226 }
1227 }
1228 key_def++;
1229 Counter++;
1230 }
1231 }
1232
1233 /*
1234 | insert information about keys for a vt100 terminal
1235 */
1236
1237 void
keys_vt100()1238 keys_vt100()
1239 {
1240 int counter;
1241 int Klen;
1242 struct KEY_STACK *Spoint;
1243
1244 Spoint = KEY_TOS;
1245 while (Spoint->next != NULL)
1246 Spoint = Spoint->next;
1247 for (counter = 0; vt100[counter].length != 0; counter++)
1248 {
1249 Spoint->next = (struct KEY_STACK *) malloc(sizeof(struct KEY_STACK));
1250 Spoint = Spoint->next;
1251 Spoint->next = NULL;
1252 Spoint->element = &vt100[counter];
1253 Klen = strlen(Spoint->element->string);
1254 if (Klen > Max_Key_len)
1255 Max_Key_len = Klen;
1256 }
1257 }
1258
1259 #ifdef CAP
1260 char *
String_Get(param)1261 String_Get(param) /* read the string */
1262 char *param;
1263 {
1264 char *String;
1265 char *Temp;
1266 int Counter;
1267
1268 if (param == NULL)
1269 {
1270 while (*TERM_data_ptr != '=')
1271 TERM_data_ptr++;
1272 Temp = ++TERM_data_ptr;
1273 Counter = 1;
1274 while ((*Temp != ':') && (*Temp != (char)NULL))
1275 {
1276 Counter++;
1277 Temp++;
1278 }
1279 if (Counter == 1) /* no data */
1280 return(NULL);
1281 String = Temp = malloc(Counter);
1282 while ((*TERM_data_ptr != ':') && (*TERM_data_ptr != (char)NULL))
1283 {
1284 if (*TERM_data_ptr == '\\')
1285 {
1286 TERM_data_ptr++;
1287 if (*TERM_data_ptr == 'n')
1288 *Temp = '\n';
1289 else if (*TERM_data_ptr == 't')
1290 *Temp = '\t';
1291 else if (*TERM_data_ptr == 'b')
1292 *Temp = '\b';
1293 else if (*TERM_data_ptr == 'r')
1294 *Temp = '\r';
1295 else if (*TERM_data_ptr == 'f')
1296 *Temp = '\f';
1297 else if ((*TERM_data_ptr == 'e') || (*TERM_data_ptr == 'E'))
1298 *Temp = '\033'; /* escape */
1299 else if (*TERM_data_ptr == '\\')
1300 *Temp = '\\';
1301 else if (*TERM_data_ptr == '\'')
1302 *Temp = '\'';
1303 else if ((*TERM_data_ptr >= '0') && (*TERM_data_ptr <= '9'))
1304 {
1305 Counter = 0;
1306 while ((*TERM_data_ptr >= '0') && (*TERM_data_ptr <= '9'))
1307 {
1308 Counter = (8 * Counter) + (*TERM_data_ptr - '0');
1309 TERM_data_ptr++; /* ? */
1310 }
1311 *Temp = Counter;
1312 TERM_data_ptr--;
1313 }
1314 TERM_data_ptr++;
1315 Temp++;
1316 }
1317 else if (*TERM_data_ptr == '^')
1318 {
1319 TERM_data_ptr++;
1320 if ((*TERM_data_ptr >= '@') && (*TERM_data_ptr <= '_'))
1321 *Temp = *TERM_data_ptr - '@';
1322 else if (*TERM_data_ptr == '?')
1323 *Temp = 127;
1324 TERM_data_ptr++;
1325 Temp++;
1326 }
1327 else
1328 *Temp++ = *TERM_data_ptr++;
1329 }
1330 *Temp = (char)NULL;
1331 param = String;
1332 }
1333 else
1334 {
1335 while ((*TERM_data_ptr != (char)NULL) && (*TERM_data_ptr != ':'))
1336 TERM_data_ptr++;
1337 }
1338 return(param);
1339 }
1340
1341 int
tc_Get_int(param)1342 tc_Get_int(param) /* read the integer */
1343 int param;
1344 {
1345 int Itemp;
1346
1347 if (param == 0)
1348 {
1349 while ((*TERM_data_ptr != (char)NULL) && (*TERM_data_ptr != '#'))
1350 TERM_data_ptr++;
1351 TERM_data_ptr++;
1352 Itemp = AtoI();
1353 param = Itemp;
1354 }
1355 else
1356 {
1357 while (*TERM_data_ptr != ':')
1358 TERM_data_ptr++;
1359 }
1360 return(param);
1361 }
1362
1363 void
Find_term()1364 Find_term() /* find terminal description in termcap file */
1365 {
1366 char *Name;
1367 char *Ftemp;
1368
1369 Ftemp = Name = malloc(strlen(TERMINAL_TYPE) + 2);
1370 strcpy(Name, TERMINAL_TYPE);
1371 while (*Ftemp != (char)NULL)
1372 Ftemp++;
1373 *Ftemp++ = '|';
1374 *Ftemp = (char)NULL;
1375 CFOUND = FALSE;
1376 Data_Line_len = strlen(TERMINAL_TYPE) + 1;
1377 while ((!CFOUND) && ((TERM_data_ptr=fgets(Data_Line, 512, TFP)) != NULL))
1378 {
1379 if ((*TERM_data_ptr != ' ') && (*TERM_data_ptr != '\t') && (*TERM_data_ptr != '#'))
1380 {
1381 while ((!CFOUND) && (*TERM_data_ptr != (char)NULL))
1382 {
1383 CFOUND = !strncmp(TERM_data_ptr, Name, Data_Line_len);
1384 while ((*TERM_data_ptr != (char)NULL) && (*TERM_data_ptr != '|') && (*TERM_data_ptr != '#') && (*TERM_data_ptr != ':'))
1385 TERM_data_ptr++;
1386 if (*TERM_data_ptr == '|')
1387 TERM_data_ptr++;
1388 else if (!CFOUND)
1389 *TERM_data_ptr = (char)NULL;
1390 }
1391 }
1392 }
1393 if (!CFOUND)
1394 {
1395 printf("terminal type %s not found\n", TERMINAL_TYPE);
1396 exit(0);
1397 }
1398 }
1399
1400 void
CAP_PARSE()1401 CAP_PARSE() /* parse off the data in the termcap data file */
1402 {
1403 int offset;
1404 int found;
1405
1406 do
1407 {
1408 while (*TERM_data_ptr != (char)NULL)
1409 {
1410 for (found = FALSE, offset = 0; (!found) && (offset < 26); offset++)
1411 {
1412 if (!strncmp(TERM_data_ptr, Boolean_names[offset], 2))
1413 {
1414 found = TRUE;
1415 Booleans[offset] = TRUE;
1416 }
1417 }
1418 if (!found)
1419 {
1420 for (found = FALSE, offset = 0; (!found) && (offset < lw__); offset++)
1421 {
1422 if (!strncmp(TERM_data_ptr, Number_names[offset], 3))
1423 {
1424 found = TRUE;
1425 Numbers[offset] = tc_Get_int(Numbers[offset]);
1426 }
1427 }
1428 }
1429 if (!found)
1430 {
1431 for (found = FALSE, offset = 0; (!found) && (offset < smgr__); offset++)
1432 {
1433 if (!strncmp(TERM_data_ptr, String_names[offset], 3))
1434 {
1435 found = TRUE;
1436 String_table[offset] = String_Get(String_table[offset]);
1437 }
1438 }
1439 }
1440
1441 if (!strncmp(TERM_data_ptr, "tc=", 3))
1442 tc_ = String_Get(NULL);
1443 while ((*TERM_data_ptr != ':') && (*TERM_data_ptr != (char)NULL))
1444 TERM_data_ptr++;
1445 if (*TERM_data_ptr == ':')
1446 TERM_data_ptr++;
1447 }
1448 } while (((TERM_data_ptr = fgets(Data_Line, 512, TFP)) != NULL) && ((*TERM_data_ptr == ' ') || (*TERM_data_ptr == '\t')));
1449 if (tc_ != NULL)
1450 {
1451 TERMINAL_TYPE = tc_;
1452 rewind(TFP);
1453 Find_term();
1454 tc_ = NULL;
1455 CAP_PARSE();
1456 }
1457 else
1458 fclose(TFP);
1459 }
1460 #endif /* ifdef CAP */
1461
1462 struct _line *
Screenalloc(columns)1463 Screenalloc(columns)
1464 int columns;
1465 {
1466 int i;
1467 struct _line *tmp;
1468
1469 tmp = (struct _line *) malloc(sizeof (struct _line));
1470 tmp->row = malloc(columns + 1);
1471 tmp->attributes = malloc(columns + 1);
1472 tmp->prev_screen = NULL;
1473 tmp->next_screen = NULL;
1474 for (i = 0; i < columns; i++)
1475 {
1476 tmp->row[i] = ' ';
1477 tmp->attributes[i] = '\0';
1478 }
1479 tmp->scroll = tmp->changed = FALSE;
1480 tmp->row[0] = '\0';
1481 tmp->attributes[0] = '\0';
1482 tmp->row[columns] = '\0';
1483 tmp->attributes[columns] = '\0';
1484 tmp->last_char = 0;
1485 return(tmp);
1486 }
1487
newwin(lines,cols,start_l,start_c)1488 WINDOW *newwin(lines, cols, start_l, start_c)
1489 int lines, cols; /* number of lines and columns to be in window */
1490 int start_l, start_c; /* starting line and column to be inwindow */
1491 {
1492 WINDOW *Ntemp;
1493 struct _line *temp_screen;
1494 int i;
1495
1496 Ntemp = (WINDOW *) malloc(sizeof(WINDOW));
1497 Ntemp->SR = start_l;
1498 Ntemp->SC = start_c;
1499 Ntemp->Num_lines = lines;
1500 Ntemp->Num_cols = cols;
1501 Ntemp->LX = 0;
1502 Ntemp->LY = 0;
1503 Ntemp->scroll_down = Ntemp->scroll_up = 0;
1504 Ntemp->SCROLL_CLEAR = FALSE;
1505 Ntemp->Attrib = FALSE;
1506 Ntemp->first_line = temp_screen = Screenalloc(cols);
1507 Ntemp->first_line->number = 0;
1508 Ntemp->line_array = (struct _line **) malloc(LINES * sizeof(struct _line *));
1509
1510 Ntemp->line_array[0] = Ntemp->first_line;
1511
1512 for (i = 1; i < lines; i++)
1513 {
1514 temp_screen->next_screen = Screenalloc(cols);
1515 temp_screen->next_screen->number = i;
1516 temp_screen->next_screen->prev_screen = temp_screen;
1517 temp_screen = temp_screen->next_screen;
1518 Ntemp->line_array[i] = temp_screen;
1519 }
1520 Ntemp->first_line->prev_screen = NULL;
1521 temp_screen->next_screen = NULL;
1522 return(Ntemp);
1523 }
1524
1525 #ifdef CAP
1526 void
Cap_Out(string,p_list,place)1527 Cap_Out(string, p_list, place) /* interpret the output string if necessary */
1528 char *string;
1529 int p_list[]; /* stack of values */
1530 int place; /* place keeper of top of stack */
1531 {
1532 char *Otemp; /* temporary string pointer to parse output */
1533 int delay;
1534 int p1, p2, temp;
1535 float chars;
1536
1537 if (string == NULL)
1538 return;
1539
1540 if (p_list != NULL)
1541 {
1542 p1 = p_list[--place];
1543 p2 = p_list[--place];
1544 }
1545 delay = 0;
1546 Otemp = string;
1547 if ((*Otemp >= '0') && (*Otemp <= '9'))
1548 {
1549 delay = atoi(Otemp);
1550 while ((*Otemp >= '0') && (*Otemp <= '9'))
1551 Otemp++;
1552 if (*Otemp == '*')
1553 Otemp++;
1554 }
1555 while (*Otemp != (char)NULL)
1556 {
1557 if (*Otemp == '%')
1558 {
1559 Otemp++;
1560 if ((*Otemp == 'd') || (*Otemp == '2') || (*Otemp == '3') || (*Otemp == '.') || (*Otemp == '+'))
1561 {
1562 if (*Otemp == 'd')
1563 printf("%d", p1);
1564 else if (*Otemp == '2')
1565 printf("%02d", p1);
1566 else if (*Otemp == '3')
1567 printf("%03d", p1);
1568 else if (*Otemp == '+')
1569 {
1570 Otemp++;
1571 p1 += *Otemp;
1572 putchar(p1);
1573 }
1574 else if (*Otemp == '.')
1575 putchar(p1);
1576 p1 = p2;
1577 p2 = 0;
1578 }
1579 else if (*Otemp == '>')
1580 {
1581 Otemp++;
1582 if (p1 > *Otemp)
1583 {
1584 Otemp++;
1585 p1 += *Otemp;
1586 }
1587 else
1588 Otemp++;
1589 }
1590 else if (*Otemp == 'r')
1591 {
1592 temp = p1;
1593 p1 = p2;
1594 p2 = temp;
1595 }
1596 else if (*Otemp == 'i')
1597 {
1598 p1++;
1599 p2++;
1600 }
1601 else if (*Otemp == '%')
1602 putchar(*Otemp);
1603 else if (*Otemp == 'n')
1604 {
1605 p1 ^= 0140;
1606 p2 ^= 0140;
1607 }
1608 else if (*Otemp == 'B')
1609 {
1610 p1 = (16 * (p1/10)) + (p1 % 10);
1611 p2 = (16 * (p2/10)) + (p2 % 10);
1612 }
1613 else if (*Otemp == 'D')
1614 {
1615 p1 = (p1 - 2 * (p1 % 16));
1616 p2 = (p2 - 2 * (p2 % 16));
1617 }
1618 }
1619 else
1620 putchar (*Otemp);
1621 Otemp++;
1622 }
1623 if (delay != 0)
1624 {
1625 chars = delay * chars_per_millisecond;
1626 delay = chars;
1627 if ((chars - delay) > 0.0)
1628 delay++;
1629 for (; delay > 0; delay--)
1630 putchar(*String_table[pc__]);
1631 }
1632 fflush(stdout);
1633 }
1634
1635 #else
1636
1637 char *Otemp; /* temporary string pointer to parse output */
1638 float chars;
1639 int p[10];
1640 int variable[27];
1641
1642 int
Operation(Temp_Stack,place)1643 Operation(Temp_Stack, place) /* handle conditional operations */
1644 int Temp_Stack[];
1645 int place;
1646 {
1647 int temp;
1648
1649 if (*Otemp == 'd')
1650 {
1651 Otemp++;
1652 temp = Temp_Stack[--place];
1653 printf("%d", temp);
1654 }
1655 else if (!strncmp(Otemp, "2d", 2))
1656 {
1657 temp = Temp_Stack[--place];
1658 printf("%2d", temp);
1659 Otemp++;
1660 Otemp++;
1661 }
1662 else if (!strncmp(Otemp, "3d", 2))
1663 {
1664 temp = Temp_Stack[--place];
1665 printf("%0d", temp);
1666 Otemp++;
1667 Otemp++;
1668 }
1669 else if (!strncmp(Otemp, "02d", 3))
1670 {
1671 temp = Temp_Stack[--place];
1672 printf("%02d", temp);
1673 Otemp++;
1674 Otemp++;
1675 Otemp++;
1676 }
1677 else if (!strncmp(Otemp, "03d", 3))
1678 {
1679 temp = Temp_Stack[--place];
1680 printf("%03d", temp);
1681 Otemp++;
1682 Otemp++;
1683 Otemp++;
1684 }
1685 else if (*Otemp == '+')
1686 {
1687 Otemp++;
1688 temp = Temp_Stack[--place];
1689 temp += Temp_Stack[--place];
1690 Temp_Stack[place++] = temp;
1691 }
1692 else if (*Otemp == '-')
1693 {
1694 Otemp++;
1695 temp = Temp_Stack[--place];
1696 temp -= Temp_Stack[--place];
1697 Temp_Stack[place++] = temp;
1698 }
1699 else if (*Otemp == '*')
1700 {
1701 Otemp++;
1702 temp = Temp_Stack[--place];
1703 temp *= Temp_Stack[--place];
1704 Temp_Stack[place++] = temp;
1705 }
1706 else if (*Otemp == '/')
1707 {
1708 Otemp++;
1709 temp = Temp_Stack[--place];
1710 temp /= Temp_Stack[--place];
1711 Temp_Stack[place++] = temp;
1712 }
1713 else if (*Otemp == 'm')
1714 {
1715 Otemp++;
1716 temp = Temp_Stack[--place];
1717 temp %= Temp_Stack[--place];
1718 Temp_Stack[place++] = temp;
1719 }
1720 else if (*Otemp == '&')
1721 {
1722 Otemp++;
1723 temp = Temp_Stack[--place];
1724 temp &= Temp_Stack[--place];
1725 Temp_Stack[place++] = temp;
1726 }
1727 else if (*Otemp == '|')
1728 {
1729 Otemp++;
1730 temp = Temp_Stack[--place];
1731 temp |= Temp_Stack[--place];
1732 Temp_Stack[place++] = temp;
1733 }
1734 else if (*Otemp == '^')
1735 {
1736 Otemp++;
1737 temp = Temp_Stack[--place];
1738 temp ^= Temp_Stack[--place];
1739 Temp_Stack[place++] = temp;
1740 }
1741 else if (*Otemp == '=')
1742 {
1743 Otemp++;
1744 temp = Temp_Stack[--place];
1745 temp = (temp == Temp_Stack[--place]);
1746 Temp_Stack[place++] = temp;
1747 }
1748 else if (*Otemp == '>')
1749 {
1750 Otemp++;
1751 temp = Temp_Stack[--place];
1752 temp = temp > Temp_Stack[--place];
1753 Temp_Stack[place++] = temp;
1754 }
1755 else if (*Otemp == '<')
1756 {
1757 Otemp++;
1758 temp = Temp_Stack[--place];
1759 temp = temp < Temp_Stack[--place];
1760 Temp_Stack[place++] = temp;
1761 }
1762 else if (*Otemp == 'c')
1763 {
1764 Otemp++;
1765 putchar(Temp_Stack[--place]);
1766 }
1767 else if (*Otemp == 'i')
1768 {
1769 Otemp++;
1770 p[1]++;
1771 p[2]++;
1772 }
1773 else if (*Otemp == '%')
1774 {
1775 putchar(*Otemp);
1776 Otemp++;
1777 }
1778 else if (*Otemp == '!')
1779 {
1780 temp = ! Temp_Stack[--place];
1781 Temp_Stack[place++] = temp;
1782 Otemp++;
1783 }
1784 else if (*Otemp == '~')
1785 {
1786 temp = ~Temp_Stack[--place];
1787 Temp_Stack[place++] = temp;
1788 Otemp++;
1789 }
1790 else if (*Otemp == 'p')
1791 {
1792 Otemp++;
1793 Temp_Stack[place++] = p[*Otemp - '0'];
1794 Otemp++;
1795 }
1796 else if (*Otemp == 'P')
1797 {
1798 Otemp++;
1799 Temp_Stack[place++] = variable[*Otemp - 'a'];
1800 Otemp++;
1801 }
1802 else if (*Otemp == 'g')
1803 {
1804 Otemp++;
1805 variable[*Otemp - 'a'] = Temp_Stack[--place];
1806 Otemp++;
1807 }
1808 else if (*Otemp == '\'')
1809 {
1810 Otemp++;
1811 Temp_Stack[place++] = *Otemp;
1812 Otemp++;
1813 Otemp++;
1814 }
1815 else if (*Otemp == '{')
1816 {
1817 Otemp++;
1818 temp = atoi(Otemp);
1819 Temp_Stack[place++] = temp;
1820 while (*Otemp != '}')
1821 Otemp++;
1822 Otemp++;
1823 }
1824 return(place);
1825 }
1826
1827 void
Info_Out(string,p_list,place)1828 Info_Out(string, p_list, place) /* interpret the output string if necessary */
1829 char *string;
1830 int p_list[];
1831 int place;
1832 {
1833 char *tchar;
1834 int delay;
1835 int temp;
1836 int Cond_FLAG;
1837 int EVAL;
1838 int Cond_Stack[128];
1839 int Cond_place;
1840 int Stack[128];
1841 int Top_of_stack;
1842
1843 if (string == NULL)
1844 return;
1845
1846 Cond_FLAG = FALSE;
1847 Cond_place = 0;
1848 Top_of_stack = 0;
1849 p[0] = 0;
1850 p[1] = 0;
1851 p[2] = 0;
1852 p[3] = 0;
1853 p[4] = 0;
1854 p[5] = 0;
1855 p[6] = 0;
1856 p[7] = 0;
1857 p[8] = 0;
1858 p[9] = 0;
1859 if (p_list != NULL)
1860 {
1861 for (temp = 1; (place != 0); temp++)
1862 {
1863 p[temp] = p_list[--place];
1864 }
1865 }
1866 delay = 0;
1867 Otemp = string;
1868 while (*Otemp != '\0')
1869 {
1870 if (*Otemp == '%')
1871 {
1872 Otemp++;
1873 if ((*Otemp == '?') || (*Otemp == 't') || (*Otemp == 'e') || (*Otemp == ';'))
1874 {
1875 if (*Otemp == '?')
1876 {
1877 Otemp++;
1878 Cond_FLAG = TRUE;
1879 EVAL = TRUE;
1880 while (EVAL)
1881 {
1882 /*
1883 | find the end of the
1884 | conditional statement
1885 */
1886 while ((strncmp(Otemp, "%t", 2)) && (*Otemp != '\0'))
1887 {
1888 /*
1889 | move past '%'
1890 */
1891 Otemp++;
1892 Cond_place = Operation(Cond_Stack, Cond_place);
1893 }
1894
1895 /*
1896 | if condition is true
1897 */
1898 if ((Cond_place > 0) && (Cond_Stack[Cond_place-1]))
1899 {
1900 /*
1901 | end conditional
1902 | parsing
1903 */
1904 EVAL = FALSE;
1905 Otemp++;
1906 Otemp++;
1907 }
1908 else /* condition is false */
1909 {
1910 /*
1911 | find 'else' or end
1912 | of if statement
1913 */
1914 while ((strncmp(Otemp, "%e", 2)) && (strncmp(Otemp, "%;", 2)) && (*Otemp != '\0'))
1915 Otemp++;
1916 /*
1917 | if an 'else' found
1918 */
1919 if ((*Otemp != '\0') && (!strncmp(Otemp, "%e", 2)))
1920 {
1921 Otemp++;
1922 Otemp++;
1923 tchar = Otemp;
1924 /*
1925 | check for 'then' part
1926 */
1927 while ((*tchar != '\0') && (strncmp(tchar, "%t", 2)) && (strncmp(tchar, "%;", 2)))
1928 tchar++;
1929 /*
1930 | if end of string
1931 */
1932 if (*tchar == '\0')
1933 {
1934 EVAL = FALSE;
1935 Cond_FLAG = FALSE;
1936 Otemp = tchar;
1937 }
1938 /*
1939 | if end of if found,
1940 | set up to parse
1941 | info
1942 */
1943 else if (!strncmp(tchar, "%;", 2))
1944 EVAL = FALSE;
1945 /*
1946 | otherwise, check
1947 | conditional in
1948 | 'else'
1949 */
1950 }
1951 /*
1952 | if end of if found,
1953 | get out of if
1954 | statement
1955 */
1956 else if ((*Otemp != '\0') && (!strncmp(Otemp, "%;", 2)))
1957 {
1958 EVAL = FALSE;
1959 Otemp++;
1960 Otemp++;
1961 }
1962 else /* Otemp == NULL */
1963 {
1964 EVAL = FALSE;
1965 Cond_FLAG = FALSE;
1966 }
1967 }
1968 }
1969 }
1970 else
1971 {
1972 Otemp++;
1973 Cond_FLAG = FALSE;
1974 if (*Otemp != ';')
1975 {
1976 while ((*Otemp != '\0') && (strncmp(Otemp, "%;", 2)))
1977 Otemp++;
1978 if (*Otemp != '\0')
1979 {
1980 Otemp++;
1981 Otemp++;
1982 }
1983 }
1984 else
1985 Otemp++;
1986 }
1987 }
1988 else
1989 {
1990 Top_of_stack = Operation(Stack, Top_of_stack);
1991 }
1992 }
1993 else if (!strncmp(Otemp, "$<", 2))
1994 {
1995 Otemp++;
1996 Otemp++;
1997 delay = atoi(Otemp);
1998 while (*Otemp != '>')
1999 Otemp++;
2000 Otemp++;
2001 chars = delay * chars_per_millisecond;
2002 delay = chars;
2003 if ((chars - delay) > 0.0)
2004 delay++;
2005 if (String_table[pc__] == NULL)
2006 temp = 0;
2007 else
2008 temp = *String_table[pc__];
2009 for (; delay > 0; delay--)
2010 putc(temp, stdout);
2011 }
2012 else
2013 {
2014 putchar(*Otemp);
2015 Otemp++;
2016 }
2017 }
2018 fflush(stdout);
2019 }
2020 #endif
2021
2022 void
wmove(window,row,column)2023 wmove(window, row, column) /* move cursor to indicated position in window */
2024 WINDOW *window;
2025 int row, column;
2026 {
2027 if ((row < window->Num_lines) && (column < window->Num_cols))
2028 {
2029 window->LX = column;
2030 window->LY = row;
2031 }
2032 }
2033
2034 void
clear_line(line,column,cols)2035 clear_line(line, column, cols)
2036 struct _line *line;
2037 int column;
2038 int cols;
2039 {
2040 int j;
2041
2042 if (column > line->last_char)
2043 {
2044 for (j = line->last_char; j < column; j++)
2045 {
2046 line->row[j] = ' ';
2047 line->attributes[j] = '\0';
2048 }
2049 }
2050 line->last_char = column;
2051 line->row[column] = '\0';
2052 line->attributes[column] = '\0';
2053 line->changed = TRUE;
2054 }
2055
2056 void
werase(window)2057 werase(window) /* clear the specified window */
2058 WINDOW *window;
2059 {
2060 int i;
2061 struct _line *tmp;
2062
2063 window->SCROLL_CLEAR = CLEAR;
2064 window->scroll_up = window->scroll_down = 0;
2065 for (i = 0, tmp = window->first_line; i < window->Num_lines; i++, tmp = tmp->next_screen)
2066 clear_line(tmp, 0, window->Num_cols);
2067 }
2068
2069 void
wclrtoeol(window)2070 wclrtoeol(window) /* erase from current cursor position to end of line */
2071 WINDOW *window;
2072 {
2073 int column, row;
2074 struct _line *tmp;
2075
2076 window->SCROLL_CLEAR = CHANGE;
2077 column = window->LX;
2078 row = window->LY;
2079 for (row = 0, tmp = window->first_line; row < window->LY; row++)
2080 tmp = tmp->next_screen;
2081 clear_line(tmp, column, window->Num_cols);
2082 }
2083
2084 void
wrefresh(window)2085 wrefresh(window) /* flush all previous output */
2086 WINDOW *window;
2087 {
2088 wnoutrefresh(window);
2089 #ifdef DIAG
2090 {
2091 struct _line *temp;
2092 int value;
2093 fprintf(stderr, "columns=%d, lines=%d, SC=%d, SR=%d\n",window->Num_cols, window->Num_lines, window->SC, window->SR);
2094 for (value = 0, temp = window->first_line; value < window->Num_lines; value++, temp = temp->next_screen)
2095 {
2096 if (temp->number == -1)
2097 fprintf(stderr, "line moved ");
2098 if (temp->scroll)
2099 fprintf(stderr, "scroll_x is set: ");
2100 fprintf(stderr, "lc%d=%s|\n", temp->last_char, temp->row);
2101 }
2102 fprintf(stderr, "+-------------------- virtual screen ----------------------------------------+\n");
2103 fprintf(stderr, "columns=%d, lines=%d \n",virtual_scr->Num_cols, virtual_scr->Num_lines);
2104 for (value = 0, temp = virtual_scr->first_line; value < virtual_scr->Num_lines; value++, temp = temp->next_screen)
2105 {
2106 if (temp->number == -1)
2107 fprintf(stderr, "line moved ");
2108 if (temp->scroll)
2109 fprintf(stderr, "scroll_x is set: ");
2110 fprintf(stderr, "lc%d=%s|\n", temp->last_char, temp->row);
2111 }
2112 fprintf(stderr, "columns=%d, lines=%d \n",curscr->Num_cols, curscr->Num_lines);
2113 for (value = 0, temp = curscr->first_line; value < curscr->Num_lines; value++, temp = temp->next_screen)
2114 fprintf(stderr, "line=%s|\n", temp->row);
2115 }
2116 #endif
2117 doupdate();
2118 virtual_scr->SCROLL_CLEAR = FALSE;
2119 virtual_scr->scroll_down = virtual_scr->scroll_up = 0;
2120 fflush(stdout);
2121 }
2122
2123 void
touchwin(window)2124 touchwin(window)
2125 WINDOW *window;
2126 {
2127 struct _line *user_line;
2128 int line_counter = 0;
2129
2130 for (line_counter = 0, user_line = window->first_line;
2131 line_counter < window->Num_lines; line_counter++)
2132 {
2133 user_line->changed = TRUE;
2134 }
2135 window->SCROLL_CLEAR = TRUE;
2136 }
2137
2138 void
wnoutrefresh(window)2139 wnoutrefresh(window)
2140 WINDOW *window;
2141 {
2142 struct _line *user_line;
2143 struct _line *virtual_line;
2144 int line_counter = 0;
2145 int user_col = 0;
2146 int virt_col = 0;
2147
2148 if (window->SR >= virtual_scr->Num_lines)
2149 return;
2150 user_line = window->first_line;
2151 virtual_line = virtual_scr->first_line;
2152 virtual_scr->SCROLL_CLEAR = window->SCROLL_CLEAR;
2153 virtual_scr->LX = window->LX + window->SC;
2154 virtual_scr->LY = window->LY + window->SR;
2155 virtual_scr->scroll_up = window->scroll_up;
2156 virtual_scr->scroll_down = window->scroll_down;
2157 if ((last_window_refreshed == window) && (!window->SCROLL_CLEAR))
2158 return;
2159 for (line_counter = 0; line_counter < window->SR; line_counter++)
2160 {
2161 virtual_line = virtual_line->next_screen;
2162 }
2163 for (line_counter = 0; (line_counter < window->Num_lines)
2164 && ((line_counter + window->SR) < virtual_scr->Num_lines);
2165 line_counter++)
2166 {
2167 if ((last_window_refreshed != window) || (user_line->changed) || ((SCROLL | CLEAR) & window->SCROLL_CLEAR))
2168 {
2169 for (user_col = 0, virt_col = window->SC;
2170 (virt_col < virtual_scr->Num_cols)
2171 && (user_col < user_line->last_char);
2172 virt_col++, user_col++)
2173 {
2174 virtual_line->row[virt_col] = user_line->row[user_col];
2175 virtual_line->attributes[virt_col] = user_line->attributes[user_col];
2176 }
2177 for (user_col = user_line->last_char,
2178 virt_col = window->SC + user_line->last_char;
2179 (virt_col < virtual_scr->Num_cols)
2180 && (user_col < window->Num_cols);
2181 virt_col++, user_col++)
2182 {
2183 virtual_line->row[virt_col] = ' ';
2184 virtual_line->attributes[virt_col] = '\0';
2185 }
2186 }
2187 if (virtual_scr->Num_cols != window->Num_cols)
2188 {
2189 if (virtual_line->last_char < (user_line->last_char + window->SC))
2190 {
2191 if (virtual_line->row[virtual_line->last_char] == '\0')
2192 virtual_line->row[virtual_line->last_char] = ' ';
2193 virtual_line->last_char =
2194 min(virtual_scr->Num_cols,
2195 (user_line->last_char + window->SC));
2196 }
2197 }
2198 else
2199 virtual_line->last_char = user_line->last_char;
2200 virtual_line->row[virtual_line->last_char] = '\0';
2201 virtual_line->changed = user_line->changed;
2202 virtual_line = virtual_line->next_screen;
2203 user_line = user_line->next_screen;
2204 }
2205 window->SCROLL_CLEAR = FALSE;
2206 window->scroll_up = window->scroll_down = 0;
2207 last_window_refreshed = window;
2208 }
2209
2210 void
flushinp()2211 flushinp() /* flush input */
2212 {
2213 }
2214
2215 void
ungetch(c)2216 ungetch(c) /* push a character back on input */
2217 int c;
2218 {
2219 if (bufp < 100)
2220 in_buff[bufp++] = c;
2221 }
2222
2223 #ifdef BSD_SELECT
2224 int
timed_getchar()2225 timed_getchar()
2226 {
2227 struct timeval tv;
2228 fd_set fds;
2229 int ret_val;
2230 int nfds = 1;
2231 char temp;
2232
2233 FD_ZERO(&fds);
2234 tv.tv_sec = 0;
2235 tv.tv_usec = 500000; /* half a second */
2236 FD_SET(0, &fds);
2237 Time_Out = FALSE; /* just in case */
2238
2239 ret_val = select(nfds, &fds, 0, 0, &tv);
2240
2241 /*
2242 | if ret_val is less than zero, there was no input
2243 | otherwise, get a character and return it
2244 */
2245
2246 if (ret_val <= 0)
2247 {
2248 Time_Out = TRUE;
2249 return(-1);
2250 }
2251
2252 return(read(0, &temp, 1)? temp : -1);
2253 }
2254 #endif
2255
2256 int
wgetch(window)2257 wgetch(window) /* get character from specified window */
2258 WINDOW *window;
2259 {
2260 int in_value;
2261 char temp;
2262 #ifndef SYS5
2263 int old_arg;
2264 #endif /* SYS5 */
2265
2266 #ifdef BSD_SELECT
2267 if (Noblock)
2268 in_value = ((bufp > 0) ? in_buff[--bufp] : timed_getchar());
2269 else
2270 in_value = ((bufp > 0) ? in_buff[--bufp] : read(0, &temp, 1)? temp : -1);
2271 #else /* BSD_SELECT */
2272 #ifdef SYS5
2273 in_value = ((bufp > 0) ? in_buff[--bufp] :
2274 (read(0, &temp, 1)> 0) ? temp : -1);
2275 #else /* SYS5 */
2276 if (Noblock)
2277 {
2278 Time_Out = FALSE;
2279 old_arg = fcntl(0, F_GETFL, 0);
2280 in_value = fcntl(0, F_SETFL, old_arg | FNDELAY);
2281 }
2282 in_value = ((bufp > 0) ? in_buff[--bufp] : read(0, &temp, 1)? temp : -1);
2283 if (Noblock)
2284 {
2285 fcntl(0, F_SETFL, old_arg);
2286 if (Time_Out)
2287 in_value = -1;
2288 }
2289 #endif /* SYS5 */
2290 #endif /* BSD_SELECT */
2291
2292 if (in_value != -1)
2293 {
2294 in_value &= 0xff;
2295 if ((Parity) && (Num_bits < 8))
2296 /* strip eighth bit if parity in use */
2297 in_value &= 0177;
2298 }
2299 else if (interrupt_flag)
2300 {
2301 interrupt_flag = FALSE;
2302 in_value = wgetch(window);
2303 }
2304
2305 if ((in_value == '\033') || (in_value == '\037'))/* escape character */
2306 in_value = Get_key(in_value);
2307 return(in_value);
2308 }
2309
2310 #ifndef BSD_SELECT
2311 void
Clear(arg)2312 Clear(arg) /* notify that time out has occurred */
2313 int arg;
2314 {
2315 Time_Out = TRUE;
2316 #ifdef DEBUG
2317 fprintf(stderr, "inside Clear()\n");
2318 fflush(stderr);
2319 #endif /* DEBUG */
2320 }
2321 #endif /* BSD_SELECT */
2322
2323 int
Get_key(first_char)2324 Get_key(first_char) /* try to decode key sequence */
2325 int first_char; /* first character of sequence */
2326 {
2327 int in_char;
2328 int Count;
2329 char string[128];
2330 char *Gtemp;
2331 int Found;
2332 #ifdef SYS5
2333 struct termio Gterminal;
2334 #else
2335 struct sgttyb Gterminal;
2336 #endif
2337 struct KEY_STACK *St_point;
2338 #if (!defined( BSD_SELECT)) || (!defined(SYS5))
2339 int value;
2340 #endif /* BSD_SELECT */
2341
2342 Count = 0;
2343 Gtemp = string;
2344 string[Count++] = first_char;
2345 string[Count] = '\0';
2346 Time_Out = FALSE;
2347 #ifndef BSD_SELECT
2348 signal(SIGALRM, Clear);
2349 value = alarm(1);
2350 #endif /* BSD_SELECT */
2351 Noblock = TRUE;
2352 #ifdef SYS5
2353 Gterminal.c_cc[VTIME] = 0; /* timeout value */
2354 Gterminal.c_lflag &= ~ICANON; /* disable canonical operation */
2355 Gterminal.c_lflag &= ~ECHO; /* disable echo */
2356 #endif
2357 Count = 1;
2358 Found = FALSE;
2359 while ((Count < Max_Key_len) && (!Time_Out) && (!Found))
2360 {
2361 in_char = wgetch(stdscr);
2362 #ifdef DEBUG
2363 fprintf(stderr, "back in GetKey()\n");
2364 fflush(stderr);
2365 #endif /* DEBUG */
2366 if (in_char != -1)
2367 {
2368 string[Count++] = in_char;
2369 string[Count] = '\0';
2370 St_point = KEY_TOS;
2371 while ((St_point != NULL) && (!Found))
2372 {
2373 if (!strcmp(string, St_point->element->string))
2374 Found = TRUE;
2375 else
2376 St_point = St_point->next;
2377 }
2378 }
2379 }
2380 #ifndef BSD_SELECT
2381 if (!Time_Out)
2382 value = alarm(0);
2383 #endif /* BSD_SELECT */
2384 #ifdef SYS5
2385 /* value = ioctl(0, TCSETA, &Terminal);*/
2386 #else
2387 value = ioctl(0, TIOCSETP, &Terminal);
2388 /* value = fcntl(0, F_SETFL, old_arg);*/
2389 #endif
2390 Noblock = FALSE;
2391 if (Found)
2392 {
2393 return(St_point->element->value);
2394 }
2395 else
2396 {
2397 while (Count > 1)
2398 {
2399 if ((string[--Count] != -1) &&
2400 ((unsigned char) (string[Count]) != 255))
2401 {
2402 #ifdef DIAG
2403 fprintf(stderr, "ungetting character %d\n", string[Count]);fflush(stdout);
2404 #endif
2405 ungetch(string[Count]);
2406 }
2407 }
2408 return(first_char);
2409 }
2410 }
2411
2412 void
waddch(window,c)2413 waddch(window, c) /* output the character in the specified window */
2414 WINDOW *window;
2415 int c;
2416 {
2417 int column, j;
2418 int shift; /* number of spaces to shift if a tab */
2419 struct _line *tmpline;
2420
2421 #ifdef DIAG
2422 /*printf("starting waddch \n");fflush(stdout);*/
2423 #endif
2424 column = window->LX;
2425 if (c == '\t')
2426 {
2427 shift = (column + 1) % 8;
2428 if (shift == 0)
2429 shift++;
2430 else
2431 shift = 9 - shift;
2432 while (shift > 0)
2433 {
2434 shift--;
2435 waddch(window, ' ');
2436 }
2437 }
2438 else if ((column < window->Num_cols) && (window->LY < window->Num_lines))
2439 {
2440 if ((c == '~') && (Booleans[hz__]))
2441 c = '@';
2442
2443 if (( c != '\b') && (c != '\n') && (c != '\r'))
2444 {
2445 tmpline = window->line_array[window->LY];
2446 tmpline->row[column] = c;
2447 tmpline->attributes[column] = window->Attrib;
2448 tmpline->changed = TRUE;
2449 if (column >= tmpline->last_char)
2450 {
2451 if (column > tmpline->last_char)
2452 for (j = tmpline->last_char; j < column; j++)
2453 {
2454 tmpline->row[j] = ' ';
2455 tmpline->attributes[j] = '\0';
2456 }
2457 tmpline->row[column + 1] = '\0';
2458 tmpline->attributes[column + 1] = '\0';
2459 tmpline->last_char = column + 1;
2460 }
2461 }
2462 if (c == '\n')
2463 {
2464 wclrtoeol(window);
2465 window->LX = window->Num_cols;
2466 }
2467 else if (c == '\r')
2468 window->LX = 0;
2469 else if (c == '\b')
2470 window->LX--;
2471 else
2472 window->LX++;
2473 }
2474 if (window->LX >= window->Num_cols)
2475 {
2476 window->LX = 0;
2477 window->LY++;
2478 if (window->LY >= window->Num_lines)
2479 {
2480 window->LY = window->Num_lines - 1;
2481 /* window->LY = row;
2482 wmove(window, 0, 0);
2483 wdeleteln(window);
2484 wmove(window, row, 0);*/
2485 }
2486 }
2487 window->SCROLL_CLEAR = CHANGE;
2488 }
2489
2490 void
winsertln(window)2491 winsertln(window) /* insert a blank line into the specified window */
2492 WINDOW *window;
2493 {
2494 int row, column;
2495 struct _line *tmp;
2496 struct _line *tmp1;
2497
2498 window->scroll_down += 1;
2499 window->SCROLL_CLEAR = SCROLL;
2500 column = window->LX;
2501 row = window->LY;
2502 for (row = 0, tmp = window->first_line; (row < window->Num_lines) && (tmp->next_screen != NULL); row++)
2503 tmp = tmp->next_screen;
2504 if (tmp->prev_screen != NULL)
2505 tmp->prev_screen->next_screen = NULL;
2506 tmp1 = tmp;
2507 clear_line(tmp1, 0, window->Num_cols);
2508 tmp1->number = -1;
2509 for (row = 0, tmp = window->first_line; (row < window->LY) && (tmp->next_screen != NULL); row++)
2510 tmp = tmp->next_screen;
2511 if ((window->LY == (window->Num_lines - 1)) && (window->Num_lines > 1))
2512 {
2513 tmp1->next_screen = tmp->next_screen;
2514 tmp->next_screen = tmp1;
2515 tmp->changed = TRUE;
2516 tmp->next_screen->prev_screen = tmp;
2517 }
2518 else if (window->Num_lines > 1)
2519 {
2520 if (tmp->prev_screen != NULL)
2521 tmp->prev_screen->next_screen = tmp1;
2522 tmp1->prev_screen = tmp->prev_screen;
2523 tmp->prev_screen = tmp1;
2524 tmp1->next_screen = tmp;
2525 tmp->changed = TRUE;
2526 tmp->scroll = DOWN;
2527 }
2528 if (window->LY == 0)
2529 window->first_line = tmp1;
2530
2531 for (row = 0, tmp1 = window->first_line;
2532 row < window->Num_lines; row++)
2533 {
2534 window->line_array[row] = tmp1;
2535 tmp1 = tmp1->next_screen;
2536 }
2537 }
2538
2539 void
wdeleteln(window)2540 wdeleteln(window) /* delete a line in the specified window */
2541 WINDOW *window;
2542 {
2543 int row, column;
2544 struct _line *tmp;
2545 struct _line *tmpline;
2546
2547 if (window->Num_lines > 1)
2548 {
2549 window->scroll_up += 1;
2550 window->SCROLL_CLEAR = SCROLL;
2551 column = window->LX;
2552 row = window->LY;
2553 for (row = 0, tmp = window->first_line; row < window->LY; row++)
2554 tmp = tmp->next_screen;
2555 if (window->LY == 0)
2556 window->first_line = tmp->next_screen;
2557 if (tmp->prev_screen != NULL)
2558 tmp->prev_screen->next_screen = tmp->next_screen;
2559 if (tmp->next_screen != NULL)
2560 {
2561 tmp->next_screen->changed = TRUE;
2562 tmp->next_screen->scroll = UP;
2563 tmp->next_screen->prev_screen = tmp->prev_screen;
2564 }
2565 tmpline = tmp;
2566 clear_line(tmpline, 0, window->Num_cols);
2567 tmpline->number = -1;
2568 for (row = 0, tmp = window->first_line; tmp->next_screen != NULL; row++)
2569 tmp = tmp->next_screen;
2570 if (tmp != NULL)
2571 {
2572 tmp->next_screen = tmpline;
2573 tmp->next_screen->prev_screen = tmp;
2574 tmp->changed = TRUE;
2575 tmp = tmp->next_screen;
2576 }
2577 else
2578 tmp = tmpline;
2579 tmp->next_screen = NULL;
2580
2581 for (row = 0, tmp = window->first_line; row < window->Num_lines; row++)
2582 {
2583 window->line_array[row] = tmp;
2584 tmp = tmp->next_screen;
2585 }
2586 }
2587 else
2588 {
2589 clear_line(window->first_line, 0, window->Num_cols);
2590 }
2591 }
2592
2593 void
wclrtobot(window)2594 wclrtobot(window) /* delete from current position to end of the window */
2595 WINDOW *window;
2596 {
2597 int row, column;
2598 struct _line *tmp;
2599
2600 window->SCROLL_CLEAR |= CLEAR;
2601 column = window->LX;
2602 row = window->LY;
2603 for (row = 0, tmp = window->first_line; row < window->LY; row++)
2604 tmp = tmp->next_screen;
2605 clear_line(tmp, column, window->Num_cols);
2606 for (row = (window->LY + 1); row < window->Num_lines; row++)
2607 {
2608 tmp = tmp->next_screen;
2609 clear_line(tmp, 0, window->Num_cols);
2610 }
2611 wmove(window, row, column);
2612 }
2613
2614 void
wstandout(window)2615 wstandout(window) /* begin standout mode in window */
2616 WINDOW *window;
2617 {
2618 if (Numbers[sg__] < 1) /* if not magic cookie glitch */
2619 window->Attrib |= A_STANDOUT;
2620 }
2621
2622 void
wstandend(window)2623 wstandend(window) /* end standout mode in window */
2624 WINDOW *window;
2625 {
2626 window->Attrib &= ~A_STANDOUT;
2627 }
2628
2629 void
waddstr(window,string)2630 waddstr(window, string) /* write 'string' in window */
2631 WINDOW *window;
2632 char *string;
2633 {
2634 char *wstring;
2635
2636 for (wstring = string; *wstring != '\0'; wstring++)
2637 waddch(window, *wstring);
2638 }
2639
2640 void
clearok(window,flag)2641 clearok(window, flag) /* erase screen and redraw at next refresh */
2642 WINDOW *window;
2643 int flag;
2644 {
2645 Repaint_screen = TRUE;
2646 }
2647
2648
2649 void
echo()2650 echo() /* turn on echoing */
2651 {
2652 int value;
2653
2654 #ifdef SYS5
2655 Terminal.c_lflag |= ECHO; /* enable echo */
2656 value = ioctl(0, TCSETA, &Terminal); /* set characteristics */
2657 #else
2658 Terminal.sg_flags |= ECHO; /* enable echo */
2659 value = ioctl(0, TIOCSETP, &Terminal); /* set characteristics */
2660 #endif
2661 }
2662
2663 void
noecho()2664 noecho() /* turn off echoing */
2665 {
2666 int value;
2667
2668 #ifdef SYS5
2669 Terminal.c_lflag &= ~ECHO; /* disable echo */
2670 value = ioctl(0, TCSETA, &Terminal); /* set characteristics */
2671 #else
2672 Terminal.sg_flags &= ~ECHO; /* disable echo */
2673 value = ioctl(0, TIOCSETP, &Terminal); /* set characteristics */
2674 #endif
2675 }
2676
2677 void
raw()2678 raw() /* set to read characters immediately */
2679 {
2680 int value;
2681
2682 #ifdef SYS5
2683 Intr = Terminal.c_cc[VINTR]; /* get the interrupt character */
2684 Terminal.c_lflag &= ~ICANON; /* disable canonical operation */
2685 Terminal.c_lflag &= ~ISIG; /* disable signal checking */
2686 #ifdef FLUSHO
2687 Terminal.c_lflag &= ~FLUSHO;
2688 #endif
2689 #ifdef PENDIN
2690 Terminal.c_lflag &= ~PENDIN;
2691 #endif
2692 #ifdef IEXTEN
2693 Terminal.c_lflag &= ~IEXTEN;
2694 #endif
2695 Terminal.c_cc[VMIN] = 1; /* minimum of one character */
2696 Terminal.c_cc[VTIME] = 0; /* timeout value */
2697 Terminal.c_cc[VINTR] = 0; /* eliminate interrupt */
2698 value = ioctl(0, TCSETA, &Terminal); /* set characteristics */
2699 #else
2700 Terminal.sg_flags |= RAW; /* enable raw mode */
2701 value = ioctl(0, TIOCSETP, &Terminal); /* set characteristics */
2702 #endif
2703 }
2704
2705 void
noraw()2706 noraw() /* set to normal character read mode */
2707 {
2708 int value;
2709
2710 #ifdef SYS5
2711 Terminal.c_lflag |= ICANON; /* enable canonical operation */
2712 Terminal.c_lflag |= ISIG; /* enable signal checking */
2713 Terminal.c_cc[VEOF] = 4; /* EOF character = 4 */
2714 Terminal.c_cc[VEOL] = '\0'; /* EOL = 0 */
2715 Terminal.c_cc[VINTR] = Intr; /* reset interrupt char */
2716 value = ioctl(0, TCSETA, &Terminal); /* set characteristics */
2717 #else
2718 Terminal.sg_flags &= ~RAW; /* disable raw mode */
2719 value = ioctl(0, TIOCSETP, &Terminal); /* set characteristics */
2720 /* old_arg = fcntl(0, F_GETFL, 0);
2721 value = fcntl(0, F_SETFL, old_arg & ~FNDELAY);*/
2722 #endif
2723 }
2724
2725 void
nl()2726 nl()
2727 {
2728 int value;
2729
2730 #ifdef SYS5
2731 Terminal.c_iflag |= ICRNL; /* enable carriage-return to line-feed mapping */
2732 value = ioctl(0, TCSETA, &Terminal); /* set characteristics */
2733 #endif
2734 }
2735
2736 void
nonl()2737 nonl()
2738 {
2739 int value;
2740
2741 #ifdef SYS5
2742 Terminal.c_iflag &= ~ICRNL; /* disable carriage-return to line-feed mapping */
2743 Terminal.c_iflag &= ~IGNCR; /* do not ignore carriage-return */
2744 value = ioctl(0, TCSETA, &Terminal); /* set characteristics */
2745 #endif
2746 }
2747
2748 void
saveterm()2749 saveterm()
2750 {
2751 }
2752
2753 void
fixterm()2754 fixterm()
2755 {
2756 }
2757
2758 void
resetterm()2759 resetterm()
2760 {
2761 }
2762
2763 void
nodelay(window,flag)2764 nodelay(window, flag)
2765 WINDOW *window;
2766 int flag;
2767 {
2768 }
2769
2770 void
idlok(window,flag)2771 idlok(window, flag)
2772 WINDOW *window;
2773 int flag;
2774 {
2775 }
2776
2777 void
keypad(window,flag)2778 keypad(window, flag)
2779 WINDOW *window;
2780 int flag;
2781 {
2782 if (flag)
2783 String_Out(String_table[ks__], NULL, 0);
2784 else
2785 String_Out(String_table[ke__], NULL, 0);
2786 }
2787
2788 void
savetty()2789 savetty() /* save current tty stats */
2790 {
2791 int value;
2792
2793 #ifdef SYS5
2794 value = ioctl(0, TCGETA, &Saved_tty); /* set characteristics */
2795 #else
2796 value = ioctl(0, TIOCGETP, &Saved_tty); /* set characteristics */
2797 #endif
2798 }
2799
2800 void
resetty()2801 resetty() /* restore previous tty stats */
2802 {
2803 int value;
2804
2805 #ifdef SYS5
2806 value = ioctl(0, TCSETA, &Saved_tty); /* set characteristics */
2807 #else
2808 value = ioctl(0, TIOCSETP, &Saved_tty); /* set characteristics */
2809 #endif
2810 }
2811
2812 void
endwin()2813 endwin() /* end windows */
2814 {
2815 keypad(stdscr, FALSE);
2816 initialized = FALSE;
2817 delwin(curscr);
2818 delwin(virtual_scr);
2819 delwin(stdscr);
2820 #ifndef SYS5
2821 {
2822 int old_arg, value;
2823 /* old_arg = fcntl(0, F_GETFL, 0);
2824 value = fcntl(0, F_SETFL, old_arg & ~FNDELAY);*/
2825 }
2826 #endif
2827 }
2828
2829 void
delwin(window)2830 delwin(window) /* delete the window structure */
2831 WINDOW *window;
2832 {
2833 int i;
2834
2835 for (i = 1; (i < window->Num_lines) && (window->first_line->next_screen != NULL); i++)
2836 {
2837 window->first_line = window->first_line->next_screen;
2838 free(window->first_line->prev_screen->row);
2839 free(window->first_line->prev_screen->attributes);
2840 free(window->first_line->prev_screen);
2841 }
2842 if (window == last_window_refreshed)
2843 last_window_refreshed = 0;
2844 if (window->first_line != NULL)
2845 {
2846 free(window->first_line->row);
2847 free(window->first_line->attributes);
2848 free(window->first_line);
2849 free(window);
2850 }
2851 }
2852
2853 #ifndef __STDC__
2854 void
wprintw(va_alist)2855 wprintw(va_alist)
2856 va_dcl
2857 #else /* __STDC__ */
2858 void
2859 wprintw(WINDOW *window, const char *format, ...)
2860 #endif /* __STDC__ */
2861 {
2862 #ifndef __STDC__
2863 WINDOW *window;
2864 char *format;
2865 va_list ap;
2866 #else
2867 va_list ap;
2868 #endif
2869 int value;
2870 char *fpoint;
2871 char *wtemp;
2872
2873 #ifndef __STDC__
2874 va_start(ap);
2875 window = va_arg(ap, WINDOW *);
2876 format = va_arg(ap, char *);
2877 #else /* __STDC__ */
2878 va_start(ap, format);
2879 #endif /* __STDC__ */
2880
2881 fpoint = (char *) format;
2882 while (*fpoint != '\0')
2883 {
2884 if (*fpoint == '%')
2885 {
2886 fpoint++;
2887 if (*fpoint == 'd')
2888 {
2889 value = va_arg(ap, int);
2890 iout(window, value);
2891 }
2892 else if (*fpoint == 'c')
2893 {
2894 value = va_arg(ap, int);
2895 waddch(window, value);
2896 }
2897 else if (*fpoint == 's')
2898 {
2899 wtemp = va_arg(ap, char *);
2900 waddstr(window, wtemp);
2901 }
2902 fpoint++;
2903 }
2904 else if (*fpoint == '\\')
2905 {
2906 fpoint++;
2907 if (*fpoint == 'n')
2908 waddch(window, '\n');
2909 else if ((*fpoint >= '0') && (*fpoint <= '9'))
2910 {
2911 value = 0;
2912 while ((*fpoint >= '0') && (*fpoint <= '9'))
2913 {
2914 value = (value * 8) + (*fpoint - '0');
2915 fpoint++;
2916 }
2917 waddch(window, value);
2918 }
2919 fpoint++;
2920 }
2921 else
2922 waddch(window, *fpoint++);
2923 }
2924 #ifdef __STDC__
2925 va_end(ap);
2926 #endif /* __STDC__ */
2927 }
2928
2929 void
iout(window,value)2930 iout(window, value) /* output characters */
2931 WINDOW *window;
2932 int value;
2933 {
2934 int i;
2935
2936 if ((i = value / 10) != 0)
2937 iout(window, i);
2938 waddch(window, ((value % 10) + '0'));
2939 }
2940
2941 int
Comp_line(line1,line2)2942 Comp_line(line1, line2) /* compare lines */
2943 struct _line *line1;
2944 struct _line *line2;
2945 {
2946 int count1;
2947 int i;
2948 char *att1, *att2;
2949 char *c1, *c2;
2950
2951 if (line1->last_char != line2->last_char)
2952 return(2);
2953
2954 c1 = line1->row;
2955 c2 = line2->row;
2956 att1 = line1->attributes;
2957 att2 = line2->attributes;
2958 i = 0;
2959 while ((c1[i] != '\0') && (c2[i] != '\0') && (c1[i] == c2[i]) && (att1[i] == att2[i]))
2960 i++;
2961 count1 = i + 1;
2962 if ((count1 == 1) && (c1[i] == '\0') && (c2[i] == '\0'))
2963 count1 = 0; /* both lines blank */
2964 else if ((c1[i] == '\0') && (c2[i] == '\0'))
2965 count1 = -1; /* equal */
2966 else
2967 count1 = 1; /* lines unequal */
2968 return(count1);
2969 }
2970
2971 struct _line *
Insert_line(row,end_row,window)2972 Insert_line(row, end_row, window) /* insert line into screen */
2973 int row;
2974 int end_row;
2975 WINDOW *window;
2976 {
2977 int i;
2978 struct _line *tmp;
2979 struct _line *tmp1;
2980
2981 for (i = 0, tmp = curscr->first_line; i < window->SR; i++)
2982 tmp = tmp->next_screen;
2983 if ((end_row + window->SR) == 0)
2984 curscr->first_line = curscr->first_line->next_screen;
2985 top_of_win = tmp;
2986 /*
2987 | find bottom line to delete
2988 */
2989 for (i = 0, tmp = top_of_win; (tmp->next_screen != NULL) && (i < end_row); i++)
2990 tmp = tmp->next_screen;
2991 if (tmp->prev_screen != NULL)
2992 tmp->prev_screen->next_screen = tmp->next_screen;
2993 if (tmp->next_screen != NULL)
2994 tmp->next_screen->prev_screen = tmp->prev_screen;
2995 tmp1 = tmp;
2996 /*
2997 | clear deleted line
2998 */
2999 clear_line(tmp, 0, window->Num_cols);
3000 tmp1->number = -1;
3001 for (i = 0, tmp = curscr->first_line; (tmp->next_screen != NULL) && (i < window->SR); i++)
3002 tmp = tmp->next_screen;
3003 top_of_win = tmp;
3004 for (i = 0, tmp = top_of_win; i < row; i++)
3005 tmp = tmp->next_screen;
3006 if ((tmp->prev_screen != NULL) && (window->Num_lines > 0))
3007 tmp->prev_screen->next_screen = tmp1;
3008 tmp1->prev_screen = tmp->prev_screen;
3009 tmp->prev_screen = tmp1;
3010 tmp1->next_screen = tmp;
3011 if ((row + window->SR) == 0)
3012 curscr->first_line = tmp1;
3013 if (tmp1->next_screen != NULL)
3014 tmp1 = tmp1->next_screen;
3015
3016 if ((!String_table[cs__]) && (end_row < window->Num_lines))
3017 {
3018 Position(window, (window->SR + end_row), 0);
3019 String_Out(String_table[dl__], NULL, 0);
3020 }
3021 Position(window, (window->SR + row), 0);
3022 if (String_table[al__] != NULL)
3023 String_Out(String_table[al__], NULL, 0);
3024 else
3025 String_Out(String_table[sr__], NULL, 0);
3026
3027 for (i = 0, top_of_win = curscr->first_line; (top_of_win->next_screen != NULL) && (i < window->SR); i++)
3028 top_of_win = top_of_win->next_screen;
3029 return(tmp1);
3030 }
3031
3032
3033 struct _line *
Delete_line(row,end_row,window)3034 Delete_line(row, end_row, window) /* delete a line on screen */
3035 int row;
3036 int end_row;
3037 WINDOW *window;
3038 {
3039 int i;
3040 struct _line *tmp;
3041 struct _line *tmp1;
3042 struct _line *tmp2;
3043
3044 i = 0;
3045 tmp = curscr->first_line;
3046 while (i < window->SR)
3047 {
3048 i++;
3049 tmp = tmp->next_screen;
3050 }
3051 /*
3052 | find line to delete
3053 */
3054 top_of_win = tmp;
3055 if ((row + window->SR) == 0)
3056 curscr->first_line = top_of_win->next_screen;
3057 for (i = 0, tmp = top_of_win; i < row; i++)
3058 tmp = tmp->next_screen;
3059 if (tmp->prev_screen != NULL)
3060 tmp->prev_screen->next_screen = tmp->next_screen;
3061 if (tmp->next_screen != NULL)
3062 tmp->next_screen->prev_screen = tmp->prev_screen;
3063 tmp2 = tmp->next_screen;
3064 tmp1 = tmp;
3065 /*
3066 | clear deleted line
3067 */
3068 clear_line(tmp1, 0, window->Num_cols);
3069 tmp1->number = -1;
3070 /*
3071 | find location to insert deleted line
3072 */
3073 for (i = 0, tmp = curscr->first_line; (tmp->next_screen != NULL) && (i < window->SR); i++)
3074 tmp = tmp->next_screen;
3075 top_of_win = tmp;
3076 for (i = 0, tmp = top_of_win; (i < end_row) && (tmp->next_screen != NULL); i++)
3077 tmp = tmp->next_screen;
3078 tmp1->next_screen = tmp;
3079 tmp1->prev_screen = tmp->prev_screen;
3080 if (tmp1->prev_screen != NULL)
3081 tmp1->prev_screen->next_screen = tmp1;
3082 tmp->prev_screen = tmp1;
3083
3084 Position(window, (window->SR + row), 0);
3085 String_Out(String_table[dl__], NULL, 0);
3086 if ((!String_table[cs__]) && (end_row < window->Num_lines))
3087 {
3088 Position(window, (window->SR + end_row), 0);
3089 String_Out(String_table[al__], NULL, 0);
3090 }
3091 else if ((String_table[cs__] != NULL) && (String_table[dl__] == NULL))
3092 {
3093 Position(window, (window->SR + end_row), 0);
3094 putchar('\n');
3095 }
3096
3097 if (row == (window->Num_lines-1))
3098 tmp2 = tmp1;
3099 if ((row + window->SR) == 0)
3100 curscr->first_line = top_of_win = tmp2;
3101 return(tmp2);
3102 }
3103
3104 void
CLEAR_TO_EOL(window,row,column)3105 CLEAR_TO_EOL(window, row, column)
3106 WINDOW *window;
3107 int row, column;
3108 {
3109 int x, y;
3110 struct _line *tmp1;
3111
3112 for (y = 0, tmp1 = curscr->first_line; (y < (window->SR+row)) && (tmp1->next_screen != NULL); y++)
3113 tmp1 = tmp1->next_screen;
3114 for (x = column; x<window->Num_cols; x++)
3115 {
3116 tmp1->row[x] = ' ';
3117 tmp1->attributes[x] = '\0';
3118 }
3119 tmp1->row[column] = '\0';
3120 tmp1->last_char = column;
3121 if (column < COLS)
3122 {
3123 if (STAND)
3124 {
3125 STAND = FALSE;
3126 Position(window, row, column);
3127 attribute_off();
3128 }
3129 if (String_table[ce__] != NULL)
3130 String_Out(String_table[ce__], NULL, 0);
3131 else
3132 {
3133 for (x = column; x < window->Num_cols; x++)
3134 putchar(' ');
3135 Curr_x = x;
3136 }
3137 }
3138 }
3139
3140 int
check_delete(window,line,offset,pointer_new,pointer_old)3141 check_delete(window, line, offset, pointer_new, pointer_old)
3142 WINDOW *window;
3143 int line, offset;
3144 struct _line *pointer_new, *pointer_old;
3145 {
3146 int end_old;
3147 int end_new;
3148 int k;
3149 int changed;
3150 char *old_lin;
3151 char *new_lin;
3152 char *old_att;
3153 char *new_att;
3154
3155 changed = FALSE;
3156 new_lin = pointer_new->row;
3157 new_att = pointer_new->attributes;
3158 old_lin = pointer_old->row;
3159 old_att = pointer_old->attributes;
3160 end_old = end_new = offset;
3161 while (((new_lin[end_new] != old_lin[end_old]) || (new_att[end_new] != old_att[end_old])) && (old_lin[end_old] != '\0') && (new_lin[end_old] != '\0'))
3162 end_old++;
3163 if (old_lin[end_old] != '\0')
3164 {
3165 k = 0;
3166 while ((old_lin[end_old+k] == new_lin[end_new+k]) && (new_att[end_new+k] == old_att[end_old+k]) && (new_lin[end_new+k] != '\0') && (old_lin[end_old+k] != '\0') && (k < 10))
3167 k++;
3168 if ((k > 8) || ((new_lin[end_new+k] == '\0') && (k != 0)))
3169 {
3170 if (new_lin[end_new+k] == '\0')
3171 {
3172 Position(window, line, (end_new+k));
3173 CLEAR_TO_EOL(window, line, (end_new+k));
3174 }
3175 Position(window, line, offset);
3176 for (k = offset; k < end_old; k++)
3177 Char_del(old_lin, old_att, offset, window->Num_cols);
3178 while ((old_lin[offset] != '\0') && (offset < COLS))
3179 offset++;
3180 pointer_old->last_char = offset;
3181 changed = TRUE;
3182 }
3183 }
3184 return(changed);
3185 }
3186
3187 /*
3188 | Check if characters were inserted in the middle of a line, and if
3189 | so, insert them.
3190 */
3191
3192 int
check_insert(window,line,offset,pointer_new,pointer_old)3193 check_insert(window, line, offset, pointer_new, pointer_old)
3194 WINDOW *window;
3195 int line, offset;
3196 struct _line *pointer_new, *pointer_old;
3197 {
3198 int changed;
3199 int end_old, end_new;
3200 int k;
3201 int same = FALSE;
3202 int old_off;
3203 int insert;
3204 char *old_lin;
3205 char *new_lin;
3206 char *old_att;
3207 char *new_att;
3208
3209 changed = FALSE;
3210 new_lin = pointer_new->row;
3211 new_att = pointer_new->attributes;
3212 old_lin = pointer_old->row;
3213 old_att = pointer_old->attributes;
3214 end_old = end_new = offset;
3215 while (((new_lin[end_new] != old_lin[end_old]) || (new_att[end_new] != old_att[end_old])) && (new_lin[end_new] != '\0') && (old_lin[end_new] != '\0'))
3216 end_new++;
3217 if (new_lin[end_new] != '\0')
3218 {
3219 k = 0;
3220 while ((old_lin[end_old+k] == new_lin[end_new+k]) && (old_att[end_old+k] == new_att[end_new+k]) && (new_lin[end_new+k] != '\0') && (old_lin[end_old+k] != '\0') && (k < 10))
3221 k++;
3222 /*
3223 | check for commonality between rest of lines (are the old
3224 | and new lines the same, except for a chunk in the middle?)
3225 | if the rest of the lines are common, do not insert text
3226 */
3227 old_off = end_new;
3228 while ((old_lin[old_off] != '\0') && (new_lin[old_off] != '\0') && (old_lin[old_off] == new_lin[old_off]) && (old_att[old_off] == new_att[old_off]))
3229 old_off++;
3230 if ((old_lin[old_off] == new_lin[old_off]) && (old_att[old_off] == new_att[old_off]))
3231 same = TRUE;
3232 if ((!same) && ((k > 8) || ((new_lin[end_new+k] == '\0') && (k != 0))))
3233 {
3234 Position(window, line, offset);
3235 insert = FALSE;
3236 if (String_table[ic__] == NULL)
3237 {
3238 String_Out(String_table[im__], NULL, 0);
3239 insert = TRUE;
3240 }
3241 for (k = offset; k < end_new; k++)
3242 {
3243 if (!insert)
3244 String_Out(String_table[ic__], NULL, 0);
3245 Char_ins(old_lin, old_att, new_lin[k], new_att[k], k, window->Num_cols);
3246 }
3247 if (insert)
3248 String_Out(String_table[ei__], NULL, 0);
3249 while ((old_lin[offset] != '\0') && (offset < COLS))
3250 offset++;
3251 pointer_old->last_char = offset;
3252 changed = TRUE;
3253 }
3254 }
3255 return(changed);
3256 }
3257
3258 void
doupdate()3259 doupdate()
3260 {
3261 WINDOW *window;
3262 int similar;
3263 int diff;
3264 int begin_old, begin_new;
3265 int end_old, end_new;
3266 int count1, j;
3267 int from_top, tmp_ft, offset;
3268 int changed;
3269 int first_time;
3270 int first_same;
3271 int last_same;
3272 int list[10];
3273 int bottom;
3274
3275 struct _line *curr;
3276 struct _line *virt;
3277 struct _line *old;
3278
3279 struct _line *new;
3280
3281 struct _line *old1, *new1;
3282
3283 char *cur_lin;
3284 char *vrt_lin;
3285 char *cur_att;
3286 char *vrt_att;
3287 char *att1, *att2;
3288 char *c1, *c2;
3289
3290 char NC_chinese = FALSE; /* flag to indicate handling Chinese */
3291
3292 window = virtual_scr;
3293
3294 if ((nc_attributes & A_NC_BIG5) != 0)
3295 NC_chinese = TRUE;
3296
3297 if (Repaint_screen)
3298 {
3299 if (String_table[cl__])
3300 String_Out(String_table[cl__], NULL, 0);
3301 else
3302 {
3303 from_top = 0;
3304 while (from_top < LINES)
3305 {
3306 Position(curscr, from_top, 0);
3307 if (String_table[ce__] != NULL)
3308 String_Out(String_table[ce__], NULL, 0);
3309 else
3310 {
3311 for (j = 0; j < window->Num_cols; j++)
3312 putchar(' ');
3313 }
3314 from_top++;
3315 }
3316 }
3317 for (from_top = 0, curr = curscr->first_line; from_top < curscr->Num_lines; from_top++, curr = curr->next_screen)
3318 {
3319 Position(curscr, from_top, 0);
3320 for (j = 0; (curr->row[j] != '\0') && (j < curscr->Num_cols); j++)
3321 {
3322 Char_out(curr->row[j], curr->attributes[j], curr->row, curr->attributes, j);
3323 }
3324 if (STAND)
3325 {
3326 STAND = FALSE;
3327 Position(curscr, from_top, j);
3328 attribute_off();
3329 }
3330 }
3331 Repaint_screen = FALSE;
3332 }
3333
3334 similar = 0;
3335 diff = FALSE;
3336 top_of_win = curscr->first_line;
3337
3338 for (from_top = 0, curr = top_of_win, virt = window->first_line;
3339 from_top < window->Num_lines; from_top++)
3340 {
3341 virtual_lines[from_top] = TRUE;
3342 if ((similar = Comp_line(curr, virt)) > 0)
3343 {
3344 virtual_lines[from_top] = FALSE;
3345 diff = TRUE;
3346 }
3347 curr = curr->next_screen;
3348 virt = virt->next_screen;
3349 }
3350
3351 from_top = 0;
3352 virt = window->first_line;
3353 curr = top_of_win;
3354 similar = 0;
3355 /*
3356 | if the window has lines that are different, check for scrolling
3357 */
3358 if (diff)
3359 {
3360 last_same = -1;
3361 changed = FALSE;
3362 for (first_same = window->Num_lines;
3363 (first_same > from_top) && (virtual_lines[first_same - 1]);
3364 first_same--)
3365 ;
3366 for (last_same = 0;
3367 (last_same < window->Num_lines) && (virtual_lines[last_same]== FALSE);
3368 last_same++)
3369 ;
3370 while ((from_top < first_same) && nc_scrolling_ability)
3371 /* check entire lines for diffs */
3372 {
3373
3374 if (from_top >= last_same)
3375 {
3376 for (last_same = from_top;
3377 (last_same < window->Num_lines) &&
3378 (virtual_lines[last_same] == FALSE);
3379 last_same++)
3380 ;
3381 }
3382 if (!virtual_lines[from_top])
3383 {
3384 diff = TRUE;
3385 /*
3386 | check for lines deleted (scroll up)
3387 */
3388 for (tmp_ft = from_top+1, old = curr->next_screen;
3389 ((window->scroll_up) && (diff) &&
3390 (tmp_ft < last_same) &&
3391 (!virtual_lines[tmp_ft]));
3392 tmp_ft++)
3393 {
3394 if ((Comp_line(old, virt) == -1) && (!virtual_lines[from_top]))
3395 {
3396 /*
3397 | Find the bottom of the
3398 | area that should be
3399 | scrolled.
3400 */
3401 for (bottom = tmp_ft, old1 = old,
3402 new1 = virt, count1 = 0;
3403 (bottom < window->Num_lines) &&
3404 (Comp_line(old1, new1) <= 0);
3405 bottom++, old1 = old1->next_screen,
3406 new1 = new1->next_screen,
3407 count1++)
3408 ;
3409 if (count1 > 3)
3410 {
3411 if (String_table[cs__]) /* scrolling region */
3412 {
3413 list[1] = from_top;
3414 list[0] = min((bottom - 1), (window->Num_lines - 1));
3415 String_Out(String_table[cs__], list, 2);
3416 Curr_y = Curr_x = -1;
3417 }
3418
3419 for (offset = (tmp_ft - from_top); (offset > 0); offset--)
3420 {
3421 old = Delete_line(from_top, min((bottom - 1), (window->Num_lines - 1)), window);
3422 diff = FALSE;
3423 }
3424
3425 if (String_table[cs__]) /* scrolling region */
3426 {
3427 list[1] = 0;
3428 list[0] = LINES - 1;
3429 String_Out(String_table[cs__], list, 2);
3430 Curr_y = Curr_x = -1;
3431 }
3432
3433 top_of_win = curscr->first_line;
3434 curr = top_of_win;
3435 for (offset = 0; offset < from_top; offset++)
3436 curr = curr->next_screen;
3437 for (offset = from_top, old=curr, new=virt;
3438 offset < window->Num_lines;
3439 old=old->next_screen, new=new->next_screen,
3440 offset++)
3441 {
3442 similar = Comp_line(old, new);
3443 virtual_lines[offset] = (similar > 0 ? FALSE : TRUE);
3444 }
3445 }
3446 }
3447 else
3448 old = old->next_screen;
3449 }
3450 /*
3451 | check for lines inserted (scroll down)
3452 */
3453 for (tmp_ft = from_top-1, old = curr->prev_screen;
3454 ((window->scroll_down) && (tmp_ft >= 0) &&
3455 (diff) &&
3456 (!virtual_lines[tmp_ft]));
3457 tmp_ft--)
3458 {
3459 if (Comp_line(old, virt) == -1)
3460 {
3461 /*
3462 | Find the bottom of the
3463 | area that should be
3464 | scrolled.
3465 */
3466 for (bottom = from_top, old1 = old,
3467 new1 = virt, count1 = 0;
3468 (bottom < window->Num_lines) &&
3469 (Comp_line(old1, new1) <= 0);
3470 bottom++, old1 = old1->next_screen,
3471 new1 = new1->next_screen,
3472 count1++)
3473 ;
3474 if (count1 > 3)
3475 {
3476 if (String_table[cs__]) /* scrolling region */
3477 {
3478 list[1] = tmp_ft;
3479 list[0] = min((bottom - 1), (window->Num_lines - 1));
3480 String_Out(String_table[cs__], list, 2);
3481 Curr_y = Curr_x = -1;
3482 }
3483
3484 for (offset = (from_top - tmp_ft); (offset > 0); offset--)
3485 {
3486 old = Insert_line(tmp_ft, min((bottom - 1), (window->Num_lines -1)), window);
3487 diff = FALSE;
3488 }
3489
3490 if (String_table[cs__]) /* scrolling region */
3491 {
3492 list[1] = 0;
3493 list[0] = LINES - 1;
3494 String_Out(String_table[cs__], list, 2);
3495 Curr_y = Curr_x = -1;
3496 }
3497
3498 top_of_win = curscr->first_line;
3499 curr = top_of_win;
3500 for (offset = 0; offset < from_top; offset++)
3501 curr = curr->next_screen;
3502 for (offset = from_top, old=curr, new=virt;
3503 offset < window->Num_lines;
3504 old=old->next_screen, new=new->next_screen,
3505 offset++)
3506 {
3507 similar = Comp_line(old, new);
3508 virtual_lines[offset] = (similar > 0 ? FALSE : TRUE);
3509 }
3510 }
3511 }
3512 else
3513 old = old->prev_screen;
3514 }
3515 }
3516 from_top++;
3517 curr = curr->next_screen;
3518 virt = virt->next_screen;
3519 }
3520 }
3521
3522
3523 /*
3524 | Scrolling done, now need to insert, delete, or modify text
3525 | within lines.
3526 */
3527
3528 for (from_top = 0, curr = curscr->first_line; from_top < window->SR; from_top++)
3529 curr = curr->next_screen;
3530 top_of_win = curr;
3531 for (from_top = 0, curr = top_of_win, virt = window->first_line; from_top < window->Num_lines; from_top++, curr = curr->next_screen, virt = virt->next_screen)
3532 {
3533
3534 /*
3535 | If either 'insert mode' or 'insert char' are
3536 | available, enter the following 'if' statement,
3537 | else, need to simply rewrite the contents of the line
3538 | at the point where the contents of the line change.
3539 */
3540
3541 if (((String_table[ic__]) || (String_table[im__])) &&
3542 (String_table[dc__]) && (curr->row[0] != '\0') &&
3543 (!NC_chinese))
3544 {
3545 j = 0;
3546 first_time = TRUE;
3547 vrt_lin = virt->row;
3548 vrt_att = virt->attributes;
3549 cur_lin = curr->row;
3550 cur_att = curr->attributes;
3551 while ((vrt_lin[j] != '\0') && (j < window->Num_cols))
3552 {
3553 if ((STAND) && (Booleans[xs__]))
3554 {
3555 while ((vrt_lin[j] == cur_lin[j]) && (vrt_att[j] == cur_att[j]) && (vrt_lin[j] != '\0') && (vrt_att[j]))
3556 j++;
3557 if ((STAND) && (!vrt_att[j]))
3558 {
3559 STAND = FALSE;
3560 Position(window, from_top, j);
3561 attribute_off();
3562 attribute_off();
3563 }
3564 }
3565 else
3566 {
3567 while ((vrt_lin[j] == cur_lin[j]) && (vrt_att[j] == cur_att[j]) && (vrt_lin[j] != '\0'))
3568 j++;
3569 }
3570 if ((vrt_att[j] != cur_att[j]) && (cur_att[j]) && (Booleans[xs__]))
3571 {
3572 Position(window, from_top, j);
3573 /* CLEAR_TO_EOL(window, from_top, j);*/
3574 attribute_off();
3575 attribute_off();
3576 }
3577 if (vrt_lin[j] != '\0')
3578 {
3579 begin_new = j;
3580 begin_old = j;
3581 end_old = j;
3582 end_new = j;
3583 if ((first_time) && (virt->changed))
3584 {
3585 if (curr->last_char <= virt->last_char)
3586 changed = check_insert(window, from_top, j, virt, curr);
3587 }
3588 changed = check_delete(window, from_top, j, virt, curr);
3589 first_time = FALSE;
3590 virt->changed = FALSE;
3591 if (!changed)
3592 changed = check_insert(window, from_top, j, virt, curr);
3593 if (((!changed) || (cur_lin[j] != vrt_lin[j]) || (cur_att[j] != vrt_att[j])) && (j < window->Num_cols))
3594 {
3595 if ((vrt_lin[j] == ' ') && (cur_lin[j] == '\0') && (vrt_att[j] == cur_att[j]))
3596 cur_lin[j] = ' ';
3597 else
3598 {
3599 Position(window, from_top, j);
3600 Char_out(vrt_lin[j], vrt_att[j], cur_lin, cur_att, j);
3601 }
3602 }
3603 if ((vrt_lin[j] != '\0'))
3604 j++;
3605 }
3606 if ((STAND) && (!vrt_att[j]))
3607 {
3608 STAND = FALSE;
3609 Position(window, from_top, j);
3610 attribute_off();
3611 }
3612 }
3613 if ((vrt_lin[j] == '\0') && (cur_lin[j] != '\0'))
3614 {
3615 Position(window, from_top, j);
3616 CLEAR_TO_EOL(window, from_top, j);
3617 }
3618 }
3619 else /*if ((similar != -1) && (similar != 0))*/
3620 {
3621 j = 0;
3622 c1 = curr->row;
3623 att1 = curr->attributes;
3624 c2 = virt->row;
3625 att2 = virt->attributes;
3626 while ((j < window->Num_cols) && (c2[j] != '\0'))
3627 {
3628 while ((c1[j] == c2[j]) && (att1[j] == att2[j]) && (j < window->Num_cols) && (c2[j] != '\0'))
3629 j++;
3630
3631 /*
3632 | if previous character is an eight bit
3633 | char, start redraw from that character
3634 */
3635
3636 if ((NC_chinese) && (highbitset(c1[j - 1])))
3637 j--;
3638 begin_old = j;
3639 begin_new = j;
3640 if ((j < window->Num_cols) && (c2[j] != '\0'))
3641 {
3642 Position(window, from_top, begin_old);
3643 CLEAR_TO_EOL(window, from_top, j);
3644 Position(window, from_top, begin_old);
3645 for (j = begin_old; (c2[j] != '\0') && (j < window->Num_cols); j++)
3646 Char_out(c2[j], att2[j], c1, att1, j);
3647 }
3648 }
3649 if ((c2[j] == '\0') && (c1[j] != '\0'))
3650 {
3651 Position(window, from_top, j);
3652 CLEAR_TO_EOL(window, from_top, j);
3653 }
3654 }
3655 if (STAND)
3656 {
3657 STAND = FALSE;
3658 Position(window, from_top, j);
3659 attribute_off();
3660 }
3661 virt->number = from_top;
3662 }
3663 Position(window, window->LY, window->LX);
3664 }
3665
3666 void
Position(window,row,col)3667 Position(window, row, col) /* position the cursor for output on the screen */
3668 WINDOW *window;
3669 int row;
3670 int col;
3671 {
3672 int list[10];
3673 int place;
3674
3675 int pos_row;
3676 int pos_column;
3677
3678 pos_row = row + window->SR;
3679 pos_column = col + window->SC;
3680 if ((pos_row != Curr_y) || (pos_column != Curr_x))
3681 {
3682 if (String_table[cm__] != NULL) /* && (row < window->Num_lines) && (column < window->Num_cols))*/
3683 {
3684 place = 0;
3685 list[place++] = pos_column;
3686 list[place++] = pos_row;
3687 String_Out(String_table[cm__], list, place);
3688 if ((STAND) && (!Booleans[ms__]))
3689 attribute_on();
3690 }
3691 Curr_x = pos_column;
3692 Curr_y = pos_row;
3693 }
3694 }
3695
3696 void
Char_del(line,attrib,offset,maxlen)3697 Char_del(line, attrib, offset, maxlen) /* delete chars from line */
3698 char *line;
3699 char *attrib;
3700 int offset;
3701 int maxlen;
3702 {
3703 int one, two;
3704
3705 for (one = offset, two = offset+1; (line[one] != '\0') && (one < maxlen); one++, two++)
3706 {
3707 line[one] = line[two];
3708 attrib[one] = attrib[two];
3709 }
3710 String_Out(String_table[dc__], NULL, 0);
3711 }
3712
3713 void
Char_ins(line,attrib,newc,newatt,offset,maxlen)3714 Char_ins(line, attrib, newc, newatt, offset, maxlen) /* insert chars in line */
3715 char *line;
3716 char *attrib;
3717 char newc;
3718 char newatt;
3719 int offset;
3720 int maxlen;
3721 {
3722 int one, two;
3723
3724 one = 0;
3725 while ((line[one] != '\0') && (one < (maxlen - 2)))
3726 one++;
3727 for (two = one + 1; (two > offset); one--, two--)
3728 {
3729 line[two] = line[one];
3730 attrib[two] = attrib[one];
3731 }
3732 line[offset] = newc;
3733 attrib[offset] = newatt;
3734 Char_out(newc, newatt, line, attrib, offset);
3735 }
3736
3737 void
attribute_on()3738 attribute_on()
3739 {
3740 if (String_table[sa__])
3741 {
3742 attributes_set[0] = 1;
3743 String_Out(String_table[sa__], attributes_set, 1);
3744 }
3745 else if (String_table[so__])
3746 String_Out(String_table[so__], NULL, 0);
3747 }
3748
3749 void
attribute_off()3750 attribute_off()
3751 {
3752 if (String_table[me__])
3753 String_Out(String_table[me__], NULL, 0);
3754 else if (String_table[sa__])
3755 {
3756 attributes_set[0] = 0;
3757 String_Out(String_table[sa__], attributes_set, 1);
3758 }
3759 else if (String_table[se__])
3760 String_Out(String_table[se__], NULL, 0);
3761 }
3762
3763 void
Char_out(newc,newatt,line,attrib,offset)3764 Char_out(newc, newatt, line, attrib, offset) /* output character with proper attribute */
3765 char newc;
3766 char newatt;
3767 char *line;
3768 char *attrib;
3769 int offset;
3770 {
3771
3772
3773 if ((newatt) && (!STAND))
3774 {
3775 STAND = TRUE;
3776 attribute_on();
3777 }
3778 else if ((STAND) && (!newatt))
3779 {
3780 STAND = FALSE;
3781 attribute_off();
3782 }
3783
3784 if ((newatt) && (STAND) && (Booleans[xs__]))
3785 {
3786 attribute_on();
3787 }
3788
3789 if (!((Curr_y >= (LINES - 1)) && (Curr_x >= (COLS - 1))))
3790 {
3791 putchar(newc);
3792 line[offset] = newc;
3793 attrib[offset] = newatt;
3794 }
3795 Curr_x++;
3796 }
3797
3798 /*
3799 |
3800 | The two routines that follow, nc_setattrib(), nc_clearattrib(), are
3801 | hacks that notify new_curse to handle characters that have the high
3802 | bit set as the first of two bytes of a multi-byte string.
3803 |
3804 */
3805
3806 void
nc_setattrib(flag)3807 nc_setattrib(flag)
3808 int flag;
3809 {
3810 nc_attributes |= flag;
3811 }
3812
3813 void
nc_clearattrib(flag)3814 nc_clearattrib(flag)
3815 int flag;
3816 {
3817 nc_attributes &= ~flag;
3818 }
3819
3820