No empty .Rs/.Re
[netbsd-mini2440.git] / usr.bin / window / ttgeneric.c
blobf9389476f8f3d6b545237a87ce8d8019c5a96d2c
1 /* $NetBSD: ttgeneric.c,v 1.10 2009/04/14 08:50:06 lukem Exp $ */
3 /*
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
35 #include <sys/cdefs.h>
36 #ifndef lint
37 #if 0
38 static char sccsid[] = "@(#)ttgeneric.c 8.1 (Berkeley) 6/6/93";
39 #else
40 __RCSID("$NetBSD: ttgeneric.c,v 1.10 2009/04/14 08:50:06 lukem Exp $");
41 #endif
42 #endif /* not lint */
44 #include <stdlib.h>
45 #include <string.h>
46 #include <termcap.h>
47 #include "ww.h"
48 #include "tt.h"
50 char PC, *BC, *UP;
51 short ospeed;
53 /* normal frame */
54 short gen_frame[16] = {
55 ' ', '|', '-', '+',
56 '|', '|', '+', '+',
57 '-', '+', '-', '+',
58 '+', '+', '+', '+'
61 /* ANSI graphics frame */
62 #define G (WWM_GRP << WWC_MSHIFT)
63 short ansi_frame[16] = {
64 ' ', 'x'|G, 'Q'|G, 'm'|G,
65 'x'|G, 'x'|G, 'l'|G, 't'|G,
66 'q'|G, 'j'|G, 'q'|G, 'v'|G,
67 'k'|G, 'u'|G, 'w'|G, 'n'|G
69 struct tt_str ansi_AS = {
70 "\033(0", 3
73 struct tt_str *gen_PC;
74 struct tt_str *gen_CM;
75 struct tt_str *gen_IM;
76 struct tt_str *gen_IC;
77 struct tt_str *gen_ICn;
78 struct tt_str *gen_IP;
79 struct tt_str *gen_EI;
80 struct tt_str *gen_DC;
81 struct tt_str *gen_DCn;
82 struct tt_str *gen_AL;
83 struct tt_str *gen_ALn;
84 struct tt_str *gen_DL;
85 struct tt_str *gen_DLn;
86 struct tt_str *gen_CE;
87 struct tt_str *gen_CD;
88 struct tt_str *gen_CL;
89 struct tt_str *gen_VS;
90 struct tt_str *gen_VE;
91 struct tt_str *gen_TI;
92 struct tt_str *gen_TE;
93 struct tt_str *gen_SO;
94 struct tt_str *gen_SE;
95 struct tt_str *gen_US;
96 struct tt_str *gen_UE;
97 struct tt_str *gen_LE;
98 struct tt_str *gen_ND;
99 struct tt_str *gen_UP;
100 struct tt_str *gen_DO;
101 struct tt_str *gen_BC;
102 struct tt_str *gen_NL;
103 struct tt_str *gen_CR;
104 struct tt_str *gen_HO;
105 struct tt_str *gen_AS;
106 struct tt_str *gen_AE;
107 struct tt_str *gen_XS;
108 struct tt_str *gen_XE;
109 struct tt_str *gen_SF;
110 struct tt_str *gen_SFn;
111 struct tt_str *gen_SR;
112 struct tt_str *gen_SRn;
113 struct tt_str *gen_CS;
114 char gen_MI;
115 char gen_MS;
116 char gen_AM;
117 char gen_OS;
118 char gen_BS;
119 char gen_DA;
120 char gen_DB;
121 char gen_NS;
122 char gen_XN;
123 int gen_CO;
124 int gen_LI;
125 int gen_UG;
126 int gen_SG;
128 void gen_clear(void);
129 void gen_clreol(void);
130 void gen_clreos(void);
131 void gen_delchar(int);
132 void gen_delline(int);
133 void gen_end(void);
134 void gen_inschar(char);
135 void gen_insline(int);
136 void gen_insspace(int);
137 void gen_move(int, int);
138 void gen_putc(char);
139 void gen_scroll_down(int);
140 void gen_scroll_up(int);
141 void gen_setinsert(char);
142 void gen_setmodes(int);
143 void gen_setscroll(int, int);
144 void gen_start(void);
145 void gen_write(const char *, int);
147 void
148 gen_setinsert(char new)
150 if (new) {
151 if (gen_IM)
152 ttxputs(gen_IM);
153 } else
154 if (gen_EI)
155 ttxputs(gen_EI);
156 tt.tt_insert = new;
159 void
160 gen_setmodes(int new)
162 int diff;
164 diff = new ^ tt.tt_modes;
165 if (diff & WWM_REV) {
166 if (new & WWM_REV) {
167 if (gen_SO)
168 ttxputs(gen_SO);
169 } else
170 if (gen_SE) {
171 ttxputs(gen_SE);
172 if (gen_UE && gen_US && new & WWM_UL &&
173 !strcmp(gen_SE->ts_str, gen_UE->ts_str))
174 ttxputs(gen_US);
177 if (diff & WWM_UL) {
178 if (new & WWM_UL) {
179 if (gen_US)
180 ttxputs(gen_US);
181 } else
182 if (gen_UE) {
183 ttxputs(gen_UE);
184 if (gen_SE && gen_SO && new & WWM_REV &&
185 !strcmp(gen_UE->ts_str, gen_SE->ts_str))
186 ttxputs(gen_SO);
189 if (diff & WWM_GRP) {
190 if (new & WWM_GRP) {
191 if (gen_AS)
192 ttxputs(gen_AS);
193 } else
194 if (gen_AE)
195 ttxputs(gen_AE);
197 if (diff & WWM_USR) {
198 if (new & WWM_USR) {
199 if (gen_XS)
200 ttxputs(gen_XS);
201 } else
202 if (gen_XE)
203 ttxputs(gen_XE);
205 tt.tt_modes = new;
208 void
209 gen_insline(int n)
211 if (tt.tt_modes) /* for concept 100 */
212 gen_setmodes(0);
213 if (gen_ALn)
214 ttpgoto(gen_ALn, 0, n, gen_LI - tt.tt_row);
215 else
216 while (--n >= 0)
217 tttputs(gen_AL, gen_LI - tt.tt_row);
220 void
221 gen_delline(int n)
223 if (tt.tt_modes) /* for concept 100 */
224 gen_setmodes(0);
225 if (gen_DLn)
226 ttpgoto(gen_DLn, 0, n, gen_LI - tt.tt_row);
227 else
228 while (--n >= 0)
229 tttputs(gen_DL, gen_LI - tt.tt_row);
232 void
233 gen_putc(char c)
235 if (tt.tt_insert)
236 gen_setinsert(0);
237 if (tt.tt_nmodes != tt.tt_modes)
238 gen_setmodes(tt.tt_nmodes);
239 ttputc(c);
240 if (++tt.tt_col == gen_CO) {
241 if (gen_XN)
242 tt.tt_col = tt.tt_row = -10;
243 else if (gen_AM)
244 tt.tt_col = 0, tt.tt_row++;
245 else
246 tt.tt_col--;
250 void
251 gen_write(const char *p, int n)
253 if (tt.tt_insert)
254 gen_setinsert(0);
255 if (tt.tt_nmodes != tt.tt_modes)
256 gen_setmodes(tt.tt_nmodes);
257 ttwrite(p, n);
258 tt.tt_col += n;
259 if (tt.tt_col == gen_CO) {
260 if (gen_XN)
261 tt.tt_col = tt.tt_row = -10;
262 else if (gen_AM)
263 tt.tt_col = 0, tt.tt_row++;
264 else
265 tt.tt_col--;
269 void
270 gen_move(int row, int col)
272 if (tt.tt_row == row && tt.tt_col == col)
273 return;
274 if (!gen_MI && tt.tt_insert)
275 gen_setinsert(0);
276 if (!gen_MS && tt.tt_modes)
277 gen_setmodes(0);
278 if (row < tt.tt_scroll_top || row > tt.tt_scroll_bot)
279 gen_setscroll(0, tt.tt_nrow - 1);
280 if (tt.tt_row == row) {
281 if (col == 0) {
282 ttxputs(gen_CR);
283 goto out;
285 if (tt.tt_col == col - 1) {
286 if (gen_ND) {
287 ttxputs(gen_ND);
288 goto out;
290 } else if (tt.tt_col == col + 1) {
291 if (gen_LE) {
292 ttxputs(gen_LE);
293 goto out;
297 if (tt.tt_col == col) {
298 if (tt.tt_row == row + 1) {
299 if (gen_UP) {
300 ttxputs(gen_UP);
301 goto out;
303 } else if (tt.tt_row == row - 1) {
304 ttxputs(gen_DO);
305 goto out;
308 if (gen_HO && col == 0 && row == 0) {
309 ttxputs(gen_HO);
310 goto out;
312 tttgoto(gen_CM, col, row);
313 out:
314 tt.tt_col = col;
315 tt.tt_row = row;
318 void
319 gen_start(void)
321 if (gen_VS)
322 ttxputs(gen_VS);
323 if (gen_TI)
324 ttxputs(gen_TI);
325 ttxputs(gen_CL);
326 tt.tt_col = tt.tt_row = 0;
327 tt.tt_insert = 0;
328 tt.tt_nmodes = tt.tt_modes = 0;
331 void
332 gen_end(void)
334 if (tt.tt_insert)
335 gen_setinsert(0);
336 if (gen_TE)
337 ttxputs(gen_TE);
338 if (gen_VE)
339 ttxputs(gen_VE);
342 void
343 gen_clreol(void)
345 if (tt.tt_modes) /* for concept 100 */
346 gen_setmodes(0);
347 tttputs(gen_CE, gen_CO - tt.tt_col);
350 void
351 gen_clreos(void)
353 if (tt.tt_modes) /* for concept 100 */
354 gen_setmodes(0);
355 tttputs(gen_CD, gen_LI - tt.tt_row);
358 void
359 gen_clear(void)
361 if (tt.tt_modes) /* for concept 100 */
362 gen_setmodes(0);
363 ttxputs(gen_CL);
366 void
367 gen_inschar(char c)
369 if (!tt.tt_insert)
370 gen_setinsert(1);
371 if (tt.tt_nmodes != tt.tt_modes)
372 gen_setmodes(tt.tt_nmodes);
373 if (gen_IC)
374 tttputs(gen_IC, gen_CO - tt.tt_col);
375 ttputc(c);
376 if (gen_IP)
377 tttputs(gen_IP, gen_CO - tt.tt_col);
378 if (++tt.tt_col == gen_CO) {
379 if (gen_XN)
380 tt.tt_col = tt.tt_row = -10;
381 else if (gen_AM)
382 tt.tt_col = 0, tt.tt_row++;
383 else
384 tt.tt_col--;
388 void
389 gen_insspace(int n)
391 if (gen_ICn)
392 ttpgoto(gen_ICn, 0, n, gen_CO - tt.tt_col);
393 else
394 while (--n >= 0)
395 tttputs(gen_IC, gen_CO - tt.tt_col);
398 void
399 gen_delchar(int n)
401 if (gen_DCn)
402 ttpgoto(gen_DCn, 0, n, gen_CO - tt.tt_col);
403 else
404 while (--n >= 0)
405 tttputs(gen_DC, gen_CO - tt.tt_col);
408 void
409 gen_scroll_down(int n)
411 gen_move(tt.tt_scroll_bot, 0);
412 if (gen_SFn)
413 ttpgoto(gen_SFn, 0, n, n);
414 else
415 while (--n >= 0)
416 ttxputs(gen_SF);
419 void
420 gen_scroll_up(int n)
422 gen_move(tt.tt_scroll_top, 0);
423 if (gen_SRn)
424 ttpgoto(gen_SRn, 0, n, n);
425 else
426 while (--n >= 0)
427 ttxputs(gen_SR);
430 void
431 gen_setscroll(int top, int bot)
433 tttgoto(gen_CS, bot, top);
434 tt.tt_scroll_top = top;
435 tt.tt_scroll_bot = bot;
436 tt.tt_row = tt.tt_col = -10;
440 tt_generic(void)
442 gen_PC = tttgetstr("pc");
443 PC = gen_PC ? *gen_PC->ts_str : 0;
444 ospeed = wwospeed;
446 gen_CM = ttxgetstr("cm"); /* may not work */
447 gen_IM = ttxgetstr("im");
448 gen_IC = tttgetstr("ic");
449 gen_ICn = tttgetstr("IC");
450 gen_IP = tttgetstr("ip");
451 gen_EI = ttxgetstr("ei");
452 gen_DC = tttgetstr("dc");
453 gen_DCn = tttgetstr("DC");
454 gen_AL = tttgetstr("al");
455 gen_ALn = tttgetstr("AL");
456 gen_DL = tttgetstr("dl");
457 gen_DLn = tttgetstr("DL");
458 gen_CE = tttgetstr("ce");
459 gen_CD = tttgetstr("cd");
460 gen_CL = ttxgetstr("cl");
461 gen_VS = ttxgetstr("vs");
462 gen_VE = ttxgetstr("ve");
463 gen_TI = ttxgetstr("ti");
464 gen_TE = ttxgetstr("te");
465 gen_SO = ttxgetstr("so");
466 gen_SE = ttxgetstr("se");
467 gen_US = ttxgetstr("us");
468 gen_UE = ttxgetstr("ue");
469 gen_LE = ttxgetstr("le");
470 gen_ND = ttxgetstr("nd");
471 gen_UP = ttxgetstr("up");
472 gen_DO = ttxgetstr("do");
473 gen_BC = ttxgetstr("bc");
474 gen_NL = ttxgetstr("nl");
475 gen_CR = ttxgetstr("cr");
476 gen_HO = ttxgetstr("ho");
477 gen_AS = ttxgetstr("as");
478 gen_AE = ttxgetstr("ae");
479 gen_XS = ttxgetstr("XS");
480 gen_XE = ttxgetstr("XE");
481 gen_SF = ttxgetstr("sf");
482 gen_SFn = ttxgetstr("SF");
483 gen_SR = ttxgetstr("sr");
484 gen_SRn = ttxgetstr("SR");
485 gen_CS = ttxgetstr("cs");
486 gen_MI = tgetflag("mi");
487 gen_MS = tgetflag("ms");
488 gen_AM = tgetflag("am");
489 gen_OS = tgetflag("os");
490 gen_BS = tgetflag("bs");
491 gen_DA = tgetflag("da");
492 gen_DB = tgetflag("db");
493 gen_NS = tgetflag("ns");
494 gen_XN = tgetflag("xn");
495 gen_CO = tgetnum("co");
496 gen_LI = tgetnum("li");
497 gen_UG = tgetnum("ug");
498 gen_SG = tgetnum("sg");
499 if (gen_CL == 0 || gen_OS || gen_CM == 0)
500 return -1;
503 * Deal with obsolete termcap fields.
505 if (gen_LE == 0) {
506 if (gen_BC)
507 gen_LE = gen_BC;
508 else if (gen_BS) {
509 static struct tt_str bc = { "\b", 1 };
510 gen_BC = &bc;
513 if (gen_NL == 0) {
514 static struct tt_str nl = { "\n", 1 };
515 gen_NL = &nl;
517 if (gen_DO == 0)
518 gen_DO = gen_NL;
519 if (gen_CR == 0) {
520 static struct tt_str cr = { "\r", 1 };
521 gen_CR = &cr;
524 * Most terminal will scroll with "nl", but very few specify "sf".
525 * We shouldn't use "do" here.
527 if (gen_SF == 0 && !gen_NS)
528 gen_SF = gen_NL;
529 BC = gen_LE ? __UNCONST(gen_LE->ts_str) : 0;
530 UP = gen_UP ? __UNCONST(gen_UP->ts_str) : 0;
532 * Fix up display attributes that we can't handle, or don't
533 * really exist.
535 if (gen_SG > 0)
536 gen_SO = 0;
537 if (gen_UG > 0 || (gen_US && gen_SO && ttstrcmp(gen_US, gen_SO) == 0))
538 gen_US = 0;
540 if (gen_IM && gen_IM->ts_n == 0) {
541 free((char *) gen_IM);
542 gen_IM = 0;
544 if (gen_EI && gen_EI->ts_n == 0) {
545 free((char *) gen_EI);
546 gen_EI = 0;
548 if (gen_IC && gen_IC->ts_n == 0) {
549 free((char *) gen_IC);
550 gen_IC = 0;
552 if (gen_IM)
553 tt.tt_inschar = gen_inschar;
554 else if (gen_IC)
555 tt.tt_insspace = gen_insspace;
556 if (gen_DC)
557 tt.tt_delchar = gen_delchar;
558 if (gen_AL)
559 tt.tt_insline = gen_insline;
560 if (gen_DL)
561 tt.tt_delline = gen_delline;
562 if (gen_CE)
563 tt.tt_clreol = gen_clreol;
564 if (gen_CD)
565 tt.tt_clreos = gen_clreos;
566 if (gen_SF)
567 tt.tt_scroll_down = gen_scroll_down;
569 * Don't allow scroll_up if da or db but not cs.
570 * See comment in wwscroll.c.
572 if (gen_SR && (gen_CS || (!gen_DA && !gen_DB)))
573 tt.tt_scroll_up = gen_scroll_up;
574 if (gen_CS)
575 tt.tt_setscroll = gen_setscroll;
576 if (gen_SO)
577 tt.tt_availmodes |= WWM_REV;
578 if (gen_US)
579 tt.tt_availmodes |= WWM_UL;
580 if (gen_AS)
581 tt.tt_availmodes |= WWM_GRP;
582 if (gen_XS)
583 tt.tt_availmodes |= WWM_USR;
584 tt.tt_wrap = gen_AM;
585 tt.tt_retain = gen_DB;
586 tt.tt_ncol = gen_CO;
587 tt.tt_nrow = gen_LI;
588 tt.tt_start = gen_start;
589 tt.tt_end = gen_end;
590 tt.tt_write = gen_write;
591 tt.tt_putc = gen_putc;
592 tt.tt_move = gen_move;
593 tt.tt_clear = gen_clear;
594 tt.tt_setmodes = gen_setmodes;
595 tt.tt_frame = gen_AS && ttstrcmp(gen_AS, &ansi_AS) == 0 ?
596 ansi_frame : gen_frame;
597 return 0;