Source:NetHack 2.3e/termcap.c
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Below is the full text to termcap.c from the source code of NetHack 2.3e.
Warning! This is the source code from an old release. For newer releases, see Source code
Screenshots and source code from Hack are used under the CWI license.
1. /* SCCS Id: @(#)termcap.c 2.3 87/12/12 2. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ 3. 4. #include <stdio.h> 5. #include <ctype.h> /* for isdigit() */ 6. #include "hack.h" /* for ROWNO, COLNO, *HI, *HE */ 7. #ifdef GENIX 8. #define void int /* jhn - mod to prevent compiler from bombing */ 9. #endif 10. 11. extern char *tgetstr(), *tgoto(), *getenv(); 12. extern long *alloc(); 13. 14. #ifndef SYSV 15. # ifndef LINT 16. extern /* it is defined in libtermlib (libtermcap) */ 17. # endif 18. short ospeed; /* terminal baudrate; used by tputs */ 19. #else 20. short ospeed = 0; /* gets around "not defined" error message */ 21. #endif 22. 23. static char tbuf[512]; 24. static char *HO, *CL, *CE, *UP, *CM, *ND, *XD, *BC, *SO, *SE, *TI, *TE; 25. static char *VS, *VE, *US, *UE; 26. static int SG; 27. static char PC = '\0'; 28. char *CD; /* tested in pri.c: docorner() */ 29. int CO, LI; /* used in pri.c and whatis.c */ 30. 31. #if defined(MSDOS) && !defined(TERMLIB) 32. static char tgotobuf[20]; 33. #define tgoto(fmt, x, y) (sprintf(tgotobuf, fmt, y+1, x+1), tgotobuf) 34. #endif /* MSDOS /**/ 35. 36. startup() 37. { 38. register char *term; 39. register char *tptr; 40. char *tbufptr, *pc; 41. register int i; 42. 43. tptr = (char *) alloc(1024); 44. 45. tbufptr = tbuf; 46. if(!(term = getenv("TERM"))) 47. error("Can't get TERM."); 48. if(!strncmp(term, "5620", 4)) 49. flags.nonull = 1; /* this should be a termcap flag */ 50. if(tgetent(tptr, term) < 1) 51. error("Unknown terminal type: %s.", term); 52. if(pc = tgetstr("pc", &tbufptr)) 53. PC = *pc; 54. if(!(BC = tgetstr("bc", &tbufptr))) { 55. if(!tgetflag("bs")) 56. error("Terminal must backspace."); 57. BC = tbufptr; 58. tbufptr += 2; 59. *BC = '\b'; 60. } 61. HO = tgetstr("ho", &tbufptr); 62. CO = tgetnum("co"); 63. LI = tgetnum("li"); 64. if(CO < COLNO || LI < ROWNO+2) 65. setclipped(); 66. if(!(CL = tgetstr("cl", &tbufptr))) 67. error("Hack needs CL."); 68. ND = tgetstr("nd", &tbufptr); 69. if(tgetflag("os")) 70. error("Hack can't have OS."); 71. CE = tgetstr("ce", &tbufptr); 72. UP = tgetstr("up", &tbufptr); 73. /* It seems that xd is no longer supported, and we should use 74. a linefeed instead; unfortunately this requires resetting 75. CRMOD, and many output routines will have to be modified 76. slightly. Let's leave that till the next release. */ 77. XD = tgetstr("xd", &tbufptr); 78. /* not: XD = tgetstr("do", &tbufptr); */ 79. if(!(CM = tgetstr("cm", &tbufptr))) { 80. if(!UP && !HO) 81. error("Hack needs CM or UP or HO."); 82. printf("Playing hack on terminals without cm is suspect...\n"); 83. getret(); 84. } 85. SO = tgetstr("so", &tbufptr); 86. SE = tgetstr("se", &tbufptr); 87. US = tgetstr("us", &tbufptr); 88. UE = tgetstr("ue", &tbufptr); 89. SG = tgetnum("sg"); /* -1: not fnd; else # of spaces left by so */ 90. if(!SO || !SE || (SG > 0)) SO = SE = US = UE = ""; 91. TI = tgetstr("ti", &tbufptr); 92. TE = tgetstr("te", &tbufptr); 93. VS = VE = ""; 94. #if defined(SORTING) || defined(MSDOSCOLOR) 95. /* Get rid of padding numbers for HI and HE. Hope they 96. * aren't really needed!!! HI and HE are ouputted to the 97. * pager as a string - so how can you send it NULLS??? 98. * -jsb 99. */ 100. HI = (char *) alloc((unsigned)(strlen(SO)+1)); 101. HE = (char *) alloc((unsigned)(strlen(SE)+1)); 102. i = 0; 103. while(isdigit(SO[i])) i++; 104. strcpy(HI, &SO[i]); 105. i = 0; 106. while(isdigit(SE[i])) i++; 107. strcpy(HE, &SE[i]); 108. #endif 109. CD = tgetstr("cd", &tbufptr); 110. set_whole_screen(); /* uses LI and CD */ 111. if(tbufptr-tbuf > sizeof(tbuf)) error("TERMCAP entry too big...\n"); 112. free(tptr); 113. #ifdef MSDOSCOLOR 114. init_hilite(); 115. #endif 116. } 117. 118. start_screen() 119. { 120. xputs(TI); 121. xputs(VS); 122. #ifdef DGK 123. /* Select normal ASCII and line drawing character sets. 124. */ 125. if (flags.DECRainbow) 126. xputs("\033(B\033)0"); 127. #endif 128. } 129. 130. end_screen() 131. { 132. clear_screen(); 133. xputs(VE); 134. xputs(TE); 135. } 136. 137. /* Cursor movements */ 138. extern xchar curx, cury; 139. 140. curs(x, y) 141. register int x, y; /* not xchar: perhaps xchar is unsigned and 142. curx-x would be unsigned as well */ 143. { 144. 145. if (y == cury && x == curx) 146. return; 147. if(!ND && (curx != x || x <= 3)) { /* Extremely primitive */ 148. cmov(x, y); /* bunker!wtm */ 149. return; 150. } 151. if(abs(cury-y) <= 3 && abs(curx-x) <= 3) 152. nocmov(x, y); 153. else if((x <= 3 && abs(cury-y)<= 3) || (!CM && x<abs(curx-x))) { 154. (void) putchar('\r'); 155. curx = 1; 156. nocmov(x, y); 157. } else if(!CM) { 158. nocmov(x, y); 159. } else 160. cmov(x, y); 161. } 162. 163. nocmov(x, y) 164. { 165. if (cury > y) { 166. if(UP) { 167. while (cury > y) { /* Go up. */ 168. xputs(UP); 169. cury--; 170. } 171. } else if(CM) { 172. cmov(x, y); 173. } else if(HO) { 174. home(); 175. curs(x, y); 176. } /* else impossible("..."); */ 177. } else if (cury < y) { 178. if(XD) { 179. while(cury < y) { 180. xputs(XD); 181. cury++; 182. } 183. } else if(CM) { 184. cmov(x, y); 185. } else { 186. while(cury < y) { 187. xputc('\n'); 188. curx = 1; 189. cury++; 190. } 191. } 192. } 193. if (curx < x) { /* Go to the right. */ 194. if(!ND) cmov(x, y); else /* bah */ 195. /* should instead print what is there already */ 196. while (curx < x) { 197. xputs(ND); 198. curx++; 199. } 200. } else if (curx > x) { 201. while (curx > x) { /* Go to the left. */ 202. xputs(BC); 203. curx--; 204. } 205. } 206. } 207. 208. cmov(x, y) 209. register x, y; 210. { 211. xputs(tgoto(CM, x-1, y-1)); 212. cury = y; 213. curx = x; 214. } 215. 216. xputc(c) char c; { 217. (void) fputc(c, stdout); 218. } 219. 220. xputs(s) char *s; { 221. #if defined(MSDOS) && !defined(TERMLIB) 222. fputs(s, stdout); 223. #else 224. tputs(s, 1, xputc); 225. #endif 226. } 227. 228. cl_end() { 229. if(CE) 230. xputs(CE); 231. else { /* no-CE fix - free after Harold Rynes */ 232. /* this looks terrible, especially on a slow terminal 233. but is better than nothing */ 234. register cx = curx, cy = cury; 235. 236. while(curx < COLNO) { 237. xputc(' '); 238. curx++; 239. } 240. curs(cx, cy); 241. } 242. } 243. 244. clear_screen() { 245. xputs(CL); 246. home(); 247. } 248. 249. home() 250. { 251. if(HO) 252. xputs(HO); 253. else if(CM) 254. xputs(tgoto(CM, 0, 0)); 255. else 256. curs(1, 1); /* using UP ... */ 257. curx = cury = 1; 258. } 259. 260. standoutbeg() 261. { 262. if(SO) xputs(SO); 263. } 264. 265. standoutend() 266. { 267. if(SE) xputs(SE); 268. } 269. 270. backsp() 271. { 272. xputs(BC); 273. curx--; 274. } 275. 276. bell() 277. { 278. #ifdef DGKMOD 279. if (flags.silent) return; 280. #endif /* DGKMOD /**/ 281. (void) putchar('\007'); /* curx does not change */ 282. (void) fflush(stdout); 283. } 284. 285. static short tmspc10[] = { /* from termcap */ 286. 0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5 287. }; 288. 289. delay_output() { 290. /* delay 50 ms - could also use a 'nap'-system call */ 291. /* BUG: if the padding character is visible, as it is on the 5620 292. then this looks terrible. */ 293. #ifdef MSDOS 294. /* simulate the delay with "cursor here" */ 295. register i; 296. for (i = 0; i < 3; i++) { 297. cmov(curx, cury); 298. (void) fflush(stdout); 299. } 300. #else /* MSDOS /**/ 301. if(!flags.nonull) 302. #ifdef TERMINFO 303. tputs("$<50>", 1, xputs); 304. #else 305. tputs("50", 1, xputs); 306. #endif 307. /* cbosgd!cbcephus!pds for SYS V R2 */ 308. /* is this terminfo, or what? */ 309. /* tputs("$<50>", 1, xputc); */ 310. 311. else if(ospeed > 0 || ospeed < SIZE(tmspc10)) if(CM) { 312. /* delay by sending cm(here) an appropriate number of times */ 313. register int cmlen = strlen(tgoto(CM, curx-1, cury-1)); 314. register int i = 500 + tmspc10[ospeed]/2; 315. 316. while(i > 0) { 317. cmov(curx, cury); 318. i -= cmlen*tmspc10[ospeed]; 319. } 320. } 321. #endif /* MSDOS /**/ 322. } 323. 324. cl_eos() /* free after Robert Viduya */ 325. { /* must only be called with curx = 1 */ 326. 327. if(CD) 328. xputs(CD); 329. else { 330. register int cx = curx, cy = cury; 331. while(cury <= LI-2) { 332. cl_end(); 333. xputc('\n'); 334. curx = 1; 335. cury++; 336. } 337. cl_end(); 338. curs(cx, cy); 339. } 340. } 341. 342. #ifdef MSDOSCOLOR 343. /* Sets up highlighting, using ANSI escape sequences, for monsters and 344. * objects (highlight code found in pri.c). 345. * The termcap entry for HI (from SO) is scanned to find the background 346. * color. If everything is o.k., monsters are displayed in the color 347. * used to define HILITE_MONSTER and objects are displayed in the color 348. * used to define HILITE_OBJECT. */ 349. 350. #define ESC 0x1b 351. #define NONE 0 352. #define HIGH_INTENSITY 1 353. #define BLACK 0 354. #define RED 1 355. #define GREEN 2 356. #define YELLOW 3 357. #define BLUE 4 358. #define MAGENTA 5 359. #define CYAN 6 360. #define WHITE 7 361. 362. #define HILITE_ATTRIB NONE 363. #define HILITE_MONSTER RED 364. #define HILITE_OBJECT YELLOW 365. 366. init_hilite() 367. { 368. register int backg, len, mfore, ofore; 369. 370. backg = BLACK; 371. mfore = ofore = WHITE; 372. /* find the background color, HI[len] == 'm' */ 373. len = strlen(HI) - 1; 374. if (len > 3) 375. if (isdigit(HI[len-1]) && 376. isdigit(HI[len-2]) && HI[len-2] != 3) { 377. backg = HI[len-1] - '0'; 378. mfore = HILITE_MONSTER; 379. ofore = HILITE_OBJECT; 380. } 381. if (mfore == backg || ofore == backg) { 382. if (len < 7) mfore = ofore = WHITE; 383. else { 384. if (HI[2] == '3') mfore = ofore = HI[3] - '0'; 385. else if (HI[4] == '3') mfore = ofore = HI[5] - '0'; 386. else mfore = ofore = WHITE; /* give up! */ 387. } 388. } 389. 390. HI_MON = (char *) alloc(sizeof("E[0;33;44;54m")); 391. sprintf(HI_MON, "%c[%d;3%d;4%dm", ESC, HILITE_ATTRIB, 392. mfore, backg); 393. HI_OBJ = (char *) alloc(sizeof("E[0;33;44;54m")); 394. sprintf(HI_OBJ, "%c[%d;3%d;4%dm", ESC, HILITE_ATTRIB, 395. ofore, backg); 396. } 397. 398. #endif