| abstract
| - Below is the full text to hack.tty.c from the source code of Hack 1.0. To link to a particular line, write [[Hack 1.0/hack.tty.c#line123]], for example. Warning! This is the source code from an old release. For the latest release, see Source code 1. /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1984. */ 2. 3. #include "hack.h" 4. #include 5. #include 6. 7. struct sgttyb inittyb, curttyb; 8. extern short ospeed; 9. 10. 11. gettty(){ 12. (void) gtty(0, &inittyb); 13. (void) gtty(0, &curttyb); 14. ospeed = inittyb.sg_ospeed; 15. /* 16. if(ospeed <= B300) flags.oneline = 1; 17. */ 18. getioctls(); 19. xtabs(); 20. } 21. 22. /* reset terminal to original state */ 23. settty(s) char *s; { 24. clear_screen(); 25. if(s) printf(s); 26. (void) fflush(stdout); 27. if(stty(0, &inittyb) == -1) puts("Cannot change tty"); 28. flags.echo = (inittyb.sg_flags & ECHO) ? ON : OFF; 29. flags.cbreak = (inittyb.sg_flags & CBREAK) ? ON : OFF; 30. setioctls(); 31. } 32. 33. setctty(){ 34. if(stty(0, &curttyb) == -1) puts("Cannot change tty"); 35. } 36. 37. setftty(){ 38. register int ef = (flags.echo == ON) ? ECHO : 0; 39. register int cf = (flags.cbreak == ON) ? CBREAK : 0; 40. register int change = 0; 41. if((curttyb.sg_flags & ECHO) != ef){ 42. curttyb.sg_flags &= ~ECHO; 43. curttyb.sg_flags |= ef; 44. change++; 45. } 46. if((curttyb.sg_flags & CBREAK) != cf){ 47. curttyb.sg_flags &= ~CBREAK; 48. curttyb.sg_flags |= cf; 49. change++; 50. } 51. if(change){ 52. setctty(); 53. } 54. } 55. 56. echo(n) 57. register n; 58. { 59. 60. /* (void) gtty(0,&curttyb); */ 61. if(n == ON) 62. curttyb.sg_flags |= ECHO; 63. else 64. curttyb.sg_flags &= ~ECHO; 65. setctty(); 66. } 67. 68. /* always want to expand tabs, or to send a clear line char before 69. printing something on topline */ 70. xtabs() 71. { 72. 73. /* (void) gtty(0, &curttyb); */ 74. curttyb.sg_flags |= XTABS; 75. setctty(); 76. } 77. 78. #ifdef LONG_CMD 79. cbreak(n) 80. register n; 81. { 82. 83. /* (void) gtty(0,&curttyb); */ 84. if(n == ON) 85. curttyb.sg_flags |= CBREAK; 86. else 87. curttyb.sg_flags &= ~CBREAK; 88. setctty(); 89. } 90. #endif LONG_CMD 91. 92. getlin(bufp) 93. register char *bufp; 94. { 95. register char *obufp = bufp; 96. register int c; 97. 98. flags.topl = 2; /* nonempty, no --More-- required */ 99. for(;;) { 100. (void) fflush(stdout); 101. if((c = getchar()) == EOF) { 102. *bufp = 0; 103. return; 104. } 105. if(c == '\b') { 106. if(bufp != obufp) { 107. bufp--; 108. putstr("\b \b"); /* putsym converts \b */ 109. } else bell(); 110. } else if(c == '
') { 111. *bufp = 0; 112. return; 113. } else { 114. *bufp = c; 115. bufp[1] = 0; 116. putstr(bufp); 117. if(bufp-obufp < BUFSZ-1 && bufp-obufp < COLNO) 118. bufp++; 119. } 120. } 121. } 122. 123. getret() { 124. xgetret(TRUE); 125. } 126. 127. cgetret() { 128. xgetret(FALSE); 129. } 130. 131. xgetret(spaceflag) 132. boolean spaceflag; /* TRUE if space (return) required */ 133. { 134. printf("
Hit %s to continue: ", 135. flags.cbreak ? "space" : "return"); 136. xwaitforspace(spaceflag); 137. } 138. 139. char morc; /* tell the outside world what char he used */ 140. 141. xwaitforspace(spaceflag) 142. boolean spaceflag; 143. { 144. register int c; 145. 146. (void) fflush(stdout); 147. morc = 0; 148. 149. while((c = getchar()) != '
') { 150. if(c == EOF) { 151. settty("End of input?
"); 152. exit(0); 153. } 154. if(flags.cbreak) { 155. if(c == ' ') break; 156. if(!spaceflag && letter(c)) { 157. morc = c; 158. break; 159. } 160. } 161. } 162. } 163. 164. char * 165. parse() 166. { 167. static char inline[COLNO]; 168. register foo; 169. 170. flags.move = 1; 171. if(!Invis) curs(u.ux,u.uy+2); else home(); 172. (void) fflush(stdout); 173. while((foo = getchar()) >= '0' && foo <= '9') 174. multi += 10*multi+foo-'0'; 175. if(multi) { 176. multi--; 177. save_cm = inline; 178. } 179. inline[0] = foo; 180. inline[1] = 0; 181. if(foo == EOF) { 182. settty("End of input?
"); 183. exit(0); 184. } 185. if(foo == 'f' || foo == 'F'){ 186. inline[1] = getchar(); 187. #ifdef QUEST 188. if(inline[1] == foo) inline[2] = getchar(); else 189. #endif QUEST 190. inline[2] = 0; 191. } 192. if(foo == 'm' || foo == 'M'){ 193. inline[1] = getchar(); 194. inline[2] = 0; 195. } 196. clrlin(); 197. return(inline); 198. } 199. 200. char 201. readchar() { 202. register int sym; 203. (void) fflush(stdout); 204. if((sym = getchar()) == EOF) { 205. settty("End of input?
"); 206. exit(0); 207. } 208. if(flags.topl == 1) flags.topl = 2; 209. return((char) sym); 210. }
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