1 /**************************************************************************** 2 * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 /* 35 * tputs.c 36 * delay_output() 37 * _nc_outch() 38 * tputs() 39 * 40 */ 41 42 #include <curses.priv.h> 43 #include <ctype.h> 44 #include <term.h> /* padding_baud_rate, xon_xoff */ 45 #include <termcap.h> /* ospeed */ 46 #include <tic.h> 47 48 MODULE_ID("$Id: lib_tputs.c,v 1.51 2000/10/08 00:22:24 tom Exp $") 49 50 char PC = 0; /* used by termcap library */ 51 short ospeed = 0; /* used by termcap library */ 52 53 int _nc_nulls_sent = 0; /* used by 'tack' program */ 54 55 static int (*my_outch) (int c) = _nc_outch; 56 57 int 58 delay_output(int ms) 59 { 60 T((T_CALLED("delay_output(%d)"), ms)); 61 62 if (no_pad_char) { 63 _nc_flush(); 64 napms(ms); 65 } else { 66 register int nullcount; 67 68 nullcount = (ms * _nc_baudrate(ospeed)) / 10000; 69 for (_nc_nulls_sent += nullcount; nullcount > 0; nullcount--) 70 my_outch(PC); 71 if (my_outch == _nc_outch) 72 _nc_flush(); 73 } 74 75 returnCode(OK); 76 } 77 78 void 79 _nc_flush(void) 80 { 81 (void) fflush(NC_OUTPUT); 82 } 83 84 int 85 _nc_outch(int ch) 86 { 87 #ifdef TRACE 88 _nc_outchars++; 89 #endif /* TRACE */ 90 91 if (SP != 0 92 && SP->_cleanup) { 93 char tmp = ch; 94 /* 95 * POSIX says write() is safe in a signal handler, but the 96 * buffered I/O is not. 97 */ 98 write(fileno(NC_OUTPUT), &tmp, 1); 99 } else { 100 putc(ch, NC_OUTPUT); 101 } 102 return OK; 103 } 104 105 #if USE_WIDEC_SUPPORT 106 /* 107 * Reference: The Unicode Standard 2.0 108 * 109 * No surrogates supported (we're storing only one 16-bit Unicode value per 110 * cell). 111 */ 112 int 113 _nc_utf8_outch(int ch) 114 { 115 static const unsigned byteMask = 0xBF; 116 static const unsigned otherMark = 0x80; 117 static const unsigned firstMark[] = 118 {0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC}; 119 120 int result[7], *ptr; 121 int count = 0; 122 123 if ((unsigned int) ch < 0x80) 124 count = 1; 125 else if ((unsigned int) ch < 0x800) 126 count = 2; 127 else if ((unsigned int) ch < 0x10000) 128 count = 3; 129 else if ((unsigned int) ch < 0x200000) 130 count = 4; 131 else if ((unsigned int) ch < 0x4000000) 132 count = 5; 133 else if ((unsigned int) ch <= 0x7FFFFFFF) 134 count = 6; 135 else { 136 count = 3; 137 ch = 0xFFFD; 138 } 139 ptr = result + count; 140 switch (count) { 141 case 6: 142 *--ptr = (ch | otherMark) & byteMask; 143 ch >>= 6; 144 /* FALLTHRU */ 145 case 5: 146 *--ptr = (ch | otherMark) & byteMask; 147 ch >>= 6; 148 /* FALLTHRU */ 149 case 4: 150 *--ptr = (ch | otherMark) & byteMask; 151 ch >>= 6; 152 /* FALLTHRU */ 153 case 3: 154 *--ptr = (ch | otherMark) & byteMask; 155 ch >>= 6; 156 /* FALLTHRU */ 157 case 2: 158 *--ptr = (ch | otherMark) & byteMask; 159 ch >>= 6; 160 /* FALLTHRU */ 161 case 1: 162 *--ptr = (ch | firstMark[count]); 163 break; 164 } 165 while (count--) 166 _nc_outch(*ptr++); 167 return OK; 168 } 169 #endif 170 171 int 172 putp(const char *string) 173 { 174 return tputs(string, 1, _nc_outch); 175 } 176 177 int 178 tputs(const char *string, int affcnt, int (*outc) (int)) 179 { 180 bool always_delay; 181 bool normal_delay; 182 int number; 183 #if BSD_TPUTS 184 int trailpad; 185 #endif /* BSD_TPUTS */ 186 187 #ifdef TRACE 188 char addrbuf[32]; 189 190 if (_nc_tracing & TRACE_TPUTS) { 191 if (outc == _nc_outch) 192 (void) strcpy(addrbuf, "_nc_outch"); 193 else 194 (void) sprintf(addrbuf, "%p", outc); 195 if (_nc_tputs_trace) { 196 _tracef("tputs(%s = %s, %d, %s) called", _nc_tputs_trace, 197 _nc_visbuf(string), affcnt, addrbuf); 198 } else { 199 _tracef("tputs(%s, %d, %s) called", _nc_visbuf(string), affcnt, addrbuf); 200 } 201 _nc_tputs_trace = (char *) NULL; 202 } 203 #endif /* TRACE */ 204 205 if (!VALID_STRING(string)) 206 return ERR; 207 208 if (cur_term == 0) { 209 always_delay = FALSE; 210 normal_delay = TRUE; 211 } else { 212 always_delay = (string == bell) || (string == flash_screen); 213 normal_delay = 214 !xon_xoff 215 && padding_baud_rate 216 #if NCURSES_NO_PADDING 217 && (SP == 0 || !(SP->_no_padding)) 218 #endif 219 && (_nc_baudrate(ospeed) >= padding_baud_rate); 220 } 221 222 #if BSD_TPUTS 223 /* 224 * This ugly kluge deals with the fact that some ancient BSD programs 225 * (like nethack) actually do the likes of tputs("50") to get delays. 226 */ 227 trailpad = 0; 228 if (isdigit(*string)) { 229 while (isdigit(*string)) { 230 trailpad = trailpad * 10 + (*string - '0'); 231 string++; 232 } 233 trailpad *= 10; 234 if (*string == '.') { 235 string++; 236 if (isdigit(*string)) { 237 trailpad += (*string - '0'); 238 string++; 239 } 240 while (isdigit(*string)) 241 string++; 242 } 243 244 if (*string == '*') { 245 trailpad *= affcnt; 246 string++; 247 } 248 } 249 #endif /* BSD_TPUTS */ 250 251 my_outch = outc; /* redirect delay_output() */ 252 while (*string) { 253 if (*string != '$') 254 (*outc) (*string); 255 else { 256 string++; 257 if (*string != '<') { 258 (*outc) ('$'); 259 if (*string) 260 (*outc) (*string); 261 } else { 262 bool mandatory; 263 264 string++; 265 if ((!isdigit(*string) && *string != '.') || !strchr(string, '>')) { 266 (*outc) ('$'); 267 (*outc) ('<'); 268 continue; 269 } 270 271 number = 0; 272 while (isdigit(*string)) { 273 number = number * 10 + (*string - '0'); 274 string++; 275 } 276 number *= 10; 277 if (*string == '.') { 278 string++; 279 if (isdigit(*string)) { 280 number += (*string - '0'); 281 string++; 282 } 283 while (isdigit(*string)) 284 string++; 285 } 286 287 mandatory = FALSE; 288 while (*string == '*' || *string == '/') { 289 if (*string == '*') { 290 number *= affcnt; 291 string++; 292 } else { /* if (*string == '/') */ 293 mandatory = TRUE; 294 string++; 295 } 296 } 297 298 if (number > 0 299 && (always_delay 300 || normal_delay 301 || mandatory)) 302 delay_output(number / 10); 303 304 } /* endelse (*string == '<') */ 305 } /* endelse (*string == '$') */ 306 307 if (*string == '\0') 308 break; 309 310 string++; 311 } 312 313 #if BSD_TPUTS 314 /* 315 * Emit any BSD-style prefix padding that we've accumulated now. 316 */ 317 if (trailpad > 0 318 && (always_delay || normal_delay)) 319 delay_output(trailpad / 10); 320 #endif /* BSD_TPUTS */ 321 322 my_outch = _nc_outch; 323 return OK; 324 } 325