| 1 | /* |
| 2 | * Copyright (c) 1980 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. All advertising materials mentioning features or use of this software |
| 14 | * must display the following acknowledgement: |
| 15 | * This product includes software developed by the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University nor the names of its contributors |
| 18 | * may be used to endorse or promote products derived from this software |
| 19 | * without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | #ifndef lint |
| 35 | static char sccsid[] = "@(#)tputs.c 5.3 (Berkeley) 6/1/90"; |
| 36 | #endif /* not lint */ |
| 37 | |
| 38 | #include <sgtty.h> |
| 39 | #include <ctype.h> |
| 40 | |
| 41 | /* |
| 42 | * The following array gives the number of tens of milliseconds per |
| 43 | * character for each speed as returned by gtty. Thus since 300 |
| 44 | * baud returns a 7, there are 33.3 milliseconds per char at 300 baud. |
| 45 | */ |
| 46 | static |
| 47 | short tmspc10[] = { |
| 48 | 0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5 |
| 49 | }; |
| 50 | |
| 51 | short ospeed; |
| 52 | char PC; |
| 53 | |
| 54 | /* |
| 55 | * Put the character string cp out, with padding. |
| 56 | * The number of affected lines is affcnt, and the routine |
| 57 | * used to output one character is outc. |
| 58 | */ |
| 59 | tputs(cp, affcnt, outc) |
| 60 | register char *cp; |
| 61 | int affcnt; |
| 62 | int (*outc)(); |
| 63 | { |
| 64 | register int i = 0; |
| 65 | register int mspc10; |
| 66 | |
| 67 | if (cp == 0) |
| 68 | return; |
| 69 | |
| 70 | /* |
| 71 | * Convert the number representing the delay. |
| 72 | */ |
| 73 | if (isdigit(*cp)) { |
| 74 | do |
| 75 | i = i * 10 + *cp++ - '0'; |
| 76 | while (isdigit(*cp)); |
| 77 | } |
| 78 | i *= 10; |
| 79 | if (*cp == '.') { |
| 80 | cp++; |
| 81 | if (isdigit(*cp)) |
| 82 | i += *cp - '0'; |
| 83 | /* |
| 84 | * Only one digit to the right of the decimal point. |
| 85 | */ |
| 86 | while (isdigit(*cp)) |
| 87 | cp++; |
| 88 | } |
| 89 | |
| 90 | /* |
| 91 | * If the delay is followed by a `*', then |
| 92 | * multiply by the affected lines count. |
| 93 | */ |
| 94 | if (*cp == '*') |
| 95 | cp++, i *= affcnt; |
| 96 | |
| 97 | /* |
| 98 | * The guts of the string. |
| 99 | */ |
| 100 | while (*cp) |
| 101 | (*outc)(*cp++); |
| 102 | |
| 103 | /* |
| 104 | * If no delay needed, or output speed is |
| 105 | * not comprehensible, then don't try to delay. |
| 106 | */ |
| 107 | if (i == 0) |
| 108 | return; |
| 109 | if (ospeed <= 0 || ospeed >= (sizeof tmspc10 / sizeof tmspc10[0])) |
| 110 | return; |
| 111 | |
| 112 | /* |
| 113 | * Round up by a half a character frame, |
| 114 | * and then do the delay. |
| 115 | * Too bad there are no user program accessible programmed delays. |
| 116 | * Transmitting pad characters slows many |
| 117 | * terminals down and also loads the system. |
| 118 | */ |
| 119 | mspc10 = tmspc10[ospeed]; |
| 120 | i += mspc10 / 2; |
| 121 | for (i /= mspc10; i > 0; i--) |
| 122 | (*outc)(PC); |
| 123 | } |