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Diffstat (limited to 'libterm/tputs.c')
| -rw-r--r-- | libterm/tputs.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/libterm/tputs.c b/libterm/tputs.c new file mode 100644 index 0000000..58e0665 --- /dev/null +++ b/libterm/tputs.c @@ -0,0 +1,134 @@ +/* + * This code contains changes by + * Gunnar Ritter, Freiburg i. Br., Germany, 2002. All rights reserved. + * + * Conditions 1, 2, and 4 and the no-warranty notice below apply + * to these changes. + * + * + * Copyright (c) 1980, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +#ifdef DOSCCS +static char *sccsid = "@(#)tputs.c 1.4 (gritter) 11/23/04"; +#endif +#endif + +/* from tputs.c 5.1 (Berkeley) 6/5/85 */ + +#include <ctype.h> + +#include "libterm.h" + +/* + * The following array gives the number of tens of milliseconds per + * character for each speed as returned by gtty. Thus since 300 + * baud returns a 7, there are 33.3 milliseconds per char at 300 baud. + */ +static +short tmspc10[] = { + 0, 2000, 1333, 909, 743, 666, 500, 333, 166, 83, 55, 41, 20, 10, 5 +}; + +short ospeed; +char PC; + +/* + * Put the character string cp out, with padding. + * The number of affected lines is affcnt, and the routine + * used to output one character is outc. + */ +int +tputs(const char *cp, int affcnt, int (*outc)(int)) +{ + register int i = 0; + register int mspc10; + + if (cp == 0) + return 1; + + /* + * Convert the number representing the delay. + */ + if (isdigit(*cp & 0377)) { + do + i = i * 10 + *cp++ - '0'; + while (isdigit(*cp & 0377)); + } + i *= 10; + if (*cp == '.') { + cp++; + if (isdigit(*cp & 0377)) + i += *cp - '0'; + /* + * Only one digit to the right of the decimal point. + */ + while (isdigit(*cp & 0377)) + cp++; + } + + /* + * If the delay is followed by a `*', then + * multiply by the affected lines count. + */ + if (*cp == '*') + cp++, i *= affcnt; + + /* + * The guts of the string. + */ + while (*cp) + (*outc)(*cp++); + + /* + * If no delay needed, or output speed is + * not comprehensible, then don't try to delay. + */ + if (i == 0) + return 1; + if (ospeed <= 0 || ospeed >= (sizeof tmspc10 / sizeof tmspc10[0])) + return 1; + + /* + * Round up by a half a character frame, + * and then do the delay. + * Too bad there are no user program accessible programmed delays. + * Transmitting pad characters slows many + * terminals down and also loads the system. + */ + mspc10 = tmspc10[ospeed]; + i += mspc10 / 2; + for (i /= mspc10; i > 0; i--) + (*outc)(PC); + return 1; +} |