diff options
Diffstat (limited to 'libterm')
| -rw-r--r-- | libterm/Makefile | 64 | ||||
| -rw-r--r-- | libterm/libterm.h | 56 | ||||
| -rw-r--r-- | libterm/termcap.c | 410 | ||||
| -rw-r--r-- | libterm/tgoto.c | 222 | ||||
| -rw-r--r-- | libterm/tputs.c | 134 |
5 files changed, 886 insertions, 0 deletions
diff --git a/libterm/Makefile b/libterm/Makefile new file mode 100644 index 0000000..b3432b1 --- /dev/null +++ b/libterm/Makefile @@ -0,0 +1,64 @@ +# +# 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. +# +# from Makefile 5.1 (Berkeley) 6/5/85 +# +# Sccsid @(#)Makefile 1.2 (gritter) 2/4/02 +# +DEFS = -DCM_N -DCM_GT -DCM_B -DCM_D +# COPT comes from ex. +CFLAGS = $(DEFS) $(COPT) +SRCS = termcap.c tgoto.c tputs.c +OBJS = termcap.o tgoto.o tputs.o + +.c.o: ; $(CC) $(CFLAGS) -c $< + +all: libtermlib.a + +libtermlib.a: $(OBJS) + ar cr libtermlib.a $(OBJS) + +clean: + rm -f libtermlib.a $(OBJS) core + +# DO NOT DELETE + +termcap.o: libterm.h +tgoto.o: libterm.h +tputs.o: libterm.h diff --git a/libterm/libterm.h b/libterm/libterm.h new file mode 100644 index 0000000..8629224 --- /dev/null +++ b/libterm/libterm.h @@ -0,0 +1,56 @@ +/* + * 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. + * + * + * Header for termcap routines derived from 2.11 BSD. + * + * Sccsid @(#)libterm.h 1.4 (gritter) 11/23/04 + */ + +/* + * Size of the capability buffer string. + */ +#define TCBUFSIZE 2048 + +int tgetent(char *, const char *); +int tgetnum(char *); +int tgetflag(char *); +char *tgetstr(char *, char **); +char *tgoto(char *, int, int); +int tputs(const char *, int, int (*)(int)); diff --git a/libterm/termcap.c b/libterm/termcap.c new file mode 100644 index 0000000..6cee780 --- /dev/null +++ b/libterm/termcap.c @@ -0,0 +1,410 @@ +/* + * 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 = "@(#)termcap.c 1.7 (gritter) 11/23/04"; +#endif +#endif + +/* from termcap.c 5.1 (Berkeley) 6/5/85 */ + +#if 0 /* GR */ +#define TCBUFSIZE 1024 +#else +#include "libterm.h" +#endif +#define E_TERMCAP "/etc/termcap" +#define MAXHOP 32 /* max number of tc= indirections */ + +#include <ctype.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdlib.h> + +/* + * termcap - routines for dealing with the terminal capability data base + * + * BUG: Should use a "last" pointer in tbuf, so that searching + * for capabilities alphabetically would not be a n**2/2 + * process when large numbers of capabilities are given. + * Note: If we add a last pointer now we will screw up the + * tc capability. We really should compile termcap. + * + * Essentially all the work here is scanning and decoding escapes + * in string capabilities. We don't use stdio because the editor + * doesn't, and because living w/o it is not hard. + */ + +static char *tbuf; +static int hopcount; /* detect infinite loops in termcap, init 0 */ + +static int tnamatch(const char *); +static int tnchktc(void); +static char *tskip(register const char *); +static char *tdecode(register char *, char **); + +/* + * Tnamatch deals with name matching. The first field of the termcap + * entry is a sequence of names separated by |'s, so we compare + * against each such name. The normal : terminator after the last + * name (before the first field) stops us. + */ +static int +tnamatch(const char *np) +{ + register const char *Np; + register char *Bp; + + Bp = tbuf; + if (*Bp == '#') + return(0); + for (;;) { + for (Np = np; *Np && *Bp == *Np; Bp++, Np++) + continue; + if (*Np == 0 && (*Bp == '|' || *Bp == ':' || *Bp == 0)) + return (1); + while (*Bp && *Bp != ':' && *Bp != '|') + Bp++; + if (*Bp == 0 || *Bp == ':') + return (0); + Bp++; + } +} + +/* + * tnchktc: check the last entry, see if it's tc=xxx. If so, + * recursively find xxx and append that entry (minus the names) + * to take the place of the tc=xxx entry. This allows termcap + * entries to say "like an HP2621 but doesn't turn on the labels". + * Note that this works because of the left to right scan. + */ +static int +tnchktc(void) +{ + register char *p, *q; + char tcname[16]; /* name of similar terminal */ + char tcbuf[TCBUFSIZE]; + char rmbuf[TCBUFSIZE]; + char *holdtbuf = tbuf, *holdtc; + int l; + + p = tbuf; + while (*p) { + holdtc = p = tskip(p); + if (!*p) + break; + if (*p++ != 't' || *p == 0 || *p++ != 'c') + continue; + if (*p++ != '=') { + bad: write(2, "Bad termcap entry\n", 18); + return (0); + } + for (q = tcname; *p && *p != ':'; p++) { + if (q >= &tcname[sizeof tcname - 1]) + goto bad; + *q++ = *p; + } + *q = '\0'; + if (++hopcount > MAXHOP) { + write(2, "Infinite tc= loop\n", 18); + return (0); + } + if (tgetent(tcbuf, tcname) != 1) { + hopcount = 0; /* unwind recursion */ + return(0); + } + hopcount--; + tbuf = holdtbuf; + strcpy(rmbuf, &p[1]); + for (q=tcbuf; *q != ':'; q++) + ; + l = holdtc - holdtbuf + strlen(rmbuf) + strlen(q); + if (l > TCBUFSIZE) { + write(2, "Termcap entry too long\n", 23); + break; + } + q++; + for (p = holdtc; *q; q++) + *p++ = *q; + strcpy(p, rmbuf); + p = holdtc; + } + return(1); +} + +/* + * Get an entry for terminal name in buffer bp, + * from the termcap file. Parse is very rudimentary; + * we just notice escaped newlines. + */ +int +tgetent(char *bp, const char *name) +{ + register char *cp; + register int c; + register int i = 0, cnt = 0; + char ibuf[TCBUFSIZE]; + int tf; + + tbuf = bp; + tf = -1; +#ifndef V6 + cp = getenv("TERMCAP"); + /* + * TERMCAP can have one of two things in it. It can be the + * name of a file to use instead of /etc/termcap. In this + * case it better start with a "/". Or it can be an entry to + * use so we don't have to read the file. In this case it + * has to already have the newlines crunched out. + */ + if (cp && *cp) { + if (*cp == '/') { + tf = open(cp, 0); + } else { + tbuf = cp; + c = tnamatch(name); + tbuf = bp; + if (c) { + strcpy(bp,cp); + return(tnchktc()); + } + } + } + if (tf < 0) + tf = open(E_TERMCAP, 0); +#else + tf = open(E_TERMCAP, 0); +#endif + if (tf < 0) + return (-1); + for (;;) { + cp = bp; + for (;;) { + if (i == cnt) { + cnt = read(tf, ibuf, TCBUFSIZE); + if (cnt <= 0) { + close(tf); + return (0); + } + i = 0; + } + c = ibuf[i++]; + if (c == '\n') { + if (cp > bp && cp[-1] == '\\'){ + cp--; + continue; + } + break; + } + if (cp >= bp+TCBUFSIZE) { + write(2,"Termcap entry too long\n", 23); + break; + } else + *cp++ = c; + } + *cp = 0; + + /* + * The real work for the match. + */ + if (tnamatch(name)) { + close(tf); + return(tnchktc()); + } + } +} + +/* + * Skip to the next field. Notice that this is very dumb, not + * knowing about \: escapes or any such. If necessary, :'s can be put + * into the termcap file in octal. + */ +static char * +tskip(register const char *bp) +{ + + while (*bp && *bp != ':') + bp++; + if (*bp == ':') + bp++; + return (char *)bp; +} + +/* + * Return the (numeric) option id. + * Numeric options look like + * li#80 + * i.e. the option string is separated from the numeric value by + * a # character. If the option is not found we return -1. + * Note that we handle octal numbers beginning with 0. + */ +int +tgetnum(char *id) +{ + register int i, base; + register char *bp = tbuf; + + for (;;) { + bp = tskip(bp); + if (*bp == 0) + return (-1); + if (*bp++ != id[0] || *bp == 0 || *bp++ != id[1]) + continue; + if (*bp == '@') + return(-1); + if (*bp != '#') + continue; + bp++; + base = 10; + if (*bp == '0') + base = 8; + i = 0; + while (isdigit((*bp & 0377))) + i *= base, i += *bp++ - '0'; + return (i); + } +} + +/* + * Handle a flag option. + * Flag options are given "naked", i.e. followed by a : or the end + * of the buffer. Return 1 if we find the option, or 0 if it is + * not given. + */ +int +tgetflag(char *id) +{ + register char *bp = tbuf; + + for (;;) { + bp = tskip(bp); + if (!*bp) + return (0); + if (*bp++ == id[0] && *bp != 0 && *bp++ == id[1]) { + if (!*bp || *bp == ':') + return (1); + else if (*bp == '@') + return(0); + } + } +} + +/* + * Get a string valued option. + * These are given as + * cl=^Z + * Much decoding is done on the strings, and the strings are + * placed in area, which is a ref parameter which is updated. + * No checking on area overflow. + */ +char * +tgetstr(char *id, char **area) +{ + register char *bp = tbuf; + + for (;;) { + bp = tskip(bp); + if (!*bp) + return (0); + if (*bp++ != id[0] || *bp == 0 || *bp++ != id[1]) + continue; + if (*bp == '@') + return(0); + if (*bp != '=') + continue; + bp++; + return (tdecode(bp, area)); + } +} + +/* + * Tdecode does the grung work to decode the + * string capability escapes. + */ +static char * +tdecode(register char *str, char **area) +{ + register char *cp; + register int c; + register char *dp; + int i; + + cp = *area; + while ((c = *str++) && c != ':') { + switch (c) { + + case '^': + c = *str++ & 037; + break; + + case '\\': + dp = "E\033^^\\\\::n\nr\rt\tb\bf\f"; + c = *str++; +nextc: + if (*dp++ == c) { + c = *dp++; + break; + } + dp++; + if (*dp) + goto nextc; + if (isdigit(c)) { + c -= '0', i = 2; + do + c <<= 3, c |= *str++ - '0'; + while (--i && isdigit(*str & 0377)); + } + break; + } + *cp++ = c; + } + *cp++ = 0; + str = *area; + *area = cp; + return (str); +} + +/* +*/ +static const char sccssl[] = "@(#)libterm.sl 1.7 (gritter) 11/23/04"; diff --git a/libterm/tgoto.c b/libterm/tgoto.c new file mode 100644 index 0000000..07316db --- /dev/null +++ b/libterm/tgoto.c @@ -0,0 +1,222 @@ +/* + * 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 = "@(#)tgoto.c 1.3 (gritter) 11/23/04"; +#endif +#endif + +/* from tgoto.c 5.1 (Berkeley) 6/5/85 */ + +#include "libterm.h" + +#define CTRL(c) (c & 037) + +#define MAXRETURNSIZE 64 + +#ifdef __STDC__ +#include <string.h> +#endif + +char *UP; +char *BC; + +/* + * Routine to perform cursor addressing. + * CM is a string containing printf type escapes to allow + * cursor addressing. We start out ready to print the destination + * line, and switch each time we print row or column. + * The following escapes are defined for substituting row/column: + * + * %d as in printf + * %2 like %2d + * %3 like %3d + * %. gives %c hacking special case characters + * %+x like %c but adding x first + * + * The codes below affect the state but don't use up a value. + * + * %>xy if value > x add y + * %r reverses row/column + * %i increments row/column (for one origin indexing) + * %% gives % + * %B BCD (2 decimal digits encoded in one byte) + * %D Delta Data (backwards bcd) + * + * all other characters are ``self-inserting''. + */ +char * +tgoto(char *CM, int destcol, int destline) +{ + static char result[MAXRETURNSIZE]; + static char added[10]; + char *cp = CM; + register char *dp = result; + register int c; + int oncol = 0; + register int which = destline; + + if (cp == 0) { +toohard: + /* + * ``We don't do that under BOZO's big top'' + */ + return ("OOPS"); + } + added[0] = 0; + while (c = *cp++) { + if (c != '%') { + *dp++ = c; + continue; + } + switch (c = *cp++) { + +#ifdef CM_N + case 'n': + destcol ^= 0140; + destline ^= 0140; + goto setwhich; +#endif + + case 'd': + if (which < 10) + goto one; + if (which < 100) + goto two; + /* fall into... */ + + case '3': + *dp++ = (which / 100) | '0'; + which %= 100; + /* fall into... */ + + case '2': +two: + *dp++ = which / 10 | '0'; +one: + *dp++ = which % 10 | '0'; +swap: + oncol = 1 - oncol; +setwhich: + which = oncol ? destcol : destline; + continue; + +#ifdef CM_GT + case '>': + if (which > *cp++) + which += *cp++; + else + cp++; + continue; +#endif + + case '+': + which += *cp++; + /* fall into... */ + + case '.': +/* casedot: */ + /* + * This code is worth scratching your head at for a + * while. The idea is that various weird things can + * happen to nulls, EOT's, tabs, and newlines by the + * tty driver, arpanet, and so on, so we don't send + * them if we can help it. + * + * Tab is taken out to get Ann Arbors to work, otherwise + * when they go to column 9 we increment which is wrong + * because bcd isn't continuous. We should take out + * the rest too, or run the thing through more than + * once until it doesn't make any of these, but that + * would make termlib (and hence pdp-11 ex) bigger, + * and also somewhat slower. This requires all + * programs which use termlib to stty tabs so they + * don't get expanded. They should do this anyway + * because some terminals use ^I for other things, + * like nondestructive space. + */ + if (which == 0 || which == CTRL('d') || /* which == '\t' || */ which == '\n') { + if (oncol || UP) /* Assumption: backspace works */ + /* + * Loop needed because newline happens + * to be the successor of tab. + */ + do { + strcat(added, oncol ? (BC ? BC : "\b") : UP); + which++; + } while (which == '\n'); + } + *dp++ = which; + goto swap; + + case 'r': + oncol = 1; + goto setwhich; + + case 'i': + destcol++; + destline++; + which++; + continue; + + case '%': + *dp++ = c; + continue; + +#ifdef CM_B + case 'B': + which = (which/10 << 4) + which%10; + continue; +#endif + +#ifdef CM_D + case 'D': + which = which - 2 * (which%16); + continue; +#endif + + default: + goto toohard; + } + } + strcpy(dp, added); + return (result); +} 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; +} |