164 lines
4.2 KiB
C
164 lines
4.2 KiB
C
/* $NetBSD: tputws.c,v 1.1 2005/05/15 21:11:13 christos Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)tputs.c 8.1 (Berkeley) 6/4/93";
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#else
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__RCSID("$NetBSD: tputws.c,v 1.1 2005/05/15 21:11:13 christos Exp $");
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#endif
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#endif /* not lint */
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#include <assert.h>
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#include <wctype.h>
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#include <wchar.h>
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#include <termcap.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "termcap_private.h"
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#undef ospeed
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/* internal functions */
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int _tputws_convert(const wchar_t **, int);
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/*
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* The following array gives the number of tens of milliseconds per
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* character for each speed as returned by gtty. Thus since 300
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* baud returns a 7, there are 33.3 milliseconds per char at 300 baud.
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*/
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extern short ospeed;
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extern char PC;
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int
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_tputws_convert(const wchar_t **ptr, int affcnt)
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{
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int i = 0;
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_DIAGASSERT(ptr != NULL);
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_DIAGASSERT(*ptr != NULL);
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/*
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* Convert the number representing the delay.
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*/
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if (iswdigit(**ptr)) {
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do
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i = i * 10 + *(*ptr)++ - '0';
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while (iswdigit(**ptr));
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}
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i *= 10;
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if (*(*ptr) == '.') {
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(*ptr)++;
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if (iswdigit(**ptr))
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i += *(*ptr) - '0';
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/*
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* Only one digit to the right of the decimal point.
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*/
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while (iswdigit(**ptr))
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(*ptr)++;
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}
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/*
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* If the delay is followed by a `*', then
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* multiply by the affected lines count.
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*/
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if (*(*ptr) == '*')
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(*ptr)++, i *= affcnt;
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return i;
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}
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int
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t_putws(struct tinfo *info, const wchar_t *cp, int affcnt,
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void (*outc)(wchar_t, void *), void *args)
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{
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int i = 0;
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size_t limit;
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int mspc10;
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char pad[2], *pptr;
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char *pc;
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/* XXX: info may be NULL ? */
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/* cp is handled below */
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_DIAGASSERT(outc != NULL);
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_DIAGASSERT(args != NULL);
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if (info != NULL) {
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/*
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* if we have info then get the pad char from the
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* termcap entry if it exists, otherwise use the
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* default NUL char.
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*/
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pptr = pad;
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limit = sizeof(pad);
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pc = t_getstr(info, "pc", &pptr, &limit);
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if (pc == NULL)
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pad[0] = '\0';
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else
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free(pc);
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}
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if (cp == 0)
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return -1;
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/* scan and convert delay digits (if any) */
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i = _tputws_convert(&cp, affcnt);
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/*
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* The guts of the string.
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*/
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while (*cp)
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(*outc)(*cp++, args);
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/*
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* If no delay needed, or output speed is
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* not comprehensible, then don't try to delay.
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*/
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if (i == 0)
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return 0;
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if (ospeed <= 0 || ospeed >= TMSPC10SIZE)
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return 0;
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/*
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* Round up by a half a character frame,
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* and then do the delay.
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* Too bad there are no user program accessible programmed delays.
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* Transmitting pad characters slows many
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* terminals down and also loads the system.
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*/
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mspc10 = __tmspc10[ospeed];
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i += mspc10 / 2;
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for (i /= mspc10; i > 0; i--)
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(*outc)(pad[0], args);
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return 0;
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}
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