OpenSolaris_b135/cmd/refer/refer4.c

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved. The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include "refer..c"
#include <locale.h>

#define	punctuat(c)	(c == '.' || c == '?' || c == '!' || \
			    c == ',' || c == ';' || c == ':')

static int gate = 0;
static char buff[BUFSIZ];

extern void err();

char *trimnl(char *);

void
output(char *s)
{
	if (gate)
		fputs(buff, ftemp);
	else
		gate = 1;
	strcpy(buff, s);
	if (strlen(buff) > BUFSIZ)
		err(gettext("one buff too big (%d)!"), BUFSIZ);
}

void
append(char *s)
{
	char *p;
	int lch;

	trimnl(buff);
	for (p = buff; *p; p++)
		;
	lch = *--p;
	if (postpunct && punctuat(lch))
		*p = NULL;
	else /* pre-punctuation */
		switch (lch) {
		case '.':
		case '?':
		case '!':
		case ',':
		case ';':
		case ':':
			*p++ = lch;
			*p = NULL;
		}
	strcat(buff, s);
	if (postpunct)
		switch (lch) {
		case '.':
		case '?':
		case '!':
		case ',':
		case ';':
		case ':':
			for (p = buff; *p; p++)
				;
			if (*--p == '\n')
				*p = NULL;
			*p++ = lch;
			*p++ = '\n';
			*p = NULL;
		}
	if (strlen(buff) > BUFSIZ)
		err(gettext("output buff too long (%d)"), BUFSIZ);
}

void
flout(void)
{
	if (gate)
		fputs(buff, ftemp);
	gate = 0;
}

char *
trimnl(char *ln)
{
	char *p = ln;

	while (*p)
		p++;
	p--;
	if (*p == '\n')
		*p = 0;
	return (ln);
}