313 lines
6.8 KiB
C
313 lines
6.8 KiB
C
/*-
|
|
* Copyright (c) 1991 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
|
|
/*static char sccsid[] = "from: @(#)printf.c 5.4 (Berkeley) 6/16/91";*/
|
|
static char rcsid[] = "$Id: printf.c,v 1.4 1993/08/01 19:00:32 mycroft Exp $";
|
|
#endif /* not lint */
|
|
|
|
/*
|
|
* tc.printf.c: A public-domain, minimal printf/sprintf routine that prints
|
|
* through the putchar() routine. Feel free to use for
|
|
* anything... -- 7/17/87 Paul Placeway
|
|
*/
|
|
#include <strings.h>
|
|
#include <stdlib.h>
|
|
#if __STDC__
|
|
# include <stdarg.h>
|
|
#else
|
|
# include <varargs.h>
|
|
#endif
|
|
#include "csh.h"
|
|
#include "char.h"
|
|
#include "extern.h"
|
|
|
|
#ifdef lint
|
|
#undef va_arg
|
|
#define va_arg(a, b) (a ? (b) 0 : (b) 0)
|
|
#endif
|
|
|
|
#define INF 32766 /* should be bigger than any field to print */
|
|
|
|
static unsigned char buf[128];
|
|
|
|
static void
|
|
doprnt(addchar, sfmt, ap)
|
|
void (*addchar) ();
|
|
char *sfmt;
|
|
va_list ap;
|
|
{
|
|
register unsigned char *f, *bp;
|
|
register long l;
|
|
register unsigned long u;
|
|
register int i;
|
|
register int fmt;
|
|
register unsigned char pad = ' ';
|
|
int flush_left = 0, f_width = 0, prec = INF, hash = 0, do_long = 0;
|
|
int sign = 0;
|
|
|
|
f = (unsigned char *) sfmt;
|
|
for (; *f; f++) {
|
|
if (*f != '%') { /* then just out the char */
|
|
(*addchar) ((int) (*f));
|
|
}
|
|
else {
|
|
f++; /* skip the % */
|
|
|
|
if (*f == '-') { /* minus: flush left */
|
|
flush_left = 1;
|
|
f++;
|
|
}
|
|
|
|
if (*f == '0' || *f == '.') {
|
|
/* padding with 0 rather than blank */
|
|
pad = '0';
|
|
f++;
|
|
}
|
|
if (*f == '*') { /* field width */
|
|
f_width = va_arg(ap, int);
|
|
f++;
|
|
}
|
|
else if (Isdigit(*f)) {
|
|
f_width = atoi((char *) f);
|
|
while (Isdigit(*f))
|
|
f++; /* skip the digits */
|
|
}
|
|
|
|
if (*f == '.') { /* precision */
|
|
f++;
|
|
if (*f == '*') {
|
|
prec = va_arg(ap, int);
|
|
f++;
|
|
}
|
|
else if (Isdigit(*f)) {
|
|
prec = atoi((char *) f);
|
|
while (Isdigit(*f))
|
|
f++; /* skip the digits */
|
|
}
|
|
}
|
|
|
|
if (*f == '#') { /* alternate form */
|
|
hash = 1;
|
|
f++;
|
|
}
|
|
|
|
if (*f == 'l') { /* long format */
|
|
do_long = 1;
|
|
f++;
|
|
}
|
|
|
|
fmt = *f;
|
|
if (Isupper(fmt)) {
|
|
do_long = 1;
|
|
fmt = Tolower(fmt);
|
|
}
|
|
bp = buf;
|
|
switch (fmt) { /* do the format */
|
|
case 'd':
|
|
if (do_long)
|
|
l = va_arg(ap, long);
|
|
else
|
|
l = (long) (va_arg(ap, int));
|
|
if (l < 0) {
|
|
sign = 1;
|
|
l = -l;
|
|
}
|
|
do {
|
|
*bp++ = l % 10 + '0';
|
|
} while ((l /= 10) > 0);
|
|
if (sign)
|
|
*bp++ = '-';
|
|
f_width = f_width - (bp - buf);
|
|
if (!flush_left)
|
|
while (f_width-- > 0)
|
|
(*addchar) ((int) (pad));
|
|
for (bp--; bp >= buf; bp--)
|
|
(*addchar) ((int) (*bp));
|
|
if (flush_left)
|
|
while (f_width-- > 0)
|
|
(*addchar) ((int) (' '));
|
|
break;
|
|
|
|
case 'o':
|
|
case 'x':
|
|
case 'u':
|
|
if (do_long)
|
|
u = va_arg(ap, unsigned long);
|
|
else
|
|
u = (unsigned long) (va_arg(ap, unsigned));
|
|
if (fmt == 'u') { /* unsigned decimal */
|
|
do {
|
|
*bp++ = u % 10 + '0';
|
|
} while ((u /= 10) > 0);
|
|
}
|
|
else if (fmt == 'o') { /* octal */
|
|
do {
|
|
*bp++ = u % 8 + '0';
|
|
} while ((u /= 8) > 0);
|
|
if (hash)
|
|
*bp++ = '0';
|
|
}
|
|
else if (fmt == 'x') { /* hex */
|
|
do {
|
|
i = u % 16;
|
|
if (i < 10)
|
|
*bp++ = i + '0';
|
|
else
|
|
*bp++ = i - 10 + 'a';
|
|
} while ((u /= 16) > 0);
|
|
if (hash) {
|
|
*bp++ = 'x';
|
|
*bp++ = '0';
|
|
}
|
|
}
|
|
i = f_width - (bp - buf);
|
|
if (!flush_left)
|
|
while (i-- > 0)
|
|
(*addchar) ((int) (pad));
|
|
for (bp--; bp >= buf; bp--)
|
|
(*addchar) ((int) (*bp));
|
|
if (flush_left)
|
|
while (i-- > 0)
|
|
(*addchar) ((int) (' '));
|
|
break;
|
|
|
|
|
|
case 'c':
|
|
i = va_arg(ap, int);
|
|
(*addchar) ((int) (i));
|
|
break;
|
|
|
|
case 's':
|
|
bp = va_arg(ap, unsigned char *);
|
|
if (!bp)
|
|
bp = (unsigned char *) "(nil)";
|
|
f_width = f_width - strlen((char *) bp);
|
|
if (!flush_left)
|
|
while (f_width-- > 0)
|
|
(*addchar) ((int) (pad));
|
|
for (i = 0; *bp && i < prec; i++) {
|
|
(*addchar) ((int) (*bp));
|
|
bp++;
|
|
}
|
|
if (flush_left)
|
|
while (f_width-- > 0)
|
|
(*addchar) ((int) (' '));
|
|
|
|
break;
|
|
|
|
case '%':
|
|
(*addchar) ((int) ('%'));
|
|
break;
|
|
}
|
|
flush_left = 0, f_width = 0, prec = INF, hash = 0, do_long = 0;
|
|
sign = 0;
|
|
pad = ' ';
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static unsigned char *xstring;
|
|
static void
|
|
xaddchar(c)
|
|
int c;
|
|
{
|
|
*xstring++ = c;
|
|
}
|
|
|
|
|
|
void
|
|
#if __STDC__
|
|
xsprintf(char *str, char *fmt, ...)
|
|
#else
|
|
xsprintf(str, fmt, va_alist)
|
|
char *str;
|
|
char *fmt;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
va_list va;
|
|
|
|
#if __STDC__
|
|
va_start(va, fmt);
|
|
#else
|
|
va_start(va);
|
|
#endif
|
|
xstring = (unsigned char *) str;
|
|
doprnt(xaddchar, fmt, va);
|
|
va_end(va);
|
|
*xstring++ = '\0';
|
|
}
|
|
|
|
|
|
void
|
|
#if __STDC__
|
|
xprintf(char *fmt, ...)
|
|
#else
|
|
xprintf(fmt, va_alist)
|
|
char *fmt;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
va_list va;
|
|
|
|
#if __STDC__
|
|
va_start(va, fmt);
|
|
#else
|
|
va_start(va);
|
|
#endif
|
|
doprnt(xputchar, fmt, va);
|
|
va_end(va);
|
|
}
|
|
|
|
|
|
void
|
|
xvprintf(fmt, va)
|
|
char *fmt;
|
|
va_list va;
|
|
{
|
|
doprnt(xputchar, fmt, va);
|
|
}
|
|
|
|
void
|
|
xvsprintf(str, fmt, va)
|
|
char *str;
|
|
char *fmt;
|
|
va_list va;
|
|
{
|
|
xstring = (unsigned char *) str;
|
|
doprnt(xaddchar, fmt, va);
|
|
*xstring++ = '\0';
|
|
}
|