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Bug 624 wants quoted char support for printf, so you can do something like:

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printf '%d\n' '"x"'
and have it print out 120.  This is the smallest implementation I can think
of at the moment.
This commit is contained in:
Rob Landley 2006-01-06 20:28:05 +00:00
parent f8ec1b51f3
commit 251161f75c
1 changed files with 50 additions and 54 deletions
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104
coreutils/printf.c
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@ -1,20 +1,11 @@
/* vi: set sw=4 ts=4: */ /* vi: set sw=4 ts=4: */
/* printf - format and print data /* printf - format and print data
Copyright (C) 90, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify Copyright 1999 Dave Cinege
it under the terms of the GNU General Public License as published by Portions copyright (C) 1990-1996 Free Software Foundation, Inc.
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, Licensed under GPL v2 or later, see file LICENSE in this tarball for details.
but WITHOUT ANY WARRANTY; without even the implied warranty of */
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Usage: printf format [argument...] /* Usage: printf format [argument...]
@ -58,14 +49,56 @@
#include <assert.h> #include <assert.h>
#include "busybox.h" #include "busybox.h"
static double xstrtod __P((char *s));
static long xstrtol __P((char *s));
static unsigned long xstrtoul __P((char *s));
static void print_esc_string __P((char *str));
static int print_formatted __P((char *format, int argc, char **argv)); static int print_formatted __P((char *format, int argc, char **argv));
static void print_direc __P( (char *start, size_t length, static void print_direc __P( (char *start, size_t length,
int field_width, int precision, char *argument)); int field_width, int precision, char *argument));
typedef int (*converter)(char *arg, void *result);
void multiconvert(char *arg, void *result, converter convert)
{
char s[16];
if (*arg == '"' || *arg == '\'') {
sprintf(s,"%d",(unsigned)*(++arg));
arg=s;
}
if(convert(arg,result)) fprintf(stderr, "%s", arg);
}
static unsigned long xstrtoul(char *arg)
{
unsigned long result;
multiconvert(arg,&result, (converter)safe_strtoul);
return result;
}
static long xstrtol(char *arg)
{
long result;
multiconvert(arg, &result, (converter)safe_strtol);
return result;
}
static double xstrtod(char *arg)
{
double result;
multiconvert(arg, &result, (converter)safe_strtod);
return result;
}
static void print_esc_string(char *str)
{
for (; *str; str++) {
if (*str == '\\') {
str++;
putchar(bb_process_escape_sequence((const char **)&str));
} else {
putchar(*str);
}
}
}
int printf_main(int argc, char **argv) int printf_main(int argc, char **argv)
{ {
char *format; char *format;
@ -277,40 +310,3 @@ print_direc(char *start, size_t length, int field_width, int precision,
free(p); free(p);
} }
static unsigned long xstrtoul(char *arg)
{
unsigned long result;
if (safe_strtoul(arg, &result))
fprintf(stderr, "%s", arg);
return result;
}
static long xstrtol(char *arg)
{
long result;
if (safe_strtol(arg, &result))
fprintf(stderr, "%s", arg);
return result;
}
static double xstrtod(char *arg)
{
double result;
if (safe_strtod(arg, &result))
fprintf(stderr, "%s", arg);
return result;
}
static void print_esc_string(char *str)
{
for (; *str; str++) {
if (*str == '\\') {
str++;
putchar(bb_process_escape_sequence((const char **)&str));
} else {
putchar(*str);
}
}
}