diff options
author | Rob Landley <rob@landley.net> | 2006-01-06 23:28:05 +0300 |
---|---|---|
committer | Rob Landley <rob@landley.net> | 2006-01-06 23:28:05 +0300 |
commit | 251161f75c0895a1138f87bd80d9bcc38e567444 (patch) | |
tree | 2b121941a13619a7851da8d9f8e1663ad798ae4d /coreutils/printf.c | |
parent | f8ec1b51f39b15d2d020934b2f3eb8d70e9da3e8 (diff) |
Bug 624 wants quoted char support for printf, so you can do something like:
printf '%d\n' '"x"'
and have it print out 120. This is the smallest implementation I can think
of at the moment.
Diffstat (limited to 'coreutils/printf.c')
-rw-r--r-- | coreutils/printf.c | 104 |
1 files changed, 50 insertions, 54 deletions
diff --git a/coreutils/printf.c b/coreutils/printf.c index da5e46a58..697a1c055 100644 --- a/coreutils/printf.c +++ b/coreutils/printf.c @@ -1,20 +1,11 @@ /* vi: set sw=4 ts=4: */ /* 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 - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + Copyright 1999 Dave Cinege + Portions copyright (C) 1990-1996 Free Software Foundation, Inc. - This program is distributed in the hope that it will be useful, - 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. */ + Licensed under GPL v2 or later, see file LICENSE in this tarball for details. +*/ /* Usage: printf format [argument...] @@ -58,14 +49,56 @@ #include <assert.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 void print_direc __P( (char *start, size_t length, 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) { char *format; @@ -277,40 +310,3 @@ print_direc(char *start, size_t length, int field_width, int precision, 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); - } - - } -} |