| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* | ||||
| 3 | * Utility routines. | ||||
| 4 | * | ||||
| Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 5 | * Copyright (C) many different people. |
| Eric Andersen | cb81e64 | 2003-07-14 21:21:08 +0000 | [diff] [blame] | 6 | * If you wrote this, please acknowledge your work. |
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 7 | * |
| Bernhard Reutner-Fischer | b1629b1 | 2006-05-19 19:29:19 +0000 | [diff] [blame] | 8 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 9 | */ |
| 10 | |||||
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 11 | #include "libbb.h" |
| 12 | |||||
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 13 | void trim(char *s) |
| 14 | { | ||||
| Rob Landley | 828548a | 2005-09-01 10:23:57 +0000 | [diff] [blame] | 15 | size_t len = strlen(s); |
| 16 | size_t lws; | ||||
| Mark Whitley | 4b66dab | 2001-04-23 17:04:41 +0000 | [diff] [blame] | 17 | |
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 18 | /* trim trailing whitespace */ |
| Rob Landley | 828548a | 2005-09-01 10:23:57 +0000 | [diff] [blame] | 19 | while (len && isspace(s[len-1])) --len; |
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 20 | |
| 21 | /* trim leading whitespace */ | ||||
| Denis Vlasenko | 51742f4 | 2007-04-12 00:32:05 +0000 | [diff] [blame] | 22 | if (len) { |
| Rob Landley | 828548a | 2005-09-01 10:23:57 +0000 | [diff] [blame] | 23 | lws = strspn(s, " \n\r\t\v"); |
| 24 | memmove(s, s + lws, len -= lws); | ||||
| 25 | } | ||||
| Denis Vlasenko | 51742f4 | 2007-04-12 00:32:05 +0000 | [diff] [blame] | 26 | s[len] = '\0'; |
| Eric Andersen | aad1a88 | 2001-03-16 22:47:14 +0000 | [diff] [blame] | 27 | } |