mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 03:58:17 +00:00
e772cb30f6
isspace() and strim() are not in the typical user-mode string.h, so put them in a separate compilation unit so that they can be built into tools that need them independent of the other common string functions. This allows code shared by u-boot and the linux user-mode tools to link. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
52 lines
929 B
C
52 lines
929 B
C
/*
|
|
* linux/lib/string.c
|
|
*
|
|
* Copyright (C) 1991, 1992 Linus Torvalds
|
|
*/
|
|
|
|
#ifdef USE_HOSTCC
|
|
#include <stdio.h>
|
|
#endif
|
|
|
|
#include <linux/ctype.h>
|
|
#include <linux/string.h>
|
|
|
|
/**
|
|
* skip_spaces - Removes leading whitespace from @str.
|
|
* @str: The string to be stripped.
|
|
*
|
|
* Returns a pointer to the first non-whitespace character in @str.
|
|
*/
|
|
char *skip_spaces(const char *str)
|
|
{
|
|
while (isspace(*str))
|
|
++str;
|
|
return (char *)str;
|
|
}
|
|
|
|
/**
|
|
* strim - Removes leading and trailing whitespace from @s.
|
|
* @s: The string to be stripped.
|
|
*
|
|
* Note that the first trailing whitespace is replaced with a %NUL-terminator
|
|
* in the given string @s. Returns a pointer to the first non-whitespace
|
|
* character in @s.
|
|
*/
|
|
char *strim(char *s)
|
|
{
|
|
size_t size;
|
|
char *end;
|
|
|
|
s = skip_spaces(s);
|
|
size = strlen(s);
|
|
if (!size)
|
|
return s;
|
|
|
|
end = s + size - 1;
|
|
while (end >= s && isspace(*end))
|
|
end--;
|
|
*(end + 1) = '\0';
|
|
|
|
return s;
|
|
}
|