Commit d0cbec4a authored by Daniel Verkamp's avatar Daniel Verkamp
Browse files

lib/util: add spdk_str_trim() 



Function to trim leading and trailing whitespace from a string.

Originally based on code imported from istgt.

Change-Id: I87abe584130bdf4930098fadb8e57291f18eda7f
Signed-off-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
parent e56aab98

include/spdk/string.h

+7 −0
Original line number Diff line number Diff line
@@ -67,6 +67,13 @@ char *spdk_strlwr(char *s); 
 */

char *spdk_strsepq(char **stringp, const char *delim);



/**

 * Trim whitespace from a string in place.

 *

 * \param s String to trim.

 */

char *spdk_str_trim(char *s);



#ifdef __cplusplus

}

#endif

lib/util/string.c

+34 −0
Original line number Diff line number Diff line
@@ -166,3 +166,37 @@ spdk_strsepq(char **stringp, const char *delim) 


	return p;

}



char *

spdk_str_trim(char *s)

{

	char *p, *q;



	if (s == NULL) {

		return NULL;

	}



	/* remove header */

	p = s;

	while (*p != '\0' && isspace(*p)) {

		p++;

	}



	/* remove tailer */

	q = p + strlen(p);

	while (q - 1 >= p && isspace(*(q - 1))) {

		q--;

		*q = '\0';

	}



	/* if remove header, move */

	if (p != s) {

		q = s;

		while (*p != '\0') {

			*q++ = *p++;

		}

		*q = '\0';

	}



	return s;

}