From: Marco Schlumpp <marco.schlumpp@gmail.com>
Date: Fri, 25 Mar 2022 15:07:17 +0000 (+0100)
Subject: lib/nolibc: Implement isblank function
X-Git-Tag: RELEASE-0.13.0~85
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=fb70e9f5e09d62cb5eca12702620047ff8e4982c;p=unikraft%2Funikraft.git

lib/nolibc: Implement isblank function

This function determines whether the given character is a space or tab.

Signed-off-by: Marco Schlumpp <marco.schlumpp@gmail.com>
Reviewed-by: Razvan Deaconescu <razvand@unikraft.io>
Reviewed-by: Marc Rittinghaus <marc.rittinghaus@unikraft.io>
Approved-by: Marc Rittinghaus <marc.rittinghaus@unikraft.io>
Tested-by: Unikraft CI <monkey@unikraft.io>
GitHub-Closes: #627
---

diff --git a/lib/nolibc/include/ctype.h b/lib/nolibc/include/ctype.h
index c3bbeb67c..8172eeeb9 100644
--- a/lib/nolibc/include/ctype.h
+++ b/lib/nolibc/include/ctype.h
@@ -65,6 +65,8 @@ extern const unsigned char _nolibc_ctype[];
 #define isascii(c)	(((unsigned char)(c)) <= 0x7f)
 #define toascii(c)	((int)(((unsigned char)(c)) & 0x7f))
 
+#define isblank(c)	((c) == ' ' || (c) == '\t')
+
 static inline int tolower(int c)
 {
 	if (isupper(c))