We have isspace() which may be used incorrectly as one might expect that it has the same meaning as POSIX isspace(). Also, kernel has outdated comment about of what is space and hard space exactely.
Signed-off-by: Ilya V. Matveychikov <[email protected]> --- include/linux/ctype.h | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/include/linux/ctype.h b/include/linux/ctype.h index 653589e..5c03748 100644 --- a/include/linux/ctype.h +++ b/include/linux/ctype.h @@ -11,9 +11,20 @@ #define _D 0x04 /* digit */ #define _C 0x08 /* cntrl */ #define _P 0x10 /* punct */ -#define _S 0x20 /* white space (space/lf/tab) */ +#define _S 0x20 /* space + 0x09 - Horizontal Tab (HT) + 0x0A - Line Feed (LF) + 0x0B - Vertical Tab (VT) + 0x0C - Form Feed (FF) + 0x0D - Carriage Return (CR) + 0x20 - Space (SP) + 0xA0 - Non-Breakable Space (NBSP) + */ #define _X 0x40 /* hex digit */ -#define _SP 0x80 /* hard space (0x20) */ +#define _SP 0x80 /* hard space + 0x20 - Space (SP) + 0xA0 - Non-Breakable Space (NBSP) + */ extern const unsigned char _ctype[]; -- 2.8.0
