diff options
Diffstat (limited to 'libbb/skip_whitespace.c')
| -rw-r--r-- | libbb/skip_whitespace.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/libbb/skip_whitespace.c b/libbb/skip_whitespace.c index e85f3859f..7b123261b 100644 --- a/libbb/skip_whitespace.c +++ b/libbb/skip_whitespace.c @@ -11,15 +11,22 @@ char* FAST_FUNC skip_whitespace(const char *s) { - /* NB: isspace('\0') returns 0 */ - while (isspace(*s)) ++s; + /* In POSIX/C locale (the only locale we care about: do we REALLY want + * to allow Unicode whitespace in, say, .conf files? nuts!) + * isspace is only these chars: "\t\n\v\f\r" and space. + * "\t\n\v\f\r" happen to have ASCII codes 9,10,11,12,13. + * Use that. + */ + while (*s == ' ' || (unsigned char)(*s - 9) <= (13 - 9)) + s++; return (char *) s; } char* FAST_FUNC skip_non_whitespace(const char *s) { - while (*s && !isspace(*s)) ++s; + while (*s != '\0' && *s != ' ' && (unsigned char)(*s - 9) > (13 - 9)) + s++; return (char *) s; } |