diff options
Diffstat (limited to 'ext/POSIX/POSIX.pod')
| -rw-r--r-- | ext/POSIX/POSIX.pod | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/ext/POSIX/POSIX.pod b/ext/POSIX/POSIX.pod index 992b2e594a..350f897abc 100644 --- a/ext/POSIX/POSIX.pod +++ b/ext/POSIX/POSIX.pod @@ -617,7 +617,7 @@ C</[[:graph:]]/> construct instead. This is identical to the C function, except that it can apply to a single character or to a whole string. Consider using regular expressions and the -C</[[:lower:]]/> construct instead. Do B<not> use C</a-z/>. +C</[[:lower:]]/> construct instead. Do B<not> use C</[a-z]/>. =item isprint @@ -636,12 +636,15 @@ C</[[:punct:]]/> construct instead. This is identical to the C function, except that it can apply to a single character or to a whole string. Consider using regular expressions and the C</[[:space:]]/> construct instead, or the C</\s/> construct. +(Note that C</\s/> and C</[[:space:]]/> are slightly different in that +C</[[:space:]]/> can normally match a vertical tab, while C</\s/> does +not.) =item isupper This is identical to the C function, except that it can apply to a single character or to a whole string. Consider using regular expressions and the -C</[[:upper:]]/> construct instead. Do B<not> use C</A-Z/>. +C</[[:upper:]]/> construct instead. Do B<not> use C</[A-Z]/>. =item isxdigit |