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| author | Karl Williamson <public@khwilliamson.com> | 2011-07-05 20:26:37 -0600 |
|---|---|---|
| committer | Karl Williamson <public@khwilliamson.com> | 2011-07-05 20:32:05 -0600 |
| commit | 582da94270934217d199ef2000e655c89b0e769d (patch) | |
| tree | f554fe9d346e2624f8937162f6154fdc312b190f /pod/perlrecharclass.pod | |
| parent | 18509dec2df0829b864e95427bb907860a9d5744 (diff) | |
| download | perl-582da94270934217d199ef2000e655c89b0e769d.tar.gz | |
perlrecharclass: nits
Diffstat (limited to 'pod/perlrecharclass.pod')
| -rw-r--r-- | pod/perlrecharclass.pod | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/pod/perlrecharclass.pod b/pod/perlrecharclass.pod index 89e93c06c6..f0a6190f57 100644 --- a/pod/perlrecharclass.pod +++ b/pod/perlrecharclass.pod @@ -89,7 +89,8 @@ names are respectively C<COLON>, C<4F>, and C<F4>. =head3 Digits C<\d> matches a single character considered to be a decimal I<digit>. -If the C</a> modifier in effect, it matches [0-9]. Otherwise, it +If the C</a> regular expression modifier in effect, it matches [0-9]. +Otherwise, it matches anything that is matched by C<\p{Digit}>, which includes [0-9]. (An unlikely possible exception is that under locale matching rules, the current locale might not have [0-9] matched by C<\d>, and/or might match @@ -277,7 +278,7 @@ however considered vertical whitespace. The following table is a complete listing of characters matched by C<\s>, C<\h> and C<\v> as of Unicode 6.0. -The first column gives the code point of the character (in hex format), +The first column gives the Unicode code point of the character (in hex format), the second column gives the (Unicode) name. The third column indicates by which class(es) the character is matched (assuming no locale or EBCDIC code page is in effect that changes the C<\s> matching). @@ -552,13 +553,14 @@ that normally say that a given character matches a sequence of multiple characters under caseless C</i> matching, which otherwise could be highly confusing: - "ss" =~ /^[^\xDF]+$/ui; + "ss" =~ /^[^\xDF]+$/ui; # Matches! This should match any sequences of characters that aren't C<\xDF> nor what C<\xDF> matches under C</i>. C<"s"> isn't C<\xDF>, but Unicode says that C<"ss"> is what C<\xDF> matches under C</i>. So which one "wins"? Do you fail the match because the string has C<ss> or accept it -because it has an C<s> followed by another C<s>? +because it has an C<s> followed by another C<s>? Perl has chosen the +latter. Examples: @@ -650,8 +652,8 @@ The other counterpart, in the column labelled "Full-range Unicode", matches any appropriate characters in the full Unicode character set. For example, C<\p{Alpha}> matches not just the ASCII alphabetic characters, but any character in the entire Unicode character set considered alphabetic. -The column labelled "backslash sequence" is a (short) synonym for -the Full-range Unicode form. +An entry in the column labelled "backslash sequence" is a (short) +synonym for the Full-range Unicode form. [[:...:]] ASCII-range Full-range backslash Note Unicode Unicode sequence |