Should [:upper:] match title case?

[karl williamson <public@khwilliamson.com>]

Should [:upper:] match title case?

The documentation says it does.  But it doesn't.  There is an 
undocumented \p{IsTitle} that does.

Here is a complete list, I believe, of the \p properties that Perl 
defines that are not part of the Unicode standard.  The 2nd column is a 
comment.  Many of these are not documented anywhere that I'm aware of

\p{ASCII}                                  [[:ASCII:]]
\p{Alnum}                                  [[:Alnum:]]
\p{Alphabetic}                             [\p{L}\p{Nl}\p{OtherAlphabetic}]
\p{Alpha}                                  [[:Alpha:]]
\p{Any}                                    Alias for \p{Any} 
([\x{0000}-\x{10FFFF}])
\p{Any}                                    [\x{0000}-\x{10FFFF}]
\p{Assigned}                               All assigned code points
\p{Blank}                                  [[:Blank:]]
\p{Cntrl}                                  [[:Cntrl:]]
\p{DefaultIgnorableCodePoint} 
(?![\p{WhiteSpace}\x{FFF9}-\x{FFFB}])[\p{Cf}\p{Cc}\p{Cs}\p{NoncharacterCodePoint}\p{VariationSelector}\p{OtherDefaultIgnorableCodePoint}]
\p{Digit}                                  [[:Digit:]]
\p{Graph}                                  [[:Graph:]]
\p{HorizSpace}                             \h
\p{IdContinue} 
[\p{ID_Start}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\p{OtherIDContinue}]
\p{IdStart} 
[\p{Ll}\p{Lu}\p{Lt}\p{Lm}\p{Lo}\p{Nl}\p{OtherIDStart}]
\p{LC}                                     [\p{Ll}\p{Lu}\p{Lt}]
\p{Lowercase}                              [\p{Ll}\p{OtherLowercase}]
\p{Lower}                                  [[:Lower:]]
\p{Math}                                   [\p{Sm}\p{OtherMath}]
\p{Print}                                  [[:Print:]]
\p{Punct}                                  [[:Punct:]]
\p{SpacePerl}                              \s
\p{Space}                                  [[:Space:]]
\p{Title}                                  [[:Title:]]
\p{Uppercase}                              [\p{Lu}\p{OtherUppercase}]
\p{Upper}                                  [[:Upper:]]
\p{VertSpace}                              \v
\p{Word}                                   [[:Word:]]
\p{XDigit}                                 [[:XDigit:]]

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"Rafael Garcia-Suarez" <rgarciasuarez@gmail.com>

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