(W misc) The pattern match (C<//>), substitution (C<s///>), and
transliteration (C<tr///>) operators work on scalar values. If you apply
one of them to an array or a hash, it will convert the array or hash to
-a scalar value -- the length of an array, or the population info of a
-hash -- and then work on that scalar value. This is probably not what
+a scalar value (the length of an array, or the population info of a
+hash) and then work on that scalar value. This is probably not what
you meant to do. See L<perlfunc/grep> and L<perlfunc/map> for
alternatives.
(P) Perl detected an attempt to copy a value to an internal type that cannot
be directly assigned not.
+=item Cannot find encoding "%s"
+
+(S io) You tried to apply an encoding that did not exist to a filehandle,
+either with open() or binmode().
+
=item Can only compress unsigned integers in pack
(F) An argument to pack("w",...) was not an integer. The BER compressed
=item Can't find %s character property "%s"
(F) You used C<\p{}> or C<\P{}> but the character property by that name
-could not be found. Maybe you misspelled the name of the property
-(remember that the names of character properties consist only of
-alphanumeric characters), or maybe you forgot the C<Is> or C<In> prefix?
+could not be found. Maybe you misspelled the name of the property?
+See L<perluniprops/Properties accessible through \p{} and \P{}>
+for a complete list of available properties.
=item Can't find label %s
=item Can't find Unicode property definition "%s"
(F) You may have tried to use C<\p> which means a Unicode property (for
-example C<\p{Lu}> is all uppercase letters). If you did mean to use a
-Unicode property, see L<perlunicode> for the list of known properties.
+example C<\p{Lu}> matches all uppercase letters). If you did mean to use a
+Unicode property, see
+L<perluniprops/Properties accessible through \p{} and \P{}>
+for a complete list of available properties.
If you didn't mean to use a Unicode property, escape the C<\p>, either
by C<\\p> (just the C<\p>) or by C<\Q\p> (the rest of the string, until
possible C<\E>).
=item Illegal character in prototype for %s : %s
-(W syntax) An illegal character was found in a prototype declaration. Legal
-characters in prototypes are $, @, %, *, ;, [, ], &, and \.
+(W illegalproto) An illegal character was found in a prototype declaration.
+Legal characters in prototypes are $, @, %, *, ;, [, ], &, and \.
=item Illegal declaration of anonymous subroutine
length/code combination tried to obtain more data. This results in
an undefined value for the length. See L<perlfunc/pack>.
+=item Lexing code attempted to stuff non-Latin-1 character into Latin-1 input
+
+(F) An extension is attempting to insert text into the current parse
+(using L<lex_stuff_pvn_flags|perlapi/lex_stuff_pvn_flags> or similar), but
+tried to insert a character that couldn't be part of the current input.
+This is an inherent pitfall of the stuffing mechanism, and one of the
+reasons to avoid it. Where it is necessary to stuff, stuffing only
+plain ASCII is recommended.
+
+=item Lexing code internal error (%s)
+
+(F) Lexing code supplied by an extension violated the lexer's API in a
+detectable way.
+
=item listen() on closed socket %s
(W closed) You tried to do a listen on a closed socket. Did you forget
by that? lstat() makes sense only on filenames. (Perl did a fstat()
instead on the filehandle.)
+=item lvalue attribute ignored after the subroutine has been defined
+
+(W misc) Making a subroutine an lvalue subroutine after it has been defined
+by declaring the subroutine with a lvalue attribute is not
+possible. To make the the subroutine a lvalue subroutine add the
+lvalue attribute to the definition, or put the the declaration before
+the definition.
+
=item Lvalue subs returning %s not implemented yet
(F) Due to limitations in the current implementation, array and hash
(W syntax) An underscore (underbar) in a numeric constant did not
separate two digits.
+=item Missing argument in %s
+
+(W uninitialized) A printf-type format required more arguments than were
+supplied.
+
=item Missing argument to -%c
(F) The argument to the indicated command line switch must follow
=item Prototype after '%c' for %s : %s
-(W syntax) A character follows % or @ in a prototype. This is useless,
+(W illegalproto) A character follows % or @ in a prototype. This is useless,
since % and @ gobble the rest of the subroutine arguments.
=item Prototype mismatch: %s vs %s
(W utf8) Certain codepoints, such as U+FFFE and U+FFFF, are defined by the
Unicode standard to be non-characters. Those are legal codepoints, but are
reserved for internal use; so, applications shouldn't attempt to exchange
-them. If you know what you are doing you can turn off this warning by
-C<no warnings 'utf8';>.
+them. In some cases, this message is also given if you use a codepoint that
+isn't in Unicode--that is it is above the legal maximum of U+10FFFF. These
+aren't legal at all in Unicode, so they are illegal for interchange, but can be
+used internally in a Perl program. If you know what you are doing you can turn
+off this warning by C<no warnings 'utf8';>.
=item Unknown BYTEORDER
operator. Since C<split> always tries to match the pattern
repeatedly, the C</g> has no effect.
+=item Use of "goto" to jump into a construct is deprecated
+
+(D deprecated) Using C<goto> to jump from an outer scope into an inner
+scope is deprecated and should be avoided.
+
=item Use of inherited AUTOLOAD for non-method %s() is deprecated
(D deprecated) As an (ahem) accidental feature, C<AUTOLOAD> subroutines
0xDFFF (inclusive). That range is reserved exclusively for the use of
UTF-16 encoding (by having two 16-bit UCS-2 characters); but Perl
encodes its characters in UTF-8, so what you got is a very illegal
-character. If you really know what you are doing you can turn off
+character. If you really really know what you are doing you can turn off
this warning by C<no warnings 'utf8';>.
=item Value of %s can be "0"; test with defined()
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