the operand is an identifier, a string consisting of a minus sign
concatenated with the identifier is returned. Otherwise, if the string
starts with a plus or minus, a string starting with the opposite sign
-is returned. One effect of these rules is that C<-bareword> is equivalent
-to C<"-bareword">.
+is returned. One effect of these rules is that -bareword is equivalent
+to "-bareword".
Unary "~" performs bitwise negation, i.e., 1's complement. For
example, C<0666 & ~027> is 0640. (See also L<Integer Arithmetic> and
supposed to be searched, substituted, or transliterated instead of the default
$_. When used in scalar context, the return value generally indicates the
success of the operation. Behavior in list context depends on the particular
-operator. See L</"Regexp Quote-Like Operators"> for details.
+operator. See L</"Regexp Quote-Like Operators"> for details and
+L<perlretut> for examples using these operators.
If the right argument is an expression rather than a search pattern,
substitution, or transliteration, it is interpreted as a search pattern at run
both its arguments into the list.
The C<< => >> operator is a synonym for the comma, but forces any word
-to its left to be interpreted as a string (as of 5.001). It is helpful
-in documenting the correspondence between keys and values in hashes,
-and other paired elements in lists.
+(consisting entirely of word characters) to its left to be interpreted
+as a string (as of 5.001). If the argument on the left is not a word,
+it is first interpreted as an expression, and then the string value of
+that is used.
+
+The C<< => >> operator is helpful in documenting the correspondence
+between keys and values in hashes, and other paired elements in lists.
=head2 List Operators (Rightward)
projects / p5sagit/p5-mst-13.2.git / blobdiff