X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/ab3df797d6f1e2dc13fb1b1fdee8c006bab967be..4cabf874ee37b27dc1844a78d68b2cacf5caaae8:/lib/overload.pm

diff --git a/lib/overload.pm b/lib/overload.pm
index 8960171..7d09d69 100644
--- a/lib/overload.pm
+++ b/lib/overload.pm
@@ -1,6 +1,6 @@
 package overload;
 
-our $VERSION = '1.09';
+our $VERSION = '1.10';
 
 sub nil {}
 
@@ -135,7 +135,7 @@ sub mycan {				# Real can would leave stubs.
 	 unary		  => "neg ! ~",
 	 mutators	  => '++ --',
 	 func		  => "atan2 cos sin exp abs log sqrt int",
-	 conversion	  => 'bool "" 0+',
+	 conversion	  => 'bool "" 0+ qr',
 	 iterators	  => '<>',
          filetest         => "-X",
 	 dereferencing	  => '${} @{} %{} &{} *{}',
@@ -400,15 +400,20 @@ floating-point-like types one should follow the same semantic.  If
 C<int> is unavailable, it can be autogenerated using the overloading of
 C<0+>.
 
-=item * I<Boolean, string and numeric conversion>
+=item * I<Boolean, string, numeric and regexp conversions>
 
-    'bool', '""', '0+',
+    'bool', '""', '0+', 'qr'
 
-If one or two of these operations are not overloaded, the remaining ones can
-be used instead.  C<bool> is used in the flow control operators
-(like C<while>) and for the ternary C<?:> operation.  These functions can
-return any arbitrary Perl value.  If the corresponding operation for this value
-is overloaded too, that operation will be called again with this value.
+If one or two of these operations are not overloaded, the remaining ones
+can be used instead.  C<bool> is used in the flow control operators
+(like C<while>) and for the ternary C<?:> operation; C<qr> is used for
+the RHS of C<=~> and when an object is interpolated into a regexp.
+
+C<bool>, C<"">, and C<0+> can return any arbitrary Perl value.  If the
+corresponding operation for this value is overloaded too, that operation
+will be called again with this value. C<qr> must return a compiled
+regexp, or a ref to a compiled regexp (such as C<qr//> returns), and any
+further overloading on the return value will be ignored.
 
 As a special case if the overload returns the object itself then it will
 be used directly. An overloaded conversion returning the object is
@@ -518,7 +523,7 @@ A computer-readable form of the above table is available in the hash
  unary		  => 'neg ! ~',
  mutators	  => '++ --',
  func		  => 'atan2 cos sin exp abs log sqrt',
- conversion	  => 'bool "" 0+',
+ conversion	  => 'bool "" 0+ qr',
  iterators	  => '<>',
  filetest         => '-X',
  dereferencing	  => '${} @{} %{} &{} *{}',
@@ -693,8 +698,8 @@ is not defined.
 
 =item I<Conversion operations>
 
-String, numeric, and boolean conversion are calculated in terms of one
-another if not all of them are defined.
+String, numeric, boolean and regexp conversions are calculated in terms
+of one another if not all of them are defined.
 
 =item I<Increment and decrement>