From: Florian Ragwitz <rafl@debian.org>
Date: Sun, 5 Apr 2009 22:10:53 +0000 (+0200)
Subject: Implement String::substr.
X-Git-Tag: 0.16~6
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=51327b985f790ad6e3a7541f50885e30fbebf2f4;p=gitmo%2FMooseX-AttributeHelpers.git

Implement String::substr.
---

diff --git a/lib/MooseX/AttributeHelpers/MethodProvider/String.pm b/lib/MooseX/AttributeHelpers/MethodProvider/String.pm
index 86bf8bd..e8a5028 100644
--- a/lib/MooseX/AttributeHelpers/MethodProvider/String.pm
+++ b/lib/MooseX/AttributeHelpers/MethodProvider/String.pm
@@ -68,10 +68,33 @@ sub inc : method {
 }
 
 sub clear : method {
-    my ($attr, $reader, $writer ) = @_;
+    my ($attr, $reader, $writer) = @_;
     return sub { $writer->( $_[0], '' ) }
 }
 
+sub substr : method {
+    my ($attr, $reader, $writer) = @_;
+    return sub {
+        my $self = shift;
+        my $v = $reader->($self);
+
+        my $offset      = defined $_[0] ? shift : 0;
+        my $length      = defined $_[0] ? shift : CORE::length($v);
+        my $replacement = defined $_[0] ? shift : undef;
+
+        my $ret;
+        if (defined $replacement) {
+            $ret = CORE::substr($v, $offset, $length, $replacement);
+            $writer->($self, $v);
+        }
+        else {
+            $ret = CORE::substr($v, $offset, $length);
+        }
+
+        return $ret;
+    };
+}
+
 1;
 
 __END__