Added some examples to .prematch and .postmatch

Author: Jan-Olof Hendig

doc/Type/Match.pod6

@@ -68,12 +68,34 @@ Returns a hash of named submatches.
 
 =head2 method prematch
 
+Defined as:
+
+    method prematch(Match:D:) returns Str:D
+
 Returns the part of the original string leading up to the match.
 
+    'abcdefg' ~~ /cd/;
+    say $/.prematch;          # ab
+
+    # will return a list of three match objects
+    "abc123def" ~~ m:g/\d/;
+    say $/.[1].prematch;      # abc1
+
 =head2 method postmatch
 
+Defined as:
+
+    method postmatch(Match:D:) returns Str:D
+
 Returns the part of the original string following the match.
 
+    'abcdefg' ~~ /cd/;
+    say $/.postmatch;         # efg
+
+    # will return a list of three match objects
+    "abc123def" ~~ m:g/\d/;
+    say $/.[1].postmatch;     # 3def
+
 =head2 method make
 
     method make(Match:D: Mu $ast)