modify existing column example

[MojoFacets.git] / README

diff --git a/README b/README
index 750c6f8..1d55870 100644 (file)
--- a/README
+++ b/README
@@ -58,3 +58,10 @@ array of values if you are creating new columns, even for single value.
     push @{ $rec->{century} }, int($year/100)+1;
   }
 
+* modify existing column
+
+  foreach ( @{ $rec->{'Cited Author'} } ) {
+    s/^\.+//;
+    $_ = uc $_; # assigment is needed to modify value!
+  }
+