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The following page has been changed by ManikSurtani: http://wiki.apache.org/jakarta/RegexpKeyedMap New page: A map that uses a regular expression as a key. '''Purpose:''' To create a Java Map that allowed me to pass in any arbitrary String as a key to it's get() method, and for the Map implementation to attempt to match this key against various regexp-keys it would store, and return any matching value (or null if nothing matches) '''Dependencies:''' This class relies on v1.3 of Jakarta's Regexp package '''Examples:''' Ok, that explanation above was rubbish. Nothing works quite as well as an example. Here we go: {{{ RegexpKeyedMap map = new RegexpKeyedMap(); map.put( "^Green.*$", "Your sentence starts with Green" ); map.put( "^Blue.*$", "Your sentence starts with Blue" ); map.put( "Orange", "Your sentence contains the word Orange" ); // contains some stuff typed in my the user String sentence = "Green apples happen to be my favourite"; // responseText will be "Your sentence starts with Green" String responseText = map.get( sentence ); sentence = "I like green apples a lot"; // responseText will be null since nothing matched responseText = map.get( sentence ); sentence = "Green apples and Oranges are both quite good"; // responseText will be indeterminate - it could be either of "Your sentence starts with Green" // or "Your sentence contains the word Orange" - this is because the RegexpKeyedMap uses a HashMap // to store its contents and ordering of elements is not guaranteed. The first match is returned. responseText = map.get( sentence ); }}} '''Download:''' here... '''Author:''' Manik Surtani (manik at surtani dot org)
