Groovy mode

​x
 
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//Pattern for groovy script
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def p = ~/.*\.groovy/
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new File( 'd:\\scripts' ).eachFileMatch(p) {f ->
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  // imports list
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  def imports = []
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  f.eachLine {
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    // condition to detect an import instruction
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    ln -> if ( ln =~ '^import .*' ) {
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      imports << "${ln - 'import '}"
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    }
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  }
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  // print thmen
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  if ( ! imports.empty ) {
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    println f
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    imports.each{ println "   $it" }
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  }
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}
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​
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/* Coin changer demo code from http://groovy.codehaus.org */
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​
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enum UsCoin {
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  quarter(25), dime(10), nickel(5), penny(1)
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  UsCoin(v) { value = v }
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  final value
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}
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​
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enum OzzieCoin {
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  fifty(50), twenty(20), ten(10), five(5)
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  OzzieCoin(v) { value = v }
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  final value
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}
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​
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def plural(word, count) {
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  if (count == 1) return word
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  word[-1] == 'y' ? word[0..-2] + "ies" : word + "s"
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}
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​
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def change(currency, amount) {
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  currency.values().inject([]){ list, coin ->
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     int count = amount / coin.value
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     amount = amount % coin.value
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     list += "$count ${plural(coin.toString(), count)}"
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  }
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}
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​

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