Field Detail

• INTEGER_POOL_MAX_VALUE

  public static final int INTEGER_POOL_MAX_VALUE

  See Also:

  Constant Field Values

Constructor Detail

• Utils

  public Utils()

Method Detail

• stripFileExtension

  public static String stripFileExtension(String name)

  Integer objects are immutable so share all Integers with the same value up to some max size. Use an array as a perfect hash. Return shared object for 0..INTEGER_POOL_MAX_VALUE or a new Integer object with x in it. Java's autoboxing only caches up to 127. public static Integer integer(int x) { if ( x<0 || x>INTEGER_POOL_MAX_VALUE ) { return new Integer(x); } if ( ints[x]==null ) { ints[x] = new Integer(x); } return ints[x]; }

• join

  public static String join(Object[] a,
                            String separator)

• sortLinesInString

  public static String sortLinesInString(String s)

• nodesToStrings

  public static <T extends GrammarAST> List<String> nodesToStrings(List<T> nodes)

• capitalize

  public static String capitalize(String s)

• decapitalize

  public static String decapitalize(String s)

• select

  public static <From,To> List<To> select(List<From> list,
                                          Utils.Func1<From,To> selector)

  apply methodName to list and return list of results. method has no args. This pulls data out of a list essentially.

• find

  public static <T> T find(List<?> ops,
                           Class<T> cl)

  Find exact object type or sublass of cl in list

• indexOf

  public static <T> int indexOf(List<? extends T> elems,
                                Utils.Filter<T> filter)

• lastIndexOf

  public static <T> int lastIndexOf(List<? extends T> elems,
                                    Utils.Filter<T> filter)

• setSize

  public static void setSize(List<?> list,
                             int size)