Package org.codehaus.groovy.syntax

Class Numbers

java.lang.Object
org.codehaus.groovy.syntax.Numbers
public class Numbers
extends java.lang.Object
Helper class for processing Groovy numeric literals.

  • Constructor Summary

    Constructors
    Constructor Description
    Numbers()  

  • Method Summary

    Modifier and Type Method Description
    static boolean isDigit​(char c)
    Returns true if the specified character is a base-10 digit.
    static boolean isHexDigit​(char c)
    Returns true if the specified character is a base-16 digit.
    static boolean isNumericTypeSpecifier​(char c, boolean isDecimal)
    Returns true if the specified character is a valid type specifier for a numeric value.
    static boolean isOctalDigit​(char c)
    Returns true if the specific character is a base-8 digit.
    static java.lang.Number parseDecimal​(java.lang.String text)
    Builds a Number from the given decimal descriptor.
    static java.lang.Number parseInteger​(AST reportNode, java.lang.String text)
    Deprecated.
    static java.lang.Number parseInteger​(java.lang.String text)
    Builds a Number from the given integer descriptor.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Numbers

      public Numbers()

  • Method Details

    • isDigit

      public static boolean isDigit​(char c)
      Returns true if the specified character is a base-10 digit.

    • isOctalDigit

      public static boolean isOctalDigit​(char c)
      Returns true if the specific character is a base-8 digit.

    • isHexDigit

      public static boolean isHexDigit​(char c)
      Returns true if the specified character is a base-16 digit.

    • isNumericTypeSpecifier

      public static boolean isNumericTypeSpecifier​(char c, boolean isDecimal)
      Returns true if the specified character is a valid type specifier for a numeric value.

    • parseInteger

      public static java.lang.Number parseInteger​(java.lang.String text)
      Builds a Number from the given integer descriptor. Creates the narrowest type possible, or a specific type, if specified.
      Parameters:
      text - literal text to parse
      Returns:
      instantiated Number object
      Throws:
      java.lang.NumberFormatException - if the number does not fit within the type requested by the type specifier suffix (invalid numbers don't make it here)

    • parseInteger

      @Deprecated public static java.lang.Number parseInteger​(AST reportNode, java.lang.String text)
      Deprecated.
      Builds a Number from the given integer descriptor. Creates the narrowest type possible, or a specific type, if specified.
      Parameters:
      reportNode - at node for error reporting in the parser
      text - literal text to parse
      Returns:
      instantiated Number object
      Throws:
      java.lang.NumberFormatException - if the number does not fit within the type requested by the type specifier suffix (invalid numbers don't make it here)

    • parseDecimal

      public static java.lang.Number parseDecimal​(java.lang.String text)
      Builds a Number from the given decimal descriptor. Uses BigDecimal, unless, Double or Float is requested.
      Parameters:
      text - literal text to parse
      Returns:
      instantiated Number object
      Throws:
      java.lang.NumberFormatException - if the number does not fit within the type requested by the type specifier suffix (invalid numbers don't make it here)