StaticVariables.java

package edu.gatech.i3l.omop.mapping;

public class StaticVariables {
	public static String Digits = "(\\p{Digit}+)";
	public static String HexDigits = "(\\p{XDigit}+)";
	// an exponent is 'e' or 'E' followed by an optionally
	// signed decimal integer.
	public static String Exp = "[eE][+-]?" + Digits;
	public static String fpRegex = ("[\\x00-\\x20]*" + // Optional leading "whitespace"
		"[+-]?(" + // Optional sign character
		"NaN|" + // "NaN" string
		"Infinity|" + // "Infinity" string

		// A decimal floating-point string representing a finite positive
		// number without a leading sign has at most five basic pieces:
		// Digits . Digits ExponentPart FloatTypeSuffix
		//
		// Since this method allows integer-only strings as input
		// in addition to strings of floating-point literals, the
		// two sub-patterns below are simplifications of the grammar
		// productions from the Java Language Specification, 2nd
		// edition, section 3.10.2.
	
		// Digits ._opt Digits_opt ExponentPart_opt FloatTypeSuffix_opt
		"(((" + Digits + "(\\.)?(" + Digits + "?)(" + Exp + ")?)|" +
	
		// . Digits ExponentPart_opt FloatTypeSuffix_opt
				"(\\.(" + Digits + ")(" + Exp + ")?)|" +
	
		// Hexadecimal strings
				"((" +
				// 0[xX] HexDigits ._opt BinaryExponent FloatTypeSuffix_opt
				"(0[xX]" + HexDigits + "(\\.)?)|" +
	
		// 0[xX] HexDigits_opt . HexDigits BinaryExponent FloatTypeSuffix_opt
				"(0[xX]" + HexDigits + "?(\\.)" + HexDigits + ")" +
	
		")[pP][+-]?" + Digits + "))" + "[fFdD]?))" + "[\\x00-\\x20]*"); // Optional
																		// trailing
																		// "whitespace"
}