com.openhtmltopdf.util.OpenUtil Maven / Gradle / Ivy

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Open HTML to PDF is a CSS 2.1 renderer written in Java. This artifact contains the core rendering and layout code.

There is a newer version: 1.0.10

package com.openhtmltopdf.util;

public class OpenUtil {

	private OpenUtil() {}

	/**
	 * Checks if a code point is printable. If false, it can be safely discarded at the 
	 * rendering stage, else it should be replaced with the replacement character,
	 * if a suitable glyph can not be found.
	 * @param codePoint
	 * @return whether codePoint is printable
	 */
	public static boolean isCodePointPrintable(int codePoint) {
		if (Character.isISOControl(codePoint))
			return false;
		
		int category = Character.getType(codePoint);
		
		return !(category == Character.CONTROL ||
				 category == Character.FORMAT ||
				 category == Character.UNASSIGNED ||
				 category == Character.PRIVATE_USE ||
				 category == Character.SURROGATE);
	}
	
	public static Integer parseIntegerOrNull(String possibleInteger) {
	        try {
	            return Integer.parseInt(possibleInteger);
	        } catch (NumberFormatException e) {
	            return null;
	        }
	}
}