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package org.openoffice.xmerge.converter.xml.sxw.wordsmith;

/**
 *  WordSmith utility class.
 *
 *  @author   David Proulx
 */
class util {

    /**
     *  Convert 2 bytes to an integer.
     *
     *  @param  data   <code>byte</code> data to convert.
     *  @param  index  Index to convert.
     *
     *  @return  Converted integer.
     */
    static int intFrom2bytes(byte[] data, int index) {
        return (((data[index] & 0xFF) << 8)
                | (data[index+1] & 0xFF));

    }


    /**
     *  Convert 4 bytes to an integer.
     *
     *  @param  data   <code>byte</code> data to convert.
     *  @param  index  Index to convert.
     *
     *  @return  Converted integer.
     */
    static int intFrom4bytes(byte[] data, int index) {
        return (((data[index] & 0xFF) << 24)
          | ((data[index + 1] & 0xFF) << 16)
          | ((data[index + 2] & 0xFF) << 8)
                | (data[index+3] & 0xFF));

    }
}