This will trim trailing and leading white space from a Text node in a DOM structure. - Java XML

Java examples for XML:XML Node Text

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Description

This will trim trailing and leading white space from a Text node in a DOM structure.

Demo Code


//package com.java2s;

import org.w3c.dom.*;

public class Main {
    /**//  w w w  .j  a  v a 2  s.c o m
     * This will trim trailing and leading white space from a Text
     * node in a DOM structure.
     *
     * @return java.lang.String
     * @param textNode org.w3c.dom.Text
     */
    public static String trim(Text textNode) {
        String text = textNode.getNodeValue();
        if (null == text)
            return "";

        char[] array = text.toCharArray();
        int length = array.length;
        if (0 == length)
            return "";

        // Strip leading white space

        int start = 0;
        boolean isWhite = Character.isWhitespace(array[start]);
        while (isWhite) {
            ++start;
            if (start >= length)
                return ""; // It was all white
            isWhite = Character.isWhitespace(array[start]);
        }

        // Strip trailing white space

        int end = length - 1;
        isWhite = Character.isWhitespace(array[end]);
        while (isWhite) {
            --end;
            if (end <= 0)
                return ""; // It was all white
            isWhite = Character.isWhitespace(array[end]);
        }

        // If we get here, we had some non-whitespace

        return new String(array, start, end - start + 1);
    }
}

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