when:
        def actual = UserGuideTransformTask.normalise(content)

        then:
        actual == "test    test    test"
    }

    def usesUnixLineEndings() {
        given:
        String content = "test\r\ntest\r\ntest"
        when:
        def actual = UserGuideTransformTask.normalise(content)

        then:
        actual == "test\ntest\ntest"
    }

        doc.documentElement.depthFirst().findAll { it.name() == 'programlisting' || it.name() == 'screen' }.each {Element element ->
            element.setTextContent(normalise(element.getTextContent()))
        }
    }

    static String normalise(String content) {
        content.replace('\t', '    ').stripIndent().replace('\r\n', '\n')
    }

    def transformApiLinks(Document doc) {

 */
package org.codelibs.fess.suggest.normalizer;

/**
 * An interface for normalizing text.
 * Implementations of this interface should provide a method to normalize
 * a given text based on the specified field and optional language parameters.
 */
public interface Normalizer {
    /**
     * Normalizes the given text.
     * @param text The text to normalize
     * @param field The field name

                chain.add(new LangAnalyzerNormalizer(lang));
            }
            normalizer = chain;
        }
        return normalizer.normalize(text, field);
    }

    /**
     * Language-specific analyzer normalizer.
     */
    protected class LangAnalyzerNormalizer implements Normalizer {
        /**
         * The language used for normalization.
         */
        protected final String lang;

    }

    /**
     * Normalizes the string representation of a number.
     *
     * @param s
     *            A string representing a number
     * @return The normalized string
     * @see #normalize(String, Locale)
     */
    public static String normalize(final String s) {
        return normalize(s, LocaleUtil.getDefault());
    }

    /**

        this.readingConverter = readingConverter;
        return this;
    }

    /**
     * Sets the normalizer.
     * @param normalizer The normalizer.
     * @return This SuggestIndexer instance.
     */
    public SuggestIndexer setNormalizer(final Normalizer normalizer) {
        this.normalizer = normalizer;
        return this;
    }

    /**
     * Sets the analyzer.
     * @param analyzer The analyzer.

 * <pre>
 * {@code
 * HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();
 * String normalized = normalizer.normalize("ｶﾞｷﾞｸﾞｹﾞｺﾞ", "field");
 * System.out.println(normalized); // Outputs: ガギグゲゴ
 * }
 * </pre>
 *
 * <p>Note: This class assumes that the input string contains valid Hankaku Kana characters
 * and does not perform any validation on the input.</p>
 *
 * @see Normalizer
 */

    public static String toString(final BigDecimal dec) {
        return dec.toPlainString();
    }

    /**
     * Normalizes a {@link BigDecimal}.
     *
     * @param dec
     *            The {@link BigDecimal} to normalize
     * @return The normalized data
     */
    private static BigDecimal normalize(final BigDecimal dec) {
        return new BigDecimal(dec.toPlainString());
    }

     * @return The normalized URL or {@code null} if the input was {@code null}.
     */
    String normalize(String url);

    }

    private UrlNormalizer normalizer;

    UrlNormalizingPostProcessor(UrlNormalizer normalizer) {
        this.normalizer = normalizer;
    }

    @Override
    public Object execute(String expression, Object value) {
        if (value != null && URL_EXPRESSIONS.contains(expression)) {
            return normalizer.normalize(value.toString());
        }

        return null;
    }