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package com.eurodyn.qlack.commons.string;

import org.apache.commons.lang.StringEscapeUtils;

/**
 * @author European Dynamics S.A.
 */
public class StringEscape {

  private StringEscape() {
  }

  /**
   * Html escapes the characters in a string. For example & will become &
   *
   * @param originalString The string to escape
   * @return The escaped string
   */
  public static String escapeHtml(String originalString) {
    return StringEscapeUtils.escapeHtml(originalString);
  }

  /**
   * Html un-escapes the characters in a string. For example & will become &
   *
   * @param originalString The string to unescape
   * @return The unescaped string
   */
  public static String unescapeHtml(String originalString) {
    return StringEscapeUtils.unescapeHtml(originalString);
  }

  /**
   * Replaces the line breaks in a string (\n) with html line breaks (<br/>)
   *
   * @param originalString The string to escape
   * @return The escaped string
   */
  public static String escapeLineBreaks(String originalString) {
    return org.apache.commons.lang.StringUtils.replace(originalString, "\n", "
");
  }

  /**
   * Replaces the Carriage Return in a string (\r) with blank
   *
   * @param originalString The string to escape
   * @return The escaped string
   */
  public static String escapeCarriageReturn(String originalString) {
    return org.apache.commons.lang.StringUtils.replace(originalString, "\r", "");
  }

  /**
   * Replaces html line breaks (<br/>) with string line breaks (\n)
   *
   * @param originalString The string to unescape
   * @return String The unescaped string
   */
  public static String unescapeLineBreaks(String originalString) {
    return org.apache.commons.lang.StringUtils.replace(originalString, "
", "\n");
  }

  /**
   * Remove tags from a string.
   */
  public static String removeTags(String originalString) {
    return originalString.replaceAll("<.*?>", "");
  }
}