Examples of com.ibm.icu.util.StringTokenizer

com.ibm.icu.util.StringTokenizer
{@icuenhanced java.util.Calendar}. {@icu _usage_}
The string tokenizer class allows an application to break a string into tokens by performing code point comparison. The StringTokenizer methods do not distinguish among identifiers, numbers, and quoted strings, nor do they recognize and skip comments.

The set of delimiters (the codepoints that separate tokens) may be specified either at creation time or on a per-token basis.

An instance of StringTokenizer behaves in one of three ways, depending on whether it was created with the returnDelims and coalesceDelims flags having the value true or false:
- If returnDelims is false, delimiter code points serve to separate tokens. A token is a maximal sequence of consecutive code points that are not delimiters.
- If returnDelims is true, delimiter code points are themselves considered to be tokens. In this case, if coalesceDelims is true, such tokens will be the maximal sequence of consecutive code points that are delimiters. If coalesceDelims is false, a token will be received for each delimiter code point.
A token is thus either one delimiter code point, a maximal sequence of consecutive code points that are delimiters, or a maximal sequence of consecutive code points that are not delimiters.

A StringTokenizer object internally maintains a current position within the string to be tokenized. Some operations advance this current position past the code point processed.

A token is returned by taking a substring of the string that was used to create the StringTokenizer object.

Example of the use of the default delimiter tokenizer.
```
 StringTokenizer st = new StringTokenizer("this is a test"); while (st.hasMoreTokens()) { println(st.nextToken()); } 
```
prints the following output:
```
 this is a test 
```
Example of the use of the tokenizer with user specified delimiter.
```
 StringTokenizer st = new StringTokenizer("this is a test with supplementary characters \ud800\ud800\udc00\udc00", " \ud800\udc00"); while (st.hasMoreTokens()) { println(st.nextToken()); } 
```
prints the following output:
```
 this is a test with supplementary characters \ud800 \udc00 
```
@author syn wee @stable ICU 2.4

  private static boolean isValidTE(String value)
  {
    if (value.trim().length() == 0)
      return true;


    StringTokenizer st = new StringTokenizer(value, ",");
    while (st.hasMoreElements())
    {
      String str = st.nextToken().trim();
      if (st.equals("trailers"))
        return true;


      int idx = str.indexOf(";");
      if (idx == -1)
      {

View Full Code Here

   */
  private static boolean isValidUserAgent(String value)
  {
    if (value.length() == 0)
      return false;
    StringTokenizer st = new StringTokenizer(value, " ");
    while (st.hasMoreElements())
    {
      String str = st.nextToken();
      if (!isProduct(str) && !isComment(str))
        return false;


    }

View Full Code Here

  private static boolean isValidAcceptLanguage(String value)
  {
    if (value.trim().length() == 0)
      return false;


    StringTokenizer st = new StringTokenizer(value, ",");
    while (st.hasMoreElements())
    {
      String str = st.nextToken().trim();
      int idx = str.indexOf(";");
      if (idx == -1)
      {
        if (!isToken(str))
          return false;

View Full Code Here

   */
  private static boolean isLanguageRange(String str)
  {
    if (str.trim().equals("*"))
      return true;
    StringTokenizer st = new StringTokenizer(str, "-");
    while (st.hasMoreElements())
    {
      if (!is8ALPHA(st.nextToken()))
        return false;
    }
    return true;
  }

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  private static boolean isValidAcceptEncoding(String value)
  {
    if (value.trim().length() == 0)
      return false;


    StringTokenizer st = new StringTokenizer(value, ",");
    while (st.hasMoreElements())
    {
      String str = st.nextToken().trim();
      int idx = str.indexOf(";");
      if (idx == -1)
      {
        if (!isToken(str) && !str.equals("*"))
          return false;

View Full Code Here

  private static boolean isValidAcceptCharSet(String value)
  {
    if (value.trim().length() == 0)
      return false;


    StringTokenizer st = new StringTokenizer(value, ",");
    while (st.hasMoreElements())
    {
      String str = st.nextToken().trim();
      int idx = str.indexOf(";");
      if (idx == -1)
      {
        if (!isToken(str) && !str.equals("*"))
          return false;

View Full Code Here

  private static boolean isValidAccept(String value)
  {
    if (value.trim().length() == 0)
      return true;


    StringTokenizer st = new StringTokenizer(value, ",");
    while (st.hasMoreElements())
    {
      String str = st.nextToken().trim();
      int idx = str.indexOf(";");
      if (idx == -1)
      {
        if (!isMediaRange(str))
          return false;

View Full Code Here

  private static boolean isAcceptParams(String string)
  {
    if (string.trim().length() == 0)
      return false;


    StringTokenizer st = new StringTokenizer(string, ";");
    String str = st.nextToken();


    int idx = str.indexOf("=");
    if (idx == -1)
    {
      if (str.equals("q") || !isToken(str))
        return false;
    }
    else
    {
      if (str.substring(0, idx).equals("q"))
      {
        if (!isQValue(str.substring(idx + 1)))
          return false;
      }
      else
      {
        if (!isParameterWithoutValue(str))
          return false;
      }
    }


    while (st.hasMoreElements())
    {
      str = st.nextToken();
      if (!isParameterWithoutValue(str))
        return false;
    }
    return true;
  }

View Full Code Here

  private static boolean isExpectation(String value)
  {
    if (value.equals("100-continue"))
      return true;


    StringTokenizer st = new StringTokenizer(value, ";");
    while (st.hasMoreElements())
    {
      if (!isParameterWithoutValue(st.nextToken()))
        return false;
    }


    return true;
  }

View Full Code Here

   * @param value
   * @return boolean
   */
  private static boolean isCredentials(String value)
  {
    StringTokenizer st = new StringTokenizer(value, " ");
    if (!isToken(st.nextToken()))
      return false;


    while (st.hasMoreElements())
    {
      String param = st.nextToken(",");
      if (!isParameter(param))
        return false;
    }
    return true;
  }

View Full Code Here

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