Class cynosurex.util.EnhancedStringTokenizer
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Class cynosurex.util.EnhancedStringTokenizer
java.lang.Object
|
+----cynosurex.util.EnhancedStringTokenizer
- public class EnhancedStringTokenizer
- extends Object
- implements Enumeration
EnhancedStringTokenizer is an enhancement of the
Java StringTokenizer class.
It added the ability to peek at the next token,
to return the last token, and to reset the queue.
-
EnhancedStringTokenizer(String)
- Constructs a string tokenizer for the specified string.
-
EnhancedStringTokenizer(String, String)
- Constructs a string tokenizer for the specified string.
-
EnhancedStringTokenizer(String, String, boolean)
- Constructs a string tokenizer for the specified string.
-
EnhancedStringTokenizer(String, String, boolean, boolean)
-
Constructs a string tokenizer for the specified string.
-
countTokens()
- Calculates the number of times that this tokenizer's
nextToken
method can be called before it generates an
exception.
-
hasMoreElements()
- Returns the same value as the
hasMoreTokens
method.
-
hasMoreTokens()
- Tests if there are more tokens available from this tokenizer's string.
-
lastToken()
- Method to return the last token in the queue.
-
nextElement()
- Returns the same value as the
nextToken
method,
except that its declared return value is Object
rather than
String
.
-
nextToken()
- Returns the next token from this string tokenizer.
-
nextToken(String)
- Returns the next token in this string tokenizer's string.
-
peekToken()
- Method to return the next token without removing it from the
queue.
-
reset()
- Method to return the StringTokenizer to the original queue.
EnhancedStringTokenizer
public EnhancedStringTokenizer(String str,
String delim,
boolean returnTokens,
boolean multiDelim)
-
Constructs a string tokenizer for the specified string. The
characters in the delim
argument are the delimiters
for separating tokens.
If the returnTokens
flag is true
, then
the delimiter characters are also returned as tokens. If the flag is
false
, the delimiter characters are skipped and only
serve as separators between tokens.
If the multiDelim
flag is true
, then
multiple delimiters are returned as one token. If false,
each delimiter is returned as a string of length one.
This flag has no effect if delimiters are not returned as tokens.
- Parameters:
- str - a string to be parsed.
- delim - the delimiters.
- returnTokens - flag indicating whether to return the delimiters
as tokens.
- multiDelim - flag indicating whether to return multiple delimiters
as one token.
EnhancedStringTokenizer
public EnhancedStringTokenizer(String str,
String delim,
boolean returnTokens)
- Constructs a string tokenizer for the specified string. The
characters in the
delim
argument are the delimiters
for separating tokens.
If the returnTokens
flag is true
, then
the delimiter characters are also returned as tokens. Each
delimiter is returned as a string of length one. If the flag is
false
, the delimiter characters are skipped and only
serve as separators between tokens.
- Parameters:
- str - a string to be parsed.
- delim - the delimiters.
- returnTokens - flag indicating whether to return the delimiters
as tokens.
EnhancedStringTokenizer
public EnhancedStringTokenizer(String str,
String delim)
- Constructs a string tokenizer for the specified string. The
characters in the
delim
argument are the delimiters
for separating tokens.
- Parameters:
- str - a string to be parsed.
- delim - the delimiters.
EnhancedStringTokenizer
public EnhancedStringTokenizer(String str)
- Constructs a string tokenizer for the specified string. The
tokenizer uses the default delimiter set, which is
"\t\n\r"
: the space character, the tab
character, the newline character, and the carriage-return character.
- Parameters:
- str - a string to be parsed.
hasMoreTokens
public boolean hasMoreTokens()
- Tests if there are more tokens available from this tokenizer's string.
- Returns:
-
true
if there are more tokens available from this
tokenizer's string; false
otherwise.
nextToken
public String nextToken()
- Returns the next token from this string tokenizer.
- Returns:
- the next token from this string tokenizer.
- Throws: NoSuchElementException
- if there are no more tokens in this
tokenizer's string.
nextToken
public String nextToken(String delim)
- Returns the next token in this string tokenizer's string. The new
delimiter set remains the default after this call.
- Parameters:
- delim - the new delimiters.
- Returns:
- the next token, after switching to the new delimiter set.
- Throws: NoSuchElementException
- if there are no more tokens in this
tokenizer's string.
hasMoreElements
public boolean hasMoreElements()
- Returns the same value as the
hasMoreTokens
method. It exists so that this class can implement the
Enumeration
interface.
- Returns:
-
true
if there are more tokens;
false
otherwise.
- See Also:
- Enumeration, hasMoreTokens
nextElement
public Object nextElement()
- Returns the same value as the
nextToken
method,
except that its declared return value is Object
rather than
String
. It exists so that this class can implement the
Enumeration
interface.
- Returns:
- the next token in the string.
- Throws: NoSuchElementException
- if there are no more tokens in this
tokenizer's string.
- See Also:
- Enumeration, nextToken
countTokens
public int countTokens()
- Calculates the number of times that this tokenizer's
nextToken
method can be called before it generates an
exception.
- Returns:
- the number of tokens remaining in the string using the current
delimiter set.
- See Also:
- nextToken
peekToken
public String peekToken()
- Method to return the next token without removing it from the
queue.
lastToken
public String lastToken()
- Method to return the last token in the queue.
reset
public void reset()
- Method to return the StringTokenizer to the original queue.
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