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ObjectJlsTokenizer
public class JlsTokenizer
Providing much the same functionality as java.util.StringTokenizer, but avoiding some of its more common problems. In particular:
x,,yyields a blank token between x and y, whereas with StringTokenizer it is swallowed.
,a,yields a blank token both before and after a, whereas with StringTokenizer both are swallowed.
This class is deliberately not a subclass of StringTokenizer as the behaviour is significantly different. It can, however, be used in many places where StringTokenizer is appropriate.
Constructor Summary | |
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JlsTokenizer(String str)
Constructs a string tokenizer for the specified string. |
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JlsTokenizer(String str,
String delim)
Constructs a string tokenizer for the specified string. |
Method Summary | |
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int |
countTokens()
Calculates the number of times that this tokenizer's nextToken method can be called before it generates an
exception. |
boolean |
hasMoreElements()
Returns the same value as the hasMoreTokens
method. |
boolean |
hasMoreTokens()
Tests if there are more tokens available from this tokenizer's string. |
Object |
nextElement()
Returns the same value as the nextToken method,
except that its declared return value is Object rather than
String . |
String |
nextToken()
Returns the next token from this string tokenizer. |
String |
remainingToken()
Returns the rest of the string. |
Methods inherited from class Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JlsTokenizer(String str)
" \t\n\r\f"
: the space character,
the tab character, the newline character, the carriage-return character,
and the form-feed character. Delimiter characters themselves will
not be treated as tokens.
str
- a string to be parsed.public JlsTokenizer(String str, String delim)
delim
argument are the delimiters
for separating tokens. Delimiter characters themselves will not
be treated as tokens.
str
- a string to be parsed.delim
- the delimiters.Method Detail |
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public boolean hasMoreTokens()
true
if and only if there is at least one token
in the string after the current position; false
otherwise.public String nextToken()
NoSuchElementException
- if there are no more tokens in this
tokenizer's string.public String remainingToken()
NoSuchElementException
- if there are no more tokens in this
tokenizer's string.public boolean hasMoreElements()
hasMoreTokens
method. It exists so that this class can implement the
Enumeration
interface.
true
if there are more tokens;
false
otherwise.public Object nextElement()
nextToken
method,
except that its declared return value is Object
rather than
String
. It exists so that this class can implement the
Enumeration
interface.
NoSuchElementException
- if there are no more tokens in this
tokenizer's string.public int countTokens()
nextToken
method can be called before it generates an
exception. The current position is not advanced.
uk.org.skeet.util.JlsTokenizer#nextToken()
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