xtc.parser
Class CharClass.Parser

java.lang.Object
  xtc.parser.CharClass.Parser

Enclosing class:

CharClass

public static class CharClass.Parser
extends java.lang.Object

Parser for a character class specification.

Field Summary

protected int	idx The index into the string.
protected java.lang.String	s The string.

Constructor Summary

CharClass.Parser(java.lang.String s)
Create a new character class parser for the specified string.

Method Summary

boolean	hasNext() Determine whether there are more characters.
boolean	hasRange() Determine whether the next character is a range delimiter '-'.
char	next() Return the next character.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

s

protected java.lang.String s

The string.

idx

protected int idx

The index into the string.

Constructor Detail

CharClass.Parser

public CharClass.Parser(java.lang.String s)

Create a new character class parser for the specified string. Note that the string must not include the leading '[' and trailing ']' characters.

Parameters:

s - The string to parse.

Method Detail

hasNext

public boolean hasNext()

Determine whether there are more characters.

Returns:

true if there are more characters.

hasRange

public boolean hasRange()

Determine whether the next character is a range delimiter '-'. Note that this test is destructive: if the next character is a range delimiter, it is consumed.

Returns:

true if the next character is a range delimiter.

next

public char next()

Return the next character. If the character is represented by an escape sequence (including Java Unicode and regex-like escapes), it is unescaped.

Returns:

The next character.