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

Fields

Modifier and Type	Field and Description
protected int	idx The index into the string.
protected java.lang.String	s The string.

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
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.