sjm.parse.tokens
Class Literal

java.lang.Object
  |
  +--sjm.parse.Parser
        |
        +--sjm.parse.Terminal
              |
              +--sjm.parse.tokens.Literal

Direct Known Subclasses:

CaselessLiteral

public class Literal

extends Terminal

A Literal matches a specific String from an assembly.

Version:

1.0

Author:

Steven J. Metsker

Field Summary

protected Token

literal the literal to match

Fields inherited from class sjm.parse.Terminal

discard

Fields inherited from class sjm.parse.Parser

assembler, name

Constructor Summary

Literal(java.lang.String s)
Constructs a literal that will match the specified string.

Method Summary

protected boolean	qualifies(java.lang.Object o) Returns true if the literal this object equals an assembly's next element.
java.lang.String	unvisitedString(java.util.Vector visited) Returns a textual description of this parser.

Methods inherited from class sjm.parse.Terminal

accept, discard, match, matchOneAssembly, randomExpansion, setDiscard

Methods inherited from class sjm.parse.Parser

accept, add, best, bestMatch, completeMatch, elementClone, getName, matchAndAssemble, randomInput, setAssembler, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

literal

protected Token literal

the literal to match

Constructor Detail

Literal

public Literal(java.lang.String s)

Constructs a literal that will match the specified string.

Parameters:

string - the string to match as a token

Method Detail

qualifies

protected boolean qualifies(java.lang.Object o)

Returns true if the literal this object equals an assembly's next element.

Overrides:

qualifies in class Terminal

Parameters:

object - an element from an assembly

Returns:

true, if the specified literal equals the next token from an assembly

unvisitedString

public java.lang.String unvisitedString(java.util.Vector visited)

Returns a textual description of this parser.

Overrides:

unvisitedString in class Terminal

Parameters:

vector - a list of parsers already printed in this description

Returns:

string a textual description of this parser

See Also:

Parser.toString()