org.yaml.snakeyaml.scanner
Class ScannerImpl

java.lang.Object
  org.yaml.snakeyaml.scanner.ScannerImpl

All Implemented Interfaces:

Scanner

public final class ScannerImpl
extends Object
implements Scanner

 Scanner produces tokens of the following types:
 STREAM-START
 STREAM-END
 DIRECTIVE(name, value)
 DOCUMENT-START
 DOCUMENT-END
 BLOCK-SEQUENCE-START
 BLOCK-MAPPING-START
 BLOCK-END
 FLOW-SEQUENCE-START
 FLOW-MAPPING-START
 FLOW-SEQUENCE-END
 FLOW-MAPPING-END
 BLOCK-ENTRY
 FLOW-ENTRY
 KEY
 VALUE
 ALIAS(value)
 ANCHOR(value)
 TAG(value)
 SCALAR(value, plain, style)
 Read comments in the Scanner code for more details.
 

Field Summary

static Map<Character,Integer>	ESCAPE_CODES
static Map<Character,String>	ESCAPE_REPLACEMENTS

Constructor Summary

ScannerImpl(StreamReader reader)

Method Summary

boolean	checkToken(Token.ID... choices) Check if the next token is one of the given types.
Token	getToken() Return the next token.
Token	peekToken() Return the next token, but do not delete if from the queue.

Methods inherited from class java.lang.Object

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

Field Detail

ESCAPE_REPLACEMENTS

public static final Map<Character,String> ESCAPE_REPLACEMENTS

ESCAPE_CODES

public static final Map<Character,Integer> ESCAPE_CODES

Constructor Detail

ScannerImpl

public ScannerImpl(StreamReader reader)

Method Detail

checkToken

public boolean checkToken(Token.ID... choices)

Check if the next token is one of the given types.

Specified by:

checkToken in interface Scanner

Parameters:

choices - token IDs.

Returns:

true if the next token can be assigned to a variable of at least one of the given types. Returns false if no more tokens are available.

peekToken

public Token peekToken()

Return the next token, but do not delete if from the queue.

Specified by:

peekToken in interface Scanner

Returns:

The token that will be returned on the next call to Scanner.getToken()

getToken

public Token getToken()

Return the next token.

Specified by:

getToken in interface Scanner