Package com.github._1c_syntax.bsl.parser

Class CaseChangingCharStream

java.lang.Object

com.github._1c_syntax.bsl.parser.CaseChangingCharStream

All Implemented Interfaces:

CharStream, IntStream, UnicodeCharStream

public class CaseChangingCharStream
extends Object
implements UnicodeCharStream

This class supports case-insensitive lexing by wrapping an existing CharStream and forcing the lexer to see either upper or lowercase characters. Grammar literals should then be either upper or lower case such as 'BEGIN' or 'begin'. The text of the character stream is unaffected. Example: input 'BeGiN' would match lexer rule 'BEGIN' if constructor parameter upper=true but getText() would return 'BeGiN'.

Field Summary

Fields inherited from interface org.antlr.v4.runtime.IntStream

EOF, UNKNOWN_SOURCE_NAME

Constructor Summary

Constructors

Constructor	Description
CaseChangingCharStream(UnicodeCharStream stream)	Constructs a new CaseChangingCharStream wrapping the given UnicodeCharStream forcing all characters to upper case.

Method Summary

Modifier and Type	Method	Description
void	consume()
String	getSourceName()
String	getText(Interval interval)
int	index()
int	LA(int i)
int	mark()
void	release(int marker)
void	seek(int index)
int	size()
boolean	supportsUnicodeCodePoints()

Methods inherited from class java.lang.Object

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

Constructor Details

CaseChangingCharStream

public CaseChangingCharStream(UnicodeCharStream stream)

Constructs a new CaseChangingCharStream wrapping the given UnicodeCharStream forcing all characters to upper case.

Parameters:

stream - The stream to wrap.

Method Details

getText

public String getText(Interval interval)

Specified by:

getText in interface CharStream

consume

public void consume()

Specified by:

consume in interface IntStream

LA

public int LA(int i)

Specified by:

LA in interface IntStream

mark

public int mark()

Specified by:

mark in interface IntStream

release

public void release(int marker)

Specified by:

release in interface IntStream

index

public int index()

Specified by:

index in interface IntStream

seek

public void seek(int index)

Specified by:

seek in interface IntStream

size

public int size()

Specified by:

size in interface IntStream

getSourceName

public String getSourceName()

Specified by:

getSourceName in interface IntStream

supportsUnicodeCodePoints

public boolean supportsUnicodeCodePoints()

Specified by:

supportsUnicodeCodePoints in interface UnicodeCharStream