com.io7m.jsx.lexer

Class Lexer

java.lang.Object

com.io7m.jsx.lexer.Lexer

All Implemented Interfaces:

LexerType

public final class Lexer
extends Object
implements LexerType

The default implementation of the LexerType type.

Method Summary

Modifier and Type	Method and Description
Optional<Path>	getFile()
static LexerType	newLexer(LexerConfiguration c, com.io7m.jeucreader.UnicodeCharacterReaderPushBackType r) Construct a new lexer.
void	setFile(Optional<Path> f) Set the file that will appear in lexical information.
TokenType	token()

Methods inherited from class java.lang.Object

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

Method Detail

newLexer

public static LexerType newLexer(LexerConfiguration c,
                                 com.io7m.jeucreader.UnicodeCharacterReaderPushBackType r)

Construct a new lexer.

Parameters:

c - The lexer configuration

r - The unicode character reader

Returns:

A new lexer

getFile

public Optional<Path> getFile()

Returns:

The configured file, if any

setFile

public void setFile(Optional<Path> f)

Set the file that will appear in lexical information.

Parameters:

f - The file, if any

token

public TokenType token()
                throws IOException,
                       LexerException

Specified by:

token in interface LexerType

Returns:

The next token from the input.

Throws:

IOException - On I/O errors.

LexerException - On lexical errors.