polyglot.lex

Interface Lexer

All Known Implementing Classes:

Lexer_c, Lexer_c, Lexer_c, Lexer_c

public interface Lexer

The interface "Lexer" describes lexers produced by JFlex for Polyglot.

Field Summary

Fields

Modifier and Type	Field and Description
static int	YYEOF This character denotes the end of file

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	file() The file being scanned, for use in constructing diagnostic messages.
Token	nextToken() Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.
java.lang.String	path() The path to the file being scanned, for use in constructing diagnostic messages.

Field Detail

YYEOF

static final int YYEOF

This character denotes the end of file

See Also:

Constant Field Values

Method Detail

file

java.lang.String file()

The file being scanned, for use in constructing diagnostic messages.

path

java.lang.String path()

The path to the file being scanned, for use in constructing diagnostic messages.

nextToken

Token nextToken()
                throws java.io.IOException

Resumes scanning until the next regular expression is matched, the end of input is encountered or an I/O-Error occurs.

Returns:

the next token

Throws:

java.io.IOException - if any I/O-Error occurs