Inserting our own code into the lexer

In the JFlex specification we can specify code that we want inserted into the lexer. You put your code within %{ … %}

import java.util.*;

-- code --

-- rules --

mylexer.flex

import java.util.*;

class lex {

-- code --

-- scanner created -- using the rules

}

lex.java

In the JFlex specification we can specify code that we want inserted into the lexer. You put your code within %{ … %}