yypushback(int)

After the scanner has read in characters we can tell it to push the characters back into the input stream. This is accomplished using the JFlex method, yypushback. The argument to yypushback is an integer, representing the number of characters that we want pushed back onto the input stream.

After pushing characters back onto the input stream the lexer will read them again.

After the scanner has read in characters we can tell it to push the characters back into the input stream. This is accomplished using the JFlex method, yypushback. The argument to yypushback is an integer, representing the number of characters that we want pushed back onto the input stream.