Re: JLex

"JoAnn Peeler" <>
13 May 2002 01:10:06 -0400

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From: "JoAnn Peeler" <>
Newsgroups: comp.compilers
Date: 13 May 2002 01:10:06 -0400
Organization: RoadRunner - TampaBay
References: 02-05-058
Keywords: Java
Posted-Date: 13 May 2002 01:10:03 EDT

"zumano" <> wrote in message
> I have downloaded JLex and I have a try at its sample lex file. However,
> I found that when I execute the command "java Sample < testing.txt", the
> input is only allowed to be in a single line format and it will give me
> the error "Lexical Error: Unmatched Input".

If you are using JLex on a Windows computer, you will need to add an extra
rule to the JLex script to ignore carriage returns (i.e. "\n"). Otherwise
when it matches this character at the end of a line it will produce the
error message you mentioned.

JoAnn Peeler

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