/usr/share/doc/jflex/examples/cup/README is in jflex 1.4.3-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | A small JFlex+Cup example
It comes from a short article series in the Linux Gazette by Richard
A. Sevenich and Christopher Lopes, titled "Compiler Construction
Tools". The article series starts at
http://www.linuxgazette.com/issue39/sevenich.html
Small changes and updates to newest JFlex+Cup versions by Gerwin Klein
To compile:
>jflex lcalc.flex
>java java_cup.Main < ycalc.cup
>javac Main.java
To run:
>java Main test.txt
Files:
Main.java demo of a main program
Makefile makefile to compile and test the example
README this file
lcalc.flex the lexer spec
output.good how the output should look like for the test
ycalc.cup the parser spec
test.txt sample input for testing
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